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BoP Lab / Michelin Raceway Road Atlanta

AS vs SM vs T2 vs FV pace at Michelin Raceway Road Atlanta

AS at every track →

Lap times across years say as much about the weather as the class. % of AS is each class's best lap as a share of AS'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)
Reference · what % is measured against

Quickest here: AS 1:34.231 Tom Ellis, Super Tour Mar 2021 qualifying · SM 1:41.798 Danny Steyn, Super Tour Mar 2021 qualifying · T2 1:33.058 Raphael Assuncao, Super Tour Mar 2022 race · FV 1:43.556 Andrew Whitston, Super Tour Mar 2024 race

1:401:502:0043 rule changes between Super Tour Mar 2021 and Super Tour Mar 202243 ▾20 rule changes between Super Tour Mar 2022 and Super Tour Mar 202320 ▾38 rule changes between Super Tour Mar 2023 and Super Tour Mar 202438 ▾50 rule changes between Super Tour Mar 2024 and Super Tour Mar 202550 ▾41 rule changes between Super Tour Mar 2025 and Super Tour Mar 202641 ▾AS race best at Super Tour Mar 2021: 1:34.734 (Tom Ellis)AS race best at Super Tour Mar 2022: 1:35.993 (Gregory Eaton)AS race best at Super Tour Mar 2024: 2:00.265 (Phillip Waters)AS race best at Super Tour Mar 2025: 1:35.351 (Thomas J Ellis)AS race best at Super Tour Mar 2026: 1:34.642 (Michael Kamalian)AS qualifying best at Super Tour Mar 2021: 1:34.231 (Tom Ellis)AS qualifying best at Super Tour Mar 2022: 1:36.346 (Gregory Eaton)AS qualifying best at Super Tour Mar 2024: 1:44.301 (Phillip Waters)AS qualifying best at Super Tour Mar 2025: 1:35.467 (Thomas J Ellis)Off the chart: AS qualifying best at Super Tour Mar 2026: 2:28.404 (Michael Kamalian)SM race best at Super Tour Mar 2021: 1:42.564 (Preston Pardus)SM race best at Super Tour Mar 2022: 1:41.864 (Travis Wiley)SM race best at Super Tour Mar 2023: 1:44.097 (Brian Henderson)SM race best at Super Tour Mar 2024: 1:42.995 (Charles Mactutus)SM race best at Super Tour Mar 2025: 1:42.625 (Sean Noonan)SM race best at Super Tour Mar 2026: 1:43.866 (Brett Kowalski)SM qualifying best at Super Tour Mar 2021: 1:41.798 (Danny Steyn)SM qualifying best at Super Tour Mar 2022: 1:42.814 (Connor Zilisch)SM qualifying best at Super Tour Mar 2023: 1:42.619 (Charles Mactutus)SM qualifying best at Super Tour Mar 2024: 1:42.620 (Danny Steyn)SM qualifying best at Super Tour Mar 2025: 1:42.848 (Sean Noonan)SM qualifying best at Super Tour Mar 2026: 1:42.324 (Skyler Cottrell)T2 race best at Super Tour Mar 2021: 1:34.689 (Tim Kezman)T2 race best at Super Tour Mar 2022: 1:33.058 (Raphael Assuncao)T2 race best at Super Tour Mar 2023: 1:36.268 (Aaron Kaplan)T2 race best at Super Tour Mar 2024: 1:36.782 (Michael Kamalian)T2 race best at Super Tour Mar 2025: 1:34.704 (Raphael Assuncao)T2 race best at Super Tour Mar 2026: 1:34.508 (William Bolt)T2 qualifying best at Super Tour Mar 2021: 1:34.790 (Tim Kezman)T2 qualifying best at Super Tour Mar 2022: 1:35.127 (Raphael Assuncao)T2 qualifying best at Super Tour Mar 2023: 1:36.511 (James Keown)T2 qualifying best at Super Tour Mar 2024: 1:36.675 (Michael Kamalian)T2 qualifying best at Super Tour Mar 2025: 1:33.885 (Raphael Assuncao)T2 qualifying best at Super Tour Mar 2026: 1:37.184 (Raphael Assuncao)FV race best at Super Tour Mar 2021: 1:43.747 (Donnie Isley)FV race best at Super Tour Mar 2022: 1:45.920 (Mitchell Ferguson)FV race best at Super Tour Mar 2023: 1:46.617 (Mitchell Ferguson)FV race best at Super Tour Mar 2024: 1:43.556 (Andrew Whitston)FV race best at Super Tour Mar 2026: 1:46.101 (Donnie Isley)FV qualifying best at Super Tour Mar 2021: 1:43.710 (Andrew Whitston)FV qualifying best at Super Tour Mar 2022: 1:45.892 (Mitchell Ferguson)FV qualifying best at Super Tour Mar 2023: 1:46.374 (Mitchell Ferguson)FV qualifying best at Super Tour Mar 2024: 1:44.524 (Andrew Whitston)FV qualifying best at Super Tour Mar 2026: 1:45.061 (Donnie Isley)Super Tour Mar 2021Super Tour Mar2021Super Tour Mar 2022Super Tour Mar2022Super Tour Mar 2023Super Tour Mar2023Super Tour Mar 2024Super Tour Mar2024Super Tour Mar 2025Super Tour Mar2025Super Tour Mar 2026Super Tour Mar2026
