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BoP Lab / Michelin Raceway Road Atlanta

FV vs SRF vs SMX vs FM pace at Michelin Raceway Road Atlanta

Class · click a class to switch, + to compare alongside (up to 4: remove one to add another)
Reference class · the others' laps as a share of this one's at the same event, so years compare despite weather; + a class above to measure against it

Quickest here: FV 1:43.556 Andrew Whitston, Super Tour Mar 2024 race · SMX 1:24.667 Tyler Gonzales, Super Tour Mar 2026 race

1:251:301:351:401:459 rule changes between Super Tour Mar 2021 and Super Tour Mar 20229 ▾3 rule changes between Super Tour Mar 2022 and Super Tour Mar 20233 ▾7 rule changes between Super Tour Mar 2023 and Super Tour Mar 20247 ▾12 rule changes between Super Tour Mar 2024 and Super Tour Mar 202512 ▾8 rule changes between Super Tour Mar 2025 and Super Tour Mar 20268 ▾FV race best at Super Tour Mar 2021: 1:43.747 (Donnie Isley)FV race best at Super Tour Mar 2022: 1:45.871 (Stevan Davis)FV race best at Super Tour Mar 2023: 1:46.209 (Stevan Davis)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)SMX race best at Super Tour Mar 2024: 1:39.924 (Will Robusto)SMX race best at Super Tour Mar 2025: 1:38.765 (Skyler Cottrell)SMX race best at Super Tour Mar 2026: 1:24.667 (Tyler Gonzales)SMX qualifying best at Super Tour Mar 2024: 1:38.964 (Michael Tinis)SMX qualifying best at Super Tour Mar 2025: 1:38.662 (Camden Gruber)SMX qualifying best at Super Tour Mar 2026: 1:38.517 (Jarrett Jones)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
FVSRFSMXFMsolid race · dashed qualifying · slower is lower
78%80%82%84%86%88%90%92%94%96%98%100%102%9 rule changes between Super Tour Mar 2021 and Super Tour Mar 20229 ▾3 rule changes between Super Tour Mar 2022 and Super Tour Mar 20233 ▾7 rule changes between Super Tour Mar 2023 and Super Tour Mar 20247 ▾12 rule changes between Super Tour Mar 2024 and Super Tour Mar 202512 ▾8 rule changes between Super Tour Mar 2025 and Super Tour Mar 20268 ▾FV race best at Super Tour Mar 2021: 100.0% of FV's (Donnie Isley)FV race best at Super Tour Mar 2022: 100.0% of FV's (Stevan Davis)FV race best at Super Tour Mar 2023: 100.0% of FV's (Stevan Davis)FV race best at Super Tour Mar 2024: 100.0% of FV's (Andrew Whitston)FV race best at Super Tour Mar 2026: 100.0% of FV's (Donnie Isley)FV qualifying best at Super Tour Mar 2021: 100.0% of FV's (Andrew Whitston)FV qualifying best at Super Tour Mar 2022: 100.0% of FV's (Mitchell Ferguson)FV qualifying best at Super Tour Mar 2023: 100.0% of FV's (Mitchell Ferguson)FV qualifying best at Super Tour Mar 2024: 100.0% of FV's (Andrew Whitston)FV qualifying best at Super Tour Mar 2026: 100.0% of FV's (Donnie Isley)SMX race best at Super Tour Mar 2024: 96.5% of FV's (Will Robusto)SMX race best at Super Tour Mar 2026: 79.8% of FV's (Tyler Gonzales)SMX qualifying best at Super Tour Mar 2024: 94.7% of FV's (Michael Tinis)SMX qualifying best at Super Tour Mar 2026: 93.8% of FV's (Jarrett Jones)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
FVSRFSMXFMsolid 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, higher is quicker
EventFVSRFSMXFM
Qual bestRace bestTrapQual bestRace bestTrapvs FV% of FVQual bestRace bestTrapvs FV% of FVQual bestRace bestTrapvs FV% of FV
Super Tour Mar 2026 ST26MAR062026-03-061:45.061Donnie 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%)1:38.517Jarrett Jones · fastest of 20 · top 5 within 0.7s-0.145s (-0.15%)1:24.667Tyler Gonzales · fastest of 21 · top 5 within 15.4s-14.098s (-14.27%)120.7Elivan Goulart+3.7 mph (+3.2%)-21.434squal -6.544s79.8%qual 93.8%
8 rule changes (SRF: 4, SMX: 4)1 tyres & wheels · 1 wording · 6 othershowhide
  • SRF SRF3 Spark Plugs #39899other
