BoP Labbeta

BoP Lab / Classes / T2

T2 vs T3 vs FP pace at every track

Lap times across years say as much about the weather as the class. % of T2 is each class's best lap as a share of T2'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.

Class · click a class to switch, + to compare alongside (up to 4)
AS+B-Spec+EP+FA+FC+FE2+FF+vsFP×FV+FX+GT1+GT2+GTX+HP+P+P2+SM+SMX+SRF3+STL+STU+T1+T2×vsT3×T4+Show 51 inactive classes
Series
Reference · what % is measured against, 12 events
Tracks · untick to narrow

Closest to the field: T2 100.0% of T2 Kurt Rezzetano, Daytona International Speedway Runoffs 2015 race · T3 67.3% of T2 Mark Drennan, Sonoma Raceway Runoffs 2018 qualifying · FP 102.3% of T2 Joe Huffaker, Sonoma Raceway Runoffs 2018 race

1:402:002:202:4061 rule changes between Runoffs 2018 and Runoffs 201961 ▾75 rule changes between Runoffs 2019 and Runoffs 202075 ▾70 rule changes between Runoffs 2020 and Runoffs 202170 ▾76 rule changes between Runoffs 2021 and Runoffs 202276 ▾51 rule changes between Runoffs 2022 and Runoffs 202351 ▾93 rule changes between Runoffs 2023 and Runoffs 202493 ▾70 rule changes between Runoffs 2024 and Runoffs 202570 ▾92 rule changes between Runoffs 2025 and Runoffs 202692 ▾T2 race best at Runoffs 2015: 2:01.077 (Kurt Rezzetano)T2 race best at Runoffs 2016: 1:32.691 (John M Buttermore)T2 race best at Runoffs 2017: 1:48.769 (John M Buttermore)T2 race best at Runoffs 2018: 1:45.999 (John Kachadurian)T2 race best at Runoffs 2019: 1:58.551 (Cooper I MacNeil)T2 race best at Runoffs 2020: 2:26.803 (Kurt Rezzetano)T2 race best at Runoffs 2021: 1:48.474 (Kurt Rezzetano)T2 race best at Runoffs 2022: 2:04.756 (Kurt Rezzetano)T2 race best at Runoffs 2023: 2:01.201 (Kurt Rezzetano)T2 race best at Runoffs 2024: 2:23.261 (Kurt Rezzetano)T2 race best at Runoffs 2025: 2:23.483 (Kurt Rezzetano)T2 race best at Runoffs 2026: 2:23.141 (Scotty B White)T2 qualifying best at Runoffs 2015: 2:00.172 (Kurt Rezzetano)T2 qualifying best at Runoffs 2016: 1:31.563 (Preston Calvert)T2 qualifying best at Runoffs 2017: 1:48.618 (John M Buttermore)T2 qualifying best at Runoffs 2018: 1:45.032 (John Kachadurian)T2 qualifying best at Runoffs 2019: 1:57.537 (Cooper I MacNeil)T2 qualifying best at Runoffs 2020: 2:24.195 (Alan Kossof)T2 qualifying best at Runoffs 2021: 1:47.509 (Kurt Rezzetano)T2 qualifying best at Runoffs 2022: 2:00.276 (Kurt Rezzetano)T2 qualifying best at Runoffs 2023: 1:59.504 (Kurt Rezzetano)T2 qualifying best at Runoffs 2024: 2:22.117 (Kurt Rezzetano)T2 qualifying best at Runoffs 2025: 2:23.351 (Kurt Rezzetano)T2 qualifying best at Runoffs 2026: 2:23.977 (Scotty B White)T3 race best at Runoffs 2015: 2:08.363 (Tom Wickersham)T3 race best at Runoffs 2016: 1:37.371 (Robert Schader)T3 race best at Runoffs 2017: 1:53.286 (Charles Hurley)T3 race best at Runoffs 2018: 1:49.610 (Mark Drennan)T3 race best at Runoffs 2019: 2:05.354 (Broderick Bauguess)T3 race best at Runoffs 2020: 2:31.688 (Marshall Mast)T3 race best at Runoffs 2021: 1:52.701 (Breton Williams)T3 race best at Runoffs 2022: 2:27.626 (Marshall Mast)T3 race best at Runoffs 2023: 2:05.854 (Chris Hart)T3 race best at Runoffs 2024: 2:29.191 (Marshall Mast)T3 race best at Runoffs 2025: 2:29.898 (Marshall Mast)T3 race best at Runoffs 2026: 2:27.540 (Scotty B White)T3 qualifying best at Runoffs 2015: 2:08.573 (Scotty B White)T3 qualifying best at Runoffs 2016: 1:36.741 (Charles Hurley)T3 qualifying best at Runoffs 2017: 1:52.214 (Rob Hines)Off the chart: T3 qualifying best at Runoffs 2018: 1:10.656 (Mark Drennan)T3 qualifying best at Runoffs 2019: 2:04.918 (Marshall Mast)T3 qualifying best at Runoffs 2020: 2:29.757 (Marshall Mast)T3 qualifying best at Runoffs 2021: 1:51.591 (Marshall Mast)T3 qualifying best at Runoffs 2022: 2:04.223 (Jason Ott)T3 qualifying best at Runoffs 2023: 2:04.520 (Steve Ott)T3 qualifying best at Runoffs 2024: 2:25.450 (Scotty B White)T3 qualifying best at Runoffs 2025: 2:28.676 (Nic Hammann)T3 qualifying best at Runoffs 2026: 2:27.890 (Nic Hammann)FP race best at Runoffs 2015: 2:12.419 (Kevin Ruck)FP race best at Runoffs 2016: 1:36.399 (John Walker)FP race best at Runoffs 2017: 1:53.007 (Eric Prill)FP race best at Runoffs 2018: 1:48.481 (Joe Huffaker)FP race best at Runoffs 2019: 2:08.076 (Eric Prill)FP race best at Runoffs 2020: 2:34.033 (Kevin Ruck)FP race best at Runoffs 2021: 1:59.933 (Cliff Ira)FP race best at Runoffs 2022: 2:17.641 (Mason Workman)FP race best at Runoffs 2023: 2:07.787 (Cliff Ira)FP race best at Runoffs 2024: 2:33.246 (Kevin Ruck)FP race best at Runoffs 2025: 2:34.271 (Chris Bovis)FP race best at Runoffs 2026: 2:33.240 (David Strittmatter)FP qualifying best at Runoffs 2015: 2:11.009 (Kevin Ruck)FP qualifying best at Runoffs 2016: 1:35.938 (John Walker)FP qualifying best at Runoffs 2017: 1:52.091 (Eric Prill)FP qualifying best at Runoffs 2018: 1:47.588 (Joe Huffaker)FP qualifying best at Runoffs 2019: 2:07.436 (Eric Prill)FP qualifying best at Runoffs 2020: 2:31.414 (Ethan Shippert)FP qualifying best at Runoffs 2021: 1:51.082 (Craig Chima)FP qualifying best at Runoffs 2022: 2:06.217 (Eric Prill)FP qualifying best at Runoffs 2023: 2:08.248 (Cliff Ira)FP qualifying best at Runoffs 2024: 2:32.327 (Cliff Ira)FP qualifying best at Runoffs 2025: 2:32.395 (David Strittmatter)FP qualifying best at Runoffs 2026: 2:33.275 (Stephen Simonds)Daytona International Speedway · Runoffs 2015R2015Mid-Ohio Sports Car Course · Runoffs 2016R2016Indianapolis Motor Speedway · Runoffs 2017R2017Sonoma Raceway · Runoffs 2018R2018Virginia International Raceway · Runoffs 2019R2019Road America · Runoffs 2020R2020Indianapolis Motor Speedway · Runoffs 2021R2021Virginia International Raceway · Runoffs 2022R2022Virginia International Raceway · Runoffs 2023R2023Road America · Runoffs 2024R2024Road America · Runoffs 2025R2025Road America · Runoffs 2026R2026
T2T3FPsolid race · dashed qualifying · slower is lower