ASSMT2FVsolid race · dashed qualifying · slower is lower
70%80%90%100%110%43 rule changes between Super Tour Mar 2021 and Super Tour Mar 202243 ▾20 rule changes between Super Tour Mar 2022 and Super Tour Mar 202320 ▾38 rule changes between Super Tour Mar 2023 and Super Tour Mar 202438 ▾50 rule changes between Super Tour Mar 2024 and Super Tour Mar 202550 ▾41 rule changes between Super Tour Mar 2025 and Super Tour Mar 202641 ▾AS race best at Super Tour Mar 2021: 100.0% of AS's (Tom Ellis)AS race best at Super Tour Mar 2022: 100.0% of AS's (Gregory Eaton)AS race best at Super Tour Mar 2024: 100.0% of AS's (Phillip Waters)AS race best at Super Tour Mar 2025: 100.0% of AS's (Thomas J Ellis)AS race best at Super Tour Mar 2026: 100.0% of AS's (Michael Kamalian)AS qualifying best at Super Tour Mar 2021: 100.0% of AS's (Tom Ellis)AS qualifying best at Super Tour Mar 2022: 100.0% of AS's (Gregory Eaton)AS qualifying best at Super Tour Mar 2024: 100.0% of AS's (Phillip Waters)AS qualifying best at Super Tour Mar 2025: 100.0% of AS's (Thomas J Ellis)AS qualifying best at Super Tour Mar 2026: 100.0% of AS's (Michael Kamalian)SM race best at Super Tour Mar 2021: 108.3% of AS's (Preston Pardus)SM race best at Super Tour Mar 2022: 106.1% of AS's (Travis Wiley)SM race best at Super Tour Mar 2024: 85.6% of AS's (Charles Mactutus)SM race best at Super Tour Mar 2025: 107.6% of AS's (Sean Noonan)SM race best at Super Tour Mar 2026: 109.7% of AS's (Brett Kowalski)SM qualifying best at Super Tour Mar 2021: 108.0% of AS's (Danny Steyn)SM qualifying best at Super Tour Mar 2022: 106.7% of AS's (Connor Zilisch)SM qualifying best at Super Tour Mar 2024: 98.4% of AS's (Danny Steyn)SM qualifying best at Super Tour Mar 2025: 107.7% of AS's (Sean Noonan)SM qualifying best at Super Tour Mar 2026: 68.9% of AS's (Skyler Cottrell)T2 race best at Super Tour Mar 2021: 100.0% of AS's (Tim Kezman)T2 race best at Super Tour Mar 2022: 96.9% of AS's (Raphael Assuncao)T2 race best at Super Tour Mar 2024: 80.5% of AS's (Michael Kamalian)T2 race best at Super Tour Mar 2025: 99.3% of AS's (Raphael Assuncao)T2 race best at Super Tour Mar 2026: 99.9% of AS's (William Bolt)T2 qualifying best at Super Tour Mar 2021: 100.6% of AS's (Tim Kezman)T2 qualifying best at Super Tour Mar 2022: 98.7% of AS's (Raphael Assuncao)T2 qualifying best at Super Tour Mar 2024: 92.7% of AS's (Michael Kamalian)T2 qualifying best at Super Tour Mar 2025: 98.3% of AS's (Raphael Assuncao)T2 qualifying best at Super Tour Mar 2026: 65.5% of AS's (Raphael Assuncao)FV race best at Super Tour Mar 2021: 109.5% of AS's (Donnie Isley)FV race best at Super Tour Mar 2022: 110.3% of AS's (Mitchell Ferguson)FV race best at Super Tour Mar 2024: 86.1% of AS's (Andrew Whitston)FV race best at Super Tour Mar 2026: 112.1% of AS's (Donnie Isley)FV qualifying best at Super Tour Mar 2021: 110.1% of AS's (Andrew Whitston)FV qualifying best at Super Tour Mar 2022: 109.9% of AS's (Mitchell Ferguson)FV qualifying best at Super Tour Mar 2024: 100.2% of AS's (Andrew Whitston)FV qualifying best at Super Tour Mar 2026: 70.8% of AS's (Donnie Isley)Super Tour Mar 2021Super Tour Mar2021Super Tour Mar 2022Super Tour Mar2022Super Tour Mar 2023Super Tour Mar2023Super Tour Mar 2024Super Tour Mar2024Super Tour Mar 2025Super Tour Mar2025Super Tour Mar 2026Super Tour Mar2026
