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BoP Lab / Classes / P2

P2 vs T3 vs F5 vs FP pace at every track

Lap times across years say as much about the weather as the class. % of P2 is each class's best lap as a share of P2'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: remove one to add another)
ASB-SpecEPvsF5×FAFCFE2FFvsFP×FVFXGT1GT2GTXHPPP2×SMSMXSRF3STLSTUT1T2vsT3×T4Show 50 inactive classes
Series
Reference · what % is measured against
Tracks · untick to narrow

Closest to the field: P2 100.0% of P2 Jeff Shafer, Daytona International Speedway Runoffs 2015 race · T3 79.6% of P2 Mark Drennan, Sonoma Raceway Runoffs 2018 qualifying · F5 104.4% of P2 Sven de Vries, Virginia International Raceway Runoffs 2022 race · FP 101.3% of P2 Mason Workman, Virginia International Raceway Runoffs 2022 race

1:402:002:202:4048 rule changes between Runoffs 2018 and Runoffs 201948 ▾57 rule changes between Runoffs 2019 and Runoffs 202057 ▾51 rule changes between Runoffs 2020 and Runoffs 202151 ▾72 rule changes between Runoffs 2021 and Runoffs 202272 ▾42 rule changes between Runoffs 2022 and Runoffs 202342 ▾67 rule changes between Runoffs 2023 and Runoffs 202467 ▾42 rule changes between Runoffs 2024 and Runoffs 202542 ▾66 rule changes between Runoffs 2025 and Runoffs 202666 ▾P2 race best at Runoffs 2015: 1:52.355 (Jeff Shafer)P2 race best at Runoffs 2016: 1:20.904 (Jeff Shafer)P2 race best at Runoffs 2017: 1:32.481 (Jeff Shafer)P2 race best at Runoffs 2018: 1:32.071 (Chuck Bona)P2 race best at Runoffs 2019: 1:50.258 (Greg Gyann)P2 race best at Runoffs 2020: 2:09.793 (Robert Iversen)P2 race best at Runoffs 2021: 1:35.322 (Tim Day Jr)P2 race best at Runoffs 2022: 2:15.834 (Greg Gyann)P2 race best at Runoffs 2023: 1:48.829 (Lucian Pancea)P2 race best at Runoffs 2024: 2:08.322 (Bart Wolf)P2 race best at Runoffs 2026: 2:09.441 (Mike Reupert)P2 qualifying best at Runoffs 2015: 1:51.825 (Chris Farrell)Off the chart: P2 qualifying best at Runoffs 2016: 1:20.188 (Jeff Shafer)P2 qualifying best at Runoffs 2017: 1:31.826 (Jeff Shafer)P2 qualifying best at Runoffs 2018: 1:28.784 (Tim Day Jr)P2 qualifying best at Runoffs 2019: 1:49.111 (Robert Iversen)P2 qualifying best at Runoffs 2020: 2:08.514 (Robert Iversen)P2 qualifying best at Runoffs 2021: 1:33.235 (Tim Day Jr)P2 qualifying best at Runoffs 2022: 1:47.566 (Tim Day Jr)P2 qualifying best at Runoffs 2023: 1:48.590 (Greg Gyann)P2 qualifying best at Runoffs 2024: 2:07.405 (Bart Wolf)P2 qualifying best at Runoffs 2026: 2:10.606 (Greg Gyann)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)F5 race best at Runoffs 2015: 2:03.298 (Matthew Strand)F5 race best at Runoffs 2016: 1:29.853 (Steven Thompson)F5 race best at Runoffs 2017: 1:42.860 (Wiley Clinton McMahan)F5 race best at Runoffs 2018: 1:42.491 (David Lapham)F5 race best at Runoffs 2019: 1:57.572 (Wiley Mcmahan)F5 race best at Runoffs 2020: 2:21.391 (James Weida)F5 race best at Runoffs 2021: 1:43.140 (Sven de Vries)F5 race best at Runoffs 2022: 2:21.862 (Sven de Vries)F5 qualifying best at Runoffs 2015: 2:01.824 (W. Clint McMahan)F5 qualifying best at Runoffs 2016: 1:28.528 (Calvin Stewart)F5 qualifying best at Runoffs 2017: 1:43.136 (Wiley Clinton McMahan)F5 qualifying best at Runoffs 2018: 1:41.807 (Jeff Jorgenson)F5 qualifying best at Runoffs 2019: 1:57.361 (Wiley Mcmahan)F5 qualifying best at Runoffs 2020: 2:20.954 (Calvin Stewart)F5 qualifying best at Runoffs 2021: 1:42.619 (Ryan Mayfield)F5 qualifying best at Runoffs 2022: 1:57.689 (James Weida)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
P2T3F5FPsolid race · dashed qualifying · slower is lower