100%102%104%106%108%110%61 rule changes between Runoffs 2018 and Runoffs 201961 ▾75 rule changes between Runoffs 2019 and Runoffs 202075 ▾70 rule changes between Runoffs 2020 and Runoffs 202170 ▾76 rule changes between Runoffs 2021 and Runoffs 202276 ▾51 rule changes between Runoffs 2022 and Runoffs 202351 ▾93 rule changes between Runoffs 2023 and Runoffs 202493 ▾70 rule changes between Runoffs 2024 and Runoffs 202570 ▾92 rule changes between Runoffs 2025 and Runoffs 202692 ▾T2 race best at Runoffs 2015: 100.0% of T2's (Kurt Rezzetano)T2 race best at Runoffs 2016: 100.0% of T2's (John M Buttermore)T2 race best at Runoffs 2017: 100.0% of T2's (John M Buttermore)T2 race best at Runoffs 2018: 100.0% of T2's (John Kachadurian)T2 race best at Runoffs 2019: 100.0% of T2's (Cooper I MacNeil)T2 race best at Runoffs 2020: 100.0% of T2's (Kurt Rezzetano)T2 race best at Runoffs 2021: 100.0% of T2's (Kurt Rezzetano)T2 race best at Runoffs 2022: 100.0% of T2's (Kurt Rezzetano)T2 race best at Runoffs 2023: 100.0% of T2's (Kurt Rezzetano)T2 race best at Runoffs 2024: 100.0% of T2's (Kurt Rezzetano)T2 race best at Runoffs 2025: 100.0% of T2's (Kurt Rezzetano)T2 race best at Runoffs 2026: 100.0% of T2's (Scotty B White)T2 qualifying best at Runoffs 2015: 100.0% of T2's (Kurt Rezzetano)T2 qualifying best at Runoffs 2016: 100.0% of T2's (Preston Calvert)T2 qualifying best at Runoffs 2017: 100.0% of T2's (John M Buttermore)T2 qualifying best at Runoffs 2018: 100.0% of T2's (John Kachadurian)T2 qualifying best at Runoffs 2019: 100.0% of T2's (Cooper I MacNeil)T2 qualifying best at Runoffs 2020: 100.0% of T2's (Alan Kossof)T2 qualifying best at Runoffs 2021: 100.0% of T2's (Kurt Rezzetano)T2 qualifying best at Runoffs 2022: 100.0% of T2's (Kurt Rezzetano)T2 qualifying best at Runoffs 2023: 100.0% of T2's (Kurt Rezzetano)T2 qualifying best at Runoffs 2024: 100.0% of T2's (Kurt Rezzetano)T2 qualifying best at Runoffs 2025: 100.0% of T2's (Kurt Rezzetano)T2 qualifying best at Runoffs 2026: 100.0% of T2's (Scotty B White)T3 race best at Runoffs 2015: 106.0% of T2's (Tom Wickersham)T3 race best at Runoffs 2016: 105.0% of T2's (Robert Schader)T3 race best at Runoffs 2017: 104.2% of T2's (Charles Hurley)T3 race best at Runoffs 2018: 103.4% of T2's (Mark Drennan)T3 race best at Runoffs 2019: 105.7% of T2's (Broderick Bauguess)T3 race best at Runoffs 2020: 103.3% of T2's (Marshall Mast)T3 race best at Runoffs 2021: 103.9% of T2's (Breton Williams)Off the chart: T3 race best at Runoffs 2022: 118.3% of T2's (Marshall Mast)T3 race best at Runoffs 2023: 103.8% of T2's (Chris Hart)T3 race best at Runoffs 2024: 104.1% of T2's (Marshall Mast)T3 race best at Runoffs 2025: 104.5% of T2's (Marshall Mast)T3 race best at Runoffs 2026: 103.1% of T2's (Scotty B White)T3 qualifying best at Runoffs 2015: 107.0% of T2's (Scotty B White)T3 qualifying best at Runoffs 2016: 105.7% of T2's (Charles Hurley)T3 qualifying best at Runoffs 2017: 103.3% of T2's (Rob Hines)Off the chart: T3 qualifying best at Runoffs 2018: 67.3% of T2's (Mark Drennan)T3 qualifying best at Runoffs 2019: 106.3% of T2's (Marshall Mast)T3 qualifying best at Runoffs 2020: 103.9% of T2's (Marshall Mast)T3 qualifying best at Runoffs 2021: 103.8% of T2's (Marshall Mast)T3 qualifying best at Runoffs 2022: 103.3% of T2's (Jason Ott)T3 qualifying best at Runoffs 2023: 104.2% of T2's (Steve Ott)T3 qualifying best at Runoffs 2024: 102.3% of T2's (Scotty B White)T3 qualifying best at Runoffs 2025: 103.7% of T2's (Nic Hammann)T3 qualifying best at Runoffs 2026: 102.7% of T2's (Nic Hammann)FP race best at Runoffs 2015: 109.4% of T2's (Kevin Ruck)FP race best at Runoffs 2016: 104.0% of T2's (John Walker)FP race best at Runoffs 2017: 103.9% of T2's (Eric Prill)FP race best at Runoffs 2018: 102.3% of T2's (Joe Huffaker)FP race best at Runoffs 2019: 108.0% of T2's (Eric Prill)FP race best at Runoffs 2020: 104.9% of T2's (Kevin Ruck)FP race best at Runoffs 2021: 110.6% of T2's (Cliff Ira)FP race best at Runoffs 2022: 110.3% of T2's (Mason Workman)FP race best at Runoffs 2023: 105.4% of T2's (Cliff Ira)FP race best at Runoffs 2024: 107.0% of T2's (Kevin Ruck)FP race best at Runoffs 2025: 107.5% of T2's (Chris Bovis)FP race best at Runoffs 2026: 107.1% of T2's (David Strittmatter)FP qualifying best at Runoffs 2015: 109.0% of T2's (Kevin Ruck)FP qualifying best at Runoffs 2016: 104.8% of T2's (John Walker)FP qualifying best at Runoffs 2017: 103.2% of T2's (Eric Prill)FP qualifying best at Runoffs 2018: 102.4% of T2's (Joe Huffaker)FP qualifying best at Runoffs 2019: 108.4% of T2's (Eric Prill)FP qualifying best at Runoffs 2020: 105.0% of T2's (Ethan Shippert)FP qualifying best at Runoffs 2021: 103.3% of T2's (Craig Chima)FP qualifying best at Runoffs 2022: 104.9% of T2's (Eric Prill)FP qualifying best at Runoffs 2023: 107.3% of T2's (Cliff Ira)FP qualifying best at Runoffs 2024: 107.2% of T2's (Cliff Ira)FP qualifying best at Runoffs 2025: 106.3% of T2's (David Strittmatter)FP qualifying best at Runoffs 2026: 106.5% of T2's (Stephen Simonds)Daytona International Speedway · Runoffs 2015R2015Mid-Ohio Sports Car Course · Runoffs 2016R2016Indianapolis Motor Speedway · Runoffs 2017R2017Sonoma Raceway · Runoffs 2018R2018Virginia International Raceway · Runoffs 2019R2019Road America · Runoffs 2020R2020Indianapolis Motor Speedway · Runoffs 2021R2021Virginia International Raceway · Runoffs 2022R2022Virginia International Raceway · Runoffs 2023R2023Road America · Runoffs 2024R2024Road America · Runoffs 2025R2025Road America · Runoffs 2026R2026
T2T3FPsolid race · dashed qualifying · each class's best lap as a share of T2's at the same event (the reference class, changeable above); 100% is level, less is quicker, so up the chart is quicker
EventT2T3FP
Qual best Race best Trap Qual best Race best Trap vs T2 % of T2 Qual best Race best Trap vs T2 % of T2 
Road America Runoffs 20262026-09-282:23.977Scotty B White · fastest of 22 · top 5 within 2.5s+0.626s (+0.44%)2:23.141Scotty B White · fastest of 18 · top 5 within 2.7s-0.342s (-0.24%)147.2Ami Wilson-6.9 mph (-4.5%)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%)+4.399squal +3.913s103.1%qual 102.7%2:33.275Stephen Simonds · fastest of 26 · top 5 within 1.0s+0.880s (+0.58%)2:33.240David Strittmatter · fastest of 25 · top 5 within 1.7s-1.031s (-0.67%)132.4David Strittmatter±0.0 mph (±0.0%)+10.099squal +9.298s107.1%qual 106.5%
92 rule changes (T2: 26, T3: 32, FP: 34)26 weight · 12 induction · 10 engine · 10 suspension & brakes · 9 tyres & wheels · 8 cars added · 3 aero · 1 removed · 4 wording · 9 othershowhide
  • T2 TCR Data Points - BoP #40508weight +300 lbs
  • T3 T3 Subaru STI 2015-2021 #40708weight
  • FP Mini Cooper Compression Ratio #40517engine
  • T3 Porsche 986 Boxster S (00-04) Spec Line Additions for Suspension #40307suspension & brakes
  • T3 Allow a Change in Rear Axle #40507other
  • FP 1996-2000 Honda Civic (CX, DX, VP, LX) with Engine Code D16Y7 #40322engine
  • FP 1275 Midget/Sprit Alternate intake manifold E/O #40370induction
  • FP HP Honda Civic (92-95) #40464weight -70 lbs
  • T2 2023 TCR Hyundais #40278cars added
  • T3 Ford FR500S #40031cars added
  • T3 Audi S4 T3 #40241suspension & brakes
  • T3 VW DSG Missing in 2015-2018 VW Golf R Spec Line #40304weight
  • T2 2015+ Ecoboost Mustang #40005weight -100 lbs
  • T2 C6 Corvette - All Body Trims Requested #40174aero
  • T2 T2-TCR Table Mazda 3 #40209tyres & wheels
  • T3 2015+ Mustang Ecoboost Performance #40036suspension & brakes
  • T3 Review Spec Lines for Camaro V-6 #40149removed -150 lbs
  • T3 Power of GR86/BRZ in T3 #40169weight -225 lbs
  • T3 Allow T3 Ford Mustang 4.6 to Use the Coyote MT-82 6 speed. #40190other
  • T3 Porsche 986S Boxster S (2000-2004) Minimum Weight #40196weight
