BoP Lab / Michelin Raceway Road Atlanta

FV vs SRF vs F5 vs AS pace at Michelin Raceway Road Atlanta

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

Quickest here: FV 1:43.556 Andrew Whitston, Super Tour Mar 2024 race · F5 1:30.019 Ryan Mayfield, Super Tour Mar 2021 qualifying · AS 1:34.231 Tom Ellis, Super Tour Mar 2021 qualifying

% of FVLap times

FVSRFF5ASsolid race · dashed qualifying · slower is lower

FVSRFF5ASsolid race · dashed qualifying · each class's best lap as a share of FV's at the same event (the reference class, changeable above); 100% is level, less is quicker, so up the chart is quicker

	Event	FV			SRF					F5					AS
	Event	Qual best	Race best	Trap	Qual best	Race best	Trap	vs FV	% of FV	Qual best	Race best	Trap	vs FV	% of FV	Qual best	Race best	Trap	vs FV	% of FV
	Super Tour Mar 2026 ST26MAR062026-03-06	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%)											2:28.404Michael 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%)	-11.459squal +43.343s	89.2%qual 141.3%
15 rule changes (SRF: 4, AS: 11)4 weight · 3 engine · 2 induction · 1 removed · 5 othershowhide 2026-03-01 AS Re-Organization of AS Spec lines for 2026 #39887removed 2026-03-01 SRF SRF3 Spark Plugs #39899other 2026-02-01 AS Edelbrock manifold (& timing kit) to Chevy LS Spec Lines Request #39055weight 2026-01-01 AS Restrictor Plate Change for Gen 2 Ford Coyote Engine #39501induction 2025-12-01 AS 1994 Mustang Spec Line Request #39104engine 2025-11-01 AS Cadillac CTS-V BOP Weight Change #38640weight -50 lbs 2025-10-01 SRF Add HD Oil Cooler #38979other 2025-07-01 AS RE: Previous Letter 37695 Update #38245weight -75 lbs 2025-06-01 AS Errors and Omissions #38234engine 2025-05-01 AS Errors and Omission #38055induction 2025-05-01 AS Request to Add LS1/LS6 Intakes for 5.3L Truck Engine EnO #38197engine 2025-04-01 AS Flotek Head Plunge Cut Inconsistencies #37502other 2025-04-01 AS Notes clean up #37693weight 2025-04-01 SRF Driver Safety & Comfort #37966other 2025-04-01 SRF Update SADEV transmission specs #37992other
	Super Tour Mar 2025 ST25MAR072025-03-07														1:35.467Thomas 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%)
19 rule changes (FV: 1, SRF: 6, AS: 12)4 engine · 4 tyres & wheels · 3 cars added · 2 suspension & brakes · 1 induction · 1 weight · 1 wording · 3 othershowhide 2025-03-01 AS Race memo #37902engine 2025-01-01 AS Increase Coyote Engine Restrictor to 80mm #36177induction 2025-01-01 AS Performance Pack for 2015+ Mustang #36867weight 2025-01-01 AS Gear Ratios #37131engine 2025-01-01 AS ECU specs for LS engine #37208engine 2024-10-01 FV Disc Brakes #36822suspension & brakes 2024-10-01 SRF Update SRF3 Air Filter Rule #36681other 2024-10-01 SRF Update SRF Brake Rotor Thickness #36687suspension & brakes 2024-10-01 SRF Hoosier Tire Decal Placement #36739tyres & wheels 2024-09-01 AS Mustang transmission ratios #36662engine 2024-09-01 SRF Protest Fee Clarification #36540wording 2024-09-01 SRF Update to Letter 36619 with new Hoosier Contingency Decal Info #36624tyres & wheels 2024-08-01 SRF Update Rain Tire Rule and Hoosier Decal Placement #36436tyres & wheels 2024-06-01 AS Request for Classification of 2018-2023 mustang In #35764cars added 2024-05-01 AS 6th gen Camaro limited prep #35733cars added 2024-05-01 AS Chevrolet/Pontiac Camaro & Firebird (82-92) 5.7L V8 LS1 Alum BLK #35825cars added 2024-05-01 AS Full Prep Head #35891other 2024-04-01 AS Restricted Prep Aftermarket Parts Request #35682other 2024-04-01 AS Allowance of 11 #35824tyres & wheels