100%105%110%115%120%48 rule changes between Runoffs 2018 and Runoffs 201948 ▾57 rule changes between Runoffs 2019 and Runoffs 202057 ▾51 rule changes between Runoffs 2020 and Runoffs 202151 ▾72 rule changes between Runoffs 2021 and Runoffs 202272 ▾42 rule changes between Runoffs 2022 and Runoffs 202342 ▾67 rule changes between Runoffs 2023 and Runoffs 202467 ▾42 rule changes between Runoffs 2024 and Runoffs 202542 ▾66 rule changes between Runoffs 2025 and Runoffs 202666 ▾P2 race best at Runoffs 2015: 100.0% of P2's (Jeff Shafer)P2 race best at Runoffs 2016: 100.0% of P2's (Jeff Shafer)P2 race best at Runoffs 2017: 100.0% of P2's (Jeff Shafer)P2 race best at Runoffs 2018: 100.0% of P2's (Chuck Bona)P2 race best at Runoffs 2019: 100.0% of P2's (Greg Gyann)P2 race best at Runoffs 2020: 100.0% of P2's (Robert Iversen)P2 race best at Runoffs 2021: 100.0% of P2's (Tim Day Jr)P2 race best at Runoffs 2022: 100.0% of P2's (Greg Gyann)P2 race best at Runoffs 2023: 100.0% of P2's (Lucian Pancea)P2 race best at Runoffs 2024: 100.0% of P2's (Bart Wolf)P2 race best at Runoffs 2026: 100.0% of P2's (Mike Reupert)P2 qualifying best at Runoffs 2015: 100.0% of P2's (Chris Farrell)P2 qualifying best at Runoffs 2016: 100.0% of P2's (Jeff Shafer)P2 qualifying best at Runoffs 2017: 100.0% of P2's (Jeff Shafer)P2 qualifying best at Runoffs 2018: 100.0% of P2's (Tim Day Jr)P2 qualifying best at Runoffs 2019: 100.0% of P2's (Robert Iversen)P2 qualifying best at Runoffs 2020: 100.0% of P2's (Robert Iversen)P2 qualifying best at Runoffs 2021: 100.0% of P2's (Tim Day Jr)P2 qualifying best at Runoffs 2022: 100.0% of P2's (Tim Day Jr)P2 qualifying best at Runoffs 2023: 100.0% of P2's (Greg Gyann)P2 qualifying best at Runoffs 2024: 100.0% of P2's (Bart Wolf)P2 qualifying best at Runoffs 2026: 100.0% of P2's (Greg Gyann)T3 race best at Runoffs 2015: 114.2% of P2's (Tom Wickersham)T3 race best at Runoffs 2016: 120.4% of P2's (Robert Schader)T3 race best at Runoffs 2017: 122.5% of P2's (Charles Hurley)T3 race best at Runoffs 2018: 119.0% of P2's (Mark Drennan)T3 race best at Runoffs 2019: 113.7% of P2's (Broderick Bauguess)T3 race best at Runoffs 2020: 116.9% of P2's (Marshall Mast)T3 race best at Runoffs 2021: 118.2% of P2's (Breton Williams)T3 race best at Runoffs 2022: 108.7% of P2's (Marshall Mast)T3 race best at Runoffs 2023: 115.6% of P2's (Chris Hart)T3 race best at Runoffs 2024: 116.3% of P2's (Marshall Mast)T3 race best at Runoffs 2026: 114.0% of P2's (Scotty B White)T3 qualifying best at Runoffs 2015: 115.0% of P2's (Scotty B White)T3 qualifying best at Runoffs 2016: 120.6% of P2's (Charles Hurley)T3 qualifying best at Runoffs 2017: 122.2% of P2's (Rob Hines)Off the chart: T3 qualifying best at Runoffs 2018: 79.6% of P2's (Mark Drennan)T3 qualifying best at Runoffs 2019: 114.5% of P2's (Marshall Mast)T3 qualifying best at Runoffs 2020: 116.5% of P2's (Marshall Mast)T3 qualifying best at Runoffs 2021: 119.7% of P2's (Marshall Mast)T3 qualifying best at Runoffs 2022: 115.5% of P2's (Jason Ott)T3 qualifying best at Runoffs 2023: 114.7% of P2's (Steve Ott)T3 qualifying best at Runoffs 2024: 114.2% of P2's (Scotty B White)T3 qualifying best at Runoffs 2026: 113.2% of P2's (Nic Hammann)F5 race best at Runoffs 2015: 109.7% of P2's (Matthew Strand)F5 race best at Runoffs 2016: 111.1% of P2's (Steven Thompson)F5 race best at Runoffs 2017: 111.2% of P2's (Wiley Clinton McMahan)F5 race best at Runoffs 2018: 111.3% of P2's (David Lapham)F5 race best at Runoffs 2019: 106.6% of P2's (Wiley Mcmahan)F5 race best at Runoffs 2020: 108.9% of P2's (James Weida)F5 race best at Runoffs 2021: 108.2% of P2's (Sven de Vries)F5 race best at Runoffs 2022: 104.4% of P2's (Sven de Vries)F5 qualifying best at Runoffs 2015: 108.9% of P2's (W. Clint McMahan)F5 qualifying best at Runoffs 2016: 110.4% of P2's (Calvin Stewart)F5 qualifying best at Runoffs 2017: 112.3% of P2's (Wiley Clinton McMahan)F5 