  • FP Miata track width - errors and omissions #39976wording
  • FP GCR Spec Line Correction #39977induction
  • FP CGR Spec Line Weight Correction #39978weight
  • FP Triumph GT6 Spec Change. #40098induction
  • FP Request to Classify BMW E21 320i #40110cars added
  • FP BMW 318is 84-85 engine displacement correction #40116engine
  • T3 2019 Mustang 2.3L Ecoboost Request #39935weight -50 lbs
  • T3 2013 Audi S4 #39983induction
  • T3 Request Update to T3 Camaro V6 (10-15) Spec Line #40007tyres & wheels
  • T3 S550 Mustang 3.7 #40010aero
  • T2 14-17 BMW 435i Brake Approval Request #39910suspension & brakes
  • T2 Porsche Cayman S Spec Lines Needed for Atlanta HST #39947engine
  • T2 Please address loopholes in T2 TCR #40002weight
  • T3 350Z #39843induction
  • FP Correct Valve Sizes on FP Fiat x19 1300 and 1500 #39850engine
  • FP Dual Carburetor Adjustments #39851induction
  • T2 BMW 240i Permitted Tune #39861other
  • T3 Nissan 370Z Tire Size #39701tyres & wheels
  • T3 986 Boxster S Wheel Width #39819tyres & wheels
  • T3 Request Update to T3 Camaro V6 (10-15) Spec Line #39839tyres & wheels
  • T3 Audi S4 #39870cars added
  • FP Request Toyota 5E Series Engines #38208engine
  • FP Request for Toyota 4E Series Engines #38209engine
  • FP Dual Carbs for the Fiat X1/9 #39593induction
  • T2 Request to Add 2014-2017 435i to T2 #38991cars added
  • T2 Consideration for Nissan Z & NISMO Z to Touring 2 Class #39296cars added
  • T2 Allow Alt Bushing Material in Toe Links #39607suspension & brakes
  • T2 Request for Classification of MG6 TCR in T2-TCR Class #39702cars added
  • 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 & brakes
  • T2 Alternate Placement of Fuse Panel and Electronics Request #39370other
  • T2 Rebalance Blackwing Cadillac T2 for 2026 #39426weight -50 lbs
  • T2 C6 LS2 Corvette Parity Request #39472induction
  • T2 T2 Tire Sizing #39490weight -25 lbs
  • T2 Rear Spoiler for Mustang GT S550 (15-23) #39499aero
  • T2 Clarify T4 Brake Rotor Allowance #39503suspension & brakes
  • 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 SpecE46 Tire Sizing #39292tyres & wheels
  • T3 Alternate Placement of Fuse Panel and Electronics Request #39370other
  • T3 Clarify T4 Brake Rotor Allowance #39503suspension & brakes
  • FP TR2 Notes E&O #39180weight
  • FP Balance of Power #39187weight +50 lbs
  • FP Competition Adjustment Request #39259weight -80 lbs
  • FP Factory Roll Bar Removal on VW Convertible #39268wording
  • FP FP Parity Request #39325weight +50 lbs
  • FP Adjust former-GTL Honda's with B/D-Series Engines #39374engine
  • T2 Help the 2011-2014 s197Mustang GT and Boss302 Less Restriction #38523induction
  • T2 Improving Competitiveness of Gen 5 Camaro SS #39021weight -50 lbs
  • T2 Adjust T2 Darkhorse R #39346weight
  • T3 T3 Ecoboost Mustang clarification #39236suspension & brakes
  • FP Please Lower Weight of 280Z #38871weight -160 lbs
  • FP Miata Weight Adjustment Follow Up #38949weight -25 lbs
  • FP Weight Break for 1098 Midget / Sprite #38970weight -80 lbs
  • FP HP Volvo 142 spec omission #38994engine
  • FP HP Mini DOHC 1.6 #38996engine
  • FP 83-88 FP Scirocco Spec Line Creation #38997cars added
  • FP Add to Rabbit description #39019wording
  • FP Clean-up 9.1.5.E.7e #39025suspension & brakes
  • FP Add TB size to Ford Mustang (94-98) Spec Line #39130induction
  • FP Correct Existing VW Scirocco Spec Line #39140weight
  • T2 ND Gearset Request for T4 #39166other
  • T2 ND Spec Lines Wrong PT#'s #39170weight
  • T2 Touring 2 Post-Runoffs BOP Adjustments and Changes #39274induction -50 lbs
  • T2 Adjust rev limit on Spec Corvette in T2 #39282other
  • T3 Make the S2000 Competitive Again #38470tyres & wheels
  • T3 ND Gearset Request for T4 #39166other
  • T3 ND Spec Lines Wrong PT#'s #39170weight
  • FP HP Plymouth Arrow spec omission #38995wording
  • FP Add Wheel Diameter to Appendix G #39008tyres & wheels
  • FP Add TB ID tolerance to general Prod rules #39009induction
Road America Runoffs 20252025-09-292:23.351Kurt Rezzetano · fastest of 11 · top 5 within 3.1s+1.234s (+0.87%)2:23.483Kurt Rezzetano · fastest of 10 · top 5 within 2.9s+0.222s (+0.15%)154.1John Heinricy+4.8 mph (+3.2%)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%)+6.415squal +5.325s104.5%qual 103.7%2:32.395David Strittmatter · fastest of 20 · top 5 within 2.9s+0.068s (+0.04%)2:34.271Chris Bovis · fastest of 19 · top 5 within 1.8s+1.025s (+0.67%)132.4David Strittmatter-1.1 mph (-0.8%)+10.788squal +9.044s107.5%qual 106.3%
70 rule changes (T2: 29, T3: 24, FP: 17)14 induction · 14 weight · 12 cars added · 7 tyres & wheels · 5 engine · 5 suspension & brakes · 2 removed · 4 wording · 7 othershowhide
  • T2 Incorrect Touring Heading #38451wording
  • T2 Clarifications needed to BMW M2 CS cup line #38536tyres & wheels
  • T2 Fix brake allowance supersessions. #38554suspension & brakes
  • T2 C5 Corvette correction #38782induction
  • T3 Incorrect Touring Heading #38451wording
  • FP BMW Z4 update #38490induction
  • FP EP Fiat 124 Spider Competition Adjustment Request #38498weight -50 lbs
  • T3 correct letter 37421 #38204wording
  • FP Base Weight Adjustment for H-Production X1/9 Spec Lines #38255weight -50 lbs
  • T2 C6 T-2 Corvette 6 Liter Engine Restrictor #37490induction
  • T2 370Z Mid link Replacement for True Coil Overs and OEM Wheel Size #38014tyres & wheels
  • T2 T2 Cadillac tire #38210tyres & wheels
  • T3 S550 Mustang #38061weight -50 lbs
  • T3 correct letter 37421 #38204wording
  • FP Request for Classification of Chevrolet Spark #37755cars added
  • FP Request to Lower Ford Festiva Minimum Weight to 1600 LBS #37939weight -100 lbs
  • T2 Please class the Darkhorse R in T2 #37295cars added
  • T2 T2 350Z Spec Line Cleanup #37603weight
  • T3 SpecE46 Tire Change #37421tyres & wheels
  • T3 S197 Mustang V6 in T3 #37594weight -25 lbs
  • FP Request Competition Adjustment to BMW Z3 2.5L #37120induction
  • FP FP Class Adjustments #37458weight
  • FP Interpretation of Production Rules on Mirrors #37235other
  • FP Weight Reduction for Honda S2000 #37466weight
  • FP Mazda 1999 Miata 1.8L #37488weight -50 lbs
  • FP Errors & Omissions #37648cars added
  • FP GTL/FP consolidation 2025 Rules #37659induction
  • T2 T2 BOP #37312induction
  • FP Effective date for Jan 2025 GCR updates #37654induction
  • T2 Mustang Update backdate #37275removed
  • T2 BOP Adjustment for 2016 - Camaro SS/1LE #37434weight +100 lbs
  • T2 BMW M235iR TCS CHANGE REQUEST #37470other
  • T2 Request to Classify Club Spec in Appropriate Touring Classes #37523cars added
  • T3 350z BOP #37427induction
  • T3 Request to Classify Club Spec in Appropriate Touring Classes #37523cars added
  • FP Request to Reduce Weight of BMW 325i/is E30 (84-91) Spec Line #37119weight -50 lbs
  • FP Fix Error in Spridget Spec Line #37437engine