	Super Tour Mar 2024 ST24MAR082024-03-08	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%)											1:44.301Phillip 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%)	+16.709squal -0.223s	116.1%qual 99.8%
15 rule changes (FV: 1, SRF: 6, AS: 8)4 tyres & wheels · 3 cars added · 3 suspension & brakes · 2 engine · 1 weight · 2 othershowhide 2024-03-01 AS Request to Classify 1970-1981 Camaro and Firebird in AS #33659cars added 2024-03-01 AS Fuel Cell 12 #34194other 2024-03-01 AS Please Classify the 6th Gen Into AS. #35448cars added 2024-03-01 AS spec lines #35713cars added 2024-01-01 SRF Update SRF Rain / Brake Rule #34706suspension & brakes 2024-01-01 SRF Update SRF Brake Light Rule v1 #34853suspension & brakes 2024-01-01 SRF SRF / SRF3 Rule Updates #35268weight 2023-12-01 FV FV Wheel Bearing Clarification #35150tyres & wheels 2023-10-01 SRF SRF Radiator Rule Update #34805other 2023-08-01 AS Crate Motor Part Numbers #32944engine 2023-08-01 AS Request wheel size change #33007tyres & wheels 2023-08-01 AS Alternative Upper Front Control Arms for Dodge Challenger #33352engine 2023-08-01 AS Front Brake Caliper Adapters for Dodge Challenger #33353suspension & brakes 2023-06-01 SRF Hoosier SRF Wet Front Tire Rule Update #34189tyres & wheels 2023-05-01 SRF Update SRF Front W2 Rain Tire Part Number #34118tyres & wheels
	Super Tour Mar 2023 ST23MAR102023-03-10	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%)
10 rule changes (SRF: 3, F5: 4, AS: 3)2 engine · 2 induction · 2 suspension & brakes · 1 tyres & wheels · 1 weight · 1 wording · 1 othershowhide 2023-03-01 SRF Update SRF Brake Rule #33469suspension & brakes 2022-09-01 AS Request to add Hoosier W2 #33031other 2022-09-01 AS correction of Dodge Challenger specification line #33151wording 2022-09-01 F5 Intake Boots Correction #33028induction 2022-08-01 F5 Ensure availability of ECU for Rotax engines #32695engine 2022-07-01 AS Request CTS-V Spec Line Error Correction #30242weight 2022-07-01 F5 Clarify stepped exhaust header references #32743engine 2022-06-01 F5 593 carb boot availability and oil pump clarification #32527induction 2022-06-01 SRF SRF Tire Rule Update #32614tyres & wheels 2022-06-01 SRF Brake, seal, and air filter clarifications #32670suspension & brakes
	Super Tour Mar 2022 ST22MAR122022-03-12	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%)						1:30.355Wiley McMahan · fastest of 11 · top 5 within 5.0s+0.336s (+0.37%)	1:35.053Wiley McMahan · fastest of 11 · top 5 within 7.6s+4.654s (+5.15%)	138.2Wiley McMahan-3.4 mph (-2.4%)	-10.867squal -15.537s	89.7%qual 85.3%	1:36.346Gregory 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%)	-9.927squal -9.546s	90.6%qual 91.0%