qualifying best at Runoffs 2018: 114.7% of P2's (Jeff Jorgenson)F5 qualifying best at Runoffs 2019: 107.6% of P2's (Wiley Mcmahan)F5 qualifying best at Runoffs 2020: 109.7% of P2's (Calvin Stewart)F5 qualifying best at Runoffs 2021: 110.1% of P2's (Ryan Mayfield)F5 qualifying best at Runoffs 2022: 109.4% of P2's (James Weida)FP race best at Runoffs 2015: 117.9% of P2's (Kevin Ruck)FP race best at Runoffs 2016: 119.2% of P2's (John Walker)FP race best at Runoffs 2017: 122.2% of P2's (Eric Prill)FP race best at Runoffs 2018: 117.8% of P2's (Joe Huffaker)FP race best at Runoffs 2019: 116.2% of P2's (Eric Prill)FP race best at Runoffs 2020: 118.7% of P2's (Kevin Ruck)Off the chart: FP race best at Runoffs 2021: 125.8% of P2's (Cliff Ira)FP race best at Runoffs 2022: 101.3% of P2's (Mason Workman)FP race best at Runoffs 2023: 117.4% of P2's (Cliff Ira)FP race best at Runoffs 2024: 119.4% of P2's (Kevin Ruck)FP race best at Runoffs 2026: 118.4% of P2's (David Strittmatter)FP qualifying best at Runoffs 2015: 117.2% of P2's (Kevin Ruck)FP qualifying best at Runoffs 2016: 119.6% of P2's (John Walker)FP qualifying best at Runoffs 2017: 122.1% of P2's (Eric Prill)FP qualifying best at Runoffs 2018: 121.2% of P2's (Joe Huffaker)FP qualifying best at Runoffs 2019: 116.8% of P2's (Eric Prill)FP qualifying best at Runoffs 2020: 117.8% of P2's (Ethan Shippert)FP qualifying best at Runoffs 2021: 119.1% of P2's (Craig Chima)FP qualifying best at Runoffs 2022: 117.3% of P2's (Eric Prill)FP qualifying best at Runoffs 2023: 118.1% of P2's (Cliff Ira)FP qualifying best at Runoffs 2024: 119.6% of P2's (Cliff Ira)FP qualifying best at Runoffs 2026: 117.4% of P2'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
P2T3F5FPsolid race · dashed qualifying · each class's best lap as a share of P2's at the same event (the reference class, changeable above); 100% is level, less is quicker, so up the chart is quicker
EventP2T3F5FP
Qual best Race best Trap Qual best Race best Trap vs P2 % of P2 Qual best Race best Trap vs P2 % of P2 Qual best Race best Trap vs P2 % of P2 
Road America Runoffs 20262026-09-282:10.606Greg 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%)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%)+18.099squal +17.284s114.0%qual 113.2%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%)+23.799squal +22.669s118.4%qual 117.4%
66 rule changes (T3: 32, FP: 34)18 weight · 9 engine · 9 induction · 8 tyres & wheels · 7 suspension & brakes · 4 cars added · 1 aero · 1 removed · 4 wording · 5 othershowhide
  • 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
  • T3 Ford FR500S #40031cars added
  • T3 Audi S4 T3 #40241suspension & brakes
  • T3 VW DSG Missing in 2015-2018 VW Golf R Spec Line #40304weight
  • 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
  • T3 350Z #39843induction
  • FP Correct Valve Sizes on FP Fiat x19 1300 and 1500 #39850engine
  • FP Dual Carburetor Adjustments #39851induction
  • 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
  • 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
  • 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
  • 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
  • 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 20252025-09-292:28.676Nic 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%)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%)
42 rule changes (P2: 1, T3: 24, FP: 17)11 weight · 8 cars added · 8 induction · 3 engine · 2 suspension & brakes · 2 tyres & wheels · 3 wording · 5 othershowhide
  • 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
  • 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
  • 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
  • FP Effective date for Jan 2025 GCR updates #37654induction