  • FP Create ruleset that allows GTL cars to run in FP #37485other
  • T2 Remove spec lines that have expired #37269induction
  • T2 BoP for the Various Mustangs #37185weight -50 lbs
  • T2 Spec Corvette Line Clarification. #37441weight
  • T3 Remove spec lines that have expired #37269induction
  • T3 Request to Move Spec Mustang to Touring 3 (from T2) #37080cars added
  • T3 3.7 Mustangs BoP #37186induction
  • T2 Redundant Verbiage Regarding Mustang Spec Lines for Driveshaft #36484suspension & brakes
  • T2 Request Less Restriction for Ls-3 Engined C6 Corvette #36810induction
  • T2 Fuel Emissions Components #37076engine
  • T2 fix brake wording #37129suspension & brakes
  • T2 Evaporative emissions systems #37130engine
  • T2 Move Spec Boxster to T4 #37158cars added
  • T2 Corvette Wheels #37169tyres & wheels
  • T2 BMW 320i Spec Line #37204other
  • T2 Classification for a 2005 Cadillac CTS 3.6 liter 6 speed manual #37224cars added
  • T2 Please Consider Allowing Update to the C5 Corvette #37298induction
  • T2 Major error in lane, but nobody ran it. #37302removed
  • T3 Amend TIR Placement on VW #36175induction
  • T3 Redundant Verbiage Regarding Mustang Spec Lines for Driveshaft #36484suspension & brakes
  • T3 Fuel Emissions Components #37076engine
  • T3 fix brake wording #37129suspension & brakes
  • T3 Evaporative emissions systems #37130engine
  • T3 Allow Spec MX5 upgrade kit for 2009-11 RX8 S2 Transmision #37140other
  • T3 Move Spec Boxster to T4 #37158cars added
  • T3 BMW 320i Spec Line #37204other
  • T3 Classification for a 2005 Cadillac CTS 3.6 liter 6 speed manual #37224cars added
  • T3 Request to Classify BMWs #37226cars added
  • T3 Make adjustments to the 2015 STI Spec line #37246tyres & wheels
  • T3 class a civic #37294cars added
  • T3 Older STI in T3 #37300weight -100 lbs
  • FP 1275 HP Spridget Level 2 Only #36518other
  • T2 Spec Corvette Change for T2 #37127tyres & wheels
Road America Runoffs 20242024-10-012:22.117Kurt Rezzetano · fastest of 8 · top 5 within 2.7s-2.078s (-1.44%)2:23.261Kurt Rezzetano · fastest of 7 · top 5 within 3.0s-3.542s (-2.41%)149.3Scotty B White+2.0 mph (+1.3%)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%)+5.930squal +3.333s104.1%qual 102.3%2:32.327Cliff Ira · fastest of 26 · top 5 within 2.1s+0.913s (+0.60%)2:33.246Kevin Ruck · fastest of 24 · top 5 within 1.4s-0.787s (-0.51%)133.5David Strittmatter+0.3 mph (+0.2%)+9.985squal +10.210s107.0%qual 107.2%
93 rule changes (T2: 31, T3: 41, FP: 21)26 weight · 15 induction · 12 suspension & brakes · 8 cars added · 5 tyres & wheels · 4 engine · 4 wording · 19 othershowhide
  • FP Errors/emissions Honda Civic/CRX #36700wording
  • FP Errant entry in HP production line item #36231other
  • T2 Errors #36214induction -75 lbs
  • T2 Subaru Appeal #36258other
  • T2 S550 Brakes #36571suspension & brakes
  • T3 Honda Civic Si (2017+) #36249weight
  • T3 Subaru Reliability Help #36284other
  • T3 spec line for 36073 #36338cars added
  • T3 36131 #36339cars added
  • T2 Mustang T2/T3 #35877other
  • T2 S550 Brakes #35926suspension & brakes
  • T2 T2-T4 Driveshaft Mistake...? #36050weight
  • T2 request for allowance of 6 piston calipers for T2 C5 corvettes #36126other
  • T2 B8/8.5 Audi S4 T3 and T2 #36195cars added
  • T3 Mustang T2/T3 #35877other
  • T3 T2-T4 Driveshaft Mistake...? #36050weight
  • T3 E&O: #35174 (Derek Chan) 350Z Parity Request #36116induction
  • T3 B8/8.5 Audi S4 T3 and T2 #36195cars added
  • T3 Z4 Roadster Eligibility #36196other
  • FP NIssan 300ZX Z31 to EP #35830cars added
  • FP RX7 1993 and Up Request In EP Spec Lines, classify #36031cars added
  • FP Clean-up Multiple EP RX-8 Spec Lines In EP #36156wording
  • T3 Global MX5 Tre change #36046tyres & wheels
  • FP Request to Replace CRX Plastic Panels #35876wording
  • FP FP data and parity #35896induction
  • T2 Allow T4 and T3 RX8 to Disable/Remove Factory Oil Inj. #35761engine
  • T2 Competition Adjustment Request/Wheel Size of E46 #35895tyres & wheels
  • T2 Driveshafts #35916weight
  • T3 Allow T4 and T3 RX8 to Disable/Remove Factory Oil Inj. #35761engine
  • T3 Driveshafts #35916weight
  • T3 Audi S4 HST requirement #35918other
  • T2 Brake Request for 2009 Porsche Cayman #35723suspension & brakes
  • FP GCR Correction - Redundant HP Spec Lines #35623engine
  • FP Update FP Protege (01-03) Model Info #35715other
  • T2 Reorganize Spec Lines #35375induction
  • T2 370Z Brake Rotor Size Correction #35487suspension & brakes
  • T2 Letter #35154 2018+ Mustang GT Expansion #35488suspension & brakes
  • T3 Spec Z Interchange in T3 #34416induction
  • T3 please classify 2000-2002 Audi s4 #35306cars added
  • T3 Reorganize Spec Lines #35375induction
  • T3 370Z Brake Rotor Size Correction #35487suspension & brakes
  • T3 T3 V6 Mustang help #35526induction
  • T3 Nissan 370Z - Brake System Allowance - Brake Booster #35556suspension & brakes
  • T3 Mustang Help #35559induction
  • T3 Appeal for Retention of T3 Mazda RX-8 Spec Line (Letter #35378) #35577other
  • T3 Request to Keep the Mazda Rx-8 in Touring 3 #35584other
  • T3 Subaru WRX (02-05) Appeal #35656other
  • FP Update 1988-1991 Civic to Match 1988-1991 CRX #35399weight
  • T2 2015+ Mustang Sway Bar and A-Arm Request #35154suspension & brakes
  • T2 Brake Kits #35245suspension & brakes
  • T2 Runoffs wording on Caddy in T2 #35377wording
  • T2 More Car Lightening Stuff #35319weight
  • T2 Inclusion of B-C spec cars in T4 #35374other
  • T2 T2-T4 Set expiration dates on spec lines #35378induction
  • T2 Reply to letter #35161 and #31661 #35384weight +75 lbs
  • T3 15-18 Golf R Alignment with Existing GTI and R Speclines #35235tyres & wheels
  • T3 More Car Lightening Stuff #35319weight
  • T3 Open Strut Tower Brace Options for Ford Mustang V6 (11-14) #35322suspension & brakes
  • T3 Mustang ecoboost #35351induction
  • T3 Inclusion of B-C spec cars in T4 #35374other
  • T3 T2-T4 Set expiration dates on spec lines #35378induction
  • FP FP data #35060weight +25 lbs
  • FP Request to Review Z3 2.5 Spec Line #35073weight +50 lbs
  • FP Corrections to Honda Spec Lines in FP #35250induction
  • FP Miata Alternate Head #35253weight -50 lbs
  • FP Triumph GT6 Adjustments #35255weight
  • FP Honda S2000 throttle body #35272induction
  • FP Correction within Triumph TR8 Spec Line #35315engine
  • FP Correction to EP 924S/944 Spec Line #35317weight
  • T2 Rebalance Blackwing Cadillac T2 #35079tyres & wheels
  • T2 M2 CS RACING #35130weight -50 lbs
  • T2 Spec Corvette in T2 #35139weight -175 lbs
  • T2 T2 Viper BoP #35155tyres & wheels
  • T2 BOP Adjustment for 5.0L Mustangs #35156weight +75 lbs
  • T2 Take at Look at T-2 BOP #35161weight -50 lbs
  • T2 C5 Corvette Spec Line Oversight #35169weight
  • T2 Requested Update of Model Years of 370Z #35231other
  • T3 T3 Solstice Brakes #35106suspension & brakes