ASSMT2FVsolid race · dashed qualifying · each class's best lap as a share of AS's at the same event (the reference class, changeable above); 100% is level, less is quicker, so up the chart is quicker
EventASSMT2FV
Qual best Race best Trap Qual best Race best Trap vs AS % of AS Qual best Race best Trap vs AS % of AS Qual best Race best Trap vs AS % of AS 
Super Tour Mar 2026 ST26MAR062026-03-062:28.404Michael Kamalian · only car+52.937s (+55.45%)1:34.642Michael Kamalian · only car-0.709s (-0.74%)140.9Michael Kamalian+2.4 mph (+1.7%)1:42.324Skyler Cottrell · fastest of 52 · top 5 within 0.4s-0.524s (-0.51%)1:43.866Brett Kowalski · fastest of 51 · top 5 within 2.4s+1.241s (+1.21%)112.2James Newell+5.2 mph (+4.9%)+9.224squal -46.080s109.7%qual 68.9%1:37.184Raphael Assuncao · fastest of 5 · top 5 within 15.7s+3.299s (+3.51%)1:34.508William Bolt · fastest of 5 · top 5 within 15.7s-0.196s (-0.21%)142.3Raphael Assuncao+4.0 mph (+2.9%)-0.134squal -51.220s99.9%qual 65.5%1:45.061Donnie Isley · fastest of 9 · top 5 within 5.0s+0.537s (+0.51%)1:46.101Donnie Isley · fastest of 9 · top 5 within 3.6s+2.545s (+2.46%)107.1Donnie Isley+4.9 mph (+4.8%)+11.459squal -43.343s112.1%qual 70.8%
41 rule changes (AS: 11, SM: 3, T2: 27)10 weight · 7 induction · 4 cars added · 4 tyres & wheels · 3 engine · 3 suspension & brakes · 1 aero · 1 removed · 2 wording · 6 othershowhide
  • AS Re-Organization of AS Spec lines for 2026 #39887removed
  • T2 BMW 240i Permitted Tune #39861other
  • AS Edelbrock manifold (& timing kit) to Chevy LS Spec Lines Request #39055weight
  • 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
  • AS Restrictor Plate Change for Gen 2 Ford Coyote Engine #39501induction
  • 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
  • AS 1994 Mustang Spec Line Request #39104engine
  • 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
  • AS Cadillac CTS-V BOP Weight Change #38640weight -50 lbs
  • 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
  • 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
  • AS RE: Previous Letter 37695 Update #38245weight -75 lbs
  • AS Errors and Omissions #38234engine
  • SM SMX Data Submission - Penalties #38248other
  • SM SMX Penaly Clarification updated language #38337wording
  • AS Errors and Omission #38055induction
  • AS Request to Add LS1/LS6 Intakes for 5.3L Truck Engine EnO #38197engine
  • SM Clarify Tire Marking Regs #38005tyres & wheels
  • 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
  • AS Flotek Head Plunge Cut Inconsistencies #37502other
  • AS Notes clean up #37693weight
  • T2 Please class the Darkhorse R in T2 #37295cars added
  • T2 T2 350Z Spec Line Cleanup #37603weight
Super Tour Mar 2025 ST25MAR072025-03-071:35.467Thomas J Ellis · fastest of 4 · top 4 within 2.7s-8.834s (-8.47%)1:35.351Thomas J Ellis · fastest of 4 · top 4 within 1.1s-24.914s (-20.72%)138.6James Jost+8.6 mph (+6.6%)1:42.848Sean Noonan · fastest of 35 · top 5 within 0.2s+0.228s (+0.22%)1:42.625Sean Noonan · fastest of 33 · top 5 within 0.6s-0.370s (-0.36%)107.0Sean Noonan+1.8 mph (+1.7%)+7.274squal +7.381s107.6%qual 107.7%1:33.885Raphael Assuncao · fastest of 4 · top 4 within 13.9s-2.790s (-2.89%)1:34.704Raphael Assuncao · fastest of 4 · top 4 within 4.9s-2.078s (-2.15%)138.3Raphael Assuncao+9.4 mph (+7.3%)-0.647squal -1.582s99.3%qual 98.3%
50 rule changes (AS: 12, SM: 5, T2: 32, FV: 1)8 engine · 7 cars added · 7 suspension & brakes · 6 induction · 6 weight · 4 tyres & wheels · 2 removed · 1 wording · 9 othershowhide