  • 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
  • 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
  • P2 2000 cc Pinto Engine Car Weight #37187weight
  • 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
Road America Runoffs 20242024-10-012:07.405Bart 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%)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%)+20.869squal +18.045s116.3%qual 114.2%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%)+24.924squal +24.922s119.4%qual 119.6%
67 rule changes (P2: 5, T3: 41, FP: 21)17 weight · 12 induction · 7 cars added · 7 engine · 5 suspension & brakes · 3 tyres & wheels · 3 wording · 13 othershowhide
  • FP Errors/emissions Honda Civic/CRX #36700wording
  • FP Errant entry in HP production line item #36231other
  • T3 Honda Civic Si (2017+) #36249weight
  • T3 Subaru Reliability Help #36284other
  • T3 spec line for 36073 #36338cars added
  • T3 36131 #36339cars 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
  • P2 CN Spec ECU #35835engine
  • P2 E&O - Correct FIA Group CN spec line notes #35900tyres & wheels
  • T3 Allow T4 and T3 RX8 to Disable/Remove Factory Oil Inj. #35761engine
  • T3 Driveshafts #35916weight
  • T3 Audi S4 HST requirement #35918other
  • FP GCR Correction - Redundant HP Spec Lines #35623engine
  • FP Update FP Protege (01-03) Model Info #35715other
  • 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
  • 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
  • P2 E&O - Clarify B.1 modified engine range in AMAC spec lines #35225engine
  • P2 Replacement Engine Crankcase for 07/08 Suzuki GSX-R1000 Engines #35340engine
  • 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
  • P2 Correct Table 1 for Engine Date Range Specifications #35182engine
  • 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 20232023-09-231:48.590Greg 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%)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%)+17.025squal +15.930s115.6%qual 114.7%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%)+18.958squal +19.658s117.4%qual 118.1%
42 rule changes (P2: 8, T3: 28, FP: 6)12 weight · 7 cars added · 5 tyres & wheels · 3 induction · 2 engine · 2 suspension & brakes · 1 removed · 2 wording · 8 othershowhide
  • 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
  • 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
  • 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
  • P2 Clarify minimum side body height requirement #34143tyres & wheels
  • P2 Clarify closed cockpit single seat car allowance #34144wording
  • 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
  • P2 Remove redundant effective date language and update engine table #34012engine
  • P2 E&O - Correct dimensional equivalents #34038weight
  • T3 Request to all ECS Tuning inner-cooler to 06-10 VW GTI spec #33769other
  • 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
  • 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
  • P2 Request to Classify Sebeco NP01 #33378cars added
  • P2 Radical spec line clarifications #33485weight
  • P2 E&O original class intent #33519weight
  • P2 Update Engine Table Spec Line B.1 #33608engine
  • 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
  • T3 Solstice GXP in T3 #33501weight
  • T3 Another 2022 BRZ/86 T3 request #32945weight +225 lbs
Virginia International Raceway Runoffs 20222022-09-241:47.566Tim 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%)2:04.223Jason 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%)+11.792squal +16.657s108.7%qual 115.5%1:57.689James Weida · fastest of 11 · top 5 within 3.9s+0.328s (+0.28%)2:21.862Sven de Vries · fastest of 10 · top 5 within 14.3s+24.290s (+20.66%)142.9Calvin Stewart+0.1 mph (+0.1%)+6.028squal +10.123s104.4%qual 109.4%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%)+1.807squal +18.651s101.3%qual 117.3%
