Lap times across years say as much about the weather as the class. % of FF is each class's best lap as a share of FF's on the same day, so the conditions drop out: 100% is level, less is quicker, and a move in it is the class getting faster or slower against the field.
Closest to the field:FF 100.0% of FF Rick Payne, Daytona International Speedway Runoffs 2015 race · P2 78.5% of FF Greg Gyann, Virginia International Raceway Runoffs 2019 race · T3 69.5% of FF Mark Drennan, Sonoma Raceway Runoffs 2018 qualifying
FFP2T3solid race · dashed qualifying · slower is lower
FFP2T3solid race · dashed qualifying · each class's best lap as a share of FF's at the same event (the reference class, changeable above); 100% is level, less is quicker, so up the chart is quicker
2:23.047David Ybarra · fastest of 20 · top 5 within 1.4s-1.858s (-1.28%)
2:23.686Nathan Down · fastest of 20 · top 5 within 1.6s-1.855s (-1.27%)
138.9Tazio Stefanelli+0.5 mph (+0.3%)
2:10.606Greg Gyann · fastest of 11 · top 5 within 5.3s+3.201s (+2.51%)
2:09.441Mike Reupert · fastest of 11 · top 5 within 4.2s+1.119s (+0.87%)
155.0Matt Strand+2.4 mph (+1.6%)
-14.245squal -12.441s
90.1%qual 91.3%
2:27.890Nic Hammann · fastest of 12 · top 5 within 4.0s-0.786s (-0.53%)
2:27.540Scotty B White · fastest of 12 · top 5 within 4.8s-2.358s (-1.57%)
138.4Nic Hammann+0.2 mph (+0.2%)
+3.854squal +4.843s
102.7%qual 103.4%
34 rule changes (FF: 2, T3: 32)8 tyres & wheels · 7 weight · 5 suspension & brakes · 2 cars added · 2 induction · 2 removed · 1 aero · 2 wording · 5 other · FF Kent 1600 compression ratio calculation parameters reorganized: bore size and valve protrusion limits moved to separate subsections for clarity. · T2-T4 adjustable toe links now allow performance alternative bushings and spherical bearings, previously only spherical bearings permitted. · FF clarifies alternative tire eligibility: homologated 1989 or earlier with rocker or outboard suspension all four corners; push-rod/pull-rod cars may seek approval. · T2, T3, T4 now allow under-dash electronics relocation for access after roll cage installation. · T4 Performance clarified: 1-piece alternative rotors permitted only at sizes listed in spec line; alternate brake kits may use matching 1-piece rotors. · T3 and T4 Mazda MX-5 Miata add permitted gearset kit PT#0000-02-6100 to Notes. · T4 MX-5 Miata 19-24 and 16-18, T3 MX-5 16-18 and Global Cup ND1/ND: discontinued DG Motorsports hardtop part #0000-07-5901 removed from permitted list.showhide
FF Clarification in FF Kent 1600 Compression Ratio Paragraph #40293wordingwordingFF Kent 1600 compression ratio calculation parameters reorganized: bore size and valve protrusion limits moved to separate subsections for clarity.
T3 Please change 2011-2014 Mustang V6 Spec Line to 2005-2014 #39558other
T3 Nissan 350Z Weight Request #39598weight -25 lbs
T3 Allow Alt Bushing Material in Toe Links #39607suspension & brakesaddedsuspension & brakesT2-T4 adjustable toe links now allow performance alternative bushings and spherical bearings, previously only spherical bearings permitted.
FF Formula F Alternative Tire Rule Proposed Clarifications #39281tyres & wheelsaddedtyres & wheelsFF clarifies alternative tire eligibility: homologated 1989 or earlier with rocker or outboard suspension all four corners; push-rod/pull-rod cars may seek approval.
T3 Request to Allow Spec Mustang to Touring 3 in Appendix M Trim #39196weight -50 lbs
T3 Tire Help for Spec E9X in T3 #39222tyres & wheels
T3 Alternate Placement of Fuse Panel and Electronics Request #39370otheraddedT2, T3, T4 now allow under-dash electronics relocation for access after roll cage installation.
T3 Clarify T4 Brake Rotor Allowance #39503wordingwordingT4 Performance clarified: 1-piece alternative rotors permitted only at sizes listed in spec line; alternate brake kits may use matching 1-piece rotors.
T3 T3 Ecoboost Mustang clarification #39236suspension & brakes
T3 Make the S2000 Competitive Again #38470tyres & wheels
T3 ND Gearset Request for T4 #39166otheraddedT3 and T4 Mazda MX-5 Miata add permitted gearset kit PT#0000-02-6100 to Notes.
T3 ND Spec Lines Wrong PT#'s #39170removedremovedT4 MX-5 Miata 19-24 and 16-18, T3 MX-5 16-18 and Global Cup ND1/ND: discontinued DG Motorsports hardtop part #0000-07-5901 removed from permitted list.
2:24.905Jonathan Kotyk · fastest of 17 · top 5 within 1.1s+2.353s (+1.65%)
2:25.541Calvin Kautz · fastest of 16 · top 5 within 0.5s+3.484s (+2.45%)
138.4Tazio Stefanelli-2.3 mph (-1.6%)
2:28.676Nic Hammann · fastest of 19 · top 5 within 1.8s+3.226s (+2.22%)
2:29.898Marshall Mast · fastest of 19 · top 5 within 2.9s+0.707s (+0.47%)
138.2Marshall Mast-13.0 mph (-8.6%)
+4.357squal +3.771s
103.0%qual 102.6%
29 rule changes (FF: 4, P2: 1, T3: 24)6 cars added · 5 weight · 4 tyres & wheels · 3 induction · 2 engine · 1 removed · 5 wording · 3 other · T2, T3, T4 spec table header changed from T2 to ET. · FF adds rocker arm and outboard suspension cars option to use Hoosier bias ply slicks or VFF tyres; clarifies mixing rules. · FF adds alternative tire options for older cars with rocker arm or outboard suspension: bias ply slicks or VFF radials. · Ford SCCA Club Spec Mustang added to T3 at 3350 lbs; Mazda SCCA Club Spec MX-5 added to T4 at 2500 lbs. · T2, T3, T4: nine, nine, and thirty-seven expired spec lines removed effective 2025-01-01. · P2 2000 cc Pinto engine car minimum weight set to 1335 lbs. · T2, T3 Mustang spec lines remove redundant driveshaft allowance notes across six model year ranges. · T2, T3, T4 fuel cell installations may omit charcoal canisters, emissions valves, and sensors. · T2, T3, T4 brake specifications clarified: 2-piece rotors allowed in T2 within 5% OE diameter, T3 within 2% OEM diameter. · T2, T3, T4 fuel cell installations may remove charcoal canisters, emissions valves, and sensors. · Porsche Spec Boxster moves to T4, minimum weight 2750 lbs, ineligible for Runoffs until 3 Super Tour events. · T4 BMW 320i Spec Line: Turner Motorsports intercooler #024703TMS02 now allowed. · 2005 Cadillac CTS 3.6L 6-speed manual classified in T3 Spec. · FF and FC sequential gearbox weight penalty reduces from 25 lbs to 10 lbs minimum weight addition. · FF Honda Fit pistons: OEM 0.25mm oversize PN 13020-RB7-Z00 or Fast Forward PN FF800-110 now both allowed; standard diameter 73.240mm (2.8835 inches), minimum weight 198.0g.showhide
T3 Incorrect Touring Heading #38451wordingwordingT2, T3, T4 spec table header changed from T2 to ET.
FF Formula F Proposal to Invite Older Cars Via a Tire Rule Change #37802tyres & wheelsaddedtyres & wheelsFF adds alternative tire options for older cars with rocker arm or outboard suspension: bias ply slicks or VFF radials.
T3 Request to Classify Club Spec in Appropriate Touring Classes #37523cars addedaddedFord SCCA Club Spec Mustang added to T3 at 3350 lbs; Mazda SCCA Club Spec MX-5 added to T4 at 2500 lbs.
T3 Remove spec lines that have expired #37269removedremovedT2, T3, T4: nine, nine, and thirty-seven expired spec lines removed effective 2025-01-01.
T3 Request to Move Spec Mustang to Touring 3 (from T2) #37080cars added
T3 Redundant Verbiage Regarding Mustang Spec Lines for Driveshaft #36484wordingwordingT2, T3 Mustang spec lines remove redundant driveshaft allowance notes across six model year ranges.
T3 Fuel Emissions Components #37076otheraddedT2, T3, T4 fuel cell installations may omit charcoal canisters, emissions valves, and sensors.
T3 fix brake wording #37129wordingwordingT2, T3, T4 brake specifications clarified: 2-piece rotors allowed in T2 within 5% OE diameter, T3 within 2% OEM diameter.
T3 Evaporative emissions systems #37130otheraddedT2, T3, T4 fuel cell installations may remove charcoal canisters, emissions valves, and sensors.
T3 Allow Spec MX5 upgrade kit for 2009-11 RX8 S2 Transmision #37140other
T3 Move Spec Boxster to T4 #37158cars addedaddedPorsche Spec Boxster moves to T4, minimum weight 2750 lbs, ineligible for Runoffs until 3 Super Tour events.
T3 BMW 320i Spec Line #37204engineaddedengineT4 BMW 320i Spec Line: Turner Motorsports intercooler #024703TMS02 now allowed.
T3 Classification for a 2005 Cadillac CTS 3.6 liter 6 speed manual #37224cars addedadded2005 Cadillac CTS 3.6L 6-speed manual classified in T3 Spec.
