wordingT3 Subaru STI 2015-2021 replaces SPC lower control arm 67660 with Whiteline #KTA139A lower arms.
As printed in Fastrack
In T3 Spec Lines, Subaru STI (15-21), change Notes as follows: "Front Sway bar 27mm max and Rear Sway bar 24mm max allowed. Max spring rate (F) 800 lbs/in, (R) 900 lbs/in. Aftermarket Intercooler allowed. Killer B intake pipe #EJTI and coupler permitted. SPC lower control arm 67660 allowed. OEM spec block permitted Whiteline #KTA139A lower control arms allowed."
Porsche 986 Boxster S (00-04) Spec Line Additions for Suspension
suspension & brakesT3 Porsche Boxster/Boxster S 00-04 allows 28mm front and 24mm rear swaybars, 800# springs, Rennline S58.59.
As printed in Fastrack
In T3 Spec Lines, Porsche Boxster/ Boxster S (00-04), add to Notes the following: "Swaybars allowed 28mm (f) and 24 mm (r). 800# Springs allowed. Rennline (SKU S58.59) allowed."
slowerT3 Audi S4 12-14 front spring rate cut to 800 #/in, rear sway bar reduced to 22 mm, Runoffs qualification requires three Hoosier Super Tour races.
As printed in Fastrack
In T3 Spec Lines, Audi S4 (12-14), change Notes as follows: "Max spring rate 800 1100#/in. front and rear. F sway bar 30mm, rear sway bar 22 24 mm SPC front upper arms 81360. Separate coolant reservoir for the water to air intercooler permitted. SPC front upper camber arms permitted. AWE Coldfront coolant system permitted. **Must compete in 3 Hoosier Super Tour races to qualify for the Runoffs.**"
fasterT3 2015+ Mustang EcoBoost gains Ford Motorsports 6-piston 380mm brake kit, sway bars to 38mm front, 25mm rear.
As printed in Fastrack
In T3 Spec Lines, Ford Mustang EcoBoost (2015-), change Notes as follows: "Rear spring relocated to shock allowed. 800lbs springs (F/R) allowed. EcoBoost Performance Package allowed in part or complete. Optional: 6 speed automatic transmission (with paddle shifters). Speed Factory Intercooler, part # SF-55-002 permitted. BMR rear upper control arm camber links part #UTCA064 permitted. Non-EcoBoost Performance Pack base model 320mm front brakes, 2 piston front calipers allowed (-50lbs). Ford Motorsports 6-piston M2300V 380mm brake kit allowed with +100lb penalty, Sway bars allowed up to 35mm 38mm (F) 25mm (R)."
fasterT3 Chevrolet Camaro V6 (2016-2024) loses 50mm restrictor requirement, gains 20-inch wheels, weight drops to 3350 lbs, ineligible for 2026 Runoffs.
As printed in Fastrack
In T3 Spec Lines, delete Chevrolet Camaro V6 1LE (2016-) in its entirety. In T3 Spec Lines, Chevrolet Camaro V6 (2016-), change as follows: Year: "(2016-2024)" Restrictor required: "50mm restrictor" Max wheel size: "18 20 x 10" Weight: "3500 3350" Notes: "1LE options permitted. Cold air intake permitted. 800lb springs (F/R) permitted. Sway bars 38mm(F), 28mm(R) permitted. **This car is not eligible for Runoffs competition in 2026**"
fasterT3 Subaru BRZ 2022+ drops 225 lbs to 2750; Toyota GR86 2022+ loses brake part allowance with 100 lb penalty.
As printed in Fastrack
In T3 Spec Lines, Subaru BRZ (2022+), change as follows: Weight: "2975 2750" Notes: "Any spring up to 1000 F/R permitted. Front strut tower brace permitted. SPC or SPL rear lower control arms permitted. Cold air intake allowed. Header Permitted Subaru brake parts 26292CA070 & 26292CA060 allowed. Sway bars permitted 25m (f) 22mm (r) Max. OEM Trunk Spoiler permitted- E7210CC000." In T3 Spec Lines, Toyota GR86 (2022-), change Notes as follows: "Any spring up to 750 F/R permitted. Front strut tower brace permitted. SPC rear lower control arms permitted. Cold air intake allowed. Header Permitted Toyota brake parts SU003-07197 & SU003-07198 allowed with 100 lb penalty. Sway bars permitted
fasterT3 Nissan 350Z and 370Z max tire size increases from 255 to 275.
As printed in Fastrack
In T3 Spec Lines, Nissan 350Z Track/ Touring/Standard/ Nismo (03-08), change Max Tire Size as follows: "255 275" In T3 Spec Lines, Nissan 370Z, incl. Nismo (2009-2022), change Max Tire Size as follows: "255 275"
fasterT3 Camaro V6 (10-15) wheels increase to 20 x 9, permitted parts list updated with tower brace, shock mount, control arm reinforcement, master cylinder, rotors to 366mm, and sway bars to 28mm.
As printed in Fastrack
In T3 Spec Lines, Chevrolet Camaro V6 (10-15), change as follows: Max Wheel Size: "18 20 x 9" Notes: "800lb max spring F&R. SS front fascia, spoiler allowed. 1LE-SS Track Pack permitted part #23123398 . Tower Brace 22756880, red. TPR rear upper shock mount #22122, Pfadt lower control arm reinforcement # 1410135, # 009-92200, Brake Kit SS (p/n 23120542) For 2011 cars adaptor kit p/n (23484878). AC Delco Part #: 1750637 SS Master Cylinder permitted. Rear rotors up to 366mm permitted. 28mm Sway bars permitted Front and rear."
fasterT2-T4 adjustable toe links now allow performance alternative bushings and spherical bearings, previously prohibited except in specified examples.
As printed in Fastrack
In GCR, Section 9.1.9.D.5.a.1., change as follows: "T2-T4: A maximum of 3.5 degrees of negative camber is allowed on front and rear suspensions. Spec line part(s) may not be modified to increase caster and camber. Strut suspensions may adjust camber and caster by the use of eccentric bushings, eccentric bolts (crash bolts) at the strut-to-spindle, and/or by use of slotted adjustment plates at the top of the strut mounting plate. If upper strut slotted adjustment plates are used, they shall be located on existing chassis structure, utilizing the unmodified manufacturer’s original bolt holes and may not serve as reinforcement for that structure. Slotted adjustment plates (strut camber plates) may incorporate a single spherical bearing (spherical bushing) and a ball thrust bearing per strut tower. On other forms of suspension, camber and caster adjustment may be achieved by the use of shims and/or eccentric
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bushings. Adjustable toe links with spherical bearings are permitted and may serve no purpose other than adjusting toe angle. Adjustable toe links are permitted. They are allowed to have performance alternative bushings and spherical bearings. They may serve no purpose other than adjusting toe angle. Spherical bearings/bushings are not permitted in T2-T4 except for the specific examples listed in the class rules or vehicle spec line."
Request to Allow Spec Mustang to Touring 3 in Appendix M Trim
fasterT3 BMW Spec E9X tire width increases to 255 from 225; spec E9X tire or any DOT permitted.
As printed in Fastrack
In T3 Spec lines, BMW Spec 9X, change as follows: Car: "BMW Spec 9X BMW Spec E9X" Notes: "Must conform to all SpecE9X rules Version 2.10. Spec E9X spec tire permitted or any DOT permitted up to 225 255 permitted. No other touring allowances permitted. Engines may not be modified unless specified in the Spec E46 rules and must conform to touring tech procedures. Driver must possess a current copy of the rules. Dyno results do not ensure engine compliance. THIS SPEC LINE DOES NOT QUALIFY FOR SCCA RUNOFFS COMPETITION UNTIL IT HAS BEEN REPRESENTED IN 3 SCCA SUPER TOUR EVENTS."
fasterT3 SpecE46 permitted tire width increases from 225 to 245.
As printed in Fastrack
In T3 Spec Lines, BMW SpecE46, change Notes as follows: "Must conform to all SpecE46 rules Version 3.0. SpecE46 spec tire permitted or any DOT permitted up to 225 245 permitted. No other touring allowances permitted. Engines may not be modified unless specified in the Spec E46 rules and must conform to touring tech procedures. Driver must possess a current copy of the rules. Dyno results do not ensure engine compliance. SE46 HP limit does not apply."
Alternate Placement of Fuse Panel and Electronics Request
wordingT2, T3, T4 cars may relocate under-dash electronics and fuse boxes for access after roll cage installation.
As printed in Fastrack
In GCR, Section 9.1.9.2.D.9.d, add the following: "8. Under-dash electronics including computers, modules and fuse boxes may be relocated so they can be easily accessed after roll cage installation."
suspension & brakesT4 Performance now permits 1-piece alternative rotors matching spec line sizes; alternate brake kits allowed same.
As printed in Fastrack
In GCR, Section 9.1.9.2.D.6.a.6., change as follows: "In T2-Performance alternative rotors, including 2 piece rotors are permitted. Rotors must be within 5% of OE diameter or a maximum diameter of 360mm. In T3- Performance alternative rotors, including 2 piece rotors are permitted with a maximum diameter of 360mm. T4- Performance alternative 1-piece rotors are permitted but rotors must meet the sizes listed in the spec line. Spec lines showing alternate brake kits are also permitted to use 1-piece performance alternative rotors of the same size."
unclearT3 Ford Mustang EcoBoost loses optional 2-piece 355mm Brembo rotor brake kit option with 50 lb penalty.
As printed in Fastrack
In T3 Spec Lines, Ford Mustang EcoBoost (2015-), change Notes as follows: ", or optional 2-piece rotor 355mm max Brembo brake kit #M-2300-S allowed with +50lb penalty."
wordingT3 and T4 Mazda MX-5 Miata models add approved gear kit PT#-0000-02-6100 to notes.
As printed in Fastrack
In T4 Spec Lines, Mazda MX5 Miata/Club/ RF (19-24), add to Notes the following: "Gear kit Kit PT#- 0000-02-6100." In T4 Spec Lines, Mazda MX-5 Miata/Club (16-18), add to Notes the following: "Gear kit Kit PT#- 0000-02-6100." In T3 Spec Lines, Mazda MX-5 Miata (16-18), add to Notes the following: "Gear kit Kit PT#- 0000-02-6100." In T3 Spec Lines, Mazda MX-5 Global Cup Miata (2016-2021) ND1, ND, add to Notes the following: "Gear kit Kit PT#- 0000-02-6100."
wordingT4 Mazda MX-5 Miata/Club/RF (19-24) and (16-18) remove discontinued hardtop part #0000-07-5901; T3 MX-5 Miata (16-18) and Global Cup ND (16-21) same.
As printed in Fastrack
In T4 Spec Lines, Mazda MX5 Miata/Club/ RF (19-24), change Notes as follows: "Factory bolt-in roll bar/ cross member may be removed to facilitate roll cage installation. The following item(s) must remain stock: transmission differential unless specified below. Retractable hardtop option permitted but must be disabled from moving action and positively fastened. Any OEM or aftermarket hardtop is permitted that retains the OEM roof silhouette, including Mazda hardtop part #0000-07-5902-ND and part #0000-07-5901 (discontinued DG Motorsports). 29mm (f) 16mm (r) sway bars allowed. 3rd and 4th gear may be replaced with the following parts- (0000-02-5803-02, 0000-02-5803-01, 0000-02-5804-02, 0000-02-5804-01). Suspension package permitted with a 100 lbs. weight increase that includes the following parts: front springs #0000-04-9700-08, springs up to 500lb front and 300lb rear allowed. Mazda tower brace 0000-04-5626 allowed. Mazda header
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0000-06-5410 allowed." In T4 Spec Lines, Mazda MX-5 Miata/Club (16-18), change Notes as follows: "Factory bolt-in roll bar/ cross member may be removed to facilitate roll cage installation. Retractable hardtop option permitted but must be disabled from moving action and positively fastened. Any OEM or aftermarket hardtop is permitted that retains the OEM roof silhouette, including Mazda hardtop part #0000-07-5902-ND and part #0000-07-5901 (discontinued DG Motorsports). 29mm (f) 16mm (r) sway bars allowed. Up to 500lb front and 300lb rear springs allowed. Mazda Motorsports Header part #0000-06-5410 allowed. Mazda tower brace 0000-04-5626 allowed. 3rd and 4th gear may be replaced with the following parts- (0000-02-5803-02, 0000-02-5803-01, 0000-02-5804-02, 0000-02-5." In T3 Spec Lines, Mazda MX-5 Miata (16-18), change Notes as follows: "Factory bolt-in roll bar/ cross member may be removed to facilitate roll cage installation. Header permitted. Cold air intake permitted. Front strut brace permitted. Front and rear sway bars permitted up to 35mm, Springs 800 front and 800 Rear max permitted. Any OEM or aftermarket hardtop permitted that retains the OEM roof silhouette including Mazda hardtop part #0000-07-5902- ND and part #0000-07-5901 (discontinued DG Motorsports top). If a hardtop is used, latches shall be replaced with positive fasteners. Retractable hardtop option permitted but must be disabled from moving action and positively fastened. In T3 Spec Lines, Mazda MX-5 Global Cup Miata (2016-2021) ND1, ND, change Notes as follows: "Shoulder harness installation must conform to FIA mounting specifications that are approved for this vehicle per section 6.2 FIA article 253, safety equipment. Must meet all ND2 MX-5 Global Cup rules. Any OEM or aftermarket hardtop is permitted that retains the OEM roof silhouette, including Mazda hardtop Mazda hardtop part #0000-07-5902-ND and #0000-07-5902-ND part #0000- 07-5901 (discontinued DG Motorsports). If a hardtop is used, latches shall be replaced with positive fasteners. OBD2 requirement does not apply. Ballast box may be removed. ND2s with sequential gearbox allowed +100 lbs.
unclearBMW Spec E46 in T3 updates to SpecE46 rules Version 3.0.
As printed in Fastrack
In T3 Spec Lines, BMW Spec E46, change Notes as follows: "Must conform to all SpecE46 rules Version 2.10. Version 1.1 dated Jan. 6, 2025. Version 3.0."
unclearT3 BMW Spec E46 rules updated to Version 3.0 from Version 1.1.
As printed in Fastrack
In T3 Spec Lines, BMW Spec E46, change Notes as follows: "Must conform to all SpecE46 rules Version 2.10. Version 1.1 dated Jan. 6, 2025. Version 3.0."
In T2, Effective 1/1/2025, delete for following Spec Lines in their entirety: "Acura TL SHAWD (10-13) Audi S4 (12-14) Audi S5 (13-14) Audi TT RS (2018-) Cadillac ATS-V (16-17) Cadillac CTS-V (06-07) Chevrolet Camaro SS (98-02)
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Honda Civic Type-R (2017-) Saturn Sky / Convertible (07-09)" In T3, Effective 1/1/2025, delete for following Spec Lines in their entirety: "Audi TTS Coupe (10-11) Cadillac ATS (2015) Chevrolet Cobalt (05-07) Dodge SRT-4 (03-05) Ford Fiesta ST (2014-) Hyundai Genesis Coupe (2010-) Hyundai Veloster Turbo (18-21) Mini Cooper S (2016-) Toyota Camry (11-15)" In T4, Effective 1/1/2025, delete for following Spec Lines in their entirety: "Acura Integra GS-R VTEC (3 or 4 door) (94-01) Audi A4 V-6 (96-01) / Volkswagen Passat 2.8 V6 (96-05) Chevrolet Cobalt SS, Sport Coupe (06-10) Chevrolet Sonic RS (2011-) Chrysler/Dodge Neon ACR SOHC (4 door) (01-02) Dodge Dart (14-15) Dodge/Plymouth Neon ACR SOHC/DOHC (2/4 door) (95-99) Fiat 500 Abarth (12-14) Ford Focus SVT (02.5-04) Ford Focus ZX4 ST (05-06) Ford Focus (08-11) Ford Mustang V-6 (01-04) Honda Accord LX & EX (03-07) Honda Accord LX-S/EX/EX-L (08-12) Honda Civic Coupe Si (99-00) Honda Civic SI (02-03) Hyundai Elantra GLS (11-12) Hyundai Tiburon V-6 (03-08) Hyundai Veloster Turbo/ R-Spec (14-15) Kia Forte Koup and Sedan LX/EX (10-13) Kia Forte Koup and Sedan SX (10-13 Kia Forte Koup (14-15) Mazda Protégé ES (2000) Mazda Protégé 5 (02-03) Mazda6 s (03-07) Mitsubishi Eclipse GT (00-05) Nissan Sentra SER (02-03) Pontiac Firebird V-6 (96-02) Scion tC (03-07) Subaru Impreza (non-turbo) (04-06) Toyota Celica GT (00-05) Toyota Celica GTS/GT (00-05) Volkswagen Golf TDI (2010) Volkswagen Passat (12-14) Volkswgen Passat TDI (12-14) Volkswgen Passat 1.8T (2014-)"
Request to Move Spec Mustang to Touring 3 (from T2)
fasterT3 Ford Mustang V6 (11-14) and (15-17) now permit cold air intake.
As printed in Fastrack
In T3 Spec Lines, Ford Mustang V6 (11-14), add to Notes the following: "Cold air intake permitted." In T3 Spec Lines, Ford Mustang V6 (15-17), add to Notes the following: "Cold air intake permitted."
wordingT3 VW Golf R (12-13 and 15-18) 36mm TIR placement now allows OEM turbo inlet, removing 60mm distance limit from impeller.
As printed in Fastrack
In T3 Spec Lines, Volkswagen Golf R (12-13), change Restrictor Required as follows: "36mm TIR max 60mm from impeller TIR may be placed in the OEM turbo inlet as long as the restriction is entirely within the leading edge of the housing." In T3 Spec Lines, Volkswagen Golf R (15-18), change Restrictor Required as follows: "36mm TIR max 60mm from impeller TIR may be placed in the OEM turbo inlet as long as the restriction is entirely within the leading edge of the housing."
Redundant Verbiage Regarding Mustang Spec Lines for Driveshaft
wordingT2 and T3 Mustang spec lines remove redundant driveshaft alternate/aluminum allowance wording.