72 rule changes (P2: 10, T3: 31, F5: 6, FP: 25)14 weight · 13 induction · 9 cars added · 9 engine · 6 tyres & wheels · 4 suspension & brakes · 2 aero · 5 wording · 10 othershowhide
  • F5 Intake Boots Correction #33028induction
  • 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
  • F5 Ensure availability of ECU for Rotax engines #32695engine
  • F5 Clarify stepped exhaust header references #32743engine
  • T3 Classify Car #32691cars added
  • T3 2022 BRZ Sway bar and lip spoiler. #32703aero
  • F5 593 carb boot availability and oil pump clarification #32527induction
  • FP Subaru BRZ Model Years #32500other
  • 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
  • P2 E&O Clarification of Chassis Construction Requirements #32469tyres & wheels
  • P2 Clean up P2 wording #32525wording
  • 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
  • P2 After Market to Aftermarket #32373other
  • 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
  • F5 E&O class name #32194other
  • 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
  • P2 Add spec line for Beasley B2 #32147weight
  • P2 E&O Table 1 spec line wing terminology #32148aero
  • P2 E&O class name #32196other
  • 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
  • P2 E&O Engine section #31969engine
  • F5 Data Box Mounting Plate #31638other
  • 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
  • P2 E&O letter #31539 – Control Area definition #31783tyres & wheels
  • 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
  • P2 BoP adjustment effective 1-1-22 #31538engine
  • P2 E&O clarification of "Control Area" definition #31539tyres & wheels
  • T3 Request to correct model years BMW Z4 M Coupe #31371wording
  • T3 Correct letter the 31327 #31563weight +150 lbs
  • 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 20212021-09-251:33.235Tim 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 Iversen1:51.591Marshall 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+17.379squal +18.356s118.2%qual 119.7%1:42.619Ryan Mayfield · fastest of 22 · top 5 within 1.6s-0.517s (-0.50%)1:43.140Sven de Vries · fastest of 20 · top 5 within 1.7s+0.280s (+0.27%)144.4James Weida+7.818squal +9.384s108.2%qual 110.1%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+24.611squal +17.847s125.8%qual 119.1%
51 rule changes (P2: 8, T3: 19, F5: 3, FP: 21)10 cars added · 10 weight · 7 engine · 4 tyres & wheels · 3 induction · 3 suspension & brakes · 1 wording · 13 othershowhide
  • P2 P2 CN Engine Rebuild Clarification #31000engine
  • F5 Clarify allowable assisted shifting systems #30871wording
  • F5 Request to correct terminology #30976tyres & wheels
  • 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
  • P2 F5 P2 Conversion #30856other
  • P2 Clarify minimum body width requirement #30859tyres & wheels
  • 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
  • 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
  • F5 Request to Allow Rotax 593 HO Engine #30712engine
  • FP Move Porsche 924 in Level 1 Prep From EP to FP #30135cars added
  • FP Clarify Application of Percentage Based Weight Penalties #30669weight
  • 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
  • P2 E&O tonneau cover provision in cockpit opening section #30459other
  • P2 Remove effective dates in Table 1 #30468other
  • P2 E&O Maximum Valves Per Cylinder #30560engine
  • 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
  • T3 Request consistency review in GCR #30263other
  • T3 Request to classify 2006-2008 Cayman #30315cars added
  • P2 Add a new spec line for a 2-cycle, 3-cylinder engine up to 820cc #30272engine