  • T3 350Z Parity Request #35174weight
  • T3 Requested Update of Model Years of 370Z #35231other
  • 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
  • FP Porsche 944/924S Rule Change Request #35002weight
  • FP FP and HP Toyota Corolla #35030weight -43 lbs
  • FP Triumph GT6 Adjustments #35054weight -30 lbs
  • T2 M2 CS RACING #35122other
  • 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
Virginia International Raceway Runoffs 20232023-09-231:59.504Kurt Rezzetano · fastest of 13 · top 5 within 2.1s-0.772s (-0.64%)2:01.201Kurt Rezzetano · fastest of 13 · top 5 within 1.6s-3.555s (-2.85%)150.7Scotty B White-1.9 mph (-1.2%)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%)+4.653squal +5.016s103.8%qual 104.2%2:08.248Cliff Ira · fastest of 21 · top 5 within 1.0s+2.031s (+1.61%)2:07.787Cliff Ira · fastest of 20 · top 5 within 0.8s-9.854s (-7.16%)133.7Cliff Ira+1.1 mph (+0.9%)+6.586squal +8.744s105.4%qual 107.3%
51 rule changes (T2: 17, T3: 28, FP: 6)13 weight · 6 cars added · 6 suspension & brakes · 6 tyres & wheels · 4 induction · 1 engine · 1 removed · 2 wording · 12 othershowhide
  • T2 Corvette LS2 Restrictor Plate Adjustment #34456induction
  • T2 Blacking Cadillac Fuel Capacity #34624engine
  • T2 Rules Clarification for Mazda RX8 Spec Line #34395weight
  • T2 rule book corrections #34437wording
  • T2 Ride Height Correction for the T3 Solstice. #34615suspension & brakes
  • T3 2012-2013 Golf R - added to T3 #34413cars added
  • T3 Rules Clarification for Mazda RX8 Spec Line #34395weight
  • T3 rule book corrections #34437wording
  • T3 Allowing 255 Tire Width for Nissan 350z #34471tyres & wheels
  • T3 Ride Height Correction for the T3 Solstice. #34615suspension & brakes
  • FP Correct Intake Valve Size on 1500cc Midget/Spitfire #34419induction
  • FP ITC to FP? #34286other
  • T2 370Z Obsolete Parts & NISMO Alternatives to SPL Parts #34297weight
  • T3 2016+ Camaro 1LE - Max Wheel Diameter #34003tyres & wheels
  • T3 2022 Toyota GR Cup for T3 #34448removed
  • FP Request to Classify Sonic and Fiesta in HP #34264cars added
  • T2 2009 Porsche Cayman Classing Request #34147other
  • T3 S550 Reconcile With S197 #34093weight -75 lbs
  • T3 SE46 Parity Help #34178weight -50 lbs
  • T3 2022 Toyota GR Cup for T3 discussion #34234cars added
  • FP Classification Request for 1978 Toyota Celica #34097cars added
  • T2 C5 Z06 Straight Line Speed #33575weight
  • T3 Request Spec E46 in T3 Weight Adjustment #33897weight -25 lbs
  • T3 E36 2.5L 323is Weight Reduction #33975weight
  • T3 Update SpecE46 Spec Line to Current SpecE46 Ruleset #34016other
  • T2 Allowance of any nonmetallic bushing material in T2 #33833suspension & brakes
  • T2 Allow Adjustable stabilizer bar links #33861suspension & brakes
  • T3 Request to all ECS Tuning inner-cooler to 06-10 VW GTI spec #33769other
  • T2 Honda Civic Type R Tire Size Increase #33672tyres & wheels
  • T3 T3 Boxster S GCR request #33687tyres & wheels
  • T3 OEM VW Steering Spindle Replacements 06-10 VW GTI and Jetta #33732other
  • T3 BMW 320I intercooler #33762other
  • FP Request to Add Mazda Protege P5 to FP #33664other
  • T2 C5 Corvette Swaybars #33269other
  • T2 Mustang OEM Grill Request #33333other
  • T3 Request to classify 2014 Base Cayman #33159cars added
  • T3 Mustang OEM Grill Request #33333other
  • T3 Hyundai Classification #33498cars added
  • T3 Adjustable Rear Camber Arms for VW (All Generations) #33572suspension & brakes
  • FP Review Limited Prep Port Matching Rules #33600induction
  • T2 BMW M235iR/M240iR Aftermarket 2WNR Shocks Allowed - Touring 2 #33464suspension & brakes -50 lbs
  • T2 Touring (T2-T5) Category #33617tyres & wheels
  • T2 ENO 9.1.9.2.D.1.e.1.a. #33651other
  • T3 350z SPC Upper Control Arm Safety Concerns #33020weight
  • T3 Request Help for 350z #33379weight -100 lbs
  • T3 Ecoboost Acknowledgement #33506induction
  • T3 Touring (T2-T5) Category #33617tyres & wheels
  • T3 ENO 9.1.9.2.D.1.e.1.a. #33651other
  • T2 Heavy Cars #33345weight +125 lbs
  • T3 Solstice GXP in T3 #33501weight
  • T3 Another 2022 BRZ/86 T3 request #32945weight +225 lbs
Virginia International Raceway Runoffs 20222022-09-242:00.276Kurt Rezzetano · fastest of 14 · top 5 within 1.7s+2.739s (+2.33%)2:04.756Kurt Rezzetano · fastest of 14 · top 5 within 2.0s+6.205s (+5.23%)152.5Aaron Kaplan+3.2 mph (+2.1%)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%)+22.870squal +3.947s118.3%qual 103.3%2:06.217Eric Prill · fastest of 18 · top 5 within 1.5s-1.219s (-0.96%)2:17.641Mason Workman · fastest of 15 · top 5 within 3.2s+9.565s (+7.47%)132.5Cliff Ira+1.2 mph (+0.9%)+12.885squal +5.941s110.3%qual 104.9%
76 rule changes (T2: 20, T3: 31, FP: 25)16 weight · 14 cars added · 12 induction · 9 suspension & brakes · 6 engine · 4 tyres & wheels · 1 aero · 5 wording · 9 othershowhide
  • FP Request to classify VW New Beetle 2.5L in EP #32725cars added
  • FP Request Rotary Injection on Dual Y manifold #32775engine
  • FP Request for Corrado Stroke & Displacement Correction #32985engine
  • T3 S2000 Hard Top Clarification #32779wording
  • T3 T3 Pontiac Solstice- #33081induction
  • T3 Classify Car #32691cars added
  • T3 2022 BRZ Sway bar and lip spoiler. #32703aero
  • FP Subaru BRZ Model Years #32500other
  • T2 BMW M235iR/M240iR Min Weight Clarification #32430weight
  • T2 Follow up to Letter 30888 #32477other
  • FP Weight Adjustment of Lotus 7 #32213weight +50 lbs
  • FP EP MX-5 Global Cup Car #32218weight
  • FP Please Class BMW 128i in EP #32370cars added
  • FP Inconsistency in Body Work Descriptions #32396other
  • FP Request to classify the 1999-2000 Mazda Protege in FP #32398cars added
  • T2 Request Alternate Front & Rear Strut/Shock Top Hats #32452suspension & brakes
  • T2 Request BoP E92 torque #32456other
  • T2 Classify Cadillac Blackwing #32535cars added
  • T3 correct wording #31750weight
  • T3 2005-2008 Porsche Boxster 2.7 #31999cars added
  • T3 Request Alternate Front & Rear Strut/Shock Top Hats #32452suspension & brakes
  • T3 2022 Subaru BRZ and Toyota 86 twins #32483weight
  • FP Mazda RX8 with 13b Rotary #32170induction
  • FP Request Idle control valve clarification #32178engine
  • FP Correct FP BMW 325e/es Displacement #32394engine
  • T2 Request to Allow the Use of Aftermarket ECU's in Touring #31067engine
  • T2 BMW M2 CS Cup 2020- Exhaust #32243tyres & wheels
  • T2 RequestT2 classification- 2022 Cadillac CT4-V Blackwing #32263cars added
  • T3 Request to Allow the Use of Aftermarket ECU's in Touring #31067engine
  • T3 T3 Mustang V8/V6 #31959weight -50 lbs
  • T3 Subaru STI (15-20) Missing part #32294other
  • FP EP Adjustments #31858induction
  • FP 1999 3.8L Ford Mustang to EP? #31635weight
  • FP Improved Touring Tires #32064tyres & wheels
  • FP VW Golf Jetta 2.0L intake and exhaust size correction. #32173induction