As printed in Fastrack
In T2 Spec Lines, change Notes as follows: Ford Mustang V6 (11-14): "Alternate driveshaft is allowed." Ford Mustang Boss 302 (12-13): "Alternate driveshaft is allowed." Ford Mustang GT 5.0L (11-14): "Alternate driveshaft is allowed." Ford Mustang GT 5.0L (15-17): "Alternate driveshaft is allowed." Ford Mustang GT 5.0L (2018-): "Alternate driveshaft is allowed. Springs up to 800#/in front and rear permitted. Alternate metallic driveshaft permitted." Ford Mustang Coupe GT & Shelby GT 4.6L (05-10): "Alternate driveshaft is allowed."
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In T3 Spec Lines, change Notes as follows: Ford Mustang Coupe GT & Shelby GT 4.6L & Cal. Special (05-10): "Alternate driveshaft is allowed." Ford Mustang V6 (11-14): "Alternate driveshaft is allowed." Ford Mustang V6 (05-10): "An Aluminum driveshaft is allowed."
wordingT2, T3, T4 fuel cell installations may remove charcoal canisters, emissions valves, and sensors.
As printed in Fastrack
In GCR, Section 9.1.9.2.D.1.c. add the following: "5. Removal of ancillary fuel tank equipment charcoal canisters, emissions valves, and sensors allowed for OEM or aftermarket fuel cell installations."
wordingT2, T3, T4 brake component wording clarified: 2-piece rotors allowed in T2 within 5% OE diameter, T3 within 2% OEM diameter.
As printed in Fastrack
In GCR, Section, 9.1.9.2.D.6. Brakes, change as follows: "a. Components 1. The make and material of brake pads and linings may be changed. 2. Brake fluid may be substituted with any brake fluid. 3. Brake rotor dust shields may be removed or replaced to accommodate brake ducts. 4. Flexible rubber brake lines may be replaced with Teflon lined, metal braided hoses. 5. Any brake ducts are permitted, but they must serve no other purpose. Fender liners may be modified solely for routing and attachment of brake ducts. Duct intake openings may be created by the opening of 2 sections up to 14.5 square inches each in
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the front fascia. The stock headlamp location is not permitted for brake ducting. Two alternative duct openings may be created by the removal of the fog lights or 2 sections up to 14.5 square inches each of stock false grills originally located in the front fascia. 6. Stock replacement brake rotors may be obtained from sources other than the manufacturer provided they are the exact equivalent of the stock rotors. In T2 only - 2-piece rotors with ferrous metal rotor disks and aluminum hats are allowed, must be within 5% of OE diameter. In T3 only - 2-piece front rotors with ferrous metal rotor disks and aluminum hats are allowed, must be within 2% of OEM diameter. Drilled and slotted rotors are permitted. 7. Parking brakes, mechanisms, and actuating components may be removed. 8. Brake vacuum reservoirs sized 0.50 gallons or smaller are permitted. The port or fitting at the vacuum source may not be modified, enlarged or relocated. The vacuum reservoir and brake booster must be a closed system."
wordingT2, T3, T4 fuel cell cars may remove charcoal canisters, emissions valves, and sensors.
As printed in Fastrack
In GCR, Section, 9.1.9.2.D.1.c., add the following: "5. Removal of ancillary fuel tank equipment; charcoal canisters, emissions valves, and sensors allowed for OEM or aftermarket fuel cell installations."
Allow Spec MX5 upgrade kit for 2009-11 RX8 S2 Transmision
wordingT3 and T4 Mazda RX-8 and MX-5 permit transmission kit #0000-02-5700.
As printed in Fastrack
In T4 Spec Lines, add the following to Notes: Mazda RX-8 Base/R3/Sport/ GT (04-12): "Transmission kit # 0000-02-5700 permitted. Mazda MX-5 / Club Model (06-15): "Transmission kit # 0000-02-5700 permitted." In T3 Spec Lines, add the following to Notes: Mazda MX-5 / Club Model (06-15): "Transmission kit # 0000-02-5700 permitted." Mazda RX-8 Base/R3/Sport/ GT (04-12): "Transmission kit # 0000-02-5700 permitted."
wordingT4 BMW 320i 14-15 Spec Line expires 12/31/24 removed; Turner Motorsports intercooler #024703TMS02 allowed.
As printed in Fastrack
In T4 Spec Lines, BMW 320i (14-15), change Notes as follows: "**This Spec line will expire 12/31/24, Please submit to appeal** Turner Motorsports intercooler #024703TMS02 allowed."
Classification for a 2005 Cadillac CTS 3.6 liter 6 speed manual
fasterT3 Subaru WRX STI 03-07 drops 100 lbs to 3200; Legacy GT/Spec B 05-09 drops 150 lbs to 3200.
As printed in Fastrack
In T3 Spec Lines, Subaru WRX STI (03-07), change Weight as follows: "3300 3200" In T3 Spec Lines, Subaru Legacy GT/Spec B (05-09), change Weight as follows: "3350 3200"
fasterT3 Honda Civic Si (2017-2021) restrictor removed, weight to 2950 lbs, Runoffs eligibility requires 3 Super Tour events.
As printed in Fastrack
In T3 Spec Lines, Honda Civic Si (2017-) with 2900 weight, change as follows: Model: "Honda Civic Si (2017-2021)" Restrictor: "36mm TIR" Add to Notes: "**This car is not eligible for the Runoffs until it has competed in 3 Super Tour events.**" In T3 Spec Lines, Honda Civic Si (2017-), change as follows: Model: "Honda Civic Si (2017-2021)" Restrictor: "36mm TIR" Weight (lbs): "30752950"
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Add to Notes: "**This car is not eligible for the Runoffs until it has competed in 3 Super Tour events.**"
wordingT3 Subaru STI (15-20) and WRX STI (03-07) permitted to use OEM spec block #IAG-ENG-S550 and head studs.
As printed in Fastrack
In T3 Spec Lines, Subaru STI (15-20), add to Notes the following: "OEM spec block permitted # IAG-ENG-S550, Head studs permitted." In T3 Spec Lines, Subaru WRX STI (03-07), add to Notes the following: "OEM spec block permitted # IAG-ENG-S550, Head studs permitted."
unclearFord Mustang GT 5.0L and V6 now permit Track/Performance Package parts in T2 and T3.
As printed in Fastrack
In T2 Spec Lines, Ford Mustang GT 5.0L (15-17), add to Notes as follows: "Track/Performance Package parts permitted." In T2 Spec Lines, Ford Mustang GT 5.0L (2018-), add to Notes as follows: "Track/Performance Package parts permitted." In T3 Spec Lines, Ford Mustang V6 (15-17), change Notes as follows: "Track/Performance package allowed."
fasterT2-T4 Ford Mustangs: remove 25 lbs penalty for non-OEM driveshaft, clarify alternate driveshaft allowances.
As printed in Fastrack
In GCR Section 9.1.9.2.D.4.b.6., remove as follows: "If non-OEM driveshaft is used, add 25 lbs." In T2 Spec Lines, Ford Mustang V6 (11-14), change Notes as follows: "Driveshaft from Alternate metallic driveshaft is allowed." In T2 Spec Lines, Ford Mustang Boss 302 (12-13), change Notes as follows: "Alternate metallic driveshaft is allowed." In T2 Spec Lines, Ford Mustang GT 5.0L (11-14)ki, change Notes as follows: "Alternate metallic driveshaft is allowed."
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In T2 Spec Lines, Ford Mustang GT 5.0L (15-17), change Notes as follows: "Alternate metallic driveshaft is allowed." In T2 Spec Lines, Ford Mustang GT 5.0L (2018-), change Notes as follows: "Alternate metallic driveshaft is allowed." In T2 Spec Lines, Ford Mustang Coupe GT & Shelby GT 4.6L (05-10), change Notes as follows: 'An Aluminum driveshaft is allowed." "Alternate metallic driveshaft is allowed." In T3 Spec Lines, Ford Mustang Coupe GT & Shelby GT 4.6L & Cal. Special (05-10), change Notes as follows: "An Aluminum driveshaft is allowed." "Alternate metallic driveshaft is allowed." In T3 Spec Lines, Ford Mustang V6 (11-14), change Notes as follows: "Driveshaft from Alternate metallic driveshaft is allowed."
cars addedT3 BMW Z4 3.0si expands to include 3.0i Roadster and Coupe (07-08); hardtop permitted with positive fasteners.
As printed in Fastrack
In T3 Spec Lines, BMW Z4 3.0si, & Coupe (07-08) change Model and add to Notes as follows: "BMW Z4 3.0si, 3.0i, Roadster & Coupe (07-08)" Notes: "Any OEM or aftermarket hardtop permitted that retains the OEM roof silhouette (if a hardtop is used, latches shall be replaced with positive fasteners)."
unclearT3 and T4 Mazda RX-8 may remove or disable factory oil injection system.
As printed in Fastrack
In T3 Spec Lines, Mazda RX-8 Base/R3/Sport/ GT (04-12), add to Notes as follows: "OEM oil injection system may be removed or disabled." In T4 Spec Lines, Mazda RX-8 Base/R3/Sport/ GT (04-12), add to Notes as follows: "OEM oil injection system may be removed or disabled."
slowerT2, T3, T4 driveshafts may use alternative materials or one-piece units; non-OEM adds 25 lbs.
As printed in Fastrack
In GCR Section 9.1.9.2.D.4.b., add the following: "6. T2-T3- Driveshafts may be replaced with alternative materials ie. carbon fiber, aluminum, steel. Two-piece driveshafts may be replaced with one-piece units. If non-OEM driveshaft is used, add 25 lbs."
wordingAudi S4 00-02 in T3 must compete in 3 Super Tour events before Runoffs eligibility.
As printed in Fastrack
In T3 Spec Lines, Audi S4 (00-02), add to Notes as follows: "**This car is not eligible for the Runoffs until it has competed in 3 Super Tour events.**"
fasterT3 Spec Z 350Z rear wheel width increases to 10 inches; HR Engine restrictors change from 42mm to 44mm.
As printed in Fastrack
In T3 Spec Lines, Nissan 350Z Track/ Touring/ Standard/ Nismo Spec Z (03-08), change as follows: Max Wheel Size (inch): "18 x 9 (F) 18 x 10 (R)" Notes: "Nissan Motorsports: Shock Front left P/N E6110-SZ350 & Front right E6111- SZ350 & rear E6210-SZ350, springs front P/N 54010-SZ350 & rear 55020- SZ350, F&R 5600S-SZ350, Front sway bar max 37mm. Rear sway bar max 25mm, Bushings P/N (54541, 54560, 55045, 55148, 55149, 55152, 55153, 55158, 56218) - RRZ30 allowed. Nismo flywheel permitted. SPC Control Arms 72125 and 72123 are allowed. HR Engine: Two 42mm flat plate restrictors required. Zspeed and Z1 alternative clutch slave permitted. Must conform to all SpecZ 2018 Edition rules. No other touring allowances beyond 2018 SpecZ edition rules or allowances listed here. Nissan brake part numbers NISMO Race Front Caliper Kit 41001-FR350, NISMO Front Rotor-RIGHT 40206-
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SZ350, NISMO Front Rotor-LEFT 40207-SZ350 permitted. 44011-RC350 rear caliper kit permitted, 43206-SZ350 Right rotor permitted, 43207-SZ350 Left rotor permitted. Car must conform to the Official 2024 Spec Z Rules. HR Engine: Two 44mm flat plate restrictors required. Tires must conform to Spec Z rules. Competitor must be able to provide a copy of the current rules."
suspension & brakesT3 Nissan 350Z and 370Z now allow brake booster vacuum regulator, must not be in-car adjustable.
As printed in Fastrack
In T3 Spec Lines, Nissan 350Z Track/ Touring/ Standard/ Nismo (03-08), add to Notes as follows: "Brake booster vacuum regulator allowed, cannot be in-car adjustable." In T3 Spec Lines, Nissan 370Z, incl. Nismo (2009-2022), add to Notes the following: "Brake booster vacuum regulator allowed, cannot be in-car adjustable."
fasterT3 Ford Mustang 4.6L restrictor holes increased from 40 mm to 45 mm.
As printed in Fastrack
In T3 Spec Lines, Ford Mustang Coupe GT & Shelby GT 4.6L & Cal. Special (05-10), change Notes as follows: "A flat plate restrictor with two 40 mm 45mm holes required directly behind throttle body."
Appeal for Retention of T3 Mazda RX-8 Spec Line (Letter #35378)
In GCR, Section 9.1.9.2.D.1.g.3., change as follows: "Batteries may be replaced provided the replacement is capable of starting the car. Batteries may not be relocated unless noted on the spec line. Batteries must be adequately secured. Battery labeling must conform to 9.3.35.D. with those of an alternate manufacturer, provided they are of similar amp-hour capacity, size and within 10% of OEM weight."
Open Strut Tower Brace Options for Ford Mustang V6 (11-14)
cars addedT4 now permits C-Spec cars to compete alongside B-Spec cars.
As printed in Fastrack
In GCR, Section 9.1.9.2., change as follows: "Touring car eligibility: Cars are eligible for the class they are listed with a specification line and with the specific allowances permitted. In addition, T2-T4 cars may race one class up in touring classes above their specification line class as long as they are a legal T2-T4 car and conform to their specification line allowances as classified. Cars conforming to C-Spec rules are permitted to compete in Touring 4."
wordingT2-T4 spec lines for 46 cars expire 12/31/24; appeal required to continue.
As printed in Fastrack
In T2-T4 Spec Lines, add **This Spec line will expire 12/31/24, Please submit to appeal** to Notes to the following Spec Lines: T2: Acura TL SHAWD (10-13) Audi S4 (12-14) Audi S5 (13-14) Audi TT RS (2018-) Cadillac ATS-V (16-17)
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Cadillac CTS-V (06-07) Chevrolet Camaro SS (98-02) Honda Civic (2017-) Saturn Sky / Convertible (07-09) Subaru Impreza WRX STi (03-07) Subaru Impreza WRX STi (08-11) T3: Audi S4 (10-11) Audi S4 (12-14) Audi TTS Coupe (10-11) Cadillac ATS (2015) Chevrolet Cobalt (05-07) Dodge SRT-4 (03-05) Ford Fiesta ST (2014-) Hyundai Genesis Coupe (2010-) Hyundai Veloster Turbo (18-21) Mazda RX-8 Base/R3/Sport/ GT (04-12) Mini Cooper S (2016-) Subaru WRX (02-05) Toyota Camry (11-15) T4: Acura Integra GS-R VTEC (3 or 4 door) (94-01) Audi A4 V-6 (96-01) / Volkswagen Passat 2.8 V6 (96-05) BMW 320i (14-15) Chevrolet Cobalt SS, Sport Coupe (06-10) Chevrolet Sonic RS (2011-) Chrysler/Dodge Neon ACR SOHC (4 door) (01-02) Dodge Dart (14-15) Dodge/Plymouth Neon ACR SOHC/DOHC (2/4 door) (95-99) Fiat 500 Abarth (12-14) Ford Focus SVT (02-04) Ford Focus ZX4 ST (05-06) Ford Focus (08-11) Ford Mustang V-6 (01-04) Honda Accord LX & EX (03-07) Honda Accord LX-S/EX/EX-L (08-12) Honda Civic Coupe Si (99-00) Honda Civic SI (02-03) Hyundai Elantra GLS (11-12) Hyundai Tiburon V-6 (03-08) Hyundai Veloster Turbo/ R-Spec (14-15) Kia Forte Koup and Sedan LX/EX (10-13) Kia Forte Koup and Sedan SX (10-13) Kia Forte Koup (14-15) Mazda Protégé ES (2000) Mazda Protégé 5 (02-03)
slowerT3 Nissan 350Z DE motor loses 75 lbs to 3125; HR motor gains 47mm restrictors, up from 44mm.
As printed in Fastrack
In T3 Spec Lines, Nissan 350ZTrack/ Touring/Standard/Nismo(03-08), change as follows: Weight: "DE Motor: 3200 3125 HR Motor: 3275" Notes: "HR Engine: Two 44mm 47 mm flat plate restrictors required. DE engine: Cold air intake permitted."
wordingT3 2010 Mustang GT 4.6 now allows 2013-14 GT style front/rear fascia, hood, and associated assemblies.
As printed in Fastrack
In T3 Spec Lines, Ford Mustang Coupe GT & Shelby GT 4.6L & Cal. Special (05-10), add to Notes the following: "2010 models may update the front and rear fascia, hood and associated assemblies to the 2013-14 GT style."
fasterT3 BMW SpecE46 minimum weight drops 50 lbs to 2850.
As printed in Fastrack
In T3 Spec Lines, BMW SpecE46, change as follows: Min Weight: "2900 2850" Notes: "Must conform to all SpecE46 rules Version 2.10. SpecE46 spec tire permitted or any DOT permitted up to 225 permitted. No other touring allowances permitted. Engines may not be modified unless specified in the Spec E46 rules and must conform to touring tech procedures. Driver must possess a current copy of the rules. Dyno results do not ensure engine compliance. SE46 HP limit does not apply."
slowerT3 Subaru STI (15-20) minimum weight increases 100 lbs to 3450; all three STI variants get larger turbo inlet restrictors.
As printed in Fastrack
In T3 Spec Lines, Subaru WRX STI (03-07), change Notes as follows: "Killer B intake pipe #EJTI and coupler permitted. 37mm 39mm TIR required." In T3 Spec Lines, Subaru STI (15-20), change as follows: Min Weight: "3350 3450" Notes: "Killer B intake pipe #EJTI and coupler permitted. 37mm 40mm TIR required." In T3 Spec Lines, Subaru Legacy GT/Spec B (05-09), change Notes as follows: "Killer B intake pipe #EJTI and coupler permitted. 37mm 39mm Turbo inlet restrictor required."
fasterT3 Porsche Cayman (09-12) and (13-16) gear and final drive ratios adjusted; 09-12 6-SPD final drive 3.88 to 3.875, PDK 3.909 to 3.250; 13-16 6-SPD final drive 3.89 unchanged, PDK 3.91 to 3.250.
As printed in Fastrack
In T3 Spec Lines, change gear ratios and final drive ratios as follows:
A specification table follows in the original; it is not shown here.