  • T3 2020 T3 Suggested Changes #30002weight -50 lbs
  • 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
  • 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
  • P2 Balance of Performance adjustments effective 01-01-2021 #29822induction
  • T3 Alfa Romeo 4C Launch Edition #29531other
Road America Runoffs 20202020-10-022:08.514Robert Iversen · fastest of 12 · top 5 within 3.0s2:09.793Robert Iversen · fastest of 12 · top 5 within 3.9s153.1Robert Iversen2:29.757Marshall Mast · fastest of 29 · top 5 within 2.1s2:31.688Marshall Mast · fastest of 20 · top 5 within 1.8s138.1Jason Ott+21.895squal +21.243s116.9%qual 116.5%2:20.954Calvin Stewart · fastest of 16 · top 5 within 1.8s2:21.391James Weida · fastest of 14 · top 5 within 1.5s143.2Aaron Ellis+11.598squal +12.440s108.9%qual 109.7%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+24.240squal +22.900s118.7%qual 117.8%
57 rule changes (P2: 6, T3: 26, F5: 6, FP: 19)11 cars added · 9 engine · 9 induction · 9 weight · 4 tyres & wheels · 1 aero · 1 suspension & brakes · 5 wording · 8 othershowhide
  • F5 Request to Update Suzuki Engine Years for F500 #29453engine
  • FP 84-87 Toyota Corolla HP Wheel Diameter Allowance Proposal E&O #29458tyres & wheels
  • T3 Request to Classify Honda Civic Type R in T3 #27840cars added
  • P2 E&O clarification of P2 rear wing requirements #29205aero
  • FP EP BMW Z3 Rule Clarification #28998engine
  • T3 Request to classify 2009 Honda Accord v6 manual #28913cars added
  • F5 Request for Cockpit Adjustment of External Jetting Devices #28359other
  • F5 Two Stroke Motors (reply to #28359 WDYT) #28816engine
  • F5 Re letter requesting driver adjustable carb mixture #28840other
  • F5 #28359 WDYT Request for Cockpit Adjustment #28875other
  • FP Request to Classify Porsche 911 2.0L #28456cars added
  • FP Request to change to Carburetor Spec Line 84-87 Mazda 626 #28926induction
  • 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
  • P2 Classify Elan NP01 in P2 Table 1 #28812cars added
  • 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
  • P2 SCCA Enterprises ESR / P2 engine restrictor testing #28669induction
  • 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
  • P2 Add ESR inlet restrictor #27869induction
  • 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
  • P2 Request for Fly by Wire Rule Wording Change #28247engine
  • 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
  • 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
  • F5 Change 600cc restrictor size #27883induction
  • FP Request to List Mazda Miata Throttle Body Size #27907induction
  • FP Request to Classify 2001-2003 Mazda Protege ES in FP #27922cars added
  • P2 Request for addition of BMW Engine in P2 Engine Table #27821engine
  • 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 20192019-10-051:49.111Robert Iversen · fastest of 14 · top 5 within 0.8s1:50.258Greg Gyann · fastest of 13 · top 5 within 0.4s149.4Robert Iversen2:04.918Marshall Mast · fastest of 20 · top 5 within 1.1s2:05.354Broderick Bauguess · fastest of 20 · top 5 within 1.6s138.2Scotty B White+15.096squal +15.807s113.7%qual 114.5%1:57.361Wiley Mcmahan · fastest of 15 · top 5 within 3.8s1:57.572Wiley Mcmahan · fastest of 15 · top 5 within 4.0s142.8Eric McRee+7.314squal +8.250s106.6%qual 107.6%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+17.818squal +18.325s116.2%qual 116.8%
48 rule changes (P2: 9, T3: 29, F5: 1, FP: 9)13 weight · 8 cars added · 6 suspension & brakes · 5 tyres & wheels · 4 engine · 4 induction · 1 removed · 2 wording · 5 othershowhide
  • P2 Update Engine Table Line E notes #27414engine
  • T3 Request Mazda NC MX-5 alternate transmission gear ratios #27155other
  • F5 Request for Weight Increase for Motorcycle Powered Cars #27214weight +25 lbs
