One row per driver and car (a driver who changed cars has a row for each). Each cell is that driver's best in that car across the selected events, with the session it was set in. Best 5-lap stint is the mean of the driver's quickest five consecutive race laps, and consistency is how far their median race lap sat behind their best in that race (small is a driver who does it every lap); both come from the race with the best stint. The fastest in each column is purple, and a car whose best lap is more than 115% of the fastest in its class is greyed (marked ">115%" beside the driver) and left out of the colour scale. Click a column to sort, a row to highlight it.
Theoretical lap is the sum of the best sectors, whichever laps they came from, and never slower than the best lap (where a car's fastest laps were recorded without sector times, its best lap is used). The 115% mark is about the car's best lap only: a car whose best lap is within 115% of the fastest in its class is never marked. Greyed sectors with no theoretical lap mean the sector times on file do not add up to a believable lap. Letters refer to the events above; Q is qualifying, R a race.
Sectors
S1 SF → IM2
S2 IM2 → IM3
S3 IM3 → SF
SPd In → Out 0.02 mi
Sectors are numbered in lap order from start/finish, whatever each event's timing called them; the loop names are SCCA timing's.
By car
Car
Class
Drivers
Lap
Qual
Race
Trap
S1
S2
S3
Chevrolet Corvette
T2
3
1:50.659Kurt Rezzetano
1:50.659Kurt Rezzetano
1:51.552Kurt Rezzetano
124.2David Sanders
47.823Kurt Rezzetano
36.036Kurt Rezzetano
26.773Kurt Rezzetano
Chevrolet Corvette
T2
1
1:50.659Kurt Rezzetano
1:50.659Kurt Rezzetano
1:51.552Kurt Rezzetano
120.9Kurt Rezzetano
47.823Kurt Rezzetano
36.036Kurt Rezzetano
26.773Kurt Rezzetano
Chevrolet Corvette Z06
T2
1
1:53.567David Sanders
1:53.625David Sanders
1:53.567David Sanders
124.2David Sanders
48.294David Sanders
37.024David Sanders
27.082David Sanders
Chevrolet Corvette C6
T2
1
1:55.197Joe Aquilante
1:55.197Joe Aquilante
1:57.815Joe Aquilante
123.2Joe Aquilante
49.754Joe Aquilante
38.164Joe Aquilante
27.271Joe Aquilante
Ford Mustang
T2
2
1:50.708Marshall Mast
1:50.708Marshall Mast
1:52.702Marshall Mast
121.8Marshall Mast
47.590Marshall Mast
36.338Marshall Mast
26.780Marshall Mast
Ford Mustang
T2
1
1:50.708Marshall Mast
1:50.708Marshall Mast
1:52.702Marshall Mast
121.8Marshall Mast
47.590Marshall Mast
36.338Marshall Mast
26.780Marshall Mast
Ford Mustang T2
T2
1
1:58.805Andrew Wickline
1:59.350Andrew Wickline
1:58.805Andrew Wickline
116.9Andrew Wickline
50.942Andrew Wickline
39.045Andrew Wickline
28.407Andrew Wickline
Porsche 997.1
T2
2
1:51.544Mark Boden
1:51.544Mark Boden
1:52.268Mark Boden
124.5Mark Boden
48.078Mark Boden
36.481Mark Boden
26.560Mark Boden
Porsche 997.1
T2
1
1:51.544Mark Boden
1:51.544Mark Boden
1:52.268Mark Boden
124.5Mark Boden
48.078Mark Boden
36.481Mark Boden
26.560Mark Boden
Porsche C2
T2
1
1:54.135Thomas Herb
1:54.155Thomas Herb
1:54.135Thomas Herb
120.7Thomas Herb
48.638Thomas Herb
37.528Thomas Herb
27.346Thomas Herb
BMW E92 M3
T2
2
1:51.663Joe Koenig
1:51.663Joe Koenig
1:52.643Joe Koenig
128.3Joe Koenig
47.892Joe Koenig
37.259Joe Koenig
26.409Joe Koenig
BMW E92 M3
T2
1