  • AS Race memo #37902engine
  • T2 T2 BOP #37312induction
  • 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
  • AS Increase Coyote Engine Restrictor to 80mm #36177induction
  • AS Performance Pack for 2015+ Mustang #36867weight
  • AS Gear Ratios #37131engine
  • AS ECU specs for LS engine #37208engine
  • T2 Remove spec lines that have expired #37269induction
  • T2 BoP for the Various Mustangs #37185weight -50 lbs
  • T2 Spec Corvette Line Clarification. #37441weight
  • SM E&O SMX Regs 9.1.7.1.D.5.u-.w #37070other
  • 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
  • T2 Spec Corvette Change for T2 #37127tyres & wheels
  • FV Disc Brakes #36822suspension & brakes
  • AS Mustang transmission ratios #36662engine
  • SM SMX Camera Rule Correction #36496wording
  • SM AIM ECU Protocol #36556engine
  • SM OE versus OEM Definitons #36608other
  • SM Shifter Bushing #36611suspension & brakes
  • T2 Errors #36214induction -75 lbs
  • T2 Subaru Appeal #36258other
  • T2 S550 Brakes #36571suspension & brakes
  • 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
  • AS Request for Classification of 2018-2023 mustang In #35764cars added
  • AS 6th gen Camaro limited prep #35733cars added
  • AS Chevrolet/Pontiac Camaro & Firebird (82-92) 5.7L V8 LS1 Alum BLK #35825cars added
  • AS Full Prep Head #35891other
  • 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
  • AS Restricted Prep Aftermarket Parts Request #35682other
  • AS Allowance of 11 #35824tyres & wheels
  • T2 Brake Request for 2009 Porsche Cayman #35723suspension & brakes
Super Tour Mar 2024 ST24MAR082024-03-081:44.301Phillip Waters · only car+7.955s (+8.26%)2:00.265Phillip Waters · only car+24.272s (+25.29%)130.0Phillip Waters-13.7 mph (-9.5%)1:42.620Danny Steyn · fastest of 47 · top 5 within 0.4s+0.001s (+0.00%)1:42.995Charles Mactutus · fastest of 46 · top 5 within 0.1s-1.102s (-1.06%)105.2Tyler Brown-6.5 mph (-5.8%)-17.270squal -1.681s85.6%qual 98.4%1:36.675Michael Kamalian · fastest of 2+0.164s (+0.17%)1:36.782Michael Kamalian · only car+0.514s (+0.53%)129.0Michael Kamalian-9.4 mph (-6.8%)-23.483squal -7.626s80.5%qual 92.7%1:44.524Andrew Whitston · fastest of 12 · top 5 within 3.0s-1.850s (-1.74%)1:43.556Andrew Whitston · fastest of 12 · top 5 within 1.6s-3.061s (-2.87%)102.2Andrew Whitston-5.7 mph (-5.2%)-16.709squal +0.223s86.1%qual 100.2%
38 rule changes (AS: 8, T2: 29, FV: 1)10 weight · 8 suspension & brakes · 4 tyres & wheels · 3 cars added · 3 engine · 3 induction · 2 wording · 5 othershowhide
  • AS Request to Classify 1970-1981 Camaro and Firebird in AS #33659cars added
  • AS Fuel Cell 12 #34194other
  • AS Please Classify the 6th Gen Into AS. #35448cars added
  • AS spec lines #35713cars added
  • T2 Reorganize Spec Lines #35375induction
  • T2 370Z Brake Rotor Size Correction #35487suspension & brakes
  • T2 Letter #35154 2018+ Mustang GT Expansion #35488suspension & brakes
  • 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
  • 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
  • FV FV Wheel Bearing Clarification #35150tyres & wheels
  • T2 M2 CS RACING #35122other
  • AS Crate Motor Part Numbers #32944engine
  • AS Request wheel size change #33007tyres & wheels
  • AS Alternative Upper Front Control Arms for Dodge Challenger #33352engine
  • AS Front Brake Caliper Adapters for Dodge Challenger #33353suspension & brakes
  • 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
  • T2 370Z Obsolete Parts & NISMO Alternatives to SPL Parts #34297weight
  • T2 2009 Porsche Cayman Classing Request #34147other
  • T2 C5 Z06 Straight Line Speed #33575weight