FF Change FF/FC Weight with Sequential Gearbox #36651weightfasterweightFF and FC sequential gearbox weight penalty reduces from 25 lbs to 10 lbs minimum weight addition.
FF Alternative Oversize Honda Fit Pistons #37064engineaddedengineFF Honda Fit pistons: OEM 0.25mm oversize PN 13020-RB7-Z00 or Fast Forward PN FF800-110 now both allowed; standard diameter 73.240mm (2.8835 inches), minimum weight 198.0g.
2:22.552Calvin Kautz · fastest of 13 · top 5 within 1.1s-0.364s (-0.25%)
2:22.057Sebastian Mateo Naranjo · fastest of 13 · top 5 within 0.6s-2.211s (-1.53%)
140.7Calvin Kautz+2.6 mph (+1.9%)
2:07.405Bart Wolf · fastest of 14 · top 5 within 3.0s-1.109s (-0.86%)
2:08.322Bart Wolf · fastest of 13 · top 5 within 0.6s-1.471s (-1.13%)
152.5Lucian Pancea-0.6 mph (-0.4%)
-13.735squal -15.147s
90.3%qual 89.4%
2:25.450Scotty B White · fastest of 22 · top 5 within 4.5s-4.307s (-2.88%)
2:29.191Marshall Mast · fastest of 21 · top 5 within 1.8s-2.497s (-1.65%)
151.2Scotty B White+13.1 mph (+9.5%)
+7.134squal +2.898s
105.0%qual 102.0%
48 rule changes (FF: 2, P2: 5, T3: 41)8 cars added · 7 induction · 7 weight · 5 suspension & brakes · 3 engine · 2 tyres & wheels · 7 wording · 9 other · FF EGR blanking plate rule clarified: VTEC activation valve must be retained and functioning, no modifications permitted. · T2 Mustang GT 5.0L 15-17 and 2018- now permit Track/Performance Package parts; T3 V6 15-17 clarified to allow Track/Performance package. · T2-T4 Ford Mustangs: remove 25 lb penalty for non-OEM driveshaft, clarify alternate driveshaft allowance. · Audi S4 (2000–2002) classified in T3 with 2671cc, 3400 lbs minimum weight, 38mm restrictor, allowing 800lb springs and intercooler. · P2 Spec Line E engine notes clarify oil system, ECU, and exhaust remain unrestricted; wording only. · P2 FIA Group CN notes clarify V de V European Proto Endurance Challenge bodywork, rear diffuser, wing, wheels, assisted shifting allowed; regulations link provided. · T3 and T4 Mazda RX-8 may remove or disable factory oil injection system. · T2, T3, T4 driveshafts may use carbon fiber, aluminum, or steel; two-piece replaced with one-piece; non-OEM adds 25 lbs. · T2, T3, T4 Spec Lines remove wheelbase requirement, add Required Restrictor specification. · T2 and T3 Nissan 370Z front brake rotors increase to 355×32 mm, rears to 350×20 mm. · T2, T3, T4 battery replacement no longer allows alternate manufacturer batteries within 10% OEM weight. · T4 now allows C-Spec touring cars to compete, in addition to existing B-Spec eligibility. · T2, T3, T4 spec lines expire 12/31/24; submit to appeal or cars are removed from class. · FF Honda Fit gains Fast Forward oversize piston ring option PN FF800-100 as alternative to Riken or Nippon. · P2 AMAC and related cars: clarified B.1 modified engine range to 2008 and older stock engines only, with 38mm restrictor and 1025 lbs minimum weight. · P2 Suzuki GSX-R1000 engine: 2007–2008 crankcase 11300-21860 may be replaced with 2016–2019 GSX-S1000 part 11301-04840. · T3 Nissan 370Z now includes model years 2009–2022 with Nismo editions. · P2 Table 1 engine date ranges clarified: Stock Engine replaced with specific marques Suzuki, Yamaha, Honda, BMW for 2009-newer and 2008-older rows.showhide
FF Update to FF EGR Blanking Plate Rule #36633wordingwordingFF EGR blanking plate rule clarified: VTEC activation valve must be retained and functioning, no modifications permitted.
T3 Mustang T2/T3 #35877cars addedaddedT2 Mustang GT 5.0L 15-17 and 2018- now permit Track/Performance Package parts; T3 V6 15-17 clarified to allow Track/Performance package.
T3 T2-T4 Driveshaft Mistake...? #36050weightfasterweightT2-T4 Ford Mustangs: remove 25 lb penalty for non-OEM driveshaft, clarify alternate driveshaft allowance.
T3 E&O: #35174 (Derek Chan) 350Z Parity Request #36116induction
T3 B8/8.5 Audi S4 T3 and T2 #36195cars addedaddedAudi S4 (2000–2002) classified in T3 with 2671cc, 3400 lbs minimum weight, 38mm restrictor, allowing 800lb springs and intercooler.
P2 CN Spec ECU #35835wordingwordingP2 Spec Line E engine notes clarify oil system, ECU, and exhaust remain unrestricted; wording only.
P2 E&O - Correct FIA Group CN spec line notes #35900wordingwordingP2 FIA Group CN notes clarify V de V European Proto Endurance Challenge bodywork, rear diffuser, wing, wheels, assisted shifting allowed; regulations link provided.
T3 Allow T4 and T3 RX8 to Disable/Remove Factory Oil Inj. #35761engineaddedengineT3 and T4 Mazda RX-8 may remove or disable factory oil injection system.
T3 Driveshafts #35916weightslowerweightT2, T3, T4 driveshafts may use carbon fiber, aluminum, or steel; two-piece replaced with one-piece; non-OEM adds 25 lbs.
T3 370Z Brake Rotor Size Correction #35487suspension & brakessuspension & brakesT2 and T3 Nissan 370Z front brake rotors increase to 355×32 mm, rears to 350×20 mm.
T3 15-18 Golf R Alignment with Existing GTI and R Speclines #35235tyres & wheels
T3 More Car Lightening Stuff #35319wordingremovedT2, T3, T4 battery replacement no longer allows alternate manufacturer batteries within 10% OEM weight.
T3 Open Strut Tower Brace Options for Ford Mustang V6 (11-14) #35322suspension & brakes
T3 Inclusion of B-C spec cars in T4 #35374cars addedaddedT4 now allows C-Spec touring cars to compete, in addition to existing B-Spec eligibility.
T3 T2-T4 Set expiration dates on spec lines #35378wordingremovedT2, T3, T4 spec lines expire 12/31/24; submit to appeal or cars are removed from class.
FF Honda Fit Oversize Piston Rings #35305engineaddedengineFF Honda Fit gains Fast Forward oversize piston ring option PN FF800-100 as alternative to Riken or Nippon.
P2 E&O - Clarify B.1 modified engine range in AMAC spec lines #35225wordingwordingP2 AMAC and related cars: clarified B.1 modified engine range to 2008 and older stock engines only, with 38mm restrictor and 1025 lbs minimum weight.
P2 Replacement Engine Crankcase for 07/08 Suzuki GSX-R1000 Engines #35340engineaddedengineP2 Suzuki GSX-R1000 engine: 2007–2008 crankcase 11300-21860 may be replaced with 2016–2019 GSX-S1000 part 11301-04840.
T3 Requested Update of Model Years of 370Z #35231cars addedaddedT3 Nissan 370Z now includes model years 2009–2022 with Nismo editions.
T3 Update Request for 2010 Mustang GT 4.6 #35234other
T3 SE46 Continued Parity/ Cold Air Intake request #35267induction -50 lbs
T3 Please help the Subaru STIs. #35278weight +100 lbs
P2 Correct Table 1 for Engine Date Range Specifications #35182wordingwordingP2 Table 1 engine date ranges clarified: Stock Engine replaced with specific marques Suzuki, Yamaha, Honda, BMW for 2009-newer and 2008-older rows.