1:51.663Joe Koenig
1:51.663Joe Koenig
1:52.643Joe Koenig
128.3Joe Koenig
47.892Joe Koenig
37.259Joe Koenig
26.409Joe Koenig
BMW M3
T2
1
1:54.514Ali Salih
1:54.786Ali Salih
1:54.514Ali Salih
123.0Ali Salih
48.741Ali Salih
37.689Ali Salih
27.320Ali Salih
Porsche 911/997 S
T2
1
1:51.802Joe Boden
1:51.802Joe Boden
1:53.208Joe Boden
125.7Joe Boden
48.181Joe Boden
37.261Joe Boden
26.336Joe Boden
Porsche 997.2
T2
4
1:52.057Tim Kezman
1:52.282Matthew O'Toole
1:52.057Tim Kezman
125.7Matthew O'Toole
47.637Tim Kezman
36.768Tim Kezman
26.614Matthew O'Toole
BMW M2 CSR
T2
2
1:54.097Nathan Martin
1:55.947Tom O'Toole
1:54.097Nathan Martin
123.8Nathan Martin
49.156Nathan Martin
37.499Nathan Martin
26.897Nathan Martin
BMW M2 CS R
T2
1
1:54.097Nathan Martin
1:56.590Nathan Martin
1:54.097Nathan Martin
123.8Nathan Martin
49.156Nathan Martin
37.499Nathan Martin
26.897Nathan Martin
BMW M2 CSR
T2
1
1:55.947Tom O'Toole
1:55.947Tom O'Toole
1:58.122Tom O'Toole
121.4Tom O'Toole
49.996Tom O'Toole
38.368Tom O'Toole
27.583Tom O'Toole
BMW M235ir
T2
2
1:54.829Matthew O'Toole
1:57.159Tom O'Toole
1:58.414Tom O'Toole
125.7Matthew O'Toole
48.874Matthew O'Toole
38.484Matthew O'Toole
27.031Matthew O'Toole
BMW M235iR
T2
1
1:54.829Matthew O'Toole
125.7Matthew O'Toole
48.874Matthew O'Toole
38.484Matthew O'Toole
27.031Matthew O'Toole
BMW M235ir
T2
1
1:57.159Tom O'Toole
1:57.159Tom O'Toole
1:58.414Tom O'Toole
120.2Tom O'Toole
50.439Tom O'Toole
38.997Tom O'Toole
27.705Tom O'Toole
Porsche 997
T2
1
1:55.642Joe Koenig
1:55.642Joe Koenig
1:56.386Joe Koenig
118.6Joe Koenig
49.920Joe Koenig
37.226Joe Koenig
27.834Joe Koenig
The best any driver of each car managed across the selected events, with who set it. Spellings and model years of the same car are grouped; click a row marked ▸ to see each version. Grouping is worked out from the names, so tell us if two cars are wrongly merged or split.
Rule changes between these events
Steel Cities Region Hoosier SCCA Super Tour @ Pittsburgh International Race Complex → Cumberland Classic 2021 2020-08-28 to 2021-04-30
T2 Request to Clarify New 2-piece Brake Rotor Rule
wordingT2 brake rotors expand from ferrous metal only to 2-piece ferrous disks with aluminum hats, within 5% OE diameter.
As printed in Fastrack
In GCR, 9.1.9.2.D.6.a.6., change wording as follows: "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- Ferrous metal 2-piece rotors with ferrous metal rotor disks and aluminum hats are allowed, must be within 5% of OE diameter."
T2 please consider BoP for the following cars in T2
wordingT2 Porsche Cayman S, Spyder (10-12) allows 800#/in front and 1000#/in rear springs, cooler ducting, rotor ducting, and specific Porsche and StopTech brake items.
As printed in Fastrack
In T2 Spec Lines, Porsche Cayman S, Spyder (10-12), add to notes as follows: "Ducting for coolers is free, provided it doesn’t change size and/or shape of factory body panels. Springs up to 800#/in front and 1000 #/in rear allowed. Ducting of air to rotors is allowed. Porsche motorsports item # 9913140158C allowed. Stop Tech calipers #83.788.6700.R1 (f) #83.799.0046.R1 (r ) with 343 mm front rotor allowed."
wordingT2 Ford Mustang GT 5.0L and Ecoboost 2.3 sway bar part numbers added to notes.