  • T2 Allowance of any nonmetallic bushing material in T2 #33833suspension & brakes
  • T2 Allow Adjustable stabilizer bar links #33861suspension & brakes
Super Tour Mar 2023 ST23MAR102023-03-101:42.619Charles Mactutus · fastest of 48 · top 5 within 0.7s-0.195s (-0.19%)1:44.097Brian Henderson · fastest of 47 · top 5 within 0.5s+2.233s (+2.19%)111.7Peter Ensor-1.7 mph (-1.5%)1:36.511James Keown · fastest of 6 · top 5 within 2.1s+1.384s (+1.45%)1:36.268Aaron Kaplan · fastest of 5 · top 5 within 52.6s+3.210s (+3.45%)138.4Aaron Kaplan-8.4 mph (-5.7%)1:46.374Mitchell Ferguson · fastest of 6 · top 5 within 3.0s+0.482s (+0.46%)1:46.617Mitchell Ferguson · fastest of 6 · top 5 within 11.6s+0.697s (+0.66%)107.9Mitchell Ferguson+1.8 mph (+1.7%)
20 rule changes (AS: 3, SM: 2, T2: 15)4 weight · 3 suspension & brakes · 3 tyres & wheels · 2 cars added · 1 engine · 1 wording · 6 othershowhide
  • T2 Honda Civic Type R Tire Size Increase #33672tyres & wheels
  • T2 C5 Corvette Swaybars #33269other
  • T2 Mustang OEM Grill Request #33333other
  • SM BOP for NB1 and NB2 #32309weight
  • 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
  • T2 Heavy Cars #33345weight +125 lbs
  • AS Request to add Hoosier W2 #33031other
  • AS correction of Dodge Challenger specification line #33151wording
  • AS Request CTS-V Spec Line Error Correction #30242weight
  • T2 BMW M235iR/M240iR Min Weight Clarification #32430weight
  • T2 Follow up to Letter 30888 #32477other
  • T2 Request Alternate Front & Rear Strut/Shock Top Hats #32452suspension & brakes
  • T2 Request BoP E92 torque #32456other
  • T2 Classify Cadillac Blackwing #32535cars added
  • SM Update GCR Section 9.1.7.3.A.1. #32217suspension & brakes
  • 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
Super Tour Mar 2022 ST22MAR122022-03-121:36.346Gregory Eaton · fastest of 3 · top 3 within 7.0s+2.115s (+2.24%)1:35.993Gregory Eaton · fastest of 2+1.259s (+1.33%)143.6Gregory Eaton-19.3 mph (-11.9%)1:42.814Connor Zilisch · fastest of 60 · top 5 within 0.3s+1.016s (+1.00%)1:41.864Travis Wiley · fastest of 60 · top 5 within 0.7s-0.700s (-0.68%)113.5Junior Brock-0.1 mph (-0.1%)+5.871squal +6.468s106.1%qual 106.7%1:35.127Raphael Assuncao · fastest of 4 · top 4 within 3.3s+0.337s (+0.36%)1:33.058Raphael Assuncao · fastest of 4 · top 4 within 2.6s-1.631s (-1.72%)146.8Raphael Assuncao+3.5 mph (+2.5%)-2.935squal -1.219s96.9%qual 98.7%1:45.892Mitchell Ferguson · fastest of 8 · top 5 within 3.5s+2.182s (+2.10%)1:45.920Mitchell Ferguson · fastest of 8 · top 5 within 8.3s+2.173s (+2.09%)106.0Jeffrey Filipkowski-2.0 mph (-1.9%)+9.927squal +9.546s110.3%qual 109.9%
43 rule changes (AS: 11, SM: 1, T2: 27, FV: 4)14 weight · 8 suspension & brakes · 5 cars added · 1 engine · 1 induction · 4 wording · 10 othershowhide
  • FV Connecting Rod Update Request for 9.1.1.C Formula Vee (FV) 5.C.6 #32160weight
  • FV E&O clarification of connecting rod center-to-center length #32183weight
  • T2 Reply to letter #31486/29879 T2-T4 Grill openings #31935suspension & brakes
  • T2 C6 Restrictor Help #31995induction
  • T2 BMW Z4M Adjustment #31885weight -50 lbs
  • AS Proposed Revisions to SCCA GCR 2021 Appendix M, Part 3 #30295other
  • AS specification line consolidation and correction #31846wording
  • AS correction of SMG specification line #31847suspension & brakes
  • AS Alternate cylinder heads for full prep engine builds - Evaluation #31851engine
  • FV Update direct replacement connecting rod information #31843weight
  • 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
  • FV Formula V Connecting Rod Replacement #31448weight
  • T2 Typo for BMW M2 CS Cup 2020 #31173suspension & brakes