25 rule changes (FV: 4, SRF: 5, F5: 5, AS: 11)10 weight · 3 engine · 2 tyres & wheels · 1 cars added · 1 suspension & brakes · 3 wording · 5 othershowhide 2022-03-01 F5 E&O class name #32194other 2022-03-01 FV Connecting Rod Update Request for 9.1.1.C Formula Vee (FV) 5.C.6 #32160weight 2022-03-01 FV E&O clarification of connecting rod center-to-center length #32183weight 2022-01-01 AS Proposed Revisions to SCCA GCR 2021 Appendix M, Part 3 #30295other 2022-01-01 AS specification line consolidation and correction #31846wording 2022-01-01 AS correction of SMG specification line #31847suspension & brakes 2022-01-01 AS Alternate cylinder heads for full prep engine builds - Evaluation #31851engine 2022-01-01 F5 Data Box Mounting Plate #31638other 2022-01-01 FV Update direct replacement connecting rod information #31843weight 2021-12-01 FV Formula V Connecting Rod Replacement #31448weight 2021-12-01 SRF Three Updates to SRF Rules #31523weight 2021-10-01 AS Request for adjustable Front Upper Control Arms on 4th Gen F-Body #30457other 2021-10-01 AS Request Pontiac GTO tire size change #30881weight 2021-08-01 F5 Clarify allowable assisted shifting systems #30871wording 2021-08-01 F5 Request to correct terminology #30976tyres & wheels 2021-08-01 SRF SRF Wet Tires #30849tyres & wheels 2021-08-01 SRF SADEV-SRF3 Transmission #30926other 2021-08-01 SRF SRF Update Maintenance, Repairs and Seals #30961engine 2021-06-01 AS Request CTS-V Spec Line Error Correction #30242weight 2021-06-01 AS Request to consolidate SN95 Mustang '94-'04 Mustang spec lines #30428cars added 2021-06-01 AS American Sedan Transmission Rule Change Request #30595weight 2021-06-01 AS Correction to specifications inadvertently deleted #30691wording 2021-06-01 AS weight adjustments #30700weight +50 lbs 2021-06-01 F5 Request to Allow Rotax 593 HO Engine #30712engine 2021-06-01 SRF SRF3 Alternator Pulley #30684weight
	Super Tour Mar 2021 ST21MAR192021-03-19	1:43.710Andrew Whitston · fastest of 7 · top 5 within 2.8s	1:43.747Donnie Isley · fastest of 7 · top 5 within 1.7s	108.0Zachary Whitston						1:30.019Ryan Mayfield · fastest of 11 · top 5 within 7.0s	1:30.399Calvin Stewart · fastest of 11 · top 5 within 5.2s	141.6Ryan Mayfield	-13.348squal -13.691s	87.1%qual 86.8%	1:34.231Tom Ellis · fastest of 7 · top 5 within 7.4s	1:34.734Tom Ellis · fastest of 8 · top 5 within 5.6s	163.0Tom Ellis	-9.013squal -9.479s	91.3%qual 90.9%
56 earlier rule changes on record, in force before Super Tour Mar 2021 (from 2019)10 tyres & wheels · 9 engine · 8 weight · 7 suspension & brakes · 5 cars added · 4 induction · 1 aero · 1 wording · 11 othershowhide 2021-03-01 AS AS Mustang LP 4.6 3V Classification Transmission Request #29886weight 2021-03-01 AS Request CF driveshaft on CTS-V for durability improvement #30117engine 2021-03-01 AS Adjustment to model years of 5th generation RP Camaro #30348engine 2021-03-01 SRF Mandatory identification: #30223engine 2021-01-01 AS Request for 2015 -2017 Ford Mustang Spec Line #29514cars added 2021-01-01 AS Request Trunk lid / Rear Hatch clarification #29591wording 2021-01-01 AS Common Weight for CTS-V Tire #29759weight 2021-01-01 AS Correction to specifications inadvertently deleted #30041cars added 2020-12-01 AS Request Additional Engine Options for Dodge Challenger Spec Line #29543engine 2020-12-01 AS Rule simplification spec line communization #29824weight 2020-12-01 SRF SRF Shocks, Springs and Ride Height. #29688suspension & brakes 2020-10-01 F5 Request to Update Suzuki Engine Years for F500 #29453engine 2020-08-01 AS