As printed in Fastrack
In T2 Ford Mustang GT 5.0L (15-17), add sway bar part number to the notes as follows: "Ford Performance Handling Kit part #M-FR3A-M8, Sway Bars in M-FR3A-M8 kit part #M5490-E or M5490-G," In T2, Ford Mustang Ecoboost 2.3 (2015-), add sway bar part number to the notes as follows: "Ford Performance Handling Kit part #M-FR3A-M8, Sway Bars in M-FR3A-M8 kit part #M5490-E or M5490-G," In T2, Ford Mustang GT 5.0L (2018-), add sway bar part number to the notes as follows: "Ford Performance Handling Kit part #M-FR3A-M8, Sway Bars in M-FR3A-M8 kit part #M-5490-E or M5490-G,"
fasterT2 BMW E92 M3 (08-14) weight reduced 50 lbs to 3475, with detailed brake, spring, sway bar, and restrictor specs.
As printed in Fastrack
In T2, Spec Lines, BMW E92 M3 (08-14) change weight as follows: "3525 3475" In T2, Spec Lines, BMW E92 M3 (08-14) change Notes as follows: "The following aftermarket brakes are allowed with an additional 75lb penalty: StopTech Brake Kit permitted: 380x35mm 6- piston caliper Part# 83.160.6D00.XX(F) and 355 x 35mm 4-piston caliper Part #83.160.0047.XX (R). Brembo Brake kit permitted: Front brake kit #1N2.8505A and rear brake kit #2P2.8033A. Alcon Brake Kit permitted: (F) part #BKF9751ZG70L 6-piston caliper and (R) 4-piston caliper (R) part #BKR9856B20L. AP Racing: Front Part Number 13.01.10038, Rear Part Number 13.01.10053 permitted. Springs up to 800#/in front and rear allowed. Rear spring may be located on shock. Any front swaybar front 32.2mm
Show 5 more lines
and 25.4 rear allowed. RD Sport F & R sway bar kit part # 1968190110. 80 mm 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. DCT transmission allowed. Rear upright may be reinforced so that the lateral arm is mounted in a double shear mount. OEM brake ducts may be used in the factory configuration and may serve no other purpose than the factory intent. AP Racing: Front Part Number 13.01.10038, Rear Part Number 13.01.10053 permitted."
T2 Request for Parity Among Vehicles Including S550 Mustang
fasterT2 Corvette C5 Z06 restrictor sizes increase to 53mm and 58mm; C6 LS2 to 56mm, LS3 to 50mm; Camaro SS/1LE weight drops 75 lbs to 3625; 2016+ Camaro restrictor to 56mm; Mustang GT 11-14 to 58mm, 15-17 to 55mm, 2018+ to 53mm; Viper SRT-10 th…
As printed in Fastrack
In T2, Chevrolet Corvette C-5 Incl. Fxd Cpe (98-04) Z06 (hardtop) (01-04) Spec Lines, change Weight as follows: "3425 w/50 53mm flat plate restrictor) 3175 (w/45mm flat plate restrictor) 3350 (w 55 58mm flat plate restrictor, only permitted when using OEM Wheels and Stock Brakes)" In T2, Chevrolet Corvette C6 Coupe / Grand Sport (05-13) Spec Lines, change Notes as follows: "C6 T1 Suspension kit and Z51 option allowed. Floor may be modified to facilitate installation of cage mounting plates Removable roof panel shall be installed. The following parts are allowed: GM oil pan #12630477; GM radiator baffle # 25953429 (LS3 only); fan shroud, Phoenix part # 1005422; Canton Accusump part # CA24006 or # CA24024, along with Electric solenoid W/ epc # CA24273, Accusump Check Valve # CA2428, and Wheel to Wheel Adapter block # 0760-50001, and related hoses and
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mounting brackets; 180 degree thermostat Hypertech # 1015; Lingenfelter Performance Engineering #L310055204 thermostat (LS2 only); HD oil pressure shim Phoenix part # 1005421. Wrapping of tie-rod ends to shield heat is permitted. Trimming of the lower edge of the center of the air dam is allowed up to a depth of 3.9 cm. ARE dry sump system part #3021 S permitted; the following parts are included: mount w/tensioner and spacer #3020YM, serpentine belt #4032S, pulley #4SERP, oil tank #7030, tank bracket #7000, breather catch can # 7100, filter adapter #4010, damper assembly #8005. Aviaid Dry