  • 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
  • AS Request for adjustable Front Upper Control Arms on 4th Gen F-Body #30457other
  • AS Request Pontiac GTO tire size change #30881weight
  • T2 BMW M2 CS Power Stick Part Number #31087wording
  • T2 997.1 EO #30933other
  • T2 Request #30406weight
  • AS Request CTS-V Spec Line Error Correction #30242weight
  • AS Request to consolidate SN95 Mustang '94-'04 Mustang spec lines #30428cars added
  • AS American Sedan Transmission Rule Change Request #30595weight
  • AS Correction to specifications inadvertently deleted #30691wording
  • AS weight adjustments #30700weight +50 lbs
  • 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
  • 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
  • SM Updates - Obsolete Parts & BOP Parts #30438other
  • 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
Super Tour Mar 2021 ST21MAR192021-03-191:34.231Tom Ellis · fastest of 7 · top 5 within 7.4s1:34.734Tom Ellis · fastest of 8 · top 5 within 5.6s163.0Tom Ellis1:41.798Danny Steyn · fastest of 68 · top 5 within 0.7s1:42.564Preston Pardus · fastest of 67 · top 5 within 0.2s113.6Marc Cefalo+7.830squal +7.567s108.3%qual 108.0%1:34.790Tim Kezman · fastest of 10 · top 5 within 2.1s1:34.689Tim Kezman · fastest of 10 · top 5 within 0.9s143.3Aaron Kaplan-0.045squal +0.559s100.0%qual 100.6%1:43.710Andrew Whitston · fastest of 7 · top 5 within 2.8s1:43.747Donnie Isley · fastest of 7 · top 5 within 1.7s108.0Zachary Whitston+9.013squal +9.479s109.5%qual 110.1%
115 earlier rule changes on record, in force before Super Tour Mar 2021 (from 2019)24 weight · 19 suspension & brakes · 15 tyres & wheels · 14 cars added · 9 engine · 7 induction · 2 aero · 8 wording · 17 othershowhide
  • AS AS Mustang LP 4.6 3V Classification Transmission Request #29886weight
  • AS Request CF driveshaft on CTS-V for durability improvement #30117engine
  • AS Adjustment to model years of 5th generation RP Camaro #30348engine
  • T2 Request BMW M2CS door glass removal #30254other
  • 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
  • AS Request for 2015 -2017 Ford Mustang Spec Line #29514cars added
  • AS Request Trunk lid / Rear Hatch clarification #29591wording
  • AS Common Weight for CTS-V Tire #29759weight
  • AS Correction to specifications inadvertently deleted #30041cars added
  • 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
  • AS Request Additional Engine Options for Dodge Challenger Spec Line #29543engine
  • AS Rule simplification spec line communization #29824weight
  • 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
  • SM Radiator E&O Clarifications #29294engine
  • T2 Request 2018+ mustang swaybar update #28659suspension & brakes
  • 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
  • AS Dodge Challenger AS Spec Line Clarification #28698induction
  • AS Dodge Challenger AS Spec Line Clarification #2 #28699aero
  • SM Modifications to prevent failures of Rear Brake Caliper Pin #28953suspension & brakes
  • T2 Request to correct GCR for 2018+ FORD Mustang GT & Ecoboost #28803wording
  • AS Support for R-Type Specification Tires #27450tyres & wheels
  • AS Spec Tire Request #27519tyres & wheels
  • AS Restrictor Plate Change for RP 2011+ Mustang with Coyote Engine #27675induction
  • AS 2005-2009 Restricted Prep 4.6 3V #27908engine
  • AS Request for 2005-2009 Restricted Prep 4.6 3V Parts #27909engine
  • AS Request for Full Preparation Classification for 2010-2014 Camaro #28030other
  • AS Cylinder Heads #28696engine
  • AS Request for Max Rotor Diameter Change #28748suspension & brakes