  • T2 Reply to letter #31486/29879 T2-T4 Grill openings #31935suspension & brakes
  • T2 C6 Restrictor Help #31995induction
  • T3 Touring 3 BOP adjustments for 2022 #31481weight +75 lbs
  • T3 BMW 330i Minimum Comp Weight #31606weight -60 lbs
  • T3 Adjust T3 370Z #31748weight +50 lbs
  • T3 TIR changes for FWD T3 models #31825induction
  • T3 Reply to letter #31486/29879 T2-T4 Grill openings #31935suspension & brakes
  • T3 BRZ vs BRZ TS #32022tyres & wheels
  • T3 Remove StopTech 4 piston BBK, allow any 4 Piston Kit - VW GTI #33082weight
  • FP Throttle Body and Idle Air #31800induction
  • T2 BMW Z4M Adjustment #31885weight -50 lbs
  • FP Porsche 968 Engine Questions #31478induction
  • FP PCS E. 2. n. 4. Add Axle Shaft to Allow FWD the Same Freedom #31592tyres & wheels
  • FP BMW Z3 2.5L Spec Line #31724induction
  • FP FP Del Sol VTEC #31859induction
  • FP Standardize Level 2 Classifications in FP #31868induction
  • T2 Touring 2 BOP adjustments for 2022 #31480weight -50 lbs
  • T2 Reply to letter 29879 T2-T4 Grill Openings #31486suspension & brakes
  • T2 Request to clarify radiator hoses #31682wording
  • T2 Clarify Permitted/Allowed #31743suspension & brakes
  • T2 SMG #31837other
  • T3 Request FRS/BRZ/86 T3 Weight Reduction #30818weight -75 lbs
  • T3 Request to Classify 2022 Toyota 86 / Subaru in T3 & T4 #30931cars added
  • T3 Reply to letter 29879 T2-T4 Grill Openings #31486suspension & brakes
  • T3 Please Adjust Years Allowed for BMW 335i to 07-10, not 08-13 #31530other
  • T3 Please Adjust Years Allowed for BMW 135i to 08-10, not 08-13 #31531other
  • T3 Request to clarify radiator hoses #31682wording
  • T3 T3 Nissan Z Suspension Update #31728other
  • T3 Clarify Permitted/Allowed #31743suspension & brakes
  • FP 944S2 Restrictor #31396induction
  • FP Classing Clarification for 1986 Toyota Corolla FX16 #31527cars added
  • T2 Typo for BMW M2 CS Cup 2020 #31173suspension & brakes
  • T3 Request to correct model years BMW Z4 M Coupe #31371wording
  • T3 Correct letter the 31327 #31563weight +150 lbs
  • T2 Request to Classify 2014 VW Jetta 1.8t TSI #30436cars added
  • T2 Request new car 2017 BMW M2 #30486cars added
  • T2 Request to Classify Porsche 997.2 GTS in T2 (body not = to C2S) #30686cars added
  • T3 Request to Classify 2014 VW Jetta 1.8t TSI #30436cars added
  • T3 Request Weight Reduction 323is #30765weight -100 lbs
  • T3 Class Newer STI in T3 #31327cars added
  • FP E&O; MR2 Track #31120wording
Indianapolis Motor Speedway Runoffs 20212021-09-251:47.509Kurt Rezzetano · fastest of 26 · top 5 within 1.6s-1.109s (-1.02%)1:48.474Kurt Rezzetano · fastest of 26 · top 5 within 2.5s-0.295s (-0.27%)151.5Scotty B. White1:51.591Marshall 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+4.227squal +4.082s103.9%qual 103.8%1:51.082Craig Chima · fastest of 39 · top 5 within 1.2s-1.009s (-0.90%)1:59.933Cliff Ira · fastest of 33 · top 5 within 5.4s+6.926s (+6.13%)131.8Cliff Ira+11.459squal +3.573s110.6%qual 103.3%
70 rule changes (T2: 30, T3: 19, FP: 21)18 weight · 13 cars added · 6 suspension & brakes · 4 tyres & wheels · 3 engine · 3 induction · 1 wording · 22 othershowhide
  • T2 BMW M2 CS Power Stick Part Number #31087wording
  • FP Request to Allow F22c Engine for 2000-2003 Honda S2000 #30548engine
  • FP Request a review of the S14 240SX in EP. #30873weight -200 lbs
  • T2 997.1 EO #30933other
  • FP Lotus/Caterham 7 America Request #30392engine
  • FP Request to classify ITC Plymouth Arrow #30588cars added
  • FP Reclassification of the 1984/85 BMW 318i from FP to HP #30661cars added
  • FP Fiat x1/9 Competition Adjustments #30711weight -50 lbs
  • FP Reclassify Daimler SP 250 #30721cars added
  • T2 Request #30406weight
  • T3 Follow-up to letter 29797-Porsche Spec Boxster in T3 Adjustment #30144weight -50 lbs
  • T3 Wheel Size #30677tyres & wheels
  • T3 Request weight adder to be applied to the Global Cup Miata ND2 #30730weight
  • FP Move Porsche 924 in Level 1 Prep From EP to FP #30135cars added
  • FP Clarify Application of Percentage Based Weight Penalties #30669weight
  • T2 Civic Type R Brake Rotors #29817suspension & brakes
  • T2 Mustang S550 Parity in T2 #29925other
  • T2 Request BOP on BMW Z4 T2 car #30597weight +50 lbs
  • T2 E92 #30639weight -50 lbs
  • T3 Civic Type R Brake Rotors #29817suspension & brakes
  • FP Change Classification of 84-87 Mazda 626 from FP to HP #30350cars added
  • FP Fiat X1/9 brake rotors #30423suspension & brakes
  • T2 C5/6 Corvette in T1, T1-LP and T2 Dry Sump Standardization #29046other
  • T2 Request for Chevrolet Camaro 1LE (2016-) Auto Trans #29067other
  • T2 Request E46 M3 Minimum Competition Weight #29429weight -100 lbs
  • T2 Request to add 2015 to Chevrolet Camaro SS/1LE 2010-2014 #29736other
  • T3 Requesting Variance on Hardtop #30093other
  • T3 07-09 and 10-13 Mazdaspeed 3 Fuel Pump #30154other
  • FP Please Classify Mazda3 in FP #30165cars added
  • FP Golf MkIII Valve Size Request #30268engine
  • T2 Request consistency review in GCR #30263other
  • T2 Class Spec Corvette in T2? #30297cars added
  • T2 E92 BMW Spring Rate Request #30391suspension & brakes
  • T2 Please correct recent T2 Spec Line #30401suspension & brakes
  • T3 Request consistency review in GCR #30263other
  • T3 Request to classify 2006-2008 Cayman #30315cars added
  • T2 Request BMW M2CS door glass removal #30254other
  • T3 2020 T3 Suggested Changes #30002weight -50 lbs
  • T2 Request Addition of BMW M240iR #29503weight
  • T2 2021 Toyota Supra #29567cars added
  • T2 Request Cold Air Intake for Honda Civic Type R #29942induction
  • T2 Adjust T2 spec line that was missed in T2 BOP #30055weight -50 lbs
  • T2 Fix T2 Mustang spec line #30106other
  • T2 Z4 Wheel Size #30113tyres & wheels
  • T2 Clarify T2 Spec lines #30194tyres & wheels
  • T3 2021 Toyota Supra #29567cars added
  • T3 Chevrolet Camaro LT-I4 Turbo 1LE (2019-) Model Year to 2016- #30090induction
  • T3 Fix T2 Mustang spec line #30106other
  • T3 Spec Boxster Tire Size #30159tyres & wheels
  • FP Alternate Front Brake Rotors and Calipers for EP AH 3000 #29893suspension & brakes
  • FP Request VW weight break #29963weight -50 lbs
  • T2 Request to Classify BMW M2 CS #29523cars added
  • T2 350Z Rear Caliper Replacement #29710other
  • T2 Request Mustang 8.8” rear axle replacement #29860other
  • T2 Cap year range on all 86s #29908other
  • T3 Request to Classify BMW M2 CS #29523cars added
  • T3 Allow the SpecMX-5 Update Kit Into Touring 4 for the MX-5 #29681other
  • T3 350Z Rear Caliper Replacement #29710other
  • T3 Request Mustang 8.8” rear axle replacement #29860other
  • T3 Cap year range on all 86s #29908other
  • FP Mk2 VW Consistency and Cleanup of FP and HP Spec Lines #29195weight -50 lbs
  • FP Correct Wording for Level 1 and Level 2 Induction Systems #29406induction