T3 Porsche Cayman Transmissions and Ratios #34891weight
T3 2006-10 Volkswagen GTI - Weight Reduction request and KO4 Turbo #34414weight
T3 Adding Model Years to T3 Golf R Spec Line #34612other
T3 Rear Camber Arms for T3 VW Golf R #34613suspension & brakes
T3 Classing Spec E90 Cars in SCCA #34791cars added
T3 TIR location requirement in VW Golf Spec lines #35048induction
1:59.249Nolan Allaer · fastest of 8 · top 5 within 2.8s+0.034s (+0.03%)
2:00.583Jonathan Kotyk · fastest of 8 · top 5 within 0.4s-17.775s (-12.85%)
138.4Calvin Kautz+0.1 mph (+0.1%)
1:48.590Greg Gyann · fastest of 12 · top 5 within 1.7s+1.024s (+0.95%)
1:48.829Lucian Pancea · fastest of 11 · top 5 within 0.9s-27.005s (-19.88%)
150.9Lucian Pancea-0.2 mph (-0.2%)
-11.754squal -10.659s
90.3%qual 91.1%
2:04.520Steve Ott · fastest of 18 · top 5 within 1.9s+0.297s (+0.24%)
2:05.854Chris Hart · fastest of 18 · top 5 within 1.8s-21.772s (-14.75%)
139.1Jason Ott-1.1 mph (-0.8%)
+5.271squal +5.271s
104.4%qual 104.4%
37 rule changes (FF: 1, P2: 8, T3: 28)7 cars added · 6 weight · 3 engine · 3 suspension & brakes · 3 tyres & wheels · 1 aero · 1 induction · 1 removed · 7 wording · 5 other · Mazda RX-8 T3 and T4 transmission and final drive pairing requirement removed; T4 gains Mazdaspeed radiator, spring kit, restrictor, spoiler, air dam. · T3 BMW 320i 14–15 gains aftermarket intercooler; T4 BMW 320i 14–15 loses it. · T3 and T2 Pontiac Solstice GXP 07-09 minimum ride height set to 3 inches. · P2 minimum side body height must equal front axle centerline height, viewed from side. · P2 closed cockpit single seat cars now prohibited unless Table 1 spec line permits. · P2 engine table spec line B.1 redundant effective date language removed and table updated. · P2 motorcycle restrictor reduced 35mm to 34mm for 2011+ Kawasaki; minimum weights increased to 1100 lbs for 2009+ engines; cockpit length corrected to 23.622 inches. · FF Honda Fit engine adds Fast Forward part number alternatives for intake, exhaust, oil system, and scavenge pump components. · T2 and T3 Mustang 11-14 may remove upper grille fog lights, replace with mesh or screen. · Sebeco NP01-EVO and Elan NP01 added to P2 with Mazda 2.0L MZR, no restrictor required, 1600 lb minimum weight. · P2 Radical SR3/SR4, Cup, Club Sport, Pro-Sport, PR6: assisted shifting clarified from A-assisted to Aassisted; Cup engine restrictor changed from Unrestricted to Not required. · P2 chassis now allows composite materials partially installed; anti-intrusion panels attachment simplified; Stohr and converted models clarified. · T3 Nissan 350Z and 370Z remove specific SPC upper control arm part numbers, permit performance alternatives instead. · T5 touring class added; T2-T5 cars may race one class up; T5 maximum tyre width 225 with minimum aspect ratio 45. · T2-T5 Touring front and rear suspension maximum negative camber clarified to 3.5 degrees. · T3 Solstice GXP gains hardtop, suspension, spoiler, Cobalt brakes, aftermarket top, intercooler alternatives, and 4-piston calipers. · T3 Subaru BRZ 2022- minimum weight rises 225 lbs to 2975; spring rate to 1000 F/R; tower brace, control arms, intake allowed; brake parts penalty removed.showhide
T3 2012-2013 Golf R - added to T3 #34413cars added
T3 Rules Clarification for Mazda RX8 Spec Line #34395wordingwordingMazda RX-8 T3 and T4 transmission and final drive pairing requirement removed; T4 gains Mazdaspeed radiator, spring kit, restrictor, spoiler, air dam.
T3 rule book corrections #34437otheraddedT3 BMW 320i 14–15 gains aftermarket intercooler; T4 BMW 320i 14–15 loses it.
T3 Allowing 255 Tire Width for Nissan 350z #34471tyres & wheels
T3 Ride Height Correction for the T3 Solstice. #34615suspension & brakessuspension & brakesT3 and T2 Pontiac Solstice GXP 07-09 minimum ride height set to 3 inches.
T3 2016+ Camaro 1LE - Max Wheel Diameter #34003tyres & wheels
T3 2022 Toyota GR Cup for T3 discussion #34234cars added
P2 Clarify minimum side body height requirement #34143wordingwordingP2 minimum side body height must equal front axle centerline height, viewed from side.
P2 Clarify closed cockpit single seat car allowance #34144wordingwordingP2 closed cockpit single seat cars now prohibited unless Table 1 spec line permits.
T3 Request Spec E46 in T3 Weight Adjustment #33897weight -25 lbs
T3 Update SpecE46 Spec Line to Current SpecE46 Ruleset #34016other
P2 Remove redundant effective date language and update engine table #34012wordingwordingP2 engine table spec line B.1 redundant effective date language removed and table updated.
P2 E&O - Correct dimensional equivalents #34038enginefasterengineP2 motorcycle restrictor reduced 35mm to 34mm for 2011+ Kawasaki; minimum weights increased to 1100 lbs for 2009+ engines; cockpit length corrected to 23.622 inches.
T3 Request to all ECS Tuning inner-cooler to 06-10 VW GTI spec #33769other
FF Add Fast Forward Part Numbers for Honda Fit Engine #33752engineaddedengineFF Honda Fit engine adds Fast Forward part number alternatives for intake, exhaust, oil system, and scavenge pump components.
T3 Adjustable Rear Camber Arms for VW (All Generations) #33572suspension & brakes
P2 Request to Classify Sebeco NP01 #33378cars addedaddedSebeco NP01-EVO and Elan NP01 added to P2 with Mazda 2.0L MZR, no restrictor required, 1600 lb minimum weight.
P2 Radical spec line clarifications #33485wordingwordingP2 Radical SR3/SR4, Cup, Club Sport, Pro-Sport, PR6: assisted shifting clarified from A-assisted to Aassisted; Cup engine restrictor changed from Unrestricted to Not required.
P2 E&O original class intent #33519wordingwordingP2 chassis now allows composite materials partially installed; anti-intrusion panels attachment simplified; Stohr and converted models clarified.
T3 350z SPC Upper Control Arm Safety Concerns #33020suspension & brakesremovedsuspension & brakesT3 Nissan 350Z and 370Z remove specific SPC upper control arm part numbers, permit performance alternatives instead.
T3 Touring (T2-T5) Category #33617cars addedaddedT5 touring class added; T2-T5 cars may race one class up; T5 maximum tyre width 225 with minimum aspect ratio 45.
T3 ENO 9.1.9.2.D.1.e.1.a. #33651wordingwordingT2-T5 Touring front and rear suspension maximum negative camber clarified to 3.5 degrees.
T3 Solstice GXP in T3 #33501cars addedaddedT3 Solstice GXP gains hardtop, suspension, spoiler, Cobalt brakes, aftermarket top, intercooler alternatives, and 4-piston calipers.
T3 Another 2022 BRZ/86 T3 request #32945weight +225 lbsslowerweightT3 Subaru BRZ 2022- minimum weight rises 225 lbs to 2975; spring rate to 1000 F/R; tower brace, control arms, intake allowed; brake parts penalty removed.
1:59.215Jonathan Kotyk · fastest of 13 · top 5 within 1.2s-0.348s (-0.29%)
2:18.358Jonathan Kotyk · fastest of 12 · top 5 within 2.4s-2.116s (-1.51%)
138.3Tim Kautz+2.2 mph (+1.6%)
1:47.566Tim Day Jr · fastest of 12 · top 5 within 3.0s-1.545s (-1.42%)
2:15.834Greg Gyann · fastest of 12 · top 5 within 10.1s+25.576s (+23.20%)
151.1Robert Iversen+1.8 mph (+1.2%)
-2.524squal -11.649s
98.2%qual 90.2%
2:04.223Jason Ott · fastest of 20 · top 5 within 2.1s-0.695s (-0.56%)
2:27.626Marshall Mast · fastest of 19 · top 5 within 4.1s+22.272s (+17.77%)
140.2Jason Ott+2.0 mph (+1.4%)
+9.268squal +5.008s
106.7%qual 104.2%
41 rule changes (P2: 10, T3: 31)9 cars added · 9 weight · 4 suspension & brakes · 1 aero · 1 engine · 1 tyres & wheels · 13 wording · 3 other · T3 Honda S2000 00-09 now permits OEM, Mugen P/N 0000-04-2312, or aftermarket hardtop retaining OEM roof silhouette with positive fasteners. · T3 Pontiac Solstice GXP Coupe/Convertible 07-09 tire runout increases from 35mm to 36mm TIR. · BMW 320i (14-15) classified in T3 with 1997cc displacement, 3050 lbs minimum weight, 18×10 wheels, 255/275 tyres. · T3 2022 BRZ and GR86 gain permitted sway bars to 25mm front, 22mm rear, OEM trunk spoiler, and other suspension options. · P2 chassis construction clarified: full composite allowed; partial composite must roll without composite parts installed. · P2 classification wording cleaned up in GCR section 9.1.8.C and GCR contents. · T3 Honda Civic Si 2017- notes clarify allowed parts and remove 50 lb penalty for wheels up to 10 inch wide. · T3 Porsche Boxster Base 2005-2008 added to spec: 2687cc, 3000 lbs minimum, 18×8 wheels, 245 tyres, alternate exhaust manifolds permitted. · T2-T4 Touring cars with alternative springs now permitted to use performance top hats with spherical bearings on shocks and struts. · T3 Subaru BRZ and Toyota 86 (2022-) add cold air intake, strut tower brace, SPC rear arms, 750 F/R springs, and optional OEM brakes with 100 lb penalty. · P2 Oldsmobile cam rules correct spelling from 'after market' to 'aftermarket' in two sections. · T2-T4 touring cars model year 2018+ may use aftermarket ECU with 75 lb weight penalty via spec line adjustment. · T3 Ford Mustang V6 (11-14) minimum weight drops 50 lbs to 3350. · T3 Subaru STI 15–20 now allows SPC lower control arm 67660. · P2 adds Beasley B2 at 1350 lbs with Mazda 12A, 40.5mm venturi, and up to 16.5in wing chord. · P2 wings: terminology change from 'cord' to 'chord', and 'only' removed from Bobsy and Jondal notes. · P2 Converted F5 cars renamed F500, must retain F500 suspension, minimum width 55 inches. · T3 BMW 330i minimum weight drops to 3125 lbs; tyres narrow to 245. · T3 Nissan 370Z 09-16 and 370Z NISMO 09-13 minimum weight increases to 3375 lbs. · T3 FWD models: most turbo inlet restrictors increased 35mm to 36mm; Focus ST final drive changed to 4.06 (1-4) 2.95 (5-6), brakes to 320F/271R; GTI 14.5-17 gear ratios changed DSG and STD. · T2-T4 grill opening removal for cooling permitted without 16 square inch limit; mesh shape must match factory. · T3 Spec Lines: Subaru BRZ TS (13-21) now listed as 'Subaru BRZ, BRZ TS (13-21)'. · P2 motorcycle engines gain 5cc to 1505cc max, two-stroke gains 5cc to 1205cc max, automotive engines add 50 lbs minimum weight to 1350 lbs. · P2 Control Area definition clarified: rectangular zone from rear edge of front tires to front edge of rear tires, full car width. · T3 Scion FR-S/Toyota 86 GT and Subaru BRZ minimum weight reduced 75 lbs to 2675; aero rules simplified. · T3 adds 2022+ Subaru BRZ and Toyota 86, both 2400cc, 2575mm wheelbase, 18x9 wheels, 245 tyres, 2750 lbs. · T2, T3, T4 clarify grill opening removal limited to 16 square inches for radiator cooling; mesh shape must be retained. · T3 BMW 335i model years adjusted from 08-13 to 07-10. · T3 BMW 135i model years restricted to 08-10, no longer 08-13. · T2, T3, T4 radiator and coolant hoses may be replaced with aftermarket options; coolant temp sensor modification permitted. · T3 Nissan 350Z and 370Z suspension: SPC Control Arms 72130, 72125 now allow 72123 alternative. · T2, T3, T4: clarified that 'permitted' or 'allowed' parts in spec lines are alternatives to category rule allowances, not replacements. · P2 specification line B.1 engine table entry amended; details of change not provided in excerpt. · P2 Control Area definition clarified: rear tire edge and front tire edge bounds, car's lower surface width, floor extensions and aerodynamic attachments included, vertical structures prohibited. · T3 BMW Z4 M Coupe model years expand from 2007 only to 2006–2008. · T3 Subaru STI (15–20) minimum weight rises to 3350 lbs. · T4 adds 2014 VW Jetta 1.8T TSI to Spec Lines. · T3 BMW 323Ci/Is 98-00 minimum weight reduced to 3000 lbs. · Subaru STI (15-20) added to T3 with 2457cc engine, 3200 lbs minimum weight, 18×9 wheels, 245 tyres.showhide
T3 S2000 Hard Top Clarification #32779cars addedaddedT3 Honda S2000 00-09 now permits OEM, Mugen P/N 0000-04-2312, or aftermarket hardtop retaining OEM roof silhouette with positive fasteners.