Sump System part number 008-10001 is permitted; the following parts are included: 3-stage pump 13111-1182, mounting hardware 40082 and 40018-83-1, HTD pump pulley 11649, HTD belt 46476, ATI damper assembly 917289, pan assembly 152-52504-10001, and tank assembly 110-50020-10001. The oil tank for either system shall be installed in the current battery location and the battery must be relocated to the same location as the 08 Corvette Z06; GM battery mounting bracket and hardware must be used. Alternate wheel bearings SKF Part # BAR 5049C permitted. LS2: 53 56mm flat plate restrictor is required. LS3: 48 50mm flat plate restrictor is required. The restrictor must be placed in the front of the factory throttle body manifold opening. The plate must seal the opening so that all air entering passes through the restrictor. Aftermarket leaf spring suspension allowed 800 lb max. Coilover suspension allowed coil springs allowed 800 lb max." In T2, Chevrolet Camaro SS/1LE (10-14) Spec Lines, change Weight as follows: "3700 3625" In T2, Chevrolet Camaro, 1LE (2016-) Spec Lines, change Notes as follows: "Part numbers: 84004136, 23301611, 19352519, 19180514, 23245471 allowed. OEM brake kit #23245471 allowed. 53 56mm flat plate restrictor required. Springs up to 1200#/ in front and rear permitted. Swaybar kit (part number #84242386) permitted. Any front 355mm 4 piston caliper and 2 piece rotors permitted. Dry sump permitted. Any front sway bar 35mm front and 30mm rear permitted. Rear spring relocation to shock permitted. ZL1 1LE Spec Solid Cradle Mounts allowed, Chevrolet Performance part number 84341929." In T2, Ford Mustang GT 5.0L (11-14) Spec Lines, change Notes as follows: "The following parts are allowed: GT/CS Front Fascia #BR3Z-17626-AA, GT/CS Rear Fascia #AR3Z-17F828-AA, Ford Accessories Spoiler #AR3Z-6344210-CA, 14” Brembo Brake Kit #M-2300-S, Rear Axle Cover #M-4033-K, Spring Kit #M-5300-A (M-5310-A front, M5560-A rear. Rear spring relocation to shock permitted with use of this kit), Strut Tower Brace #M-20201-S197, Swaybar Kit #M-5490-A, Jounce Bumper Kit # M-5570-A, Panhard Bar #M-4264-A, Rear Lower Control Arms #M-5649-R1, Rear Upper Shock Mount #M18197-A. Ford Racing oil pan #M-6675-M50BR permitted. Alternate metallic driveshaft permitted. Front bushing kit M-5638-C permitted. 54 58mm flat plate restrictor required. Maximum spring rate 500 lbs (front), 300 lbs (rear)." In T2, Ford Mustang GT 5.0L (15-17) Spec Lines, change Notes as follows: "Ford Performance Handling Kit part #M-FR3A-M8, Sway Bars in M-FR3A-M8 kit part #M5490-E or M5490-G, Rear Toe Bearing part #M-5A460-M, Ford Performance Radiator part #M-8005-M8, Strut Tower Brace part# M-20201-M, Camber Bolts M-3B236- A, Solid Differential Bushings part#M-4425-M, Short Shift Kit part#M- 7210-M8, Solid Subframe Bushings part#M- 5872-M, Dampers in Handling Pack part #M-18000-F, Ford OEM Performance Package Brembo front BBK and 380mm rotors permitted (Ford PN M-2300-V) at no weight penalty. 52 55mm flat plate restrictor required. 2014 Mustang GT exhaust manifolds permitted. Springs up to 800#/in front and rear permitted. Alternate metallic driveshaft permitted. Rear spring relocation to shock permitted with kit TBD. Ford Racing oil pan #M-6675-M50BR permitted." In T2, Ford Mustang GT 5.0L (2018-) Spec Lines, change Notes as follows: "Ford Performance Handling Kit part #M-FR3A-M8, Sway Bars in M-FR3A-M8 kit part #M5490-E or M5490-G, Rear Toe Bearing part #M-5A460-M, Ford Performance Radiator part #M-8005-M8,Strut Tower Brace part# M-20201-M, Camber Bolts M-3B236- A, Solid Differential Bushings part#M-4425-M, Short Shift Kit part#M- 7210-M8, Solid Subframe Bushings part#M- 5872-M, Dampers in Handling Pack part #M-18000-F, Ford OEM Performance Package Brembo front BBK and 380mm rotors permitted (Ford PN M-2300-V) at no weight penalty. 