Dodge Challenger AS Spec Line Clarification #28698induction 2020-08-01 AS Dodge Challenger AS Spec Line Clarification #2 #28699aero 2020-07-01 AS Support for R-Type Specification Tires #27450tyres & wheels 2020-07-01 AS Spec Tire Request #27519tyres & wheels 2020-07-01 AS Restrictor Plate Change for RP 2011+ Mustang with Coyote Engine #27675induction 2020-07-01 AS 2005-2009 Restricted Prep 4.6 3V #27908engine 2020-07-01 AS Request for 2005-2009 Restricted Prep 4.6 3V Parts #27909engine 2020-07-01 AS Request for Full Preparation Classification for 2010-2014 Camaro #28030other 2020-07-01 AS Cylinder Heads #28696engine 2020-07-01 AS Request for Max Rotor Diameter Change #28748suspension & brakes 2020-07-01 AS Request increase rotor diameter #28797other 2020-07-01 F5 Request for Cockpit Adjustment of External Jetting Devices #28359other 2020-07-01 F5 Two Stroke Motors (reply to #28359 WDYT) #28816engine 2020-07-01 F5 Re letter requesting driver adjustable carb mixture #28840other 2020-07-01 F5 #28359 WDYT Request for Cockpit Adjustment #28875other 2020-07-01 FV Support for Recommended Item - 4 bolt wheels in FV #29084tyres & wheels 2020-07-01 FV Support for 4-bolt pattern wheels #28955 #29118tyres & wheels 2020-05-01 AS weight adjustments for 2020 season #28785weight -50 lbs 2020-05-01 SRF SRF Bump Stop Correction #27019suspension & brakes 2020-03-01 FV Update rain tire designation #28444tyres & wheels 2020-02-01 AS Rear Trailing Arms #28007suspension & brakes 2020-02-01 AS Weight reduction for cars running iron heads #28010weight 2020-02-01 AS 05-10 Mustang with HR cam classification #28226cars added 2020-02-01 AS 10-15 Camaro Full Prep classification #28227cars added 2020-01-01 F5 Change 600cc restrictor size #27883induction 2020-01-01 FV FV Allow non-spec tire in Regional competition #26284tyres & wheels 2020-01-01 FV Request to Allow Rear Tires on the Front of Formula Vee #26537tyres & wheels 202-01-01 SRF SRF Rain / Brake Rule - BoD approved as follows #34958suspension & brakes 2019-12-01 FV Clarification on Wheel Bolt Pattern #27603tyres & wheels 2019-12-01 SRF SRF Tire Warmer Rule #27622tyres & wheels 2019-12-01 SRF SRF / SRF3 Nose Weight Reduction #27706weight 2019-12-01 SRF SRF / SRF3 Majors & Regional Class Updates #27723other 2019-10-01 AS Request to add SMG to 9.1.6.B.1 AS Intent #27140other 2019-10-01 FV Allowed Modifications E&O #27398other 2019-08-31 F5 Request for Weight Increase for Motorcycle Powered Cars #27214weight +25 lbs 2019-08-31 FV E&O Wheels #27230tyres & wheels 2019-08-01 AS Request Ride Height Clarification #26598suspension & brakes 2019-07-01 SRF SRF Dash Windscreen Kit #27028other 2019-05-31 AS Request to Revert to 2017 Weights #25885weight 2019-05-31 FV Exhaust termination rule E&O #26702other 2019-05-01 FV E&O Dimensions #26674other 2019-04-01 FV Request to clarify Disc Brake rules bearing retainer & weights #26262suspension & brakes 2019-02-01 AS SMG Mustang eligibility in American sedan #26224cars added 2019-02-01 FV FV Intake Manifold Clarification #26008induction

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 FV" is the class's best as a share of FV'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 FV'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.