  • FP Weight Reduction for Datsun Roadster #29409weight -75 lbs
  • FP EP TR8 Adjustment #29512weight -100 lbs
  • FP Request to Classify 1996-2000 Honda Civic EX #29515cars added
  • FP FAJS Carburetor #29576other
  • T2 Request to Reevaluate T2 Spec Line for E92 M3 #28266weight -50 lbs
  • T2 Request for Parity Among Vehicles Including S550 Mustang #29486weight -75 lbs
  • T2 Alfa Romeo 4C Launch Edition #29531other
  • T3 Alfa Romeo 4C Launch Edition #29531other
Road America Runoffs 20202020-10-022:24.195Alan Kossof · fastest of 15 · top 5 within 2.5s2:26.803Kurt Rezzetano · fastest of 14 · top 5 within 2.2s147.3Mark Boden2:29.757Marshall Mast · fastest of 29 · top 5 within 2.1s2:31.688Marshall Mast · fastest of 20 · top 5 within 1.8s138.1Jason Ott+4.885squal +5.562s103.3%qual 103.9%2:31.414Ethan Shippert · fastest of 23 · top 5 within 2.2s2:34.033Kevin Ruck · fastest of 21 · top 5 within 2.3s133.2Sam Henry+7.230squal +7.219s104.9%qual 105.0%
75 rule changes (T2: 30, T3: 26, FP: 19)17 weight · 12 cars added · 8 induction · 8 suspension & brakes · 6 engine · 5 tyres & wheels · 1 aero · 10 wording · 8 othershowhide
  • FP 84-87 Toyota Corolla HP Wheel Diameter Allowance Proposal E&O #29458tyres & wheels
  • T2 Request 2018+ mustang swaybar update #28659suspension & brakes
  • T3 Request to Classify Honda Civic Type R in T3 #27840cars added
  • T2 Request to Clarify New 2-piece Brake Rotor Rule #29106suspension & brakes
  • T2 please consider BoP for the following cars in T2 #29266weight -50 lbs
  • T2 Request clarification on most recent approval by the Board #29284suspension & brakes
  • FP EP BMW Z3 Rule Clarification #28998engine
  • T2 Request to correct GCR for 2018+ FORD Mustang GT & Ecoboost #28803wording
  • T3 Request to classify 2009 Honda Accord v6 manual #28913cars added
  • FP Request to Classify Porsche 911 2.0L #28456cars added
  • FP Request to change to Carburetor Spec Line 84-87 Mazda 626 #28926induction
  • T2 Request to Add a Vehicle to the Roster (contd.) #27698other
  • T2 Request brake upgrade and electric power steering pump #28946suspension & brakes
  • T3 SADEV Sequential Gearbox #28763other
  • T3 Request for competition adjustment for the MK5 GTI FSI engine #28802engine
  • T3 Request to Add a Vehicle to the Roster (contd.) #27698other
  • FP BMW Cylinder Head Casting and Part Numbers #28708engine
  • FP Correct Scirocco Spec line E&O #28892weight
  • T2 Request to Classify 2004 Mercedes Benz 320 CLK #27663cars added
  • T2 Consider coil spring conversion Corvette in T2 #28824suspension & brakes
  • T3 Request to Classify 2004 Mercedes Benz 320 CLK #27663cars added
  • T3 Request Nissan 350Z Part Number change #28145induction
  • FP Request to Classify 1990-1994 Mazda Protege #28381cars added
  • FP Error in Mini Cooper Spec Line #28713wording
  • T2 Please Add the Following BBK to Allowed List for E92 M3 #28421wording
  • T2 C5 Weight Adjustment #28433weight -50 lbs
  • T2 Z3M Roadster Weight #28437weight
  • T3 2015 + Ford EcoBoost Mustang Sway Bars #28398suspension & brakes
  • T3 Z3M Roadster Weight #28437weight
  • FP Caterham 7 Spec Line #28498engine
  • FP Request to classify SOHC 1989-90 240SX in F prod L2 #28553cars added
  • T2 Limit Changes to the 997.2 Porsche #28242aero
  • T2 Correct T2 Mustang Transmission #28732wording
  • FP VW Weight and Valve Size Request #27886weight
  • FP Request to allow 40 DCOE carb for the Datsun 510 #28195induction
  • FP Request to classify Porsche 914 2L in LPrep FProd #28231cars added
  • FP Request Ford Fiesta Weight Adjustment #28336weight
  • T2 Request to Readjust the T2 Porsches #27746induction
  • T3 Clarify 05-10 V8 Mustang Spring Rates Wording/Adjust Restrictor #28238induction
  • T3 Correct Touring 3 05-10 Mustang final drive #28288wording
  • FP Request for Help for Datsun 1200 #27934induction
  • T2 Please Switch the Solstice GXP as Specified in T2, to T3 #27413weight -50 lbs
  • T2 Request for Two Piece Stop Tech Brake Rotors #27582suspension & brakes
  • T2 Request to Classify all Mazda RX8 Models in T3/T4 #27606cars added
  • T2 Request for Alternative Brake Kit on Nissan 370Z #27912suspension & brakes
  • T2 2015- Current Ecoboost Mustang #27971weight -100 lbs
  • T2 T2 Mustang #28022tyres & wheels
  • T3 2006 BMW E90 330i Sedan Classification #26663weight
  • T3 Please Switch the Solstice GXP as Specified in T2, to T3 #27413weight -50 lbs
  • T3 Request to Classify all Mazda RX8 Models in T3/T4 #27606cars added
  • T3 Request for 2005 Subaru STI Changes #27658tyres & wheels +50 lbs
  • T3 Request to Classify 2017 Ford Fiesta ST #27700cars added
  • FP Request to List Mazda Miata Throttle Body Size #27907induction
  • FP Request to Classify 2001-2003 Mazda Protege ES in FP #27922cars added
  • T2 Clarification of On-Board Fire System for T2 #27183wording
  • T2 Mustang Ecoboost and GT Transmission #27439other
  • T2 Request for Dailey Engineering Dry Sump on 2010 Camaro SS #27514engine
  • T2 Request for Half Shafts - 2014 Camaro SS 1LE #27584induction
  • T2 Request for Parity Among Vehicles #27665weight -50 lbs
  • T2 Request for 2016-2020 Camaro SS Help #27776weight -50 lbs
  • T2 Request for Competitive Adjustments to Honda Civic Type R #27839weight -50 lbs
  • T2 T4 RX8 Classification Error #27902wording
  • T2 Request to add Toyota 86 GT to Spec Line #27910other
  • T3 Clarification of On-Board Fire System for T2 #27183wording
  • T3 Mustang Ecoboost and GT Transmission #27439other
  • T3 Nissan 350Z HR Engine Restrictor Plate/Minimum Weight #27442weight +50 lbs
  • T3 Request help for the GMX5 #27572tyres & wheels
  • T3 Request for 05-10 Mustang GT Suspension Upgrades #27777weight
  • T3 Please Update the BMW SpecE46 Rules #27781tyres & wheels
  • T3 Request for 02-03 WRX Spec Line Parts #27864weight -100 lbs
  • T3 T4 RX8 Classification Error #27902wording
  • T3 Request to add Toyota 86 GT to Spec Line #27910other
  • FP Request to Correct Track of 1988-91 Honda Civic #27487wording
  • FP Re-organize Prep2 Cylinder Head Rules for Clarity & Consistency #27661engine
  • T3 Request to add 2018 Subaru BRZ in T3 #27253other
Virginia International Raceway Runoffs 20192019-10-051:57.537Cooper I MacNeil · fastest of 19 · top 5 within 3.4s1:58.551Cooper I MacNeil · fastest of 18 · top 5 within 2.4s149.4James Leithauser2:04.918Marshall Mast · fastest of 20 · top 5 within 1.1s2:05.354Broderick Bauguess · fastest of 20 · top 5 within 1.6s138.2Scotty B White+6.803squal +7.381s105.7%qual 106.3%2:07.436Eric Prill · fastest of 19 · top 5 within 0.6s2:08.076Eric Prill · fastest of 18 · top 5 within 0.8s131.4Ken Kannard+9.525squal +9.899s108.0%qual 108.4%
61 rule changes (T2: 23, T3: 29, FP: 9)15 weight · 13 cars added · 13 suspension & brakes · 6 tyres & wheels · 3 induction · 1 removed · 3 wording · 7 othershowhide