2006-10 Volkswagen GTI - Weight Reduction request and KO4 Turbo
wordingT3 VW Golf GTI and Golf R TIR location clarified to maximum 60mm from impeller.
As printed in Fastrack
In T3 Spec Lines, Volkswagen GTI (2013), change Notes as follows: "Rear sway bar max 42 mm (body and suspension mounting same as OEM), Any spring up to a maximum spring rate of 800 pounds may be used. Turbo Inlet Restrictor 36mm required max 60mm from impeller. R32 model brake package allowed. Verkline WAS-048 camber arms permitted." In T3 Spec Lines, Volkswagen Golf R (15-16) change Notes as follows: "Max spring rate 800 F&R, Max swaybar 38mm F, 42mm R. 36mm TIR required max 60mm from impeller."
wordingT3 Mazda RX-8 removes transmission/final drive pairing requirement; T4 removes same requirement, adds Mazdaspeed radiator and coil spring kit.
As printed in Fastrack
In T3 Spec Lines, Mazda RX-8 Base/R3/Sport/ GT (04-12), change notes as follows: "Use of 2009 R3 transmission is permitted with alternate gear ratios as listed. R3 transmission must be paired with the listed alternate final drive. Front sway bar permitted 32mm MAX rear sway bar 19 MAX, Front springs max 750, 500 rear. Cold air intake permitted. Header permitted. Aftermarket flywheel and single disc clutch permitted with no weight penalty." In T4 Spec Lines, Mazda RX-8 Base/R3/Sport/ GT (04-12), change notes as follows: "Mazdaspeed radiator #0000-01-8501 allowed. Use of 2009 R3 transmission is permitted with alternate gear ratios as listed. R3 transmission must be paired with the listed alternate final drive. Mazdaspeed coil spring kit #QSEA-34-01Z allowed. 60mm flat plate restrictor required. OE Rear spoiler allowed #F151-V4-920F. OE front air dam allowed #F151-V4-900f-BB. Springs Allowed:
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(F) Mazda Motorsports- 0000- 04-9700-08 or Eibach- 0800.250.0700 (R) Mazda Motorsports- 0000-04-9400-07 or Eibach 0700.250.0400, and helper 0000-04-9926 allowed. Alternate sway bars allowed max 32mm (f) 19mm (r)."
fasterT3 BMW 320i (14-15) gains aftermarket intercooler permission; T4 loses it.
As printed in Fastrack
In T3 Spec Lines, BMW 320i (14-15), add to Notes the following: "Aftermarket intercooler permitted." In T4 Spec Lines, BMW 320i (14-15), remove from Notes the following: "Aftermarket intercooler permitted."
wordingT3 Pontiac Solstice GXP minimum ride height set to 3 inches.
As printed in Fastrack
In T2 Spec Lines, Pontiac Solstice GXP Coupe / Convertible (07-09), add to Notes the following: "Minimum ride height is 3 inches." In T3 Spec Lines, Pontiac Solstice GXP Coupe / Convertible (07-09), add to Notes the following: "Minimum ride height is 3 inches."
fasterT3 Camaro V6 1LE and LT-I4 Turbo 1LE max wheel diameter increases from 18 to 20 inches.
As printed in Fastrack
In T3 Spec Lines, Chevrolet Camaro V6 1LE (2016-), change Max. Wheel Size as follows: "18 x 10 20 x 10" In T3 Spec Lines, Chevrolet Camaro LT-I4 Turbo 1LE (2016-), change Max. Wheel Size as follows: "18 x 10 20 x 10"
wordingT3 Porsche Spec Boxster tire rule updates to current SPB rules or any 245 DOT tire.
As printed in Fastrack
In T3 Spec Lines, Porsche Spec Boxster, change Notes as follows: "Must conform to all SPB rules in the PCA rulebook. Each competitor shall have available definitive current documentation of the PCA rules. Tires must meet 2016 Current SPB rules or any 245 DOT tire permitted. No other touring allowances permitted."
OEM VW Steering Spindle Replacements 06-10 VW GTI and Jetta
aeroT2/T3 Mustang GT 5.0L and V6 (11-14) may remove upper grille fog lights, replace with mesh or screen.
As printed in Fastrack
In T2 Spec Lines, Ford Mustang GT 5.0L (11-14), add to Notes the following: "Upper grille fog lights may be removed and replaced with mesh or screen." In T2 Spec Lines, Ford Mustang V6 (11-14), add to Notes the following: "Upper grille fog lights may be removed and replaced with mesh or screen." In T3 Spec Lines, Ford Mustang V6 (11-14), add to Notes the following: "Upper grille fog lights may be removed and replaced with mesh or screen."
cars addedHyundai Veloster Turbo 2018-2021 classified in T3 at 3050 lbs with 1584cc engine, 245 max tire size, specific suspension and brake modifications allowed.
As printed in Fastrack
In T3 Spec Lines, classify Hyundai Veloster Turbo (18-21) as follows:
A specification table follows in the original; it is not shown here.
Adjustable Rear Camber Arms for VW (All Generations)
wordingT3 Volkswagen GTI and Jetta GLI now permit Verkline WAS-048 adjustable rear camber arms.
As printed in Fastrack
In T3 Spec Lines, Volkswagen GTI, Jetta GLI (06-10), add to Notes as follows: "Verkline WAS-048 camber arms permitted." In T3 Spec Lines, Volkswagen GTI (2013), add to Notes as follows: "Verkline WAS-048 camber arms permitted." In T3 Spec Lines, Volkswagen GTI (14.5-17), add to Notes as follows: "Verkline WAS-048 camber arms permitted."
suspension & brakesT3 Nissan 350Z and 370Z remove SPC Control Arms 72130, 72125, 72123; permit performance alternative front upper control arms.
As printed in Fastrack
In T3 Spec Lines, Nissan 350Z Track/ Touring/ Standard/ Nismo (03-08), change Notes as follows: "The following are allowed: Track option Aero package, Rear diff cover Nismo part #99996-35TDK or, alternatively parts #383510C021, OEM Breather 38356-EV00A, OEM Stud 38354-0C00A, Nissan Motorsports. Nissan heavy duty spring kit part #99996-65Z3OUS, Front sway bar max 37mm. Rear sway bar max 25mm. Performance alternative front upper control arms permitted. SPC Control Arms 72130, 72125, or 72123 are allowed. Springs up to 700 lbs./in. allowed front and rear. HR Engine: Two 42mm flat plate restrictors required. Rear spring relocation to shock permitted. Zspeed and Z1 alternative clutch slave permitted. Nissan brake part numbers NISMO Race Front Caliper Kit 41001-FR350, NISMO Front Rotor-RIGHT 40206-SZ350, NISMO Front RotorLEFT 40207-SZ350 permitted. 44011-RC350 rear caliper kit permitted, 43206- SZ350 Right rotor permitted,
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43207-SZ350 Left rotor permitted." In T3 Spec Lines, Nissan 370Z (09-16) / 370Z NISMO Edition (09-13), change Notes as follows: "5300S-SS370 T-2 spring kit allowed; 54600-SS370 T-2 front and rear sway bar kit allowed. Sports Package is allowed. Two 42mm flat plate restrictors required. Performance alternative front upper control arms permitted. SPC Control Arms 72130, 72125, or 72123 are allowed. Max spring rate of 700 lbs/in front and rear. Rear spring relocation to shock permitted. Zspeed and Z1 alternative clutch slave permitted. Any swaybar up to 37mm front and up to 30mm rear allowed. 44011-RC350 rear caliper kit permitted, 43206-SZ350 Right rotor permitted, 43207-SZ350 Left rotor permitted."
cars addedT5 class added as regional-only; T5 tyres maximum width 225, minimum aspect ratio 45.
As printed in Fastrack
In GCR, CARS AND EQUIPMENT, section 9.1.9. TOURING CATEGORY CLASSES: add the following: "Touring 5 (T5)" In GCR, Section 9.1.9.2. Touring (T2-T5) Category, change as follows: "Touring car eligibility: Cars are eligible for the class they are listed with a specification line and with the specific allowances permitted. In addition T2-T5 cars may race one class up in touring classes above their specification line class as long as they are a legal T2-T4 5 car and conform to their specification line allowances as classified. T5 is a Regional only class." In GCR, Section 9.1.9.2.D.1.i.5., change as follows: "T2-T4 5 only:"
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In GCR, Section 9.1.9.2.D.7.b., add as follows: "T5 has a maximum tire size of 225/45. T5 has a maximum tire width of 225 and a minimum aspect ratio of 45."
suspension & brakesT2-T5 Touring front and rear suspension maximum negative camber changed to 3.5 degrees.
As printed in Fastrack
In GCR Touring (T2-T5) Category Specifications, Section 9.1.9.2.D.1.e.1.a, change as follows: "A maximum of 3.5 degrees of negative ch amber is allowed on front and rear suspensions."
wordingT3 Solstice GXP intercooler options expanded: Hahn HIC-1150 or Dejon FIC-SSA replaced with Performance alternative.
As printed in Fastrack
In T3 Spec Lines, Pontiac Solstice GXP Coupe / Convertible (07-09), change Notes as follows: "Detachable hardtop GM part #PCS-0664 may be installed (if a hardtop is used, latches shall be replaced with positive fasteners and convertible top shall be removed). Suspension option ZOK and Rear Spoiler (D52) allowed. Brake calipers and rotors from Chevrolet Cobalt SS (08-09) permitted. Any aftermarket top allowed, if material, size, shape and weight are the same as the factory top. 36mm TIR required. Hahn HIC-1150 or Dejon FIC-SSA Performance alternative (see Appendix F) Intercooler allowed. Maximum spring rate 800 lb/inch for coil over type spring permitted. Any aftermarket 4-piston caliper allowed. (Changes effective January 01, 2023)"
slowerT3 Subaru BRZ 2022- minimum weight up to 2975 lbs; spring rate to 1000 F/R, brake parts allowed without penalty.
As printed in Fastrack
In T3 Spec Lines, Subaru BRZ (2022-), change as follows: Weight: "2750 2975" Notes: "Any spring up to 750 1000 F/R permitted. Front strut tower brace permitted. SPC or SPL rear lower control arms permitted. Cold air intake allowed. Subaru brake parts 26292CA070 & 26292CA060 allowed with 100 lb penalty."
wordingT3 Honda S2000 hardtop clarified: OEM, Mugen P/N 0000-04-2312, or aftermarket permitted if OEM roof silhouette retained.
As printed in Fastrack
In T3 Spec Lines, Honda S2000 (all) (00-09), add to Notes as follows: "Any OEM, Mugen P/N 0000-04-2312, or aftermarket hardtop permitted that retains the OEM roof silhouette. If a hardtop is used, latches shall be replaced with positive fasteners."
fasterT3 Subaru BRZ (2022-) and Toyota GR86 (2022-) permit 25mm front and 22mm rear sway bars, OEM trunk spoiler.
As printed in Fastrack
In T3 Spec Lines, Subaru BRZ (2022-), add to Notes as follows: "Any spring up to 750 F/R permitted. Front strut tower brace permitted. SPC rear lower control arms permitted. Cold air intake allowed. Subaru brake parts 26292CA070 & 26292CA060 allowed with 100 lb penalty. Sway bars permitted 25m (f) max, 22mm (r) Max. OEM Trunk Spoiler permitted- E7210CC000." In T3 Spec Lines, Toyota 86 (2022-), change as follows: Car: "Toyota GR86 (2022-)" Notes: "Any spring up to 750 F/R permitted. Front strut tower brace permitted. SPC rear lower control arms permitted. Cold air intake allowed. Toyota brake parts SU003- 07197 & SU003-07198 allowed with 100 lb penalty. Sway bars permitted 25m (f) max,
wordingT3 Honda Civic Si (2017-) spec clarified: wheels to 10" wide allowed with 50 lb. penalty, 1-piece rotor required.
As printed in Fastrack
In T3 Spec Lines, Honda Civic Si (2017-), change Notes as follows: "HPD CAT Delete pipe 18150-F23S-R6; HPD 4th Gear Set 23460-F23S-R6; HPD Differential 41100-F23S-R6; HPD RR Damper Mount 52670-F23S-A6; HPD RR Spring Adjuster 52691-F23S-A6; HPD Adjustable RR Upper Arm 52390-F23S-A6; HPD ABS Modulator 57100-F23S-R6; Alternate grill Cuztom Tuning FG-CIV16- V3-TR-BK allowed. Any sway bar front/rear up to 30mm allowed. Front springs up to 800lb allowed, rear springs up to 1000lb allowed. 36mm TIR required. Wheels up to 10” wide allowed with 50 lb. penalty. 1-piece rotor required." In T3 Spec Lines, Honda Civic Si (2017-), change Car as follows: "Honda Civic Si (2017-) (Changes effective 03/01/2022)"
suspension & brakesT2-T4 Touring cars with alternative springs may use performance top hats with spherical bearings on shocks and struts.
As printed in Fastrack
In TOURING (T2-T4) CATEGORY, GCR Section 9.1.9.2.D.5.b.2, add the following: "f. Cars with an alternative spring allowance are permitted to use performance alternative top hats on shocks and struts. These top hats are permitted to utilize spherical bearings."
wordingT3 Subaru BRZ and Toyota 86 (2022-) wheel size corrected to 18 x 8 in., gear ratios and final drive specified.
As printed in Fastrack
In T3 Spec Lines, Subaru BRZ (2022-), change as follows: Wheel Size (in.): "18 x 98" Gear Ratios: "Auto 3.54, 2.06, 1.41, 1.00, 0.71, 0.58 Manual 3.63, 2.19, 1.54, 1.21, 1.00, 0.77" Final Drive: "Auto 3.91 Manual 4.1" Notes: "Any spring up to 750 F/R permitted. Front strut tower brace permitted. SPC rear lower control arms permitted. Cold air intake allowed. Subaru brake parts 26292CA070 & 26292CA060 allowed with 100 lb penalty."
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In T3 Spec Lines, Toyota 86 (2022-), change as follows: Wheel Size (in.): "18 x 9 8" Gear Ratios: "Auto 3.54, 2.06, 1.41, 1.00, 0.71, 0.58 Manual 3.63, 2.19, 1.54, 1.21, 1.00, 0.77" Final Drive: "Auto 3.91 Manual 4.1" Notes: "Any spring up to 750 F/R permitted. Front strut tower brace permitted. SPC rear lower control arms permitted. Cold air intake allowed. Toyota brake parts SU003-07197 & SU003-07198 allowed with 100 lb penalty."
Request to Allow the Use of Aftermarket ECU's in Touring
slowerT2-T4 cars model year 2018+ may use non-OEM ECU with 75 lb weight penalty via spec line adjustment.
As printed in Fastrack
In T2-T4, GCR Section 9.1.9.2., Introduction, add as follows: “Touring car eligibility: Cars are eligible for the class they are listed with a specification line and with the specific allowances permitted. In addition T2-T4 cars may race one class up in touring classes above their specification line class as long as they are a legal T2-T4 car and conform to their specification line allowances as classified. Note-Model year cars 2018 or later may request a spec line adjustment which permits use of a non-oem ECU with a 75# weight addition.”
In T3 Spec Lines, Ford Mustang EcoBoost (2015-),change as follows: Model: "Ford Mustang EcoBoost (2015-) Changes effective 3/1/2021" Weight: "3450 3525" Notes: "35mm 34mm TIR required. Rear spring relocated to shock allowed. 800lbs springs (F/R) allowed. EcoBoost Performance Package allowed in part or complete. Optional: 6 speed automatic transmission (with paddle shifters). Speed Factory Intercooler, part # SF-55-002 permitted. BMR rear upper control arm camber links part #UTCA064 permitted. Non-EcoBoost Performance Pack base model 320mm front brakes, 2 piston front calipers allowed (-50lbs). Ford Motorsports 6-piston M2300V 380mm brake kit allowed with + 175lb 100lb penalty, or optional 2-piece rotor 355mm max Brembo brake kit #M-2300-S allowed with
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+ 100lb 50lb penalty. Sway bars allowed up to 35mm (F) 25mm (R). In T3 Spec Lines, Subaru WRX STI (03-07), change Weight as follows: "3400 3300" In T3 Spec Lines, Ford Mustang Coupe GT & Shelby GT 4.6L & Cal. Special (05-10), change Weight as follows: "3425 3350" In T3 Spec Lines, Ford Mustang V6 (11-14), change Weight as follows: "3425 3400" In T3 Spec Lines, BMW 330i/Ci (01-06), change Notes as follows: "Max spring rate 600 800 #/in front and rear." In T3 Spec Lines, Honda S2000 (all) (00-09), change as follows: Weight: "2.0: 2775 2675" Notes: "2.2L engine 60mm flat plate restrictor required." Effective 3/1/2022 In T3 Spec Lines, BMW Z4 M Coupe (06-08), change Notes as follows: "Euro manifold part #11 62 7 833 500 and 62 7 833 501 allowed. Ground control # MZ4Swaybar set permitted. 50mm 48mm flat plate restrictor required. Restrictor must be placed in the front of the factory engine air intake manifold opening. The plate must seal the opening so that all air entering passes through the restrictor. Allowance of 600 lb 800 lb max front, 650 lb 850 lb max rear. M3 front lower control arms 31122229453 left, 31122229454 right. E46 M3 front lower control arms allowed: 31122229453 left, 31122229454 right. May ream upright for installation of larger joint. Alternate rear lower control arm part #TSU9940B77 allowed."
fasterT3 FWD models standardized to 36mm turbo inlet restrictor; Focus ST brakes enlarged, final drive changed to 4.06 (1-4) 2.95 (5-6); GTI 14.5-17 gear ratios revised DSG/STD.