  • 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
  • P2 Update P2 Engine Table spec lines to reflect 3/1/2019 #27254engine
  • T3 Request spare tire/wheel clarification #27012tyres & wheels
  • FP Request Miata Eligibility - 2003 #27121other
  • T3 Request guidance for 2014-2017 MK7 Volkswagen GTI #26866weight
  • P2 E&O Transmissions #27006tyres & wheels
  • T3 Request BMW e36 M3 sway bar and links #26885suspension & brakes
  • P2 Request to restrict all cars #26246weight
  • 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
  • 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
  • P2 Change Engine Table Lines B.1 & B.5 #25777engine
  • P2 Change Line A.1 restrictor size #26429induction
  • 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
  • P2 Request to Allow 1345cc Hayabusa Engines for Spec Line P2 Cars #25595engine
  • P2 Change CN inlet restrictor implementation date #25816induction
  • P2 Clarify Honda K20A-FD2 parts requirement #25950weight
  • 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 20182018-10-101:28.784Tim Day Jr · fastest of 17 · top 5 within 5.0s1:32.071Chuck Bona · fastest of 18 · top 5 within 0.9s144.4Tim Day Jr1:10.656Mark Drennan · fastest of 17 · top 5 within 19.6s1:49.610Mark Drennan · fastest of 17 · top 5 within 0.4s108.4Marshall Mast+17.539squal -18.128s119.0%qual 79.6%1:41.807Jeff Jorgenson · fastest of 5 · top 5 within 6.6s1:42.491David Lapham · fastest of 5 · top 5 within 9.5s113.3David Lapham+10.420squal +13.023s111.3%qual 114.7%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+16.410squal +18.804s117.8%qual 121.2%
No rule changes on record between these events
Indianapolis Motor Speedway Runoffs 20172017-09-251:31.826Jeff Shafer · fastest of 26 · top 5 within 4.9s1:32.481Jeff Shafer · fastest of 24 · top 5 within 3.8s1:52.214Rob Hines · fastest of 24 · top 5 within 0.8s1:53.286Charles Hurley · fastest of 22 · top 5 within 0.6s+20.805squal +20.388s122.5%qual 122.2%1:43.136Wiley Clinton McMahan · fastest of 38 · top 5 within 1.4s1:42.860Wiley Clinton McMahan · fastest of 37 · top 5 within 1.6s+10.379squal +11.310s111.2%qual 112.3%1:52.091Eric Prill · fastest of 42 · top 5 within 1.2s1:53.007Eric Prill · fastest of 40 · top 5 within 0.7s+20.526squal +20.265s122.2%qual 122.1%
No rule changes on record between these events
Mid-Ohio Sports Car Course Runoffs 20162016-09-191:20.188Jeff Shafer · fastest of 18 · top 5 within 4.0s1:20.904Jeff Shafer · fastest of 16 · top 5 within 2.2s1:36.741Charles Hurley · fastest of 10 · top 5 within 1.0s1:37.371Robert Schader · fastest of 10 · top 5 within 0.4s+16.467squal +16.553s120.4%qual 120.6%1:28.528Calvin Stewart · fastest of 14 · top 5 within 3.9s1:29.853Steven Thompson · fastest of 12 · top 5 within 4.5s+8.949squal +8.340s111.1%qual 110.4%1:35.938John Walker · fastest of 33 · top 5 within 0.4s1:36.399John Walker · fastest of 27 · top 5 within 0.3s+15.495squal +15.750s119.2%qual 119.6%
No rule changes on record between these events
Daytona International Speedway Runoffs 20152015-09-211:51.825Chris Farrell · fastest of 17 · top 5 within 3.6s1:52.355Jeff Shafer · fastest of 17 · 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+16.008squal +16.748s114.2%qual 115.0%2:01.824W. Clint McMahan · fastest of 16 · top 5 within 3.0s2:03.298Matthew Strand · fastest of 15 · top 5 within 4.9s+10.943squal +9.999s109.7%qual 108.9%2:11.009Kevin Ruck · fastest of 20 · top 5 within 1.6s2:12.419Kevin Ruck · fastest of 18 · top 5 within 1.1s+20.064squal +19.184s117.9%qual 117.2%

By track

TrackEvents Typical % of P2 Best Latest 
Road America4100.0%3 of 4 with P2100.0%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 P2'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.