  • T3 Request Mazda NC MX-5 alternate transmission gear ratios #27155other
  • FP Request bodywork for Austin Healey Bugeye Sprite MK1 #27106other
  • FP Request to classify the GMX5 2019 #27263cars added
  • FP level one susp. component rule #27270suspension & brakes
  • FP Clarification of Carb Rules - Prep 1 #27300induction
  • FP Clarification of Carb Rules - Prep 2 #27301induction
  • T2 Request spare tire/wheel clarification #27012tyres & wheels
  • T3 Request spare tire/wheel clarification #27012tyres & wheels
  • FP Request Miata Eligibility - 2003 #27121other
  • T3 Request guidance for 2014-2017 MK7 Volkswagen GTI #26866weight
  • T2 Request to change Cadillac CTS-V years from 06-07 to 04-07 #26842cars added
  • T2 Request to allow Hotchkiss front / rear sway bars on T2 CTS-V #26845suspension & brakes
  • T2 Consider T2 06-07 Cadillac CTS-V BoP #27022induction
  • T2 Correct T2 Mustang tire size #27024tyres & wheels
  • T3 Request BMW e36 M3 sway bar and links #26885suspension & brakes
  • T2 2018+ Audi TT RS Suspension Allowances #26631suspension & brakes
  • T2 Request BOP adjustment for 2018 Honda Civic Type R-TIR removal #26882weight +150 lbs
  • T3 Request to properly class base Porsche Cayman #26276weight
  • T3 Request to classify a 2019 Chevrolet Camaro LT-I4 Turbo 1LE #25731cars added
  • T3 T3 Civic Si weight change #26294weight
  • T3 Class Civic Si 2017+ w/ alternate cage #26449cars added
  • T3 Classify 2014-2017 MK7 Volkswagen GTI for T3 #26695cars added
  • FP Rollcenter Correction Clarification #25873tyres & wheels
  • FP Hardtops #26476wording
  • T2 Request for Removal of Rear Anti-roll Bar in T2 Mustang GT #26533suspension & brakes
  • T3 Request to allow E36 M3 in T3 prepared to BMWCCA I sport #25195cars added
  • FP Request Classification of Dodge Daytona in F Production #26259weight -150 lbs
  • T2 Request Mustang GT Limited Prep 2018 Classification #24431cars added
  • T2 Request to Classify 2018 Audi TT RS #25961cars added
  • T2 Request for Adjustments on 2017+ Civic Type R #25969suspension & brakes
  • T2 Correct Mazda MX-5 Hard Top Notes #26137weight
  • T2 Consider opening class rules to allow any thermostat #26187wording
  • T2 Ford Mustang Boss 302 (12-13) - correct weight #26287weight -50 lbs
  • T2 Request camber correction 005-2013 corvette C6 #26288suspension & brakes
  • T2 Request 98-02 Firebird 98-02 Camaro reloacte rear spring #26291suspension & brakes
  • T2 Cap 2016 Mazda Miata year at 2018 #26388other
  • T2 Class Ford Mustang GT 2018+ (reference letter 24431) #26400cars added
  • T3 Request Mustang GT Limited Prep 2018 Classification #24431cars added
  • T3 Classify 2015+ WRX #25832cars added
  • T3 Correct Mazda MX-5 Hard Top Notes #26137weight
  • T3 Request to allow T3 06-15 Miata 17x8 wheels #26161tyres & wheels
  • T3 Request T3 06-15 Miata header #26162other
  • T3 Request Pontiac GXP same allowances to Saturn Sky #26175weight
  • T3 Consider opening class rules to allow any thermostat #26187wording
  • T3 2005-2009 Legacy GT/Spec B #26384cars added
  • T3 Cap 2016 Mazda Miata year at 2018 #26388other
  • T3 Request correction on brake sizes #26170suspension & brakes
  • T2 Errors, Omissions, and Updates (Various) #22414weight
  • T2 Request to classify 2015 Cayman GTS 3.4L in T2 #25335cars added
  • T2 Request for 2017-2018 Honda Civic Type R - 4 BOP Grill #25513other
  • T2 Add Clarification to Spec Car Classifications Vehicle Spec #25774weight
  • T2 Clarify Subframe Bushings Permitted for T2-T4 #25800suspension & brakes
  • T3 Errors, Omissions, and Updates (Various) #22414weight
  • T3 Request to update SpecE46 Appendix N. with 2019 Rules #25722removed
  • T3 Request Alternative Nissan Brake Parts - 350Z #25747suspension & brakes
  • T3 Add Clarification to Spec Car Classifications Vehicle Spec #25774weight
  • T3 Clarify Subframe Bushings Permitted for T2-T4 #25800suspension & brakes
  • T3 Additional weight adjustments for T3 cars T3 weight loss #25803weight
  • T3 Request for Alternate EcoBoost Mustang Brakes #25813suspension & brakes
  • T3 Request to Add the FR-S/86 and BRZ Spec Lines to T3 #25888weight
  • T3 Request to Clarify BMW SpecE46 Tire Verbiage #26027tyres & wheels
Sonoma Raceway Runoffs 20182018-10-101:45.032John Kachadurian · fastest of 30 · top 5 within 2.4s1:45.999John Kachadurian · fastest of 28 · top 5 within 3.0s106.5John Kachadurian1:10.656Mark Drennan · fastest of 17 · top 5 within 19.6s1:49.610Mark Drennan · fastest of 17 · top 5 within 0.4s108.4Marshall Mast+3.611squal -34.376s103.4%qual 67.3%1:47.588Joe Huffaker · fastest of 15 · top 5 within 3.0s1:48.481Joe Huffaker · fastest of 14 · top 5 within 2.2s109.1Joe Huffaker+2.482squal +2.556s102.3%qual 102.4%
No rule changes on record between these events
Indianapolis Motor Speedway Runoffs 20172017-09-251:48.618John M Buttermore · fastest of 26 · top 5 within 0.8s1:48.769John M Buttermore · fastest of 25 · top 5 within 1.2s1:52.214Rob Hines · fastest of 24 · top 5 within 0.8s1:53.286Charles Hurley · fastest of 22 · top 5 within 0.6s+4.517squal +3.596s104.2%qual 103.3%1:52.091Eric Prill · fastest of 42 · top 5 within 1.2s1:53.007Eric Prill · fastest of 40 · top 5 within 0.7s+4.238squal +3.473s103.9%qual 103.2%
No rule changes on record between these events
Mid-Ohio Sports Car Course Runoffs 20162016-09-191:31.563Preston Calvert · fastest of 22 · top 5 within 0.5s1:32.691John M Buttermore · fastest of 20 · top 5 within 1.5s1:36.741Charles Hurley · fastest of 10 · top 5 within 1.0s1:37.371Robert Schader · fastest of 10 · top 5 within 0.4s+4.680squal +5.178s105.0%qual 105.7%1:35.938John Walker · fastest of 33 · top 5 within 0.4s1:36.399John Walker · fastest of 27 · top 5 within 0.3s+3.708squal +4.375s104.0%qual 104.8%
No rule changes on record between these events
Daytona International Speedway Runoffs 20152015-09-212:00.172Kurt Rezzetano · fastest of 20 · top 5 within 3.2s2:01.077Kurt Rezzetano · fastest of 19 · top 5 within 2.8s2:08.573Scotty B White · fastest of 5 · top 5 within 7.9s2:08.363Tom Wickersham · fastest of 5 · top 5 within 8.3s+7.286squal +8.401s106.0%qual 107.0%2:11.009Kevin Ruck · fastest of 20 · top 5 within 1.6s2:12.419Kevin Ruck · fastest of 18 · top 5 within 1.1s+11.342squal +10.837s109.4%qual 109.0%

By track

TrackEvents Typical % of T2 Best Latest 
Road America4100.0%100.0%Runoffs 2020100.0%Runoffs 2026
Virginia International Raceway3100.0%100.0%Runoffs 2019100.0%Runoffs 2023
Indianapolis Motor Speedway2100.0%100.0%Runoffs 2017100.0%Runoffs 2021
Daytona International Speedway1100.0%100.0%Runoffs 2015100.0%Runoffs 2015
Mid-Ohio Sports Car Course1100.0%100.0%Runoffs 2016100.0%Runoffs 2016
Sonoma Raceway1100.0%100.0%Runoffs 2018100.0%Runoffs 2018
About this data
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 T2'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.