T3 T3 Pontiac Solstice- #33081tyres & wheelstyres & wheelsT3 Pontiac Solstice GXP Coupe/Convertible 07-09 tire runout increases from 35mm to 36mm TIR.
T3 Classify Car #32691cars addedaddedBMW 320i (14-15) classified in T3 with 1997cc displacement, 3050 lbs minimum weight, 18×10 wheels, 255/275 tyres.
T3 2022 BRZ Sway bar and lip spoiler. #32703suspension & brakesaddedsuspension & brakesT3 2022 BRZ and GR86 gain permitted sway bars to 25mm front, 22mm rear, OEM trunk spoiler, and other suspension options.
P2 E&O Clarification of Chassis Construction Requirements #32469wordingwordingP2 chassis construction clarified: full composite allowed; partial composite must roll without composite parts installed.
P2 Clean up P2 wording #32525wordingwordingP2 classification wording cleaned up in GCR section 9.1.8.C and GCR contents.
T3 correct wording #31750wordingfasterT3 Honda Civic Si 2017- notes clarify allowed parts and remove 50 lb penalty for wheels up to 10 inch wide.
T3 2005-2008 Porsche Boxster 2.7 #31999cars addedaddedT3 Porsche Boxster Base 2005-2008 added to spec: 2687cc, 3000 lbs minimum, 18×8 wheels, 245 tyres, alternate exhaust manifolds permitted.
T3 Request Alternate Front & Rear Strut/Shock Top Hats #32452suspension & brakesaddedsuspension & brakesT2-T4 Touring cars with alternative springs now permitted to use performance top hats with spherical bearings on shocks and struts.
T3 2022 Subaru BRZ and Toyota 86 twins #32483cars addedaddedT3 Subaru BRZ and Toyota 86 (2022-) add cold air intake, strut tower brace, SPC rear arms, 750 F/R springs, and optional OEM brakes with 100 lb penalty.
P2 After Market to Aftermarket #32373wordingwordingP2 Oldsmobile cam rules correct spelling from 'after market' to 'aftermarket' in two sections.
T3 Request to Allow the Use of Aftermarket ECU's in Touring #31067engineaddedengineT2-T4 touring cars model year 2018+ may use aftermarket ECU with 75 lb weight penalty via spec line adjustment.
T3 T3 Mustang V8/V6 #31959weight -50 lbsfasterweightT3 Ford Mustang V6 (11-14) minimum weight drops 50 lbs to 3350.
T3 Subaru STI (15-20) Missing part #32294suspension & brakesaddedsuspension & brakesT3 Subaru STI 15–20 now allows SPC lower control arm 67660.
P2 Add spec line for Beasley B2 #32147cars addedaddedP2 adds Beasley B2 at 1350 lbs with Mazda 12A, 40.5mm venturi, and up to 16.5in wing chord.
P2 E&O Table 1 spec line wing terminology #32148wordingwordingP2 wings: terminology change from 'cord' to 'chord', and 'only' removed from Bobsy and Jondal notes.
P2 E&O class name #32196wordingwordingP2 Converted F5 cars renamed F500, must retain F500 suspension, minimum width 55 inches.
T3 Touring 3 BOP adjustments for 2022 #31481weight +75 lbs
T3 BMW 330i Minimum Comp Weight #31606weight -60 lbsfasterweightT3 BMW 330i minimum weight drops to 3125 lbs; tyres narrow to 245.
T3 Adjust T3 370Z #31748weight +50 lbsslowerweightT3 Nissan 370Z 09-16 and 370Z NISMO 09-13 minimum weight increases to 3375 lbs.
T3 TIR changes for FWD T3 models #31825otherunclearT3 FWD models: most turbo inlet restrictors increased 35mm to 36mm; Focus ST final drive changed to 4.06 (1-4) 2.95 (5-6), brakes to 320F/271R; GTI 14.5-17 gear ratios changed DSG and STD.
T3 Reply to letter #31486/29879 T2-T4 Grill openings #31935aerofasteraeroT2-T4 grill opening removal for cooling permitted without 16 square inch limit; mesh shape must match factory.
T3 BRZ vs BRZ TS #32022wordingwordingT3 Spec Lines: Subaru BRZ TS (13-21) now listed as 'Subaru BRZ, BRZ TS (13-21)'.
T3 Remove StopTech 4 piston BBK, allow any 4 Piston Kit - VW GTI #33082weight
P2 E&O Engine section #31969weightslowerweightP2 motorcycle engines gain 5cc to 1505cc max, two-stroke gains 5cc to 1205cc max, automotive engines add 50 lbs minimum weight to 1350 lbs.
P2 E&O letter #31539 – Control Area definition #31783wordingwordingP2 Control Area definition clarified: rectangular zone from rear edge of front tires to front edge of rear tires, full car width.
T3 Request FRS/BRZ/86 T3 Weight Reduction #30818weight -75 lbsfasterweightT3 Scion FR-S/Toyota 86 GT and Subaru BRZ minimum weight reduced 75 lbs to 2675; aero rules simplified.
T3 Request to Classify 2022 Toyota 86 / Subaru in T3 & T4 #30931cars addedaddedT3 adds 2022+ Subaru BRZ and Toyota 86, both 2400cc, 2575mm wheelbase, 18x9 wheels, 245 tyres, 2750 lbs.
T3 Reply to letter 29879 T2-T4 Grill Openings #31486wordingwordingT2, T3, T4 clarify grill opening removal limited to 16 square inches for radiator cooling; mesh shape must be retained.
T3 Please Adjust Years Allowed for BMW 335i to 07-10, not 08-13 #31530wordingwordingT3 BMW 335i model years adjusted from 08-13 to 07-10.
T3 Please Adjust Years Allowed for BMW 135i to 08-10, not 08-13 #31531wordingwordingT3 BMW 135i model years restricted to 08-10, no longer 08-13.
T3 Request to clarify radiator hoses #31682otheraddedT2, T3, T4 radiator and coolant hoses may be replaced with aftermarket options; coolant temp sensor modification permitted.
T3 T3 Nissan Z Suspension Update #31728suspension & brakessuspension & brakesT3 Nissan 350Z and 370Z suspension: SPC Control Arms 72130, 72125 now allow 72123 alternative.
T3 Clarify Permitted/Allowed #31743wordingwordingT2, T3, T4: clarified that 'permitted' or 'allowed' parts in spec lines are alternatives to category rule allowances, not replacements.
P2 BoP adjustment effective 1-1-22 #31538otherunclearP2 specification line B.1 engine table entry amended; details of change not provided in excerpt.
P2 E&O clarification of "Control Area" definition #31539wordingwordingP2 Control Area definition clarified: rear tire edge and front tire edge bounds, car's lower surface width, floor extensions and aerodynamic attachments included, vertical structures prohibited.
T3 Request to correct model years BMW Z4 M Coupe #31371cars addedaddedT3 BMW Z4 M Coupe model years expand from 2007 only to 2006–2008.
T3 Correct letter the 31327 #31563weight +150 lbsslowerweightT3 Subaru STI (15–20) minimum weight rises to 3350 lbs.
T3 Request to Classify 2014 VW Jetta 1.8t TSI #30436cars addedaddedT4 adds 2014 VW Jetta 1.8T TSI to Spec Lines.