As printed in Fastrack
Effective 03/01/2022 In T3 Spec Lines, change as follows: Chevrolet Cobalt SS (08-10): Notes: "35mm 36mm" Dodge SRT-4 (03-05): Notes: "35mm 36mm" Ford Focus ST (14-18): Final Drive: "3.xx 4.06 (1-4) 2.95 (5-6)" Brakes (mm): "(F) 315 Vented Disc (R) 292 Solid Disc (F) 320 vented disc (R) 271 solid disc"
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Notes: "35mm 36mm" Ford Focus RS (16-18): Notes: "35mm 36mm" Honda Civic Si (2017-): Wheelbase (mm): "2700" Notes: "35mm 36mm" Mazda, Mazdaspeed3 (07-09): Notes: "35mm 36mm Turbo Inlet restrictor required. Rear sway bar max 42mm (body and suspension mounting same as OEM. Any spring up to a maximum spring rate of 800 pounds may be used. Damond Motorsports Mazdaspeed3 caliper bushing kit allowed F/R. CorkSport part# Gen-6-999-10 or Autotech 10-127-100K allowed." Mazda, Mazdaspeed3 (10-13): Notes: "35mm 36mm Turbo Inlet restrictor required. Rear sway bar max 42mm (body and suspension mounting same as OEM. Any spring up to a maximum spring rate of 800 pounds may be used. Damond Motorsports Mazdaspeed3 caliper bushing kit allowed F/R. CorkSport part# Gen-6-999-10 or Autotech 10-127-100K allowed." Mini Cooper S (2016-): Notes: "32mm 36mm" Volkswagen Golf R (15-16): Notes: "35mm 36mm" Volkswagen GTI, Jetta GLI (06-10): Notes: "35mm 36mm" Volkswagen GTI (2013): Wheelbase (mm): "2578" Notes: "35mm 36mm" Volkswagen GTI (14.5-17): Gear Ratios: "DSG: 2.92, 1.79, 1.14, 0.78, 0.80, 0.64 STD: 3.76, 2.08, 1.46, 1.08, 1.09, 0.97 DSG: 4.77/3.44 STD: 3.24/2.62" Notes: "35mm 36mm"
fasterT2-T4 grill openings may remove non-metallic webbed false sections; 16 square inch limit removed.
As printed in Fastrack
In T2-T4, GCR Section 9.1.9.2.D.8.a.8., change as follows: "For the sole purpose of engine radiator cooling, it is permitted to remove the outermost non-metallic webbed false grill openings that are closed in mesh style factory grill openings. Maximum allowable increase in grill opening area is 16 square inches. The modified grill opening mesh shape and contour must be retained as delivered from the manufacturer. This allowance does not permit modification to dedicated brake-only or intercooler-only grill openings. Note - It is the competitor’s responsibility to be able to verify that 16 or fewer square inches have been removed."
wordingT3 Spec Lines Subaru BRZ TS (13-21) added to class specification wording.
As printed in Fastrack
In T3 Spec Lines, Subaru BRZ TS (13-21), change car as follows: "Subaru BRZ, BRZ TS (13-21)” Appendix P. Racing Room & Passing Guidelines Revised January 2022 The Club Road Racing Program sincerely thanks Randy Pobst and Terry Earwood for developing these guidelines defining racing room and passing etiquette. Randy Pobst is a SCCA Hall of Fame member, a National Road Racing and Solo Champion, professional driver champion, and a very experienced driver’s coach. Terry Earwood is a legendary Skip Barber driver instructor, professional driver champion, professional driver’s coach,
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and is the current Driver Orientation Manager for the Trans Am Series. The guidelines were created by Randy and Terry based on decades of racing experience and driver coaching. The guidelines represent what the Club Road Racing Program’s intent is for General Competition Rules Section 6.11., Rules of the Road. 1. Racing Room & Passing Guidelines Safe, successful passing is based on what drivers can see. An overtaking car bears the largest percentage of responsibly for passing safely. 2. Peripheral Vision The overtaking car (the car attempting a pass) must get into the peripheral vision of the lead car (the car being passed) in the brake zone before the lead car turns for the corner. Once the lead car turns for the corner, it can no longer see the trailing car, because the lead car’s mirrors now point outside, and the lead car is looking toward the apex. Figure 1 Figure 1 shows that the overtaking car has gotten up to the A pillar and into the peripheral view of the lead car before turn in. The overtaking car now has taken the line away and earned the right to racing room on the inside. To earn the corner, the overtaking car must have its front end up to at least the A pillar post, or windshield, with the car under control, before the lead car turns into the corner. The goal is for the overtaking car to present itself, to arrive in the peripheral vision of the lead car, before it turns in. Open Wheel and Sports Racer Overlap An overtaking open‐wheel car or sports racer should have its leading edge of the front tire up to at least the lead car’s trailing edge of the front tire (within the leading car peripheral vision) before the lead car begins its turn in (Figure 2). The bodywork configuration of many new formula and sports racer prototypes almost encapsulate the driver from view by other drivers. That is why it is important to get the overtaking car that far up into the lead car’s peripheral vision. Figure 2 3. The Blind Spot Figure 3 Figure 3 shows at the lead car’s turn in point the overtaking car has yet to get even with the A pillar and into the peripheral vision of the lead car. The overtaking car is in a blind spot. Do not pass unless the lead car is much slower and gives racing room. 4. Racing Room Should the lead car decide to ‘go with him’, side‐by‐side, then both cars must allow each other racing room, at least a car width plus six inches or so, to the edges of the racing surface. In both cases, the trailing car must be in the lead car’s peripheral vision to safely hold position. If not in vision, then the trailing car must back off and follow, because the lead car cannot see it. The biggest mistake, and a common cause of contact, is the overtaking car taking a shortcut to the apex, from that blind spot (Turn One at Road Atlanta is classic). Pull parallel to the lead car, and as close as safely possible so that he KNOWS you are there. Sometimes, the lead car may turn in early; therefore, the overtaking car must be under enough control to avoid contact. 5. Passing on Straights On straights, the lead car is allowed “one safe move” (Figure 4). It can choose a side, but cannot move back, and cannot move over in reaction to an overtaking car if late enough to invite contact. It must leave a car’s width (plus 6 inches) of racing room if the overtaking car has already committed in that direction and has achieved an overlap next to the leader. No weaving to break the draft or to block; that is more than one move. On straights, as opposed to corner entry, it is possible for the lead car to look into its mirrors and see the overtaking car, so if the overtaking car gets even a small overlap next to the lead car, the lead car must give the overtaking car room to race, and can no longer move across the track. Figure 4 When being passed, hold your line. This means be predictable, and do not change your line to pull out of the way. ‘Hold your line’ does not mean take the line for the apex and turn in front when a much faster car is approaching. Be aware of faster traffic and leave a lane of racing room for them. 6. Overlap on Straights at Turn In If there is continuous overlap (Figure 5) next to the lead car when the turn in point is reached, the lead car must give the trailing car room to race. The lead car can no longer move completely down to the apex. It is not ok to cut across to the apex and likely into the trailing car’s nose. The car was there all the way down the straight and it is not going to suddenly disappear. There now is shared responsibility to avoid contact between the cars. Figure 5 7. The Vortex of Danger The Entry Vortex of Danger (Figure 6) is a triangle inscribed by the turn‐in point of the lead car, the apex, and the inside edge of the road. Trailing car, do not take a short cut to the apex. If you do, chances are the lead car does not see you. When overtaking, keep out of the Vortex of Danger. It is too late to pass. The hole you see is closing rapidly, you are in a blind spot, there will likely be contact, and it will be your fault. Figure 6 The Exit Vortex of Danger (Figure 7) is a triangle inscribed by the apex, the track‐out point of the lead car, and the outside edge of the road. When attempting a pass on the outside, be aware of the Exit Vortex of Danger, and back out of it if not in the lead car’s vision. It is too late to safely pass. The hole you see on the outside is closing rapidly, you are in a blind spot, there will likely be contact, and it will be your fault. Figure 7 8. The Outside Pass Figure 8 On this outside pass attempt (Figure 8), the overtaking outside car never presents itself into the vision of the lead car and cannot expect it to make room for a car it cannot see at the exit of the turn. So, the outside trailing car must back off to leave racing room for the inside lead car that cannot see it and avoid the Exit Vortex of Danger. In this situation, if the outside car makes contact or runs off the road, it is most likely their fault. Turn 5 at Road America is a prime example of where a lead car may protect his line by not using all the track on the right. The overtaking car, in this example, needs to clearly 'present himself' in the braking zone before turn in, because the lead car is looking into the corner, not at his right mirror, and in all probability will not leave racing room at the exit. Outside passing works well when both drivers have excellent spatial awareness but is a very low percentage move in most cases. Safe, successful passing depends on what a driver can see. Do not hit what you can see!
suspension & brakesT3 VW GTI/Jetta GLI allows any 4-piston brake kit instead of StopTech only, max 355mm x 32mm.
As printed in Fastrack
In T3 Spec Lines, Volkswagen GTI, Jetta GLI (06-10), change Notes as follows: "Front and Rear sway bar max 42mm (body and suspension mounting same as OEM), Any spring up to a maximum spring rate of 800 pounds may be used. Effective 03/01/2022 Turbo Inlet Restrictor 36mm required max 60mm from impeller. R32 model brake package allowed. Any 4 piston Stoptech, Alcon or Brembo brake kit (max 355mm x 32mm) incl. 2-piece rotors allowed (+50lb) ECS street shield 003425ECS01AKT allowed. Neuspeed intake and filter # 65.10.97 allowed or OEM Air Intake andfilter - 25 lb."
fasterT3 Scion FR-S/Toyota 86 GT and Subaru BRZ lose 75 lbs, to 2675 lbs minimum weight.
As printed in Fastrack
In T3 Spec Lines, Scion FR-S/Toyota 86 GT (13-21), change as follows: Weight: "2750 2675" Notes: "Commercial aftermarket rear wing permitted no higher than the roofline or wider than the max body width, max end plates 72.0 square inches. Front splitter/spoiler permitted but may not exceed the max body width or extend more than 3.0 inches past the original bodywork as viewed from above. BRZ TS Rear wing and body work allowed." In T3 Spec Lines, Subaru BRZ (13-21), change as follows: Model: Subaru BRZ TS (13-21) Weight: "2750 2675"
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Notes: "Commercial aftermarket rear wing permitted no higher than the roofline or wider than the max body width, max end plates 72.0 square inches. Front splitter/spoiler permitted but may not exceed the max body width or extend more than 3.0 inches past the original bodywork as viewed from above."
Request to Classify 2022 Toyota 86 / Subaru in T3 & T4
fasterT2-T4 clarified: grill opening area may increase max 16 sq in for radiator cooling only, retaining factory mesh shape.
As printed in Fastrack
In T2-T4, GCR section 9.1.9.2.D.8.a.8, clarify as follows: "Exclusively for For the sole purpose of engine radiator cooling purposes, it is permitted to remove the outermost non-metallic webbed false grill openings that are closed in mesh style factory grill openings. Maximum allowable increase in grill opening area is 16 square inches. The modified grill opening mesh shape and contour must be retained as delivered from the manufacturer. This allowance does not permit modification to dedicated brake-only or intercooler-only grill openings. (Note - It is the competitor’s responsibility to be able to verify that 16 or fewer square inches have been removed.)"
Please Adjust Years Allowed for BMW 335i to 07-10, not 08-13
wordingT2, T3, T4 radiator and coolant hoses may be replaced with aftermarket options; coolant temp sensor modification permitted.
As printed in Fastrack
In GCR, Section 9.1.9.2.D.3.a., add the following: "3. Radiator and coolant hoses may be replaced with aftermarket options. Modification for coolant temp sensors is permitted."
wordingT3 Nissan Z 350Z and 370Z suspension control arm options expanded from 'and' to 'or' for SPC parts.
As printed in Fastrack
In T3 Spec Lines, Nissan 350Z Track/ Touring/ Standard/ Nismo (03-08), change Notes as follows: "SPC Control Arms 72130, 72125 and or 72123 are allowed." In T3 Spec Lines, Nissan 370Z (09-16) / 370Z NISMO Edition (09-13), change Notes as follows: "SPC Control Arms 72130, 72125 and or 72123 are allowed."
wordingT2, T3, T4 clarify that spec lines listing permitted or allowed parts are alternatives to category rules, not replacements.
As printed in Fastrack
In GCR, Section 9.1.9.2.C.4., add the following" "b. Spec lines may include modifications that are "permitted" or "allowed". This means that they are a permitted as alternatives to the allowances written into the category rules. For example "Koni shock #xxxxxxx allowed" implies that you could use the Koni option or any option that complies with the category rules."
slowerT3 Mazda MX-5 Global Cup Miata ND2 with sequential gearbox allowed +100 lbs weight adder.
As printed in Fastrack
In T3 Spec Lines, Mazda MX-5 Global Cup Miata (2016-2019) ND2, change as follows: "Mazda MX-5 Global Cup Miata (2016-2019 21) ND1, ND2" In T3 Spec Lines, Mazda MX-5 Global Cup Miata (2016-2019) ND2, add to Notes the following: "ND2s with sequential gearbox allowed +100 lbs."
wordingT3 Porsche Boxster/Boxster S (00-04) now permits any OEM or aftermarket hardtop retaining OEM roof silhouette.
As printed in Fastrack
In T3 Spec Lines, Porsche Boxster/ Boxster S (00-04), add to Notes as follows: "Any OEM or aftermarket hardtop permitted that retains the OEM roof silhouette."
wordingT3 Mazdaspeed3 07-09 and 10-13 now allow CorkSport Gen-6-999-10 or Autotech 10-127-100K fuel pumps.
As printed in Fastrack
In T3 Spec Lines, Mazda Mazdaspeed3 (07-09) add to Notes as follows: "CorkSport part# Gen-6-999-10 or Autotech 10-127-100K allowed." In T3 Spec Lines, Mazda Mazdaspeed3 (10-13) add to Notes as follows: "CorkSport part# Gen-6-999-10 or Autotech 10-127-100K allowed."
slowerT2-T4 clutch disc and pressure plate must be at least 95% of factory OEM weight.
As printed in Fastrack
In GCR, Section 9.1.9.2.D.1.i.5., change as follows: "T2-T4 only: Any clutch disc and pressure plate of OEM diameter may be used, provided that they shall be bolted directly to an unmodified stock flywheel and is no lighter than 95% of the factory OEM clutch disc and pressure plate."
slowerT3 Ford Mustang EcoBoost gets 35mm TIR; Nissan 350Z DE Motor down 25 lbs to 3250; Mustang V6 down 50 lbs to 3475, restrictor tightened 55mm to 58mm.
As printed in Fastrack
In T3, Spec Lines, Ford Mustang EcoBoost (2015-), change Notes as follows effective 3/1/2021: "36 35mm TIR required. Rear spring relocated to shock allowed. 800lbs springs (F/R) allowed. EcoBoost Performance Package allowed in part or complete. Optional:6 speed automatic transmission (with paddle shifters). Speed Factory Intercooler,part # SF-55-002 permitted. BMR rear upper control arm camber linkspart #UTCA064 permitted. Non-EcoBoost Performance Pack base model 320mmfront brakes, 2 piston front calipers allowed (-50lbs). Ford Motorsports 6-piston M2300V 380mm brake kit allowed with +175lb penalty, or optional 2-piece rotor 355mm max Brembo brake kit #M-2300-S allowed with +100lb penalty. Sway bars allowed up to 35mm (F) 25mm (R)." In T3, Spec Lines, Nissan 350Z Track/ Touring/ Standard/ Nismo (03-08), change Weight as follows:
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"DE Motor: 3275 3250" In T3, Spec Lines, Ford Mustang V6 (15-17), change Weight as follows: "3525 3475" In T3, Spec Lines, Ford Mustang V6 (15-17), change Notes as follows: "55 58mm flat plate restrictor required. Rear spring relocated to shock allowed. 800lbs springs (F/R) allowed. Track package allowed. Optional: 6 speed automatic transmission (with paddle shifters). Sway bars allowed up to 35mm (F) 25mm (R). Ford Motorsports 6-piston M2300V 380mm brake kit allowed with +175lb penalty, or optional 2-piece rotor 355mmmax Brembo brake kit #M-2300-S allowed with +100lb penalty."
unclearT3 and T4 Mazda MX-5 06-15 now allow Mazda Transmission kit part # 0000-02-5700.
As printed in Fastrack
In T4, Spec Lines, Mazda MX-5 / Club Model (06-15), add to Notes as follows: "Mazda Transmission kit part # 0000-02-5700." In T3, Spec Lines, Mazda MX-5 NC (06-15), add to Notes as follows: "Mazda Transmission kit part # 0000-02-5700."
wordingT3 and T4 FR-S, 86, and BRZ year ranges capped: T3 at 2021, T4 at 2017-2021.
As printed in Fastrack
In T3, Spec Lines, Scion FR-S/ Toyota 86, GT (13-20), change Year as follows: "(13-20 21)" In T3, Spec Lines, Subaru BRZ (13-20), change Year as follows: "(13-20 21)" In T4, Spec Lines, Subaru BRZ (2017-), change Year as follows: "(20 17-21)" In T4, Spec Lines, Toyota 86, GT (2017-), change Year as follows: "(20 17-21)"
wordingT3 Mazda MX-5 Global Cup Miata ND2 2016-2019 must meet all ND2 Global Cup rules without appendix reference.
As printed in Fastrack
In T3 Spec Lines, Mazda MX-5 Global Cup Miata change car and notes as follows: "(2016-2019) ND2" "Must meet all ND2 MX-5 Global Cup rules in Appendix."
Request for competition adjustment for the MK5 GTI FSI engine
fasterT3 VW GTI FSI gains turbo inlet restrictor allowance to 60mm, R32 brakes, Stoptech 4-piston kit, and Neuspeed intake options.
As printed in Fastrack
In T3 Spec Lines, Volkswagen GTI, Jetta GLI (06-10), change notes as follows: "Front and rear sway bar max 42mm (body and suspension mounting same as OEM), Any spring up to a maximum spring rate of 800 pounds may be used. Turbo Inlet Restrictor 35mm allowed max 60mm from impeller. R32 model brake package allowed. Any 4 piston Stoptech brake kit (max 355mm) incl. 2-piece rotors allowed (+50lb) ECS street shield 003425ECS01AKT allowed. Neuspeed intake and filter # 65.10.97 allowed or OEM Air Intake and filter -25 lbs."