50 53mm flat plate restrictor required. 2014 Mustang GT exhaust manifolds permitted. Springs up to 800#/in front and rear permitted. Alternate metallic driveshaft permitted. Rear spring relocation to shock permitted with kit TBD. Ford Racing oil pan #M-6675-M50BR permitted." In T2, Dodge Viper SRT-10 incl. coupe (03-06) Spec Lines, change Notes as follows: "If a hardtop is used, it shall be the detachable Autoform hardtop (latches shall be replaced with positive fasteners), convertible top shall be removed. Throttle restrictor between each throttle body and plenum is mandatory: .060” flat steel plate with one 40 43mm hole. A .250” thick (max) steel or aluminum spacer is permitted between the throttle body and the restrictor to provide clearance for the throttle butterfly. This spacer shall replicate the dimensions of the stock throttle body flange (i.e. throttle bore, bolt pattern, idle-air bypass port dimensions, etc.) Throttle body spacer bore(s) shall be no larger than the stock throttle body bore diameter at the gasket surface, and shall not be radiused in any way. Throttle restrictor may include idle air control and/or PCV orifice. The following parts are allowed:, Mopar performance fan delete kit #P5153260, Phoenix SRT10 electric fan kit #PPI123321, Mopar swing oil pickup kit # 4510174, Trans. mount # P4510179, Dodge Motorsports T1 suspension kit part # P5153251 Hypercoil springs #188A0750 (F) and 188A0800 (R) are allowed. B&M Shifter (PN45055) is permitted. Oil pan part #5037735AC, oil pick up part #5038022AB, oil pick up tube part #5037312AE are allowed. Maximum front camber of -3.0 w/ Dodge Motorsports T1 suspension package allowed." In T2, Porsche 911 / Carrera S 997.2 (09-12) Spec Lines, change Notes as follows: "57 60mm 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. Ducting for coolers is free, provided it doesn’t change size and/or shape of factory body panels. Ducting of air to rotors is allowed Removal of rotor dust shields is allowed. Tender springs 60-60-25, and spring holders ZT-1-X002A01 allowed. Springs up to 800#/in front and 1000 #/in rear allowed. Sway bar size and configuration is free. Camber adjustment slots may be elongated. Porsche Motorsport front and rear control arms allowed. PDK transmission permitted at +100lbs. Alternate exhaust manifold Cargraphicts CARP97DFIFKR allowed. OEM rear deck lid required. OE Porsche GT3 Cup front fascia number “997-505-980-97-G2X FRONT BUMPER GT3 CUP” or equivalent aftermarket allowed (+75lb). GT3 Cup splitter not allowed." In T2, BMW Z4M (06-08) Spec Lines, change Tire Size as follows: "275 295" In T2, Porsche 911/ 997 (06-08) Spec Lines, change Weight as follows: "3250 3200"
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)"
fasterT2 Porsche Carrera S 997.2 (06-08) weight reduced 50 lbs to 3225.
As printed in Fastrack
In T2 Spec Lines, Porsche Carrera S (06-08), change as follows: "Porsche Carrera S 997.2 (06-08)" Weight (lbs): "3275 3225" In T2 Spec Lines, Porsche 911/ 997 (06-08), change as follows: "Porsche 911/ 997.1 (06-08)"
Applies to Porsche 911/997 S on this page: Joe Boden
wordingT2 BMW M2 CS Cup 2020- and M235iR clarify homologation notes for DOT tires and BMW Motorsports components.
As printed in Fastrack
In T2 Spec Lines, BMW M2 CS Cup 2020-, change Notes as follows: "DOT approved tires required. All other components must be A as homologated from BMW Motorsports No other changes or touring rule allowances permitted." In T2 Spec Lines, BMW M235iR (-2016), change Notes as follows: "DOT approved tires required. All other components must be Aas homologated from BMW Motorsports No other changes or touring rule allowances permitted. Must conform to World-Challenge VTS 2/25/2016 rev.2."