T3 Request Weight Reduction 323is #30765weight -100 lbsfasterweightT3 BMW 323Ci/Is 98-00 minimum weight reduced to 3000 lbs.
T3 Class Newer STI in T3 #31327cars addedaddedSubaru STI (15-20) added to T3 with 2457cc engine, 3200 lbs minimum weight, 18×9 wheels, 245 tyres.
1:44.359Jonathan Kotyk · fastest of 24 · top 5 within 1.1s-0.242s (-0.23%)
1:55.676Jonathan Kotyk · fastest of 23 · top 5 within 1.8s+11.152s (+10.67%)
141.6Nicholas Sheppard
1:33.235Tim Day Jr · fastest of 16 · top 5 within 3.3s+1.409s (+1.53%)
1:35.322Tim Day Jr · fastest of 10 · top 5 within 4.8s+2.841s (+3.07%)
150.3Robert Iversen
-20.354squal -11.124s
82.4%qual 89.3%
1:51.591Marshall Mast · fastest of 23 · top 5 within 0.9s-0.623s (-0.56%)
1:52.701Breton Williams · fastest of 22 · top 5 within 0.7s-0.585s (-0.52%)
136.4Jason Ott
-2.975squal +7.232s
97.4%qual 106.9%
30 rule changes (FF: 3, P2: 8, T3: 19)7 cars added · 4 weight · 3 tyres & wheels · 2 engine · 1 aero · 9 wording · 4 other · P2 CN Honda K20A-FD2 engine rebuild clarified: balancing, porting, polishing prohibited; valve jobs and honing must follow factory procedures. · P2 Converted F5 cars must retain F5 suspension and meet P2 non-spec requirements except minimum width is 55 inches. · P2 minimum body width clarified: cannot extend inward beyond vertical plane through tire centerlines. · T3 Porsche Spec Boxster minimum weight reduced to 2550 lbs. · T3 Porsche Cayman 06-08 wheel width increases from 8 to 9 inches. · T3 Mazda MX-5 Global Cup Miata ND2 with sequential gearbox allowed +100 lbs weight adder. · T3 Honda Civic Type-R 2020+ allowed brake rotor #45251-TGH-A01 with 25 lb penalty. · P2 tonneau covers now allowed to meet minimum dimensions; cockpit equipment attachment wording clarified. · P2 removes effective date 01/01/2021 from six car spec lines in Table 1. · P2 engine specs B.1, B.2, B.3 limited to maximum 4 valves per cylinder. · T3 Porsche Boxster/Boxster S 00-04 now allows any OEM or aftermarket hardtop retaining OEM roof silhouette. · T3 Mazdaspeed3 07-09 and 10-13 allow CorkSport Gen-6-999-10 or Autotech 10-127-100K fuel pump. · FF block relief permitted only as needed to fit an allowed crankshaft. · T2-T4 clutch discs and pressure plates must be at least 95% of factory OEM weight, bolted to unmodified stock flywheel. · Porsche Cayman 06-08 added to T3 with 2687cc engine, 3050 lbs minimum weight, 18-inch wheels, 245 tires. · P2 adds new spec line for 2-cycle 3-cylinder engine up to 820cc with 10 front, 14–15 rear wheel width. · Toyota Supra 2020- added to T2 with 2998 cc engine, 3450 lbs minimum weight, 19×10 wheels, 295 tyres. · T3 Chevrolet Camaro LT-I4 Turbo 1LE model year changed to 2016-, max tyre size 275, TIR 35mm. · T2 Ford Mustang GT 5.0L 15-17 gear ratios changed to 3.66, 2.43, 1.69, 1.32, 1.00, 0.65 or 4.17, 2.34, 1.52, 1.14, 0.87, 0.69. · T3 Spec Boxster tires must be 245 DOT, up from 225. · T2 BMW M2 CS Cup 2020+ classified at 2979 cc, 3625 lbs, 295 tires, 10.5×18 wheels, 380/390 mm brakes. · T3 and T4 Mazda MX-5 06-15 now allow Mazda Transmission kit part # 0000-02-5700. · T2 and T3 Nissan 350Z and 370Z permit 44011-RC350 rear caliper kit and SZ350 rotors; T2 350Z also permits Stillen 400338. · T4 Ford Mustang V6 05-10 allows GT 8.8 rear axle with 3.55 final drive, plus 25 lb penalty. · T3 Scion FR-S/Toyota 86 and Subaru BRZ capped to 2021 model year; T4 models capped to 2021. · FF class cylinder head now permits optional coolant bleed line pipe thread fitting to swirl tower. · FF Honda LC1 ECU supplied by HPD is permitted effective 12/1/2020 with HPD lambda sensor. · P2 motorcycle-engine cars: 2009+ stock 37mm restrictor, 2008- stock 35mm, modified 1075 lbs. Honda K20A 50mm restrictor. Various spec cars: restrictors increased or decreased 0.5–3mm. · T3 Alfa Romeo 4C Launch Edition variant now allowed.showhide
P2 P2 CN Engine Rebuild Clarification #31000wordingwordingP2 CN Honda K20A-FD2 engine rebuild clarified: balancing, porting, polishing prohibited; valve jobs and honing must follow factory procedures.
P2 F5 P2 Conversion #30856wordingwordingP2 Converted F5 cars must retain F5 suspension and meet P2 non-spec requirements except minimum width is 55 inches.
P2 Clarify minimum body width requirement #30859wordingwordingP2 minimum body width clarified: cannot extend inward beyond vertical plane through tire centerlines.
T3 Follow-up to letter 29797-Porsche Spec Boxster in T3 Adjustment #30144weight -50 lbsfasterweightT3 Porsche Spec Boxster minimum weight reduced to 2550 lbs.
T3 Wheel Size #30677tyres & wheelsfastertyres & wheelsT3 Porsche Cayman 06-08 wheel width increases from 8 to 9 inches.
T3 Request weight adder to be applied to the Global Cup Miata ND2 #30730weightslowerweightT3 Mazda MX-5 Global Cup Miata ND2 with sequential gearbox allowed +100 lbs weight adder.
T3 Civic Type R Brake Rotors #29817weightslowerweightT3 Honda Civic Type-R 2020+ allowed brake rotor #45251-TGH-A01 with 25 lb penalty.
P2 E&O tonneau cover provision in cockpit opening section #30459wordingwordingP2 tonneau covers now allowed to meet minimum dimensions; cockpit equipment attachment wording clarified.
P2 Remove effective dates in Table 1 #30468wordingwordingP2 removes effective date 01/01/2021 from six car spec lines in Table 1.
P2 E&O Maximum Valves Per Cylinder #30560engineengineP2 engine specs B.1, B.2, B.3 limited to maximum 4 valves per cylinder.
T3 Requesting Variance on Hardtop #30093aeroaddedaeroT3 Porsche Boxster/Boxster S 00-04 now allows any OEM or aftermarket hardtop retaining OEM roof silhouette.
T3 07-09 and 10-13 Mazdaspeed 3 Fuel Pump #30154otheraddedT3 Mazdaspeed3 07-09 and 10-13 allow CorkSport Gen-6-999-10 or Autotech 10-127-100K fuel pump.
FF Kent crankshaft clarification #30426wordingwordingFF block relief permitted only as needed to fit an allowed crankshaft.
T3 Request consistency review in GCR #30263wordingwordingT2-T4 clutch discs and pressure plates must be at least 95% of factory OEM weight, bolted to unmodified stock flywheel.
T3 Request to classify 2006-2008 Cayman #30315cars addedaddedPorsche Cayman 06-08 added to T3 with 2687cc engine, 3050 lbs minimum weight, 18-inch wheels, 245 tires.
P2 Add a new spec line for a 2-cycle, 3-cylinder engine up to 820cc #30272cars addedaddedP2 adds new spec line for 2-cycle 3-cylinder engine up to 820cc with 10 front, 14–15 rear wheel width.
T3 2021 Toyota Supra #29567cars addedaddedToyota Supra 2020- added to T2 with 2998 cc engine, 3450 lbs minimum weight, 19×10 wheels, 295 tyres.
T3 Chevrolet Camaro LT-I4 Turbo 1LE (2019-) Model Year to 2016- #30090tyres & wheelsfastertyres & wheelsT3 Chevrolet Camaro LT-I4 Turbo 1LE model year changed to 2016-, max tyre size 275, TIR 35mm.
T3 Fix T2 Mustang spec line #30106otherunclearT2 Ford Mustang GT 5.0L 15-17 gear ratios changed to 3.66, 2.43, 1.69, 1.32, 1.00, 0.65 or 4.17, 2.34, 1.52, 1.14, 0.87, 0.69.
T3 Spec Boxster Tire Size #30159tyres & wheelstyres & wheelsT3 Spec Boxster tires must be 245 DOT, up from 225.
T3 Request to Classify BMW M2 CS #29523cars addedaddedT2 BMW M2 CS Cup 2020+ classified at 2979 cc, 3625 lbs, 295 tires, 10.5×18 wheels, 380/390 mm brakes.
T3 Allow the SpecMX-5 Update Kit Into Touring 4 for the MX-5 #29681otheraddedT3 and T4 Mazda MX-5 06-15 now allow Mazda Transmission kit part # 0000-02-5700.
T3 350Z Rear Caliper Replacement #29710cars addedaddedT2 and T3 Nissan 350Z and 370Z permit 44011-RC350 rear caliper kit and SZ350 rotors; T2 350Z also permits Stillen 400338.
T3 Request Mustang 8.8†rear axle replacement #29860cars addedaddedT4 Ford Mustang V6 05-10 allows GT 8.8 rear axle with 3.55 final drive, plus 25 lb penalty.