In T3 Spec Lines, Nissan 350Z Track/Touring/Standard/Nismo (03-08), change Notes as follows: "Nissan brake ki t part numbers 41000-BRKIT NISMO Race Front Caliper Kit 41001-FR350, NISMO Front Rotor-RIGHT 40206-SZ350, NISMO Front Rotor-LEFT 40207-SZ350 permitted." In T3 Spec Lines, Nissan 350Z Track/Touring/Standard/Nismo (03-08) Spec 2, change Notes as follows: "DE Engine: 57mm flat plate restrictor required. Zspeed and Z1 alternative clutch slave permitted. Must conform to all SpecZ 2018 Edition rules. No other touring allowances beyond 2018 SpecZ edition rules or allowances listed here. Nissan brake ki t part numbers 41000-BRKIT NISMO Race Front Caliper Kit 41001- FR350, NISMO Front Rotor-RIGHT 40206-SZ350, NISMO Front Rotor-LEFT 40207-SZ350 permitted."
suspension & brakesT3 Ford Mustang EcoBoost and V6 sway bars allowed up to 35mm front, 25mm rear.
As printed in Fastrack
In T3, Ford Mustang EcoBoost (2015-), add to the notes as follows: "Sway bars allowed up to 35mm (F) 25mm (R)." In T3, Ford Mustang V6 (15-17), add to the notes as follows: "Sway bars allowed up to 35mm (F) 25mm (R)."
wordingT3 05-10 V8 Mustang allowed parts clarified: strut tower brace, radiator, springs to 500 lbs/in front and 300 lbs/in rear, sway bars, damper kit.
As printed in Fastrack
In T3, Ford Mustang Coupe GT &Shelby GT 4.6L & Cal.Special (05-10), add to the notes as follows: "The following parts are allowed: Strut tower brace part #M20201-S197, Radiator#M-8005-S197, maximum spring rate of 500 lbs/in front, 300 lbs/in rear allowed, sway bars M-5490-A, damper kit M- 18000-A."
fasterPontiac Solstice GXP and Saturn Sky move from T2 to T3; wheels widen to 18 x 9.5 inches, Sky weight drops to 3200 lbs.
As printed in Fastrack
In T3 Spec Lines, add T2 Spec information for Pontiac Solstice GXP Coupe / Convertible (07-09) with the following changes in Max Wheel Size: "18 x 8 9.5" In T3 Spec Lines, add T2 Spec information for Saturn Sky / Convertible (07-09) with the following changes in Max Wheel Size: "18 x 8 9.5" In T3 Spec Lines, add T2 Spec information for Saturn Sky / Convertible (07-09) with the following changes in Weight:
In T3 Spec Lines, Subaru WRX STI (03-07), change Tire Size as follows: "275 245" In T3 Spec Lines, Subaru WRX STI (03-07), change Weight as follows: "3350 3400" In T3 Spec Lines, Subaru WRX STI (03-07), change Notes as follows: "The following parts are allowed: Phoenix Performance brake duct kit # IPBK01. Front Sway bar Whiteline PN #BSF36XXZ and Rear Sway bar Whiteline PN #BSF37XZ allowed. Racecomp Brake duct kit part #RCE-CFKBK is allowed. Max spring rate (F) 800 lbs/in, (R) 900 lbs/in. Aftermarket Intercooler
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allowed. 35mm 37mm TIR required. 18x10 wheels allowed +100 lbs." In T3 Spec Lines, Subaru Legacy GT/Spec B (05-09), change Weight as follows: "3300 3350" In T3 Spec Lines, Subaru Legacy GT/Spec B (05-09), change Notes as follows: "Up to 22mm front and 20mm rear sway bars allowed. Intercooler allowed. Max F/R spring rate 800 lb/in. 35mm 37mm Turbo inlet restrictor required. SPC- 67665 rear camber arm allowed."
wordingT2 requires onboard fire system; T3 and T4 may have one per GCR 9.3.
As printed in Fastrack
Effective 01/01/2020, In T2-T4, GCR section 9.1.9.2.D.10.c., make changes as follows: "All cars shall have, as a minimum, a fire extinguisher meeting the specifications of GCR Section 9.3 Fire System. Touring 2 cars must have a fire system installed. Touring Category Touring 3 and Touring 4 automobiles may be equipped with a fire system meeting the specifications of GCR Section 9.3 Fire System."
slowerT3 Nissan 350Z and 370Z HR engines: restrictor plate enlarged from 37mm to 42mm, weight increased 50-100 lbs.
As printed in Fastrack
In T3, Nissan 350Z Track/ Touring/ Standard/ Nismo (03-08), change Weight as follows: "DE Motor: 3225 3275 HR Motor: 3275 3325" In T3, Nissan 350Z Track/ Touring/ Standard/ Nismo (03-08), change Notes as follows: "The following are allowed: Track option Aero package, Rear diff cover Nismo part #99996-35TDK or, alternatively parts #383510C021, OEM Breather 38356-EV00A, OEM Stud 38354-0C00A, Nissan Motorsports. Nissan heavy duty spring kit part #99996-65Z3OUS, Front sway bar max 37mm. Rear sway bar max 25mm. SPC Control Arms 72125 allowed. Springs up to 700 lbs./in. allowed front and rear. HR Engine: Two 37mm 42mm flat plate restrictors required. DE Engine: 57mm flat plate restrictor
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required. Rear spring relocation to shock permitted. Zspeed and Z1 alternative clutch slave permitted. Nissan brake kit part number 41000-BRKIT permitted." In T3, Nissan 350Z Track/ Touring/ Standard/ Nismo (03-08) Spec Z, change Weight as follows: "DE Motor: 3275 3325 HR Motor: 3325 3375" In T3, Nissan 350Z Track/ Touring/ Standard/ Nismo (03-08), change Notes as follows: "Nissan Motorsports: Shock Front left P/N E6110-SZ350 & Front right E6111- SZ350 & rear E6210-SZ350, springs front P/N 54010-SZ350 & rear 55020- SZ350, F&R 5600S-SZ350, Front sway bar max 37mm. Rear sway bar max 25mm, Bushings P/N (54541, 54560, 55045, 55148, 55149, 55152, 55153, 55158, 56218) - RRZ30 allowed. Nismo flywheel permitted. SPC Control Arms 72125 allowed. HR Engine: Two 37mm 42mm flat plate restrictors required. DE Engine: 57mm flat plate restrictor required. Zspeed and Z1 alternative clutch slave permitted. Must conform to all SpecZ 2018 Edition rules. No other touring allowances beyond 2018 SpecZ edition rules or allowances listed here. Nissan brake kit part number 41000-BRKIT permitted." In T3, Nissan 370Z (09-16) /370Z NISMO Edition (09-13), change Weight as follows: "3275 3325" In T3, Nissan 370Z (09-16) /370Z NISMO Edition (09-13), change Notes as follows: "5300S-SS370 T-2 spring kit allowed; 54600-SS370 T-2 front and rear sway bar kit allowed. Sports Package is allowed. Two 37mm 42mm flat plate restrictors required. SPC Control Arms 72125 allowed. Max spring rate of 700 lbs/in front and rear. Rear spring relocation to shock permitted. Zspeed and Z1 alternative clutch slave permitted. Any swaybar up to 37mm front and up to 30mm rear allowed."
tyres & wheelsT3 Mazda MX-5 Global Cup Miata (2016-) tires now 215/610 R17 BF Goodrich G-Force Slick or wet; removes touring tire requirement.
As printed in Fastrack
In T3, Mazda MX-5 Global Cup Miata (2016-), change Tire Size as follows: "Series spec tires: 215/610 R17 BF Goodrich G-Force Slick, 20/61-17 G-Force Wet-P2G or 225 DOT" In T3, Mazda MX-5 Global Cup Miata (2016-), change Notes as follows: "Shoulder harness installation must conform to FIA mounting specifications that are approved for this vehicle per section 6.2 FIA article 253, safety equipment. Must meet all MX-5 Global Cup rules in Appendix. Tires must conform to the Touring rules. Any OEM or aftermarket hardtop is permitted that retains the OEM roof silhouette, including Mazda hardtop Mazda hardtop part #0000-07-5902- ND and #0000-07-5902-ND part #0000-07-5901 (discontinued DG Motorsports). If a hardtop is used, latches
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shall be replaced with positive fasteners. OBD2 requirement does not apply. Ballast box may be removed."
In T3, Ford Mustang Coupe GT & Shelby GT 4.6L & Cal. Special (05-10), change Notes as follows: "The following parts are allowed: Strut tower brace part #M20201-S197, Radiator #M-8005-S197, Ford Spring kit M-5300-Kmax spring rate of 500 lbs/in front, 300 lbs/in rear, sway bars M-5490-A, damper kit M18000-A. A flat plate restrictor with two 40 mm holes required directly behind throttle body. Rear Lower Control Arm Kit # M-5649-R1, Rear Shock Mount Kit # M-18197-A, Jounce Bumper Kit # M-5570- A, Front Strut Mount # M-18183-C allowed. An Aluminum driveshaft is allowed. Rear Axle Cover #M- 4033-K, Spring Kit #M-5300A (M-5310-A- Front, M5560-A Rear), Strut Tower Brace #M- 20201- S197, Swaybar Kit #M-5490, Jounce Bumper Kit # M-5570-A, Panhard Bar #M-4264-A, Rear Lower Control
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Arms #M-5649-R1, Rear Upper Shock Mount #M-18197-A (Rear spring relocation to shock permitted with use of this kit). Alternate metallic driveshaft is allowed. Prothane front control arm bushings 6-220 and 6-218 and differential bushing 6-315 allowed. Ford Racing part # M-2300-S permitted."
wordingT3 BMW SpecE46 updates to SpecE46 rules Version 2.6 to 2.7, tire width to 225 maximum.
As printed in Fastrack
In T3, BMW SpecE46, change Notes as follows: "Must conform to all SpecE46 rules Version 2.6 2.7. SpecE46 spec tire permitted or any DOT permitted up to 225 permitted. No other touring allowances permitted. Engines may not be modified unless specified in the Spec E46 rules and must conform to touring tech procedures. Driver must possess a current copy of the rules. Dyno results do not ensure engine compliance."
In T3, Subaru WRX (02-05), change Weight as follows: "3350 3250" In T3, Subaru WRX (02-05), change Notes as follows: "Following parts are allowed: 27mm max front and rear sway bar allowed, Max spring rate (F) 800 lbs/in, (R) 900 lbs/in. Aftermarket Intercooler allowed. 2006-2007 WRX TR brakes allowed. 2004-2007 WRX STI brakes allowed +100 lbs. 35mm TIR required."
wordingT2-T4 spare tire/wheel rules clarified: removable covers can be removed with hardware and bracketry.
As printed in Fastrack
In T2-T4, GCR section 9.1.9.2.D.9.d.3., make changes as follows: "Spare tires and A any removable covers used to cover spare tires, tools, bins, etc., may be removed along with attaching hardware and bracketry."
wordingT3 Mk7 GTI gains R32 brake package, 4-piston Stoptech kit to 355mm, and ECS street shield allowance.
As printed in Fastrack
In T3, GCR section 9.1.9.2. T3, Volkswagen GTI (14.5-17), make changes to the notes as follows: "Front and rear sway bar max 42mm (body and suspension mounting same as OEM), Any spring up to a maximum spring rate of 800 pounds may be used. Turbo Inlet Restrictor 35 mm allowed max 60mm from impeller. R32 model brake package allowed. Any 4 piston Stoptech brake kit (max 355mm) incl. 2- piece rotors allowed (+50lb) ECS street shield ECS-2986429 allowed."
cars addedT1-LP Ford Mustang GT 5.0L 2018+ classified at 3400 lbs with 65mm flat plate restrictor.
As printed in Fastrack
In T1-LP, Ford Mustang GT (2015-), add to the year as follows: “(2015-2017)” In T2, Ford mustang GT 5.0L (2015-), add to the year as follows: “(2015-2017)” In T3, Ford Mustang V6 (2015-), add the year as follows “(2015-2017)” In T1-LP, classify the Ford Mustang GT 5.0L (2018-) as follows:
A specification table follows in the original; it is not shown here.
wordingT4 Mazda MX-5 Club (06-15) and (2016-), T3 MX-5 Cup and Miata (2016-) hardtop rules clarified; wording changes to permitted parts and specifications.
As printed in Fastrack
In T4, Mazda MX-5 / Club Model (06-15), make changes to the notes as follows: “Mazdaspeed MX-5 roof permitted #0000-07-5901-CC or #0000-07-5901 (discontinued DG Motorsports) with +20lb increase to base weight. The SM5 suspension (only) is allowed with a 100 lbs. weight increase. Non-OEM limited slip differential allowed with +50 lbs. weight penalty. Any hard top following the OEM silhouette allowed. Any OEM or aftermarket hardtop is permitted that retains the OEM roof silhouette, including Mazda hardtop part # 0000-07- 5902-ND and part #0000-07-5901 (discontinued DG Motorsports).” In T4, Mazda MX-5 Miata/Club (2016-), make changes to the notes as follows:
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“Mazdaspeed MX-5 roof permitted #0000-07-5901-CC or #0000-07-5901 (discontinued DG Motorsports) with +20lb increase to base weight. Any OEM or aftermarket hardtop is permitted that retains the OEM roof silhouette, including Mazda hardtop part #0000-07-5902-ND and part #0000-07-5901 (discontinued DG Motorsports).” In T3, Mazda MX-5 Global Cup Miata (2016-), make changes to the notes as follows: “Any OEM or aftermarket hardtop is permitted that retains the OEM roof silhouette, including Mazda hardtop part #0000-07-5902-ND and part #0000-07-5901 (discontinued DG Motorsports).” In T3, Mazda MX-5 Cup, make changes to the notes as follows: “Any OEM or aftermarket hardtop permitted that retains the OEM roof silhouette, including part Mazda hardtop part #0000-07-5902-ND and #0000-07-5901, the discontinued DG Motorsports top (if a hardtop is used, latches shall be replaced with positive fasteners).” In T3, Mazda MX-5 Miata (2016-), make changes to the notes as follows: “Any OEM or aftermarket hardtop permitted that retains the OEM roof silhouette including Mazda hardtop part #0000-07-5902-ND and part #0000-07-5901 (discontinued DG Motorsports top).”
fasterT3 Saturn Sky intercooler tolerance increases from 32mm to 35mm TIR; new calipers and springs permitted.
As printed in Fastrack
In T3, Saturn Sky /Convertible (07-09), add to the notes as follows: “32mm 35mm TIR required. Hahn HIC-1150 or Dejon FIC-SSA Intercooler allowed. Maximum spring rate 800 lb/inch for coil over type spring permitted. Any aftermarket 4-piston caliper allowed.”
Consider opening class rules to allow any thermostat
wordingT3 and T4 Mazda MX-5 Miata eligibility capped at 2018 model year, effective 2019-03-01.
As printed in Fastrack
In T3, Mazda MX-5 Miata (2016-), make changes to years as follows: “(2016-2018)” In T4, Mazda MX-5 Miata/Club (2016-), make change to years as follows: “(2016-2018)”
wordingT3 Mazda Mazdaspeed3 07-09 front brake disc increases to 320mm vented, rear to 300mm solid.
As printed in Fastrack
In T3, Mazda Mazdaspeed 3 (07-09), make corrections to the brakes as follows: “(F) 300 320 Vented Disc (R) 280 300 Solid Disc” In T3, Mazda Mazdaspeed 3 (10-13), make corrections to the wheelbase as follows: “2309 2639”
wordingT4 Ford Fiesta ST years corrected to 14-; T4 Fiat 124/Abarth Edition years added 16-18; battery rule clarified.
As printed in Fastrack
In T4, remove the following from the header in the spec line table: Wheel Size(in.)/ Mat’l. In T4, Toyota Celica GT (00-05), add to spec line as follows: Wheelbase: 2600 Wheel size: 15 x 7 In T4, Kia Forte Koup and Sedan LX/EX (2010-), add years as follows: (2010-2013) In T4, Kia Forte Koup and Sedan SX (2010-), add years as follows:
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(2010- 2013) In T4, Ford Fiesta ST (12-15), make changes to years as follows: (12 14-15-) In T4, Fiat 124 / Abarth Edition, add years as follows: (16-18) In GCR section 9.1.9.2.D.1.g.3, make changes as follows: Batteries may be replaced with those of an alternate manu¬(<--strike extra character)facturer, provided they are of similar amp-hour capacity, size and within 10% of OEM weight.
Request to update SpecE46 Appendix N. with 2019 Rules
wordingT3 BMW SpecE46 rules reference updated from Appendix N to Version 2.6 Effective Jan 1, 2019.
As printed in Fastrack
In T3, BMW SpecE46, change notes as follows: “Must conform to all SpecE46 rules in Appendix N Version 2.6 Effective Jan 1, 2019. SpecE46 spec tire permitted per SpecE46 appendix rules.” In GCR, remove Appendix N in its entirety.
suspension & brakesT3 Nissan 350Z Track/Touring/Standard/Nismo 03-08 permitted to use Nissan brake kit part number 41000-BRKIT.
As printed in Fastrack
In T3, Nissan 350Z Track/Touring/Standard/Nismo (03-08), add to the notes as follows: “Nissan brake kit part number 41000-BRKIT permitted.” In T3, Nissan 350Z Track/Touring/Standard/Nismo (03-08) Spec Z, add to the notes as follows: “Nissan brake kit part number 41000-BRKIT permitted.”
Add Clarification to Spec Car Classifications Vehicle Spec
wordingT1-T3 spec cars receive clarifications on permitted modifications, documentation requirements, and rule conformance; no performance changes.
As printed in Fastrack
Lines In T1, Porsche Cayman GTS (2011), add to notes as follows: “Must conform to 7/15/2015 version 15 VTS. TC aftermarket ABS controller allowed. PDK Permitted +100lbs. No other touring modifications or allowances permitted beyond the noted VTS and these spec line allowances.” In T1, Audi TTRS (GTS 2011 Spec), add to notes as follows: “Must conform to December 14th, 2011 revision 3 GTS rules. No other touring modifications or allowances permitted beyond the noted GTS rules allowances.”