  • AS Request increase rotor diameter #28797other
  • FV Support for Recommended Item - 4 bolt wheels in FV #29084tyres & wheels
  • FV Support for 4-bolt pattern wheels #28955 #29118tyres & wheels
  • T2 Request to Add a Vehicle to the Roster (contd.) #27698other
  • T2 Request brake upgrade and electric power steering pump #28946suspension & brakes
  • T2 Request to Classify 2004 Mercedes Benz 320 CLK #27663cars added
  • T2 Consider coil spring conversion Corvette in T2 #28824suspension & brakes
  • AS weight adjustments for 2020 season #28785weight -50 lbs
  • 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
  • T2 Limit Changes to the 997.2 Porsche #28242aero
  • T2 Correct T2 Mustang Transmission #28732wording
  • FV Update rain tire designation #28444tyres & wheels
  • T2 Request to Readjust the T2 Porsches #27746induction
  • AS Rear Trailing Arms #28007suspension & brakes
  • AS Weight reduction for cars running iron heads #28010weight
  • AS 05-10 Mustang with HR cam classification #28226cars added
  • AS 10-15 Camaro Full Prep classification #28227cars added
  • 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
  • FV FV Allow non-spec tire in Regional competition #26284tyres & wheels
  • FV Request to Allow Rear Tires on the Front of Formula Vee #26537tyres & wheels
  • 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
  • FV Clarification on Wheel Bolt Pattern #27603tyres & wheels
  • AS Request to add SMG to 9.1.6.B.1 AS Intent #27140other
  • FV Allowed Modifications E&O #27398other
  • FV E&O Wheels #27230tyres & wheels
  • T2 Request spare tire/wheel clarification #27012tyres & wheels
  • AS Request Ride Height Clarification #26598suspension & brakes
  • 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
  • AS Request to Revert to 2017 Weights #25885weight
  • FV Exhaust termination rule E&O #26702other
  • T2 2018+ Audi TT RS Suspension Allowances #26631suspension & brakes
  • T2 Request BOP adjustment for 2018 Honda Civic Type R-TIR removal #26882weight +150 lbs
  • FV E&O Dimensions #26674other
  • FV Request to clarify Disc Brake rules bearing retainer & weights #26262suspension & brakes
  • T2 Request for Removal of Rear Anti-roll Bar in T2 Mustang GT #26533suspension & brakes
  • SM Request to allow aftermarket fuel filters. #26370wording
  • 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
  • AS SMG Mustang eligibility in American sedan #26224cars added
  • FV FV Intake Manifold Clarification #26008induction
  • SM Request 99-00 replacement Wire harnesses #25602engine
  • SM Organize and Clarify 9.1.7.C.1.o. #25913weight
  • SM Strike Tire Tread Language #26123tyres & wheels
  • 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
About this data
Best is the class's fastest lap in that event's qualifying or race sessions, with the driver who set it, how many cars set a time that session and how close the top five were; a best from fewer than three cars is greyed. With two or more classes, "vs" is the gap of each class's best to the first class's at the same event. "% of AS" is the class's best as a share of AS's best at the same event (100% is level, less is quicker): weather and track condition move every class together, so this compares across years where the raw times do not. It still breaks when AS's own field changes or one session was wet and another dry. Newest event first. The coloured figure under each value is the change from the previous event that has one (green is quicker, red slower). Whole laps only, so events with different sector layouts still compare. Weather and track condition are not accounted for.