T3 Cap year range on all 86s #29908wordingwordingT3 Scion FR-S/Toyota 86 and Subaru BRZ capped to 2021 model year; T4 models capped to 2021.
FF Allow Optional Coolant Bleed Line to Correct a Known Problem #29673otheraddedFF class cylinder head now permits optional coolant bleed line pipe thread fitting to swirl tower.
FF Clarification regarding Honda LC1 ECU implementation date #29684wordingwordingFF Honda LC1 ECU supplied by HPD is permitted effective 12/1/2020 with HPD lambda sensor.
2:22.916Simon Sikes · fastest of 14 · top 5 within 1.6s
2:24.268Jeffrey Bartz · fastest of 14 · top 5 within 0.4s
138.1Jeffrey Bartz
2:08.514Robert Iversen · fastest of 12 · top 5 within 3.0s
2:09.793Robert Iversen · fastest of 12 · top 5 within 3.9s
153.1Robert Iversen
-14.475squal -14.402s
90.0%qual 89.9%
2:29.757Marshall Mast · fastest of 29 · top 5 within 2.1s
2:31.688Marshall Mast · fastest of 20 · top 5 within 1.8s
138.1Jason Ott
+7.420squal +6.841s
105.1%qual 104.8%
36 rule changes (FF: 4, P2: 6, T3: 26)13 cars added · 4 engine · 4 suspension & brakes · 3 tyres & wheels · 2 weight · 1 aero · 1 induction · 7 wording · 1 other · T3 Honda Civic Type R (2017–) classified: 1996 cc, 3350 lbs, 245 tyres, 20-inch wheels, with HPD parts allowed. · P2 rear wing rules clarified: standard wing 6×12 inches, end plates 14-inch square; alternate 1-meter formula wing 110cm wide, 9×18 inches, end plates 14×18 inches. · FF Honda LC1 ECU implementation date clarified to pending, contingent on SCCA receiving sufficient support materials. · T3 Honda Accord 2009 V6 manual classified with 3471 cc displacement, 3450 lbs minimum weight, 245 tire, 19x9 wheels. · T3 Mazda MX-5 ND2 Global Cup Miata must meet all ND2 rules; Appendix reference removed. · T3 Volkswagen GTI, Jetta GLI 06-10 FSI: sway bars to 42mm, springs to 800 lb/in, turbo restrictor 35mm max, R32 brakes allowed, Stoptech 355mm allowed, Neuspeed intake allowed or OEM minus 25 lbs. · Request to add vehicle to T2, T3, T4 roster; refer to letter #27663 in June 2020 Fastrack for decision. · Elan NP01 added to P2 Table 1 as Spec Line car with 2000cc displacement and 42mm restrictor. · 2004 Mercedes Benz CLK 320 Coupe classified in T4 at 3200 lbs with 3299cc engine, 17-inch wheels, 245 tyres, EIBACH PN# 2563.140 springs allowed. · T3 Nissan 350Z brake kit part numbers specified: NISMO calipers 41001-FR350, rotors 40206-SZ350 and 40207-SZ350. · P2 Enterprises Sports Racer now permits 55mm flat plate intake restrictor Part # WM303013 as alternative to SIR. · T3 Ford Mustang EcoBoost and V6 sway bars allowed up to 35mm front, 25mm rear. · T3 BMW Z3 M & Coupe 98-99 minimum weight reduced to 3150 lbs. · FF Kent Engine alternator becomes optional instead of not required. · P2 Enterprise Sports Racer 2.3L engine must use SIR or Flat Plate restrictor meeting peak horsepower, sized in whole or 0.5mm increments. · FF permits HPD LC1 ECU with lambda sensor; E1 ECU no longer supported but existing units may continue. · FF rain tyres now allow Hoosier W3 Radial 185/60R13 front and 205/60R13 rear. · P2 electronic throttle control wording clarified: ETC permitted if stock ECU throttle pedal activates original throttle shaft mechanism. · T3 05-10 V8 Mustang allowed parts clarified: strut tower brace, radiator, sway bars, damper kit, max spring rates 500 lbs/in front, 300 lbs/in rear. · T3 Ford Mustang Coupe GT & Shelby GT 4.6L 05-10 adds permitted final drive ratios: 3.31, 3.55 or 3.73. · T3 adds BMW 330i 2006-2012, 2996 cc, 18×9 wheels, 245 tyres, 3200 lbs minimum. · Pontiac Solstice GXP and Saturn Sky move from T2 to T3; wheels widen to 18x9.5, Sky weight drops to 3200 lbs. · Mazda RX-8 Base/R3/Sport/GT (04-12) classified in T3 effective 2020-02-01. · T3 adds 2017 Ford Fiesta ST, 1596 cc, 2600 lbs minimum, 245 max tyre, 17×9 wheel, 280 F/254 R brakes. · P2 adds BMW to permitted motorcycle-based engines alongside Kawasaki, Suzuki, Yamaha, Honda. · T2 must have fire system installed; T3 and T4 may have one per GCR 9.3. · T3 Ford Mustang EcoBoost gains three transmission gear ratio options. · T3 Nissan 350Z and 370Z HR engines require 42mm restrictors instead of 37mm; minimum weights increase 50–100 lbs across variants. · T3 Mazda MX-5 Global Cup Miata tire spec clarified to 215/610 R17 BF Goodrich G-Force Slick or wet; touring tire rule removed. · T3 05-10 Mustang GT suspension upgrades allowed: strut tower brace, radiator, spring rate 500 lbs/in front 300 rear, sway bars, dampers, 40 mm restrictor, control arms, shock mounts, driveshaft options, bushings. · T3 BMW SpecE46 updates to SpecE46 rules version 2.6 to 2.7; tyre size to 225 max. · T3 Subaru WRX 02-05 minimum weight drops 100 lbs to 3250. · T3 and T4 Mazda RX-8 Base/R3 (04-12) reclassified to include Sport and GT variants. · Toyota 86 GT variant (2017–) added to T3 and T4 spec lines. · T3 Scion FR-S/Toyota 86 and Subaru BRZ year range extended from 13-17 to 13-20.showhide
T3 Request to Classify Honda Civic Type R in T3 #27840cars addedaddedT3 Honda Civic Type R (2017–) classified: 1996 cc, 3350 lbs, 245 tyres, 20-inch wheels, with HPD parts allowed.
P2 E&O clarification of P2 rear wing requirements #29205aeroaeroP2 rear wing rules clarified: standard wing 6×12 inches, end plates 14-inch square; alternate 1-meter formula wing 110cm wide, 9×18 inches, end plates 14×18 inches.
FF Clarification regarding Honda LC1 ECU implementation #29135wordingwordingFF Honda LC1 ECU implementation date clarified to pending, contingent on SCCA receiving sufficient support materials.
T3 Request to classify 2009 Honda Accord v6 manual #28913cars addedaddedT3 Honda Accord 2009 V6 manual classified with 3471 cc displacement, 3450 lbs minimum weight, 245 tire, 19x9 wheels.
T3 SADEV Sequential Gearbox #28763wordingwordingT3 Mazda MX-5 ND2 Global Cup Miata must meet all ND2 rules; Appendix reference removed.
T3 Request for competition adjustment for the MK5 GTI FSI engine #28802suspension & brakesfastersuspension & brakesT3 Volkswagen GTI, Jetta GLI 06-10 FSI: sway bars to 42mm, springs to 800 lb/in, turbo restrictor 35mm max, R32 brakes allowed, Stoptech 355mm allowed, Neuspeed intake allowed or OEM minus 25 lbs.
T3 Request to Add a Vehicle to the Roster (contd.) #27698wordingunclearRequest to add vehicle to T2, T3, T4 roster; refer to letter #27663 in June 2020 Fastrack for decision.
P2 Classify Elan NP01 in P2 Table 1 #28812cars addedaddedElan NP01 added to P2 Table 1 as Spec Line car with 2000cc displacement and 42mm restrictor.
T3 Request to Classify 2004 Mercedes Benz 320 CLK #27663cars addedadded2004 Mercedes Benz CLK 320 Coupe classified in T4 at 3200 lbs with 3299cc engine, 17-inch wheels, 245 tyres, EIBACH PN# 2563.140 springs allowed.
T3 Request Nissan 350Z Part Number change #28145wordingwordingT3 Nissan 350Z brake kit part numbers specified: NISMO calipers 41001-FR350, rotors 40206-SZ350 and 40207-SZ350.
P2 SCCA Enterprises ESR / P2 engine restrictor testing #28669otheraddedP2 Enterprises Sports Racer now permits 55mm flat plate intake restrictor Part # WM303013 as alternative to SIR.
T3 2015 + Ford EcoBoost Mustang Sway Bars #28398suspension & brakesaddedsuspension & brakesT3 Ford Mustang EcoBoost and V6 sway bars allowed up to 35mm front, 25mm rear.
T3 Z3M Roadster Weight #28437weightfasterweightT3 BMW Z3 M & Coupe 98-99 minimum weight reduced to 3150 lbs.
FF E&O FF Kent Engine alternator language #28204engineaddedengineFF Kent Engine alternator becomes optional instead of not required.
P2 Add ESR inlet restrictor #27869inductionaddedinductionP2 Enterprise Sports Racer 2.3L engine must use SIR or Flat Plate restrictor meeting peak horsepower, sized in whole or 0.5mm increments.
FF Honda Racing HPD low cost ECU proposal #27563engineaddedengineFF permits HPD LC1 ECU with lambda sensor; E1 ECU no longer supported but existing units may continue.