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In T1, Ferrari 430 Challenge, add to notes as follows: “As homologated. DOT tires per 9.1.4.P.1; weight as specified; side windows must be removed; OEM carbon brakes or the Ferrari steel brakes from the 360 Challenge car (F 355 x 32 vented disc, R 330 x 18 vented disc) are permitted; If 18 inch “360” brakes are used, 18 inch wheels are permitted; 19 inch Ferrari Challenge wheels as delivered from factory permitted. Non-OEM rear wing / splitter reduce restrictor by 5 mm. No other touring modifications or allowances permitted.” In T1, Porsche 996 GT3 Cup (02-05), add to notes as follows: “996 required gear ratios: Crown wheel and pinion 8/32; 1st gear 13/41, 2nd gear 20/40, 3rd gear 25/39, 4th gear 29/36 or 26/34, 5th gear 32/33 or 32/35, 6th gear 35/30 or 34/31. No other touring modifications or allowances permitted except as noted in this spec line.” In T2, BMW M235iR (-2016), add to notes as follows: “As homologated from BMW Motorsports No other changes or touring rule allowances permitted. Must conform to World-Challenge VTS 2/25/2016 rev.2.” In T2, Nissan 350Z Track/ Touring/ Standard/ Nismo Spec Z (03-08), add to notes as follows: “SPL rear toe links part# SPL RTA Z33 permitted. Stillen part #400338 permitted. Must conform to all SpecZ 2018 Edition rules. No other touring allowances beyond 2018 SpecZ edition rules or allowances listed here.” In T2, Porsche Spec Cayman, add to notes as follows: “Must conform to all SPC rules in the PCA rulebook. Each competitor shall have available definitive current documentation of the PCA rules. Spec Cayman tires permitted per Spec Cayman rules. Must use DOT tires. No other touring allowances permitted.” In T2, Spec Mustang, add to notes as follows: “Must meet all requirements of Spec Mustang rules located in the Appendices. Cars must Comply with all SCCA T2 graphics and marking rules, including the posting of minimum weight. It is the responsibility of the driver to declare if its running under T2 rules or SMG rules - no mixing between rules.In T3, BMW SpecE46, add to notes as follows: “Must conform to all SpecE46 rules in Appendix N. SpecE46 spec tire permitted per SpecE46 appendix rules or any DOT permitted. No other touring allowances permitted.” In T3, Nissan 350Z Track/ Touring/ Standard/ Nismo (03-08) Spec Z, add to notes as follows: “DE Engine: 57mm flat plate restrictor required. Zspeed and Z1 alternative clutch slave permitted. Must conform to all SpecZ 2018 Edition rules. No other touring allowances beyond 2018 SpecZ edition rules or allowances listed here.” In T3, Porsche Spec Boxster, add to notes as follows: “Must conform to all SPB rules in the PCA rulebook. Each competitor shall have available definitive current documentation of the PCA rules. Tires must meet 2016 SPB rules or any 225 DOT tire permitted. No other touring allowances permitted.”
wordingT2-T4 subframe bushings may now be replaced with non-spherical bushings of any material.
As printed in Fastrack
In GCR section 9.1.9.2.i.7, make changes as follows: “Fluid filled motor mounts, fluid filled transmission mounts, and fluid filled differential mounts and sub-frame bushings may be replaced with non spherical non-metallic mounts. Sub-frame bushings may be replaced with non-spherical bushings; any material allowed. Mounts that are replaced may serve no other function or provide any other performance improvement or alteration than the original purpose.”
Additional weight adjustments for T3 cars T3 weight loss
fasterT3 field loses 50 lbs across 27 cars including Acura TL, BMW 335i, Camaro, Mustang, Miata, RX-8, 370Z, WRX.
As printed in Fastrack
program In T3, Acura TL SHAWD (09-13), make weight change as follows: 3600 3550 In T3, BMW 335i (08-13), make weight change as follows: 3400 3350 In T3, BMW 330i/Ci (01-06), make weight change as follows: 3235 3185 In T3, Cadillac ATS (2015), make weight change as follows:
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3300 3250 In T3, Chevrolet Camaro (2016), make weight change as follows: 3550 3500 In T3, Chevrolet Camaro V6 (10-15), make weight change as follows: 3450 3400 In T3, Chevrolet Camaro V6 (2016-), make weight change as follows: 3550 3500 In T3, Chevrolet Camaro V6 1LE (2016-), make weight change as follows: 3550 3500 In T3, Chevrolet Cobalt SS (08-10), make weight change as follows: 3100 3050 In T3, Dodge SRT-4 (03-05), make weight change as follows: 3000 2950 In T3, Ford Focus RS (2016-), make weight change as follows: 3300 3250 In T3, Ford Mustang EcoBoost (2015-), make weight change as follows: 3475 3450 In T3, Ford Mustang Mach I (03-04), make weight change as follows: 3500 3450 In T3, Honda S2000 (all) (00-09), make weight changes as follows: 2.0: 2825 2775 2.2: 2925 2875 In T3, Hyundai Genesis Coupe (2010-), make weight change as follows: 3200 3150 In T3, Mazda Mazdaspeed3 (07-09), make weight change as follows: 3100 3050 In T3, Mazda Mazdaspeed3 (10-13), make weight change as follows: 3100 3050 In T3, Mazda MazdaSpeed Miata (04-05), make weight change as follows: 2600 2550 In T3, Mazda MX-5 Cup, make weight change as follows: 2600 2550 In T3, Mazda RX-8 Base/R3 (04-12), make weight change as follows: 2800 2750 In T3, Nissan 370Z (09-16) / 370Z NISMO Edition (09-13), make weight change as follows: 3350 3275 In T3, Porsche Spec Boxster, make weight change as follows: 2650 2600 In T3, Saturn Ion Redline (04-07), make weight change as follows: 3050 3000 In T3, Subaru WRX (11-14), make weight change as follows: 3250 3200 In T3, Subaru WRX STI (03-07), make weight change as follows: 3400 3350 In T3, Volkswagen Golf R (15-16), make weight change as follows: 3150 3100 In T3, Volkswagen GTI, Jetta GLI (06-10), make weight changes as follows: DSG @ 3130 3080 STD @ 3100 3050 In T3, Volkswagen GTI (2013), make weight changes as follows: DSG @ 3130 3080 STD @ 3100 3050
The committee recognizes the importance of ECU tune compliance. We are compiling information and working on programs and processes to confirm that racers are utilizing approved tunes. Considering the various vehicles and tuning methods in the classes, this is no small task. Your suggestions are appreciated and we will consider them as we move forward.
The rules currently require a cross-dash bar in T3 and T2. It is an option in T4. Making it a requirement would be a severe hinderance to T4 cars that don't have one currently.
Effective 1/1/2026, In GCR Section 9.1.9.2.D.1.c.2., change as follows: "Only the fuel type specified by the Owner’s and/or Factory Service Manual may be used. Refer to GCR Section 9.3 Fuel, for permitted fuel specifications."
Thank you for your letter. We do not support adding alternative windows to cars classed in Touring. Please consider mounting the duct in the passenger front window.
In GCR, Section 9.1.9.3.F.7.a., change as follows: “All wheels shall be of the diameter and rim width combination as originally offered by the OEM (including optional equipment) for the year(s), make, model and trim level(s) of the car as listed on the specification line. Unless noted in the vehicle's spec line, wheel size and tire size are not restricted as long as they fit within unmodified OEM body work. It is permissible to roll the inner fender lip to prevent rubbing.” In GCR, Section 9.1.9.3.F.7.d., delete in its entirety and reletter: “Wheels are permitted any offset provided the tire tread (that portion of the tire that contacts the ground) does not protrude beyond the fender opening when viewed from the top perpendicular to the ground.”
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In T2 Touring ET Spec Lines, classify the following EV cars as follows: T2 ET Motor Required Restriction Max Wheel Size (Inches) Tire Size (Max) Brakes Weight in lbs Notes BMW eDrive35 2022- Single motor, RWD Largest that will fit without body modifications Largest that will fit without body modifications Unknown 4855 BMW eDrive40 2022- Single motor, RWD Largest that will fit without body modifications Largest that will fit without body modifications Unknown 4855 BMW xDrive40 2022- Dual motor, AWD Largest that will fit without body modifications Largest that will fit without body modifications Unknown 5144 BMW M50 2022- Dual motor, AWD Largest that will fit without body modifications Largest that will fit without body modifications Unknown 5193 Chevrolet Bolt 1LT 2017-2023 Single motor, FWD Largest that will fit without body modifications Largest that will fit without body modifications 11.0" Disc (F), 10.0" Disc (R) 3764 2017 - 2023 Single motor, FWD Largest that will fit without body modifications Largest that will fit without body modifications 11.0" Disc (F), 10.0" Disc (R) 3799 Ford Mach E Select (RWD) 2021 - Single motor, RWD Largest that will fit without body modifications Largest that will fit without body modifications 14.2" Disc (F), 12.4" Disc (R) 4569 Ford Mach E Select (AWD) 2021- Dual motor, AWD Largest that will fit without body modifications Largest that will fit without body modifications 14.2" Disc (F), 12.4" Disc (R) 4762 Ford Mach E Premium (RWD) 2021- Single motor, RWD Largest that will fit without body modifications Largest that will fit without body modifications 14.2" Disc (F), 12.4" Disc (R) 4569 Ford Mach E Premium (AWD) 2021- Dual motor, AWD Largest that will fit without body modifications Largest that will fit without body modifications 14.2" Disc (F), 12.4" Disc (R) 5095 Ford Mach E GT (AWD)2021 Dual motor, AWD Largest that will fit without body modifications Largest that will fit without body modifications 15.2" Disc (F), 12.4" Disc (R) 5095 Hyundai Ioniq 5 SE (RWD) 2022- Single motor, RWD Largest that will fit without body modifications Largest that will fit without body modifications 12.8" Disc (F/R) 4430 Hyundai Ioniq 5 SE (AWD) 2022- Dual motor, AWD Largest that will fit without body modifications Largest that will fit without body modifications 12.8" Disc (F/R) 4694 Hyundai Ioniq 5 SEL (RWD) 2022- Single motor, RWD Largest that will fit without body modifications Largest that will fit without body modifications 12.8" Disc (F/R) 4472 Hyundai Ioniq 5 SEL (AWD) 2022- Dual motor, AWD Largest that will fit without body modifications Largest that will fit without body modifications 12.8" Disc (F/R) 4721 Hyundai Ioniq 5 Limited (RWD) 2022- Single motor, RWD Largest that will fit without body modifications Largest that will fit without body modifications 12.8" Disc (F/R) 4644 Hyundai Ioniq 5 Limited (AWD) 2022- Dual motor, AWD Largest that will fit without body modifications Largest that will fit without body modifications 12.8" Disc (F/R) 4893 Volkswagen ID4 S(RWD) 2021 Single motor, RWD Largest that will fit without body modifications Largest that will fit without body modifications 13.4" Disc (F), 11" Drum (R) 4586 Volkswagen ID4 Pro (RWD) 2021 Single motor, RWD Largest that will fit without body modifications Largest that will fit without body modifications 13.4" Disc (F), 11" Drum (R) 4776 Volkswagen ID4 Pro (AWD) 2021 Dual motor, AWD Largest that will fit without body modifications Largest that will fit without body modifications 14.1" Disc (F), 11" Drum (R) 4999 Volkswagen ID4 Pro S(RWD) 2021 Single motor, RWD Largest that will fit without body modifications Largest that will fit without body modifications 13.4" Disc (F), 11" Drum (R) 4869 Volkswagen ID4 Pro S(AWD) 2021 Dual motor, AWD Largest that will fit without body modifications Largest that will fit without body modifications 14.1" Disc (F), 11" Drum (R) 5082 Volkswagen ID4 Pro S Plus(RWD) 2021 Single motor, RWD Largest that will fit without body modifications Largest that will fit without body modifications 13.4" Disc (F), 11" Drum (R) 4869 Volkswagen ID4 Pro S Plus(AWD) 2021 Dual motor, AWD Largest that will fit without body modifications Largest that will fit without body modifications 14.1" Disc (F), 11" Drum (R) 5082 Tesla Model 3 RWD 2017- Single motor, RWD Largest that will fit without body modifications Largest that will fit without body modifications 12.6" Disc (F), 13.2" Disc (R) 4037 Tesla Model 3 Long Range RWD 2017- Single motor, RWD Largest that will fit without body modifications Largest that will fit without body modifications 12.6" Disc (F), 13.2" Disc (R) 4066 Tesla Model 3 Long Range AWD 2017- Dual motor, AWD Largest that will fit without body modifications Largest that will fit without body modifications 12.6" Disc (F), 13.2" Disc (R) 4209 Tesla Model 3 Performance AWD 2017- Dual motor, AWD Largest that will fit without body modifications Largest that will fit without body modifications 14.0" Disc (F), 13.2" Disc (R) 4229 Tesla Model S AWD 2017- Dual motor, AWD Largest that will fit without body modifications Largest that will fit without body modifications 15.0" Disc (F), 14.4" Disc (R) 4735 Tesla Model S Plaid AWD 2017- Dual motor, AWD Largest that will fit without body modifications Largest that will fit without body modifications 15.0" Disc (F), 14.4" Disc (R) 4951 Tesla Model X AWD 2016- Dual motor, AWD Largest that will fit without body modifications Largest that will fit without body modifications 14.0" Disc (F), 14.4" Disc (R) 5423 Tesla Model X Plaid AWD 2016- Dual motor, AWD Largest that will fit without body modifications Largest that will fit without body modifications 14.0" Disc (F), 14.4" Disc (R) 5323 Tesla Model Y Long Range RWD 2020- Single motor, RWD Largest that will fit without body modifications Largest that will fit without body modifications 14.0" Disc (F), 13.2" Disc (R) 4329 Tesla Model Y Long Range AWD 2020- Dual motor, AWD Largest that will fit without body modifications Largest that will fit without body modifications 14.0" Disc (F), 13.2" Disc (R) 4538 Tesla Model Y Performance AWD 2020- Dual motor, AWD Largest that will fit without body modifications Largest that will fit without body modifications 14.0" Disc (F), 13.2" Disc (R) 4573
The Touring Committee has surveyed the active membership regarding the proposal to change the camber limit in T2, T3 and T4. The original rule, setting the limit to 3.5 degrees, has been in effect as the classes evolved. As time goes on and production cars has become more complex, the average operating life of Touring cars has increased. Members are building cars and expecting them to last 10 years or more. The TAC believes that the 3.5-degree camber limit, much like bolt in roll cages, should be a thing of the past. Survey Results- The survey was a simple, containing 1 question: “Are you in favor or removing the camber limits in T2, T3 and T4? Yes or No.” There were 130 respondents. A majority of respondents (73.85%, 96 people) were in favor of removing the limit. A minority of
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respondents (26.15%, 34 people) were not in favor of removing the limit. There were a variety of comments. Detractors mentioned; rules creep, performance parts cost, and effects to BOP. Proponents mentioned; increased tire life, and decreased long-term operating expense. With inaccuracies in tech, many members have expressed frustration with the buffer they needed to feel safe at tech inspection. Interpretation- By removing the camber limit, racers can find an optimal setting that prolongs the life cycle of the most expensive wear item on the car, the tires. In many cases, this optimal setting may be only a few tenths off of 3.5 degrees. The Touring rules already allow various means to achieve camber, including; eccentric bushings, eccentric bolts, slotted top hats, shims, and adjustable toe links. Some cars have individual spec line allowances if camber cannot be achieved. It is the intention of the Touring Committee to launch the new rule as of January 1, 2026. This provides ample time for members to request spec line allowances to adapt to the change. Remember, current camber-related allowances tend to be the most affordable and basic options available. Future allowances would follow this trend. In GCR, Section 9.1.9.2.D.5.a. Suspension Adjustments, change as follows: "1. T2-T4: (Effective 01/01/2026) A maximum of 3.5 degrees of negative camber is allowed on front and rear suspensions. Spec line part(s) may not be modified to increase caster and camber. Strut suspensions may adjust camber and caster by the use of eccentric bushings, eccentric bolts (crash bolts) at the strut-to-spindle, and/or by use of slotted adjustment plates at the top of the strut mounting plate. If upper strut slotted adjustment plates are used, they shall be located on existing chassis structure, utilizing the unmodified manufacturer’s original bolt holes and may not serve as reinforcement for that structure. Slotted adjustment plates (strut camber plates) may incorporate a single spherical bearing (spherical bushing) and a ball thrust bearing per strut tower. On other forms of suspension, camber and caster adjustment may be achieved by the use of shims and/or eccentric bushings. Adjustable toe links with spherical bearings are permitted and may serve no purpose other than adjusting toe angle. Spherical bearings/bushings are not permitted in T2-T4 except for the specific examples listed in the class rules or vehicle spec line.”
Thank you for your letter. The TAC does not wish to allow the BRZ/FRS to utilize an engine from a different generation of the car. This practice is consistent with the Super Touring classes.
Thank you for your letter. The committee agrees that we'd like to keep creep to a minimum. Recent changes have been made to the category rules that we hope will decrease operating costs or improve safety. Recent changes to improve cooling are intended to improve engine longevity. The caliper allowance was intended to target T2 and T3 cars that did not have a performance caliper allowance. Most contenders already had some variation of a race-quality caliper on their spec line. We felt it important to offer that safety and durability to the remaining spec lines. Over time, 4 piston options have decreased in lieu of 6-piston offerings. By making it a category rule, we won't be burdened by discontinued or unavailable parts moving forward. There are two topics that could be regarded as "creep" that we are currently working on. We have been asked to consider 1) removing the camber limit rule, and 2)allowing adjusters on shocks in T4. We requested surveys be sent to members
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to be sure that this is what we all want before we make a decision.
Allow T3 2005-2010 Mustang GT 4.6 V8 to use Coyote 6speed
In GCR, Section 9.4.D.1., change as follows: "(Effective 4/1/25) 1. Improved Touring, Spec Miata, B-Spec, and C-Spec, T2, T3 and T4 classes –The roll cage must attach to the vehicle structure within the passenger compartment in a minimum of 6 points and a maximum of 8 points, maximum of 12 points for T2, T3 and T4, as specified in these rules. T2 and T3 only - Up to an additional 6 mounting points may be used with a 100# pound penalty. These include, but are not limited to, A-Pillar, B-Pillar, Roof, Rocker, but may not extend past the fire wall. The roll cage may not pass through any structural member, including the firewall, except Miata rear main hoop braces may pass through the package tray. Seam welding is not permitted in T2, T3 and T4."