Applies to BMW M2 CSR on this page: Nathan Martin, Tom O'Toole
Applies to BMW M235ir on this page: Matthew O'Toole, Tom O'Toole
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."
wordingT2 C5 and C6 Corvettes permit specific dry sump kits and minor air dam trimming up to 3.9 cm depth.
As printed in Fastrack
In T2 Spec Lines, Chevrolet Corvette C-5 Incl. Fxd Cpe (98-04) Z06 (hardtop) (01-04), add to notes as follows: "OEM or equivalent carbon fiber hood is allowed. ARE dry sump kit #3021S, Dailey 20-02-0666 or Aviad dry sump kit #008-10001 allowed." In T2 Spec Lines, Chevrolet Corvette C6 Coupe / Grand Sport (05-13), add to notes as follows: "Trimming of the lower edge of the center of the air dam is allowed up to a depth of 3.9 cm. Dailey Dry Sump #20-02-0666 permitted, ARE dry sump system part #3021 S permitted;" In T2 Spec Lines, Chevrolet Corvette Z06 (06-12), add to notes as follows: "Trimming of the lower edge of the center of the air dam is allowed up to a depth of 3.9 cm. Dailey Dry Sump #20-02-0666
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permitted, ARE dry sump system part #3021 S permitted;"
Applies to Chevrolet Corvette on this page: Kurt Rezzetano, David Sanders, Joe Aquilante
T2 Request for Chevrolet Camaro 1LE (2016-) Auto Trans
fasterT2 Ford Mustang GT 5.0L 15-17 restrictor grows 55mm to 58mm; 2018- grows 53mm to 55mm.
As printed in Fastrack
In T2 Spec Lines, Ford Mustang GT 5.0L(15-17), change Notes as follows: "55mm 58mm" In T2 Spec Lines, Ford Mustang GT 5.0L (2018-), change Notes as follows: "53mm 55mm"
Applies to Ford Mustang on this page: Marshall Mast, Andrew Wickline
fasterT2 BMW M2 CS Cup 2020- weight increases from 3625 to 3600 lbs; mandatory Purple power stick added.
As printed in Fastrack
In T2 Spec Lines, BMW M2 CS Cup 2020-, change Weight as follows: "3625 00" In T2 Spec Lines, BMW M2 CS Cup 2020-, add to Notes the following: "It is mandatory to run the "Purple" power stick #TBD. Hot country package allowed including part numbers: (aKMK LH 17 10 8342846 1, aKMK RH 17 10 8328139 1, 17 10 8328135 1, 17 10 8328136 1, 17 10 8328137 1, 17 10 8328138 1, ISO7380-2 M5X14 10.9 ZNSW 17 10 8436008 2, 17 10 8417424 1.)"
Applies to BMW M2 CSR on this page: Nathan Martin, Tom O'Toole
fasterT2 Dodge Viper SRT-10 loses 50 lbs to 3550; throttle restrictor hole shrinks from 43mm to 41mm.
As printed in Fastrack
In T2 Spec Lines, Dodge Viper SRT-10 incl. coupe (03-06), change as follows: Weight (lbs): "3600 3550" Notes: "Throttle restrictor between each throttle body and plenum is mandatory: .060” flat steel plate with one 43 41mm hole."
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.)"
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."
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."
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."
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.”
unclearBMW M2 CS Cup 2020- now permits specific exhaust part #18302459928 and hot country package cooling parts.
As printed in Fastrack
In T2 Spec Lines, BMW M2 CS Cup 2020-, change Notes as follows: "DOT approved tires required. All other components must be as homologated from BMW Motorsports. No other changes or Touring rule allowances permitted unless noted below. It is permitted to remove door glass and mechanism. It is mandatory to run the “Purple” power stick part #8324089. BMW exhaust part # 18302459928 allowed. Hot country package allowed including part numbers: (aKMK LH 17 10 8342846 1, aKMK RH 17 10 8328139 1, 17 10 8328135 1, 17 10 8328136 1, 17 10 8328137 1, 17 10 8328138 1, ISO7380-2 M5X14 10.9 ZNSW 17 10 8436008 2, 17 10 8417424 1.)"
Applies to BMW M2 CSR on this page: Nathan Martin, Tom O'Toole