FF Update rain tire designation #28443tyres & wheelsaddedtyres & wheelsFF rain tyres now allow Hoosier W3 Radial 185/60R13 front and 205/60R13 rear.
P2 Request for Fly by Wire Rule Wording Change #28247wordingwordingP2 electronic throttle control wording clarified: ETC permitted if stock ECU throttle pedal activates original throttle shaft mechanism.
T3 Clarify 05-10 V8 Mustang Spring Rates Wording/Adjust Restrictor #28238suspension & brakessuspension & brakesT3 05-10 V8 Mustang allowed parts clarified: strut tower brace, radiator, sway bars, damper kit, max spring rates 500 lbs/in front, 300 lbs/in rear.
T3 Correct Touring 3 05-10 Mustang final drive #28288cars addedaddedT3 Ford Mustang Coupe GT & Shelby GT 4.6L 05-10 adds permitted final drive ratios: 3.31, 3.55 or 3.73.
T3 2006 BMW E90 330i Sedan Classification #26663cars addedaddedT3 adds BMW 330i 2006-2012, 2996 cc, 18×9 wheels, 245 tyres, 3200 lbs minimum.
T3 Please Switch the Solstice GXP as Specified in T2, to T3 #27413cars added -50 lbsfastercars addedPontiac Solstice GXP and Saturn Sky move from T2 to T3; wheels widen to 18x9.5, Sky weight drops to 3200 lbs.
T3 Request to Classify all Mazda RX8 Models in T3/T4 #27606cars addedaddedMazda RX-8 Base/R3/Sport/GT (04-12) classified in T3 effective 2020-02-01.
T3 Request for 2005 Subaru STI Changes #27658tyres & wheels +50 lbs
T3 Request to Classify 2017 Ford Fiesta ST #27700cars addedaddedT3 adds 2017 Ford Fiesta ST, 1596 cc, 2600 lbs minimum, 245 max tyre, 17×9 wheel, 280 F/254 R brakes.
P2 Request for addition of BMW Engine in P2 Engine Table #27821engineaddedengineP2 adds BMW to permitted motorcycle-based engines alongside Kawasaki, Suzuki, Yamaha, Honda.
T3 Clarification of On-Board Fire System for T2 #27183wordingwordingT2 must have fire system installed; T3 and T4 may have one per GCR 9.3.
T3 Mustang Ecoboost and GT Transmission #27439cars addedaddedT3 Ford Mustang EcoBoost gains three transmission gear ratio options.
T3 Nissan 350Z HR Engine Restrictor Plate/Minimum Weight #27442engine +50 lbsslowerengineT3 Nissan 350Z and 370Z HR engines require 42mm restrictors instead of 37mm; minimum weights increase 50–100 lbs across variants.
T3 Request help for the GMX5 #27572tyres & wheelstyres & wheelsT3 Mazda MX-5 Global Cup Miata tire spec clarified to 215/610 R17 BF Goodrich G-Force Slick or wet; touring tire rule removed.
T3 Request for 05-10 Mustang GT Suspension Upgrades #27777suspension & brakesaddedsuspension & brakesT3 05-10 Mustang GT suspension upgrades allowed: strut tower brace, radiator, spring rate 500 lbs/in front 300 rear, sway bars, dampers, 40 mm restrictor, control arms, shock mounts, driveshaft options, bushings.
T3 Please Update the BMW SpecE46 Rules #27781wordingwordingT3 BMW SpecE46 updates to SpecE46 rules version 2.6 to 2.7; tyre size to 225 max.
T3 Request for 02-03 WRX Spec Line Parts #27864weight -100 lbsfasterweightT3 Subaru WRX 02-05 minimum weight drops 100 lbs to 3250.
T3 T4 RX8 Classification Error #27902cars addedaddedT3 and T4 Mazda RX-8 Base/R3 (04-12) reclassified to include Sport and GT variants.
T3 Request to add Toyota 86 GT to Spec Line #27910cars addedaddedToyota 86 GT variant (2017–) added to T3 and T4 spec lines.
T3 Request to add 2018 Subaru BRZ in T3 #27253cars addedaddedT3 Scion FR-S/Toyota 86 and Subaru BRZ year range extended from 13-17 to 13-20.
1:59.563Tyler O'Connor · fastest of 14 · top 5 within 1.4s
2:20.474Jonathan Kotyk · fastest of 14 · top 5 within 6.3s
136.2Derek Ketchie
1:49.111Robert Iversen · fastest of 14 · top 5 within 0.8s
1:50.258Greg Gyann · fastest of 13 · top 5 within 0.4s
149.4Robert Iversen
-30.216squal -10.452s
78.5%qual 91.3%
2:04.918Marshall Mast · fastest of 20 · top 5 within 1.1s
2:05.354Broderick Bauguess · fastest of 20 · top 5 within 1.6s
138.2Scotty B White
-15.120squal +5.355s
89.2%qual 104.5%
41 rule changes (FF: 3, P2: 9, T3: 29)10 cars added · 6 engine · 4 suspension & brakes · 4 weight · 2 aero · 2 tyres & wheels · 1 induction · 8 wording · 4 other · P2 Honda K20A-FD2 non-composite chassis intake restrictor note clarified; restrictor implementation date removed. · T3 Mazda NC MX-5 gains three alternate transmission gear ratio sets as options. · P2 motorcycle engines: Stock restrictor to 35mm, Modified to 34mm; weights up to 1025 and 1125 lbs respectively. B.5 restrictor to 33mm, weight to 1185 lbs. · T2, T3, T4 spare tire and cover removal wording clarified; removable covers now explicitly allowable to remove. · T3 2014-17 Volkswagen GTI gains sway bar spec, spring rate to 800 lb, turbo inlet restrictor 35 mm, R32 brakes, Stoptech 4-piston kit, ECS shield. · P2 cars limited to power application on maximum two wheels. · T3 BMW E36 M3 96-00 now allows alternate sway bars, 35mm front, 27mm rear. · P2 Enterprise minimum weight increased to 1375 lbs.; peak horsepower of sealed ESR engine reduced per CRB specification. · 09-12 Porsche Cayman added to T3 with 2900 cc engine, 3150 lbs minimum weight, 18×9 wheels, 245 tyres. · T3 Chevrolet Camaro LT-I4 Turbo 1LE 2019- added: 1998 cc, 3450 lbs, 245 max tire, 18×10 wheels. · T3 Honda Civic Si 2017- minimum weight drops 100 lbs to 2900. · T3 Honda Civic Si 2017+ with alternate cage classified at 3075 lbs minimum weight with specified HPD parts and cage options. · T3 Volkswagen GTI 2014-2017 classified with 3080 lbs DSG, 3050 lbs manual, 35 mm turbo restrictor, 18×8.5 wheels, 245 tyres. · T3 adds BMW E36 M3 96-00 BMWCCA I Sport, 3152cc, 3100 lbs, 18-inch wheels, 245 tyres. · P2 stock and modified engines get smaller restrictors (35.0mm, 34.0mm, 33.0mm) and heavier minimums (1025, 1125, 1185 lbs). · P2 Line A.1 restrictor reduced from 40mm to 38mm. · T1-LP Ford Mustang GT 5.0L 2018- classified at 3400 lbs with 65mm restrictor, T2 and T3 Mustangs limited to 2015-2017. · 2015+ Subaru WRX classified in T3 at 1998cc, 3275 lbs minimum, 245/18 tires, 35mm turbo inlet restrictor required. · T4 and T3 Mazda MX-5 hardtop rules clarified: any OEM or aftermarket top permitted if retaining OEM silhouette; specific part numbers listed. · T3 Mazda MX-5 NC 06-15 wheel width increases from 7 to 8 inches. · T3 Mazda MX-5 NC 06-15 now allows any aftermarket header. · T3 Saturn Sky intercooler intake diameter increases to 35mm TIR; new calipers and spring rate limits added. · T2, T3, T4 now allow any thermostat serving original equipment intent only. · Subaru Legacy GT/Spec B 05–09 added to T3 with 2457cc, 18×9 wheels, 245 tires, 3300 lbs minimum. · T3 and T4 Mazda MX-5 Miata eligibility capped at 2016–2018 model years. · FF Honda Fit cylinder honing increased to 73.315mm and oversize pistons PN 13020-RB7-Z00 now permitted with matching ring packs. · FF intake manifold thermal wrap now permitted if easily removable for inspection; no coating allowed. · FF clarifies coolant and oil catch tank capacity requirements: coolant minimum one U.S. pint, oil minimum one U.S. quart per system. · T3 Mazdaspeed 3 07-09 front brake disc grows to 320mm vented, rear to 300mm solid. · P2 Spec Line cars now allow 1345cc Hayabusa stock engines at 1050 lb minimum with 30mm restrictor. · P2 Group CN Honda K20A-FD2 55mm intake restrictor implementation delayed from 1 January to 3 March 2019. · P2 Honda K20A-FD2 Group CN must use stock intake manifold, 64mm throttle, 55mm restrictor at 1500 lbs minimum. · T4 Celica GT wheelbase 2600 and 15x7 wheels added; Forte years narrowed; Fiesta ST starts 2014; Fiat 124 years 16-18 added; battery rule clarified. · T3 BMW SpecE46 must conform to Version 2.6 Effective Jan 1, 2019; Appendix N removed from GCR. · T3 Nissan 350Z 03-08 and Spec Z permitted to use Nissan brake kit part number 41000-BRKIT. · T1–T4 spec car classifications clarified with permitted parts, rule conformance versions, and exclusions of other touring modifications. · T2–T4 subframe bushings now permitted to be replaced with non-spherical bushings of any material. · T3: 24 cars lose 50–75 lbs across multiple models, including Camaro, Mustang, Miata, WRX, 370Z, GTI, and others. · T3 Ford Mustang EcoBoost gains two alternate brake kit options: Ford Motorsports 6-piston M2300V 380mm with 100lb penalty, or Brembo 2-piece 355mm rotor with 100lb penalty. · T3 FR-S/86 and BRZ: wheels to 17×9, tyres to 255, weight to 2750 lbs, final drive 4.10 or 4.30. · T3 BMW SpecE46 gains alternate tire option: any DOT up to 225 width permitted.showhide
P2 Update Engine Table Line E notes #27414wordingwordingP2 Honda K20A-FD2 non-composite chassis intake restrictor note clarified; restrictor implementation date removed.