In GCR, Section 9.1.9.2.D.8.a., add the following: "9. OEM fog lights may be removed. The resulting hole may be directed to brake ducts or coolers, any resulting hole not used for cooling must be covered."
Thank you for your letter. The touring committee believes that the concept of making automatic transmissions more appealing has merit. The TAC would like to enact the concept on a case-by-case basis. Making a wholesale change at this point, and adding multiple transmissions based on speculation is not a project that we're ready for. Adding a transmission to a spec line is a new classification and could be done throughout the year.
In GCR9.1.9.2.D.6.a., change as follows: "6. Stock replacement brake rotors may be obtained from sources other than the manufacturer provided they are the exact equivalent of the stock rotors. In T2 only - 2-piece rotors with ferrous metal rotor disks and aluminum hats are allowed, must be within 5% of OE diameter. In T3 only - 2-piece front rotors with ferrous metal rotor disks and aluminum hats are allowed, must be within 2% of OEM diameter. Drilled and slotted rotors are permitted. In T2-Performance alternative rotors, including 2 piece rotors are permitted. Rotors must be within 5% of OE diameter or a maximum diameter of 360mm. In T3- Performance alternative rotors, including 2 piece rotors are permitted with a maximum diameter of 360mm. T4- Performance alternative rotors are permitted but rotors must meet the sizes listed in the spec line."
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In GCR9.1.9.2.D.6.a., add the following: "9. Touring 2 and Touring 3 only- 4 or 6-piston performance alternative brake calipers are permitted on the front axles."
Removal of Steering Wheel Locks Not Required in Touring
Thank you for your letter. In many modern Touring cars, deactivating the steering wheel lock isn't as easy as it was in the old days. Many cars will have electronic safety systems that will not allow the car to operate unless all parts of the steering wheel lock operates exactly as designed. Naturally, there is nothing preventing you from deactivating your own. Given the redundant safety features in many modern cars, we feel that the risk of failure is very low.
Thank you for your letter. The presence of a small crack under the hard tops has been visible for few years. Any advantage the crack may have caused had been adjusted during BOP changes in the past. If the air gap is an advantage, forcing them to close it would result in a different positive adjustment.
The Touring committee is seeking opinions on whether it should be permissible to allow cabin venting via removing door/trunk seals and/or by creating a gap under a hard top.
Thank you for your letter. We like to make BOP adjustments on a car-by-car basis. We don't wish to make this change at this time. Increasing tire size this much may not actually benefit these cars as much as you think.
The Touring committee is receptive to your request, but we are still operating on very limited data. Please consider attending a HST where we can collect data for analysis.
Member hasn't replied to emails. If member is still interested in classing this car, please provide all of the information needed to complete a T2 Spec line.
Thank you for your letter. When a car is classed, the wheel diameter and width is based on the wheels that came OE on the base model of the car. In some cases, when a car has proven to be competitive on the wheel spec, it is pretty much set in stone. If a car hasn't been proven to be competitive, the committee is receptive to changing the size. Keep in mind, usually wheel and tire sizes are maximums.
Thank you for your letter. You are allowed to modify the spare tire well to install a fuel cell in that location. You cannot install it in a way that affects the exterior bodywork.
Thank you for your letter. The BOP has been established with the current allowances. If you have an issue, please explain in greater detail and request a specific part.
Thank you for your letter. We agree that the ND2 Global MX5 does not fit in T4; it is appropriately classed in T3. Under its current configuration it has set track records and has won major races in T3.
Thank you for your letter. The 350Z has been racing in the SCCA for 15 years. There have been numerous national championships won with the 350Z in this time. Kulach, Hines, Stout, Williams, and others have had great success with these cars. The knowledge to make these cars work properly is out there. We are sympathetic about your concerns, but we're afraid to open Pandora's box. Racing ABS adds complexity and cost that shouldn't be incurred in T3.
In GCR, Section 9.1.9.2.D.8.4.c., change as follows: "All of the vehicle’s doors must be able to be opened from both inside and outside the vehicle. Electric door latches may be removed and replaced with mechanical linkage. Mechanical door latch location must be marked to be visible to workers. Front doors- Inner door skin, and window hardware, may be removed to reduce weight. Front factory door bars may be removed if the roll cage adequately protects the driver. Rear doors (if equipped)- Inner door skin, factory door bars window hardware may be removed provided rear windows are securely fastened in place."
Thank you for your letter. The header, "Nissan 350Z Track/ Touring/ Standard/ Nismo (03-08)" indicates that any NISMO, Track, Touring, or standard body work from 03-08 is permitted.
Thank you for your letter. In letter 34414 in current Fastrack, we made a positive adjustment that helps this car. We will continue to monitor the car.
Thank you for your letter. Please go through the SPB rules and identify which parts and part numbers you'd like to include in the other spec line. Please submit another letter before the end of the year with specific information.
Thank you for your letter. We'd like to clarify some of the data you presented. The 2.2 liter S2000 hasn't been left unaided since 2010. It is ~145 lbs lighter, and it has been allowed 750 lb springs. After the car was raced at the 2021 Runoffs at Indianapolis, we removed a 60mm FPR that was on the car. We have not seen data on the car since that race. We appreciate the work that you put into your power:weight analysis. The problem is that you use published OE HP for class front runners. All of these cars run with TIRs or FPRs, drastically reducing their actual power. In the end BOP is based on actual race acceleration and handling data. Please bring the car out to a HST or Majors event where data is collected so we can have proper data to work with.
Thank you for your letter. When conforming to the touring category rules, the Solstice rides too high. Suspension geometry is too far off and fender clearance is too high. This issue is unique to the Solstice. This ride height allowance has been in effect for the T4 Solstice for a few years without issue. It makes sense to extend the allowance to other Solstice spec lines. Once data is collected at this height, it will be the basis for the car's BOP.
Thank you for your letter. Any car conforming to the Spec E46 spec line is welcome in T3. The inclusion of these cars were a large factor in rejuvenating T3 in the past 7 years. It races well in T3, and is competitive.
Thank you for your letter. We have had requests for the SE36. We feel that the car won't compete in T3. We also believe that the car is too old to be a new classification in the touring classes. We suggest looking into IT or ST.
Thank you for your letter. The members of the TAC are confident that the list of modifications that you presented are not necessary to compete in Touring. The intent of Touring is to allow competition in lightly modified cars. If you wish to compete with those upgrades, please explore STU.
Thank you for your letter. We don't wish to place this burden on the membership. We also believe it would be too easy to provide false information. We use many factors, aside from horsepower to perform BOP adjustments.
Thank you for your letter. The spec line specs are the basic allowances for the car. If there is an additional option in the notes, that option supersedes the specs in the spec line. In your case, the "Brembo brake kit part number 3K2.8032A" may be run in its entirety, including the 355 mm rotors.
Thank you for your letter. In letter number 33762, you requested an aftermarket intercooler for the 320i T3 and T4. An intercooler of this type has never been allowed in T4 and would set an unwanted precedent. Aftermarket intercoolers are common allowances in T3. We feel that the 320i is a better fit in T3 and would be more reliable there.
Thank you for your letter. The touring committee does not wish to change the existing 1996 M3 spec line. The touring classes require the cars to compete with specified motors. Classing the 1995 with the 1996 would contradict the engine specs. 1995 is also older than we like to see in the touring classes. We suggest that you consider STU (Super Touring Under). In that class, the 1995 M3 can compete, and it isn't required to use the original engine.
Allow replacement of plastic hose with silicone part for Audi S4
Thank you for your letter. The Spec 250z is allowed many items that give it an advantage over the other 350z spec lines. We will monitor its performance.
Wanted to Clarify the Response to Letter 33462 From January
In T3 Spec Lines, Remove Audi S4 (10-11) and Audi S4 (12-14) in its entirety: "(Effective 1/1/2024) Audi S4 (10-11) Notes- AWE part#2660-13010 permitted" "(Effective 1/1/2024) Audi S4 (12-14) Notes- AWE part#2660-13010 permitted"
competitively Class the Honda Civic Type R in Touring 3
Thank you for your letter. After reviewing the qualifying sheet and the race data collected at Sebring, we are confident that this spec line is competitive. We will keep watching it.
Thank you for your letter. We are watching this spec line closely and are prepared to BOP it if needed. At this point, we'd like to see more recent data.
Thank you for your letter. Recent parts allowances should improve the reliability of the camper adjustments on certain cars. The current rules for touring allow 3.5 degrees and the appropriate parts to achieve it. If we remove the camber limit, we'd start a situation where more and more suspension allowances would be needed. In that scenario, suspension parts would become BOP adjustments.
Thank you for your letter. We do not recommend allowing headlights to be removed. We suggest sourcing aftermarket alternative headlights that are similar in appearance. Having headlights is at the core of showroom-based racing. Allowing one car to remove their headlights would start a wave of similar requests.
Request to classify the new Civic SI FE1 factory race car
Thank you for your letter. We recommend meeting up with other friendly racers at an event and see what advice they can give you in person. They'll have a better idea of where you can make improvement. They'll have an opportunity to look over your car and suggest setup issues. They may also have a chance to remark on your driving, marks and consistency. Good luck, have fun.
Thank you for your letter. The Spec Boxster and Spec E46 spec lines were added to T3 to encourage those cars to cross over from other series. For this to work, we need to ensure that our spec line mirrors their rules exactly. Maintaining a GCR spec line in this manner would be time consuming and prone to errors. That is why we opt to reference their rules and review them periodically. For your reference, we have attached links to their 2022 rules. SPB https://pcaclubracing.org/wp-content/uploads/2022/01/2022-PCA-Club-Racing-Rule-Book.pdf SE46 https://nasa-assets.s3.amazonaws.com/document/document/23463/2022_SE46_Rules.pdf
Thank you for your letter. The rules imply, in this case, that toe links with spherical bearings are allowed. Other spherical bearings are not allowed.
In GCR, Section 9.1.9.2. Touring (T2-T4) Category, change as follows: "9.1.9.2 TOURING (T2-T4 5) CATEGORY" "Touring car eligibility: Cars are eligible for the class they are listed with a specification line and with the specific allowances permitted. In addition T2-T4 5 cars may race one class up in touring classes above their specification line class as long as they are a legal T2. T5 is a Regional only class." In GCR, Section 9.1.9.2.D.1.e.1., change as follows: "Any overbore up to .020” permitted T2- T4 5 with +30 lbs. penalty." In GCR, Section 9.1.9.2.D.5.a.1., change as follows:
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"T2-T4 5: A maximum of 3.5 degrees of negative chamber is allowed on front and rear suspensions. Spec line part(s) may not be modified to increase caster and camber. Strut suspensions may adjust camber and caster by the use of eccentric bushings, eccentric bolts (crash bolts) at the strut-to-spindle, and/or by use of slotted adjustment plates at the top of the strut mounting plate. If upper strut slotted adjustment plates are used, they shall be located on existing chassis structure, utilizing the unmodified manufacturer’s original bolt holes and may not serve as reinforcement for that structure. Slotted adjustment plates (strut camber plates) may incorporate a single spherical bearing (spherical bushing) and a ball thrust bearing per strut tower. On other forms of suspension, camber and caster adjustment may be achieved by the use of shims and/or eccentric bushings. Adjustable toe links with spherical bearings are permitted and may serve no purpose other than adjusting toe angle. Spherical bearings/bushings are not permitted in T2-T4 5 except for the specific examples listed in the class rules or vehicle spec line." In GCR, Section 9.1.9.2.D.5.b.2., change as follows: "The make of shock absorber may be changed. Their number, perch location(s), system of attachment, and attachment points shall not be altered. Their type (tube vs. lever, etc.) shall not be altered. The interchange of gas and hydraulic shock absorbers is permitted. T4 and T5 only: Unless a specification line allows adjustable shocks, adjustable shocks are prohibited. Any non- adjustable shock absorber is allowed. Adjustable shocks that are retrofitted into non- adjustable appearance are prohibited. Removing adjusters or knobs from adjustable shocks is prohibited. Commercial part numbers for shocks must be visible and unaltered. Shocks must be installed in the original mounting locations. Remote reservoirs are not permitted. Threaded shock bodies or adjusters may be used. Shocks can serve no purpose other than to damp motion." In GCR, Section 9.1.9.2.D.5.b.2.c., change as follows: "T3 and, T4 and T5 only: minimum ride height is 4.5” inches." In GCR, Section 9.1.9.2.D.5.b.2.d., change as follows: "T2-T4 5 only: Cars with alternate spring allowance in spec line, may use adaptors, and adjustable perches to allow fitment of springs." In GCR, Section 9.1.9.2.D.7.a., add the following and renumber: "3. T5 only: (unless specified on spec line) Any aftermarket wheel allowed." In GCR, Section 9.1.9.2.D.7.b., add as follows: "T5 has a maximum tire size of 225/45." In GCR, Section 9.1.9.2.D.10.c., change as follows: "All cars shall have, as a minimum, a fire extinguisher meeting the specifications of GCR Section 9.3 Fire System. Touring 2 cars must have a fire system installed. Touring 3, and Touring 4 and Touring 5 automobiles may be equipped with a fire system meeting the specifications of GCR Section 9.3 Fire System." In GCR, Section 9.1.9.2.E., change as follows: "Touring Category Classes are as follows: T2, T3, and T4 and T5." In Touring Spec Lines, create new T3 classification as follows:
A specification table follows in the original; it is not shown here.
Thank you for your letter. We are sorry about the added expense. The only reason that the BRZ is given a wing, which is unique in T3, is that the BRZ TS came with that specific one. Requiring the OEM part is consistent with all other wings that exist in T3.
Thank you for your letter. The Touring Committee believes that the Cayman would be an overdog in T3, and is capable of being competitive in T2. Please consider asking for allowances that would benefit the current spec line.
Request allowance for aftermarket suspension components
Thank you for your letter. The ad promotes the car as something other than a T3 car, then provides the power numbers- "Car is eligible in SCCA, NASA, Trans Am GT, WRL and AER. Dyno shows 451 ft pounds of torque and 323 horsepower." That HP number is not the power in T3 trim, with the 34mm restrictor. To support this point using Indy Runoffs data; the Ecoboost Mustang had a 6 mph disadvantage to the 2nd place Z4. This data comes from SCCA confidential data as well as the official race time cards.
Thank you for your letter. The committee does not wish to allow the Koni on the Mazda 3. There are other available off-the- shelf options for the Mazda 3 at this time.
Thank you for your letter. Camber can be adjusted by using offset bushings. The toe links are allowed solely for toe adjustment. If you want a specific camber arm, they are considered on a case-by-case basis. Please provide a part number.
Consider a Spec Tire for Balance of Durability, Speed and Expense
Thank you for your letter. Touring has always allowed DOT tires that are approved for the speed rating of the class. There are other brands that are available for you to try. The majority of Touring competitors are not interested in limiting their tire choices.
Thank you for your letter. Please see recent rules change- letter #31564, in January 2022 Fastrack. "In T3 only - 2-piece front rotors with ferrous metal rotor disks and aluminum hats are allowed, must be within 2% of OEM diameter."
Thank you for your letter. The performance adjustments published are the result thoughtful consideration, data collection and analysis from all of the touring races throughout the 2021 season. Decisions are not based solely on a single event but all touring races throughout every region. No BOP decision is made quickly or without careful consideration. We ask that you bring out your cars and race. Without data on the adjusted cars further corrections can't be made. Please participate. The more data we get, the better our corrections will be.
Thank you for your letter. The performance adjustments published are the result thoughtful consideration, data collection and analysis from all of the touring races throughout the 2021 season. Decisions are not based solely on a single event but all touring races throughout every region. No BOP decision is made quickly or without careful consideration. We ask that you bring out your cars and race. Without data on the adjusted cars further corrections can't be made. Please participate. The more data we get, the better our corrections will be.
Thank you for your letter. The performance adjustments published are the result thoughtful consideration, data collection and analysis from all of the touring races throughout the 2021 season. Decisions are not based solely on a single event but all touring races throughout every region. No BOP decision is made quickly or without careful consideration. We ask that you bring out your cars and race. Without data on the adjusted cars further corrections can't be made. Please participate. The more data we get, the better our corrections will be.
Thank you for your letter. The performance adjustments published are the result thoughtful consideration, data collection and analysis from all of the touring races throughout the 2021 season. Decisions are not based solely on a single event but all touring races throughout every region. No BOP decision is made quickly or without careful consideration. We ask that you bring out your cars and race. Without data on the adjusted cars further corrections can't be made. Please participate. The more data we get, the better our corrections will be.
The use of Performance Alternative ECUs is being considered in Touring. As time goes on, it is becoming harder and harder to overcome or modify the programming that comes in modern cars. To combat this, the TAC is considering allowing the use of aftermarket ECUs in one of 2 ways: 1-On a case-by-case basis- Problematic cars could be given an ECU allowance on the spec line. This would give us the ability to adjust parity by adjusting the spec line. 2-As a category rule with a penalty- We could allow aftermarket ECUs on all Touring cars with an appropriate penalty for choosing to use it.
Thank you for your letter. We suggest choosing the smaller engine option, without the supercharger. The car would fit nicely in T3 with some performance allowances. If you're interested in that path, please provide a letter with the proper VTS sheets so we can create a spec line.
Thank you for your letter. When comparing race results, it looks like the Spec Boxster is faster than T4. There are also some allowances that don't fit with our definition of T4: Flywheels, lighter batteries, accusump, adjustable shocks, no ride height limit, 8.5" wide wheels, etc. Because of this, the TAC has favored leaving it in T3 and allowing items like better tires to speed it up.
Feedback to May Fastrack item: 29428 (T2-T4 Swaybars) Opposes
Thank you for your letter. Although your suggestion would help the platform make power, it is not within the scope of the Touring classes. Additionally, such a change would create a situation where every driver using that spec line would need to convert to E85 to be competitive. Recent changes were made to the class that should slow down leaders.