T3 Request Mazda NC MX-5 alternate transmission gear ratios #27155otheraddedT3 Mazda NC MX-5 gains three alternate transmission gear ratio sets as options.
P2 Update P2 Engine Table spec lines to reflect 3/1/2019 #27254engineslowerengineP2 motorcycle engines: Stock restrictor to 35mm, Modified to 34mm; weights up to 1025 and 1125 lbs respectively. B.5 restrictor to 33mm, weight to 1185 lbs.
T3 Request spare tire/wheel clarification #27012wordingfasterT2, T3, T4 spare tire and cover removal wording clarified; removable covers now explicitly allowable to remove.
T3 Request guidance for 2014-2017 MK7 Volkswagen GTI #26866otheraddedT3 2014-17 Volkswagen GTI gains sway bar spec, spring rate to 800 lb, turbo inlet restrictor 35 mm, R32 brakes, Stoptech 4-piston kit, ECS shield.
P2 E&O Transmissions #27006engineslowerengineP2 cars limited to power application on maximum two wheels.
T3 Request BMW e36 M3 sway bar and links #26885suspension & brakesaddedsuspension & brakesT3 BMW E36 M3 96-00 now allows alternate sway bars, 35mm front, 27mm rear.
P2 Request to restrict all cars #26246weightslowerweightP2 Enterprise minimum weight increased to 1375 lbs.; peak horsepower of sealed ESR engine reduced per CRB specification.
T3 Request to properly class base Porsche Cayman #26276cars addedadded09-12 Porsche Cayman added to T3 with 2900 cc engine, 3150 lbs minimum weight, 18×9 wheels, 245 tyres.
T3 Request to classify a 2019 Chevrolet Camaro LT-I4 Turbo 1LE #25731cars addedaddedT3 Chevrolet Camaro LT-I4 Turbo 1LE 2019- added: 1998 cc, 3450 lbs, 245 max tire, 18×10 wheels.
T3 T3 Civic Si weight change #26294weightfasterweightT3 Honda Civic Si 2017- minimum weight drops 100 lbs to 2900.
T3 Class Civic Si 2017+ w/ alternate cage #26449cars addedaddedT3 Honda Civic Si 2017+ with alternate cage classified at 3075 lbs minimum weight with specified HPD parts and cage options.
T3 Classify 2014-2017 MK7 Volkswagen GTI for T3 #26695cars addedaddedT3 Volkswagen GTI 2014-2017 classified with 3080 lbs DSG, 3050 lbs manual, 35 mm turbo restrictor, 18×8.5 wheels, 245 tyres.
T3 Request to allow E36 M3 in T3 prepared to BMWCCA I sport #25195cars addedaddedT3 adds BMW E36 M3 96-00 BMWCCA I Sport, 3152cc, 3100 lbs, 18-inch wheels, 245 tyres.
P2 Change Engine Table Lines B.1 & B.5 #25777inductionslowerinductionP2 stock and modified engines get smaller restrictors (35.0mm, 34.0mm, 33.0mm) and heavier minimums (1025, 1125, 1185 lbs).
P2 Change Line A.1 restrictor size #26429engineslowerengineP2 Line A.1 restrictor reduced from 40mm to 38mm.
T3 Request Mustang GT Limited Prep 2018 Classification #24431cars addedaddedT1-LP Ford Mustang GT 5.0L 2018- classified at 3400 lbs with 65mm restrictor, T2 and T3 Mustangs limited to 2015-2017.
T3 Classify 2015+ WRX #25832cars addedadded2015+ Subaru WRX classified in T3 at 1998cc, 3275 lbs minimum, 245/18 tires, 35mm turbo inlet restrictor required.
T3 Correct Mazda MX-5 Hard Top Notes #26137wordingwordingT4 and T3 Mazda MX-5 hardtop rules clarified: any OEM or aftermarket top permitted if retaining OEM silhouette; specific part numbers listed.
T3 Request to allow T3 06-15 Miata 17x8 wheels #26161tyres & wheelsfastertyres & wheelsT3 Mazda MX-5 NC 06-15 wheel width increases from 7 to 8 inches.
T3 Request T3 06-15 Miata header #26162otheraddedT3 Mazda MX-5 NC 06-15 now allows any aftermarket header.
T3 Request Pontiac GXP same allowances to Saturn Sky #26175aeroaddedaeroT3 Saturn Sky intercooler intake diameter increases to 35mm TIR; new calipers and spring rate limits added.
T3 Consider opening class rules to allow any thermostat #26187engineaddedengineT2, T3, T4 now allow any thermostat serving original equipment intent only.
T3 2005-2009 Legacy GT/Spec B #26384cars addedaddedSubaru Legacy GT/Spec B 05–09 added to T3 with 2457cc, 18×9 wheels, 245 tires, 3300 lbs minimum.
T3 Cap 2016 Mazda Miata year at 2018 #26388cars addedremovedcars addedT3 and T4 Mazda MX-5 Miata eligibility capped at 2016–2018 model years.
FF Request for Oversize Honda Fit Pistons #25810enginefasterengineFF Honda Fit cylinder honing increased to 73.315mm and oversize pistons PN 13020-RB7-Z00 now permitted with matching ring packs.
FF Heat Shield - Fit Intake #26102aeroaddedaeroFF intake manifold thermal wrap now permitted if easily removable for inspection; no coating allowed.
FF Request catch cans/tanks clarification #26158wordingwordingFF clarifies coolant and oil catch tank capacity requirements: coolant minimum one U.S. pint, oil minimum one U.S. quart per system.
T3 Request correction on brake sizes #26170suspension & brakessuspension & brakesT3 Mazdaspeed 3 07-09 front brake disc grows to 320mm vented, rear to 300mm solid.
P2 Request to Allow 1345cc Hayabusa Engines for Spec Line P2 Cars #25595cars addedaddedP2 Spec Line cars now allow 1345cc Hayabusa stock engines at 1050 lb minimum with 30mm restrictor.
P2 Change CN inlet restrictor implementation date #25816wordingwordingP2 Group CN Honda K20A-FD2 55mm intake restrictor implementation delayed from 1 January to 3 March 2019.
P2 Clarify Honda K20A-FD2 parts requirement #25950engineslowerengineP2 Honda K20A-FD2 Group CN must use stock intake manifold, 64mm throttle, 55mm restrictor at 1500 lbs minimum.
T3 Errors, Omissions, and Updates (Various) #22414wordingwordingT4 Celica GT wheelbase 2600 and 15x7 wheels added; Forte years narrowed; Fiesta ST starts 2014; Fiat 124 years 16-18 added; battery rule clarified.
T3 Request to update SpecE46 Appendix N. with 2019 Rules #25722wordingunclearT3 BMW SpecE46 must conform to Version 2.6 Effective Jan 1, 2019; Appendix N removed from GCR.
T3 Request Alternative Nissan Brake Parts - 350Z #25747otheraddedT3 Nissan 350Z 03-08 and Spec Z permitted to use Nissan brake kit part number 41000-BRKIT.
T3 Add Clarification to Spec Car Classifications Vehicle Spec #25774wordingwordingT1–T4 spec car classifications clarified with permitted parts, rule conformance versions, and exclusions of other touring modifications.
T3 Clarify Subframe Bushings Permitted for T2-T4 #25800suspension & brakesaddedsuspension & brakesT2–T4 subframe bushings now permitted to be replaced with non-spherical bushings of any material.
T3 Additional weight adjustments for T3 cars T3 weight loss #25803weightfasterweightT3: 24 cars lose 50–75 lbs across multiple models, including Camaro, Mustang, Miata, WRX, 370Z, GTI, and others.
T3 Request for Alternate EcoBoost Mustang Brakes #25813suspension & brakesaddedsuspension & brakesT3 Ford Mustang EcoBoost gains two alternate brake kit options: Ford Motorsports 6-piston M2300V 380mm with 100lb penalty, or Brembo 2-piece 355mm rotor with 100lb penalty.
T3 Request to Add the FR-S/86 and BRZ Spec Lines to T3 #25888weightfasterweightT3 FR-S/86 and BRZ: wheels to 17×9, tyres to 255, weight to 2750 lbs, final drive 4.10 or 4.30.
T3 Request to Clarify BMW SpecE46 Tire Verbiage #26027tyres & wheelsaddedtyres & wheelsT3 BMW SpecE46 gains alternate tire option: any DOT up to 225 width permitted.
Every event the class ran, at any track, oldest to newest on the chart and newest first in the table. Each point is the class's best lap as a share of FF's best on the same day: the weather and the day cancel out, so one figure compares across years where lap times cannot; a class that suits one track more than another still reads differently there. It still moves when the yardstick's own balance changes or its field thins, and an event the yardstick did not run has no point. A best from fewer than three cars is greyed. The rule changes that took effect between two events are folded between their rows.