Thank you for your letter. The 1995 has a smaller displacement than the 1996. The spec line that you're referring to actually exists to allow a BMWCCA class in our T3 class. It isn't a spec line that we can alter. That said, the 1995 is too old to be added to the Touring category. Many of these cars find a home in STU or one of the IT classes.
Thank you for your letter. The performance adjustments published are the result of thoughtful consideration, data collection, and analysis from all of the touring races throughout the 2021 season. Decisions are not based solely on a single event but all touring races throughout every region. No BOP decision is made quickly or without careful consideration. We ask that you bring out your cars and race. Without data on the adjusted cars further corrections can't be made. Please participate. The more data we get, the better our corrections will be. Please see some recent changes in the GCR that include some of your requests.
Effective 03/01/2022 In GCR, Section 9.1.9.2.D.1.i., add the following: "10. Intercoolers- If an alternative intercooler is allowed on a vehicle's spec line, it must conform to the following: It must fit in the original location. It must require no body or structural modifications to install. No new openings may be created to direct air to the intercooler. If an intercooler is allowed, the appropriate hoses to attach it are also permitted provided that they serve no other purpose than the OE hoses."
Effective 03/01/2022 In T2-T4 Spec Lines, Section 9.1.9.2.D.6.a.6, add the following: "In T3 only - 2-piece front rotors with ferrous metal rotor disks and aluminum hats are allowed, must be within 2% of OEM diameter."
Thank you for your letter. The Committee has not seen either of these cars on the track. Please bring one of them out so we can collect data prior to making a change.
Please Adjust Max Tire Size for BMW 330i/Ci (01-06)
Thank you for your letter. The current BOP is very close. This change will throw that off. Some cars can achieve camber and others are very limited. 3.5 degrees is attainable by most cars under the current bushing and top hat rules.
Thank you for your letter. The committee reached out to the letter writer. He was just fishing for info. We asked him to be more specific about his request. He seems to be considering a 2022 BRZ instead.
Effective 03/01/2022 In GCR section 9.1.9.2.D.5.b.2., Springs, Anti-Roll bar(s), and Shock Absorbers, add section as follows" "e. Cars with inboard rear springs are permitted to relocate the spring to the shock."
In GCR, Section 9.1.9.2.D.6.a., add the following: "8. Brake vacuum reservoirs sized 0.50 gallons or smaller are permitted. The port or fitting at the vacuum source may not be modified, enlarged or relocated. The vacuum reservoir and brake booster must be a closed system."
In GCR, Section 9.1.2.2.D.1.f., add the following: "6. The oil pan and oil pickup may be baffled, modified, or replaced. Using safety wire or a similar method to secure the drain plug is allowed and encouraged."
Thank you for your letter. This car was recently classified in T3 and we still haven't seen it on the track. Please bring it out and provide data. Please see upcoming letter #30590 which will reference 2 piece rotors.
Weight Change Request for Nissan 350Z (03-08) Spec Z DE Motor
Thank you for your letter. Not all cars in the touring meet the intent. The performance of this car falls within the scope of T3 and is seen as a benefit to the class.
Consider changes to sway bar rules for touring T2-T4
The Touring committee is considering making a change to the sway bar philosophy in T2, T3 and T4 for the 2022 racing season. Currently aftermarket sway bars are only allowed on a case-by-case basis on individual spec lines. We are considering allowing aftermarket sway bars on all touring cars in the category rules. Please write in to provide input, thank you.
Thank you for your letter. The car is currently classed in T2 and T3, and the committee has data that indicates that the cars are competitively equipped.
Follow up to SCCA Touring Letters nos. :30153 ; 30144 ; & 29797
In GCR, Section 9.1.9.2.D.8.a., add the following: "8. Exclusively for engine radiator cooling purposes, it is permitted to remove the outermost non-metallic webbed false grill openings that are closed in mesh style factory grill openings. Maximum allowable increase in grill opening area is 16 square inches. The modified grill opening mesh shape and contour must be retained as delivered from the manufacturer. This allowance does not permit modification to brake or intercooler grill openings. Note - It is the competitor's responsibility to be able to verify that 16 or fewer square inches have been removed."
Thank you for your letter. The Global MX5 is a spec-line car, meaning that it is allowed to run the items as allowed in the class that it was built for. For this car, it is allowed many other things that are not normally allowed in T3. Data results show that the current configuration is competitive.
Thank you for your letter. We would be excited to see this car on the track in T2. If it were classed in T2, it would likely be classed with the following rules- 3400 lbs, no FPR, 295 tires, 18 x 10 wheels, stock brake size. If you are interested in going ahead with the build, please provide the information needed to fill in the remaining portions of the spec line. Also, be sure to request specific allowances for the "notes" section.
The Touring committee is considering making a change to the sway bar philosophy in T2, T3 and T4 for the 2022 racing season. Currently aftermarket sway bars are only allowed on a case-by-case basis on individual spec lines. We are considering allowing aftermarket sway bars on all touring cars in the category rules. Please write in to provide input, thank you.
Thank you for your letter. The content of this letter was reviewed and changes pertaining to this spec line will be addressed in the T3 class BOP letter.
Request for Restriction and Weight Help - Nissan 350z 2007
Thank you for your letter. Based on recent data analysis, it appears that the 350Z HR is competitive as classed. Also note, the Mustang that you referenced was adjusted.
Thank you for your letter. Recent data was reviewed from the Runoffs and other premier races. That data shows that the 350Z HR classification is competitive. We will continue to monitor the BOP of the class.
Thank you for your letter. The Touring Committee has made several attempts to contact the letter writer to gain understanding of the request and work with them to find a compliant solution however the writer has not responded
In T3 Spec Lines, Honda S2000 (all) (00-09), add to beginning of Notes as follows: "Any OEM or aftermarket hardtop permitted that retains the OEM roof silhouette (if a hardtop is used, latches shall be replaced with positive fasteners)."
Request to change the T3 Solstice specs to be competitive
Thank you for your letter. It appears that the requested gear ratio was only available on cars with an automatic transmission. We do not recommend a change at this time.
Thank you for your letter. We have made changes to the class and will continue to monitor the performance. Please see the response to letter #27781 in this Fastrack's Technical Bulletin for your second concern.
In T2-T4, GCR section 9.1.9.2.D.8.a.6, add the following: "Air jacks are permitted, but no air source may be carried on board. Installation of such may not reinforce the chassis or add another attachment point to the roll cage structure. It is permitted to attach one or more plates, or pads, under the car to provide for jacking of the car, provided they serve no other purpose. It is prohibited to install any kind of device, which protrudes from the rocker panel or side of the car."
Thank you for your letter. The ND1 and ND2 Global MX5 Cup cars as classified in T3 must meet all MX5 Global Cup rules. It is permitted to update an ND1 Global MX5 car to the ND2 specifications. No other modifications can be made other than as identified on the spec line. CLUB RACING BOARD
In T2, Nissan 350Z Track/ Touring/ Standard/ Nismo Spec Z (03-08), add to notes as follows: "72125 and 72123 are allowed." In T3, Nissan 350Z Track/ Touring/ Standard/ Nismo (03-08), add to notes as follows: "72125 and 72123 are allowed." In T3, Nissan 350Z Track/ Touring/ Standard/ Nismo (03-08) Spec Z, add to notes as follows: "72125 and 72123 are allowed." In T3, Nissan 370Z (09-16) /370Z NISMO Edition (09-13), add to notes as follows: "72125 and 72123 are allowed."
In T2, BMW E92 M3 (08-14), add to notes as follows: "OEM brake ducts may be used in the factory configuration and may serve no other purpose than the factory intent."
Supports Changing Cage Mounting Points to Minimum Number
In GCR section 9.4.E.1, add new section as follows: "Improved Touring, Spec Miata, B-Spec, T2, T3 and T4 classes –The roll cage must attach to the vehicle structure within the passenger compartment in a minimum of 6 points and a maximum of 8 points, maximum of 12 points for T2, as specified in these rules. T2 and T3 only - Up to an additional 6 mounting points may be utilized with a 100# penalty. These include, but are not limited to, A-Pillar, B-Pillar, Roof, Rocker, but may not extend past the fire wall. Roll cage may not pass through any structural member, including the firewall, except Miata."
Allow touring 2 and super touring cages in touring
In T3, Mazda Mazdaspeed3 (07-09), make changes to the notes as follows: "35mm Turbo Inlet restrictor required. Rear sway bar max 42mm (body and suspension mounting same as OEM. Any spring up to a maximum spring rate of 800 pounds may be used. Damond Motorsports Mazdaspeed3 caliper bushing kit allowed F/R." In T3, Mazda Mazdaspeed3 (10-13), make changes to the notes as follows: "35mm Turbo Inlet restrictor required. Rear sway bar max 42mm (body and suspension mounting same as OEM. Any spring up to a maximum spring rate of 800 pounds may be used. Damond Motorsports Mazdaspeed3 caliper bushing kit allowed F/R."
In T2, Audi S4 (12-14), make changes to the notes as follows: "S tronic transmission permitted at 3650 lbs. Ratios: 3.88, 2.24, 1.56, 1.18, 0.92, 0.75, 0.62. Max spring rate 1100#/in. front and rear. F sway bar 30mm, rear sway bar 24mm SPC front upper arms 81360. Brembo brake Kit PN: 3K2.8032A permitted. Q5 OEM brake calipers, part #8R0615107G and 8R0615108G permitted. 2-Piece rotors max diameter 345 mm permitted, B Separate coolant reservoir for the water to air intercooler permitted. 60mm flat plate restrictor required." In T2, Audi S5 (13-14), make changes to the notes as follows: "S tronic transmission permitted at 3650 lbs. Ratios: 3.88, 2.24, 1.56, 1.18, 0.92, 0.75, 0.62. Max spring
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rate 1100#/in. front and rear. F sway bar 30mm, rear sway bar 24mm SPC front upper arms 81360. Brembo brake Kit PN: 3K2.8032A permitted. Q5 OEM brake calipers, part #8R0615107G and 8R0615108G permitted. 2-Piece rotors max diameter 345 mm permitted, Separate coolant reservoir for the water to air intercooler permitted. 60mm flat plate restrictor required." In T3, Audi S4 (12-14), make changes to the notes as follows: "40mm flat plate restrictor required. S tronic transmission permitted at 3725 lbs. Ratios: 3.88, 2.24, 1.56, 1.18, 0.92, 0.75, 0.62. Max spring rate 800#/in. front and rear. F sway bar 30mm, rear sway bar 24mm SPC front upper arms 81360. Brembo brake Kit PN: 3K2.8032A permitted. 2-Piece rotors max diameter 345 mm permitted, 19x10 wheels allowed + 100 lbs. Q5 OEM brake calipers, part #8R0615107G and 8R0615108G permitted. Brake dust shields L&R part #3D0615311C and #3D0615312C are permitted. Air guide L&R part #3D0615447E and #3D0615448E are permitted." In T3 Audi S5 (13-14), make changes to the notes as follows: "40mm flat plate restrictor, 800 max F&R spring rate. F sway bar 30mm, rear sway bar 24mm SPC front upper arms 81360 S tronic transmission permitted at 3725 lbs. Ratios: 3.88, 2.24 ,1.56, 1.18, 0.92, 0.75, 0.62. Brembo brake Kit PN: 3K2.8032A permitted. 2-Piece rotors max diameter 345 mm permitted, 19x10 wheels allowed + 100 lbs. Q5 OEM brake calipers, part #8R0615107G and 8R0615108G permitted. Brake dust shields L&R part #3D0615311C and #3D0615312C are permitted. Air guide L&R part #3D0615447E and #3D0615448E are permitted." Note from the CRB: Please run this car prior to making any more requests.
Please submit the following What Do You Think for member feedback: The Club Racing Board and Touring Advisory Committee are considering a Touring category rules change to allow roll cages with additional chassis attachment points. This would be accomplished by specifying a minimum number of attachment points only. Currently T2 is limited to a maximum of 12 chassis attachment points and T3-T4 are limited to 8 attachment points. Many, if not most, other sanctioning bodies specify a minimum number of attachment points only. This limits cross participation with touring. A concept under consideration is to phase in minimum attachment point cages for T2 and T3. Starting in
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2020 cars exceeding the current number of attachment points will be legal with a weight penalty of 1.5% to the base weight of the car. Data can be collected and, if appropriate, the weight penalty can be adjusted to correct the BoP. Starting in 2021 the weight penalty can be removed, and the rules rewritten to specify a minimum number of attachment points. Please share your opinion on a Touring category rule change for additional chassis/cage attachment points in T2/T3 at crbscca.com.
Request to reduce 2004 BMW M3 restrictor vs. weight
Thank you for your letter. The Solstice GXP has been classed in T3 for years. Minor adjustments were made to the existing spec line prior to 2020. The T3 spec line is being closely monitored.
Thank you for your request. Effective 1/1/19, please make the following changes to the Touring category rules: 9.7.9.2.D.1.i Other Engine Components 8. Aftermarket, OEM-equivalent piston rings and apex seals are allowed.
Thank you for your request. Effective 1/1/19, in T3, BMW Z4 3.0L (03-04), add to final drive and Notes as follows: 3.07 or 3.46 “Springs to 600lb F 650lb R allowed. Swaybars up to 27mm F and up to 24mm R allowed.”
Thank you for your request. Effective 1/1/19, in T3, Nissan 370Z (09-16) / 370Z NISMO Edition (09-13), add to the Notes as follows: “Any swaybar up to 37mm front and up to 30mm rear allowed.”
Effective 1/1/19, in T3, Honda S2000 (all) (00-09), make changes to wheel size and Notes as follows: 17 x 8.5 17 x 9.0 “Factory bolt-in roll bar may be removed to facilitate the installation of the required roll cage. Comptech differential housing part #550-040 allowed. Springs and sway bars from 2008 S2000 CR allowed. CR front fascia, rear deck lid, and wing are permitted. Spring rate 600 750 lbs/in F/R maximum allowed. Updating and backdating of flywheels between engine types is prohibited. 2.2L engine 54mm 60mm flat plate restrictor required. Any
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swaybar up to 33mm front, up to 30mm rear allowed.”
Thank you for your letter. The CRB does not recommend this. Multiple recent changes have been made in T3 class. Please bring the car out with recent changes applied so we can monitor the performance and collect data. 4.. #25928 (David Muramoto) Request for 275 Tire on Nissan 350Z and 370Z Thank you for your request. The CRB does not recommend this at this time. Recent changes have been made to T3 including weight reductions to both of these models.
Request to Allow T3 05-10 Mustang GT to Alter Spring Rate.
Thank you for your request. Combining the spec lines is not recommended. However, effective 1/1/19, please make the following changes to T3: Ford Mustang Mach I (03-04) Add to Notes: “Steeda 555-2002 rear control arms are allowed. Max spring rate of 900 lbs/in allowed front and rear. Springs may be mounted as a “coil over” configuration. Steeda front sway bar 555- 1094 allowed. Energy suspension 4.3140G control arm bushings permitted.”
Thank you for your request. Effective 1/1/19, please make the following change to Touring 2-4: 9.1.9.2.9.d Interior Modifications 7. The driver’s side floor pan may be modified to accommodate larger/taller drivers. All modifications shall be contained between the transmission tunnel, driver’s side rocker, rear bulkhead. The modification shall not extend below the factory floor stiffener/frame rail. The steel used in the modification shall be no thinner than .058”. All modifications shall be welded in place. This modification shall serve no other purpose other than seating position.
Thank you for your letter. The overwhelming response was in favor of 3.5 degrees of camber. This was recommended in letter #25680 and clarifying language was also added.
Spherical Bearings/Bushings Introduced By Use of Slotted
Adjuster Please make the following changes to the Touring class rules sections (Effective 1/1/19): Change 9.1.9.2.D.5.a.1: 5. Suspension a. Suspension Adjustments 1. T2-T4: A maximum of 3.0 3.5 degrees of negative chamber is allowed on front and rear suspensions. Spec line part(s) may not be modified to increase caster and camber. Strut suspensions may de-camber wheels adjust camber and caster by the use
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of eccentric bushings, eccentric bolts (crash bolts) at the strut-to-spindle, and/or by use of slotted adjusters adjustment plates at the top of the strut mounting plate. If upper strut slotted adjustment plates are used, they shall be located on existing chassis structure, utilizing the unmodified manufacturer’s original bolt holes and may not serve as reinforcement for that structure. Slotted adjustment plates (strut camber plates) may incorporate a single spherical bearing (spherical bushing) and a ball thrust bearing per strut tower. On other forms of suspension, camber and caster adjustment may be achieved by the use of shims and/ or eccentric bushings. Slotted ball joints on A-arms on double wishbone cars may be used for camber adjustment only. Adjustable toe links with spherical bearings are permitted and may serve no purpose other than adjusting toe angle. Spherical bearings/bushings are not permitted in T2-T4 except for the specific examples listed in the class rules or vehicle spec line. adjustable toe links that may serve no purpose other than adjusting toe angle, unless specifically permitted on the vehicle spec line.
Thank you for your letter. The CRB does not recommend this. There has been continuity for T1 and T2 for +100lbs additional weight for 380mm brake package upgrades.
Thank you for your letter. The CRB does not recommend this. These 2 models are on separate spec lines by design. Competitors are reminded they may not update and backdate across spec lines. If a competitor changes from a V6 model to a V8 model, 100 percent of everything on the vehicle must be converted to the spec line model and be compliant with GCR spec line, the manufacture manual and specifications.
Thank you for your request. Please make the following changes in Touring 3 (effective 1/1/19): 07-09 Solstice GXP weight: 3250 3200 Notes: 32mm 35mm TIR required. Hahn HIC-1150 or Dejon FIC-SSA Intercooler allowed. Maximum spring rate 800 lb/inch for coil over type spring permitted. Any aftermarket 4-piston caliper allowed.
The CRB is soliciting feedback from current T3 competitors to dual classify the as currently classified T2 SMG (Spec Mustang) at the appropriate weight and restrictor, into the T3 class. Please provide your feedback through crbssca.com.