  • SRF Add HD Oil Cooler #38979other
  • SMX SMX Data Submission - Penalties #38248other
  • SMX Committee) SMX Penaly Clarification updated language #38337wording
  • SMX Clarify Tire Marking Regs #38004tyres & wheels
  • SMX SMX Data Submission Timeframe #38039other
  • SRF Driver Safety & Comfort #37966other
  • SRF Update SADEV transmission specs #37992other
Super Tour Mar 2025 ST25MAR072025-03-071:38.662Camden Gruber · fastest of 30 · top 5 within 0.2s-0.302s (-0.31%)1:38.765Skyler Cottrell · fastest of 30 · top 5 within 0.5s-1.159s (-1.16%)117.0Cam Ebben+1.0 mph (+0.9%)
12 rule changes (FV: 1, SRF: 6, SMX: 5)3 tyres & wheels · 2 suspension & brakes · 1 engine · 3 wording · 3 other · FV ferrous rotor must not be cross-drilled; pad cleaning grooves limit unchanged at three per side. · FE and SRF protest fee rules redirected to GCR section 8.3.1.D for fees and procedure.showhide
  • SMX E&O SMX Regs 9.1.7.1.D.5.u-.w #37070other
  • FV Disc Brakes #36822wordingwordingFV ferrous rotor must not be cross-drilled; pad cleaning grooves limit unchanged at three per side.
  • SRF Update SRF3 Air Filter Rule #36681other
  • SRF Update SRF Brake Rotor Thickness #36687suspension & brakes
  • SRF Hoosier Tire Decal Placement #36739tyres & wheels
  • SMX SMX Camera Rule Correction #36496wording
  • SMX Committee) AIM ECU Protocol #36556engine
  • SMX Committee) OE versus OEM Definitons #36608other
  • SMX Committee) Shifter Bushing #36611suspension & brakes
  • SRF Protest Fee Clarification #36540wordingwordingFE and SRF protest fee rules redirected to GCR section 8.3.1.D for fees and procedure.
  • SRF Update to Letter 36619 with new Hoosier Contingency Decal Info #36624tyres & wheels
  • SRF Update Rain Tire Rule and Hoosier Decal Placement #36436tyres & wheels
Super Tour Mar 2024 ST24MAR082024-03-081:44.524Andrew Whitston · fastest of 12 · top 5 within 3.0s-1.850s (-1.74%)1:43.556Andrew Whitston · fastest of 12 · top 5 within 1.3s-2.653s (-2.50%)102.2Andrew Whitston-6.3 mph (-5.8%)1:38.964Michael Tinis · fastest of 33 · top 5 within 0.5s1:39.924Will Robusto · fastest of 33 · top 5 within 1.1s116.0Jack Murchison-3.632squal -5.560s96.5%qual 94.7%
7 rule changes (FV: 1, SRF: 6)2 suspension & brakes · 2 tyres & wheels · 1 weight · 1 wording · 1 other · FV front wheel bearings wording clarified; specification unchanged.showhide
  • SRF Update SRF Rain / Brake Rule #34706suspension & brakes
  • SRF Update SRF Brake Light Rule v1 #34853suspension & brakes
  • SRF SRF / SRF3 Rule Updates #35268weight
  • FV FV Wheel Bearing Clarification #35150wordingwordingFV front wheel bearings wording clarified; specification unchanged.
  • SRF SRF Radiator Rule Update #34805other
  • SRF Hoosier SRF Wet Front Tire Rule Update #34189tyres & wheels
  • SRF Update SRF Front W2 Rain Tire Part Number #34118tyres & wheels
Super Tour Mar 2023 ST23MAR102023-03-101:46.374Mitchell Ferguson · fastest of 6 · top 5 within 3.0s+0.482s (+0.46%)1:46.209Stevan Davis · fastest of 6 · top 5 within 1.3s+0.338s (+0.32%)108.5Russell Fredericks+2.5 mph (+2.4%)
3 rule changes (SRF: 3)2 suspension & brakes · 1 tyres & wheelsshowhide
  • SRF Update SRF Brake Rule #33469suspension & brakes
  • SRF SRF Tire Rule Update #32614tyres & wheels
  • SRF Brake, seal, and air filter clarifications #32670suspension & brakes
Super Tour Mar 2022 ST22MAR122022-03-121:45.892Mitchell Ferguson · fastest of 8 · top 5 within 3.5s+2.182s (+2.10%)1:45.871Stevan Davis · fastest of 8 · top 5 within 3.3s+2.124s (+2.05%)106.0Jeffrey Filipkowski-2.0 mph (-1.9%)
9 rule changes (FV: 4, SRF: 5)3 engine · 2 weight · 1 tyres & wheels · 2 wording · 1 other · FV connecting rod options expanded to include BrianCrower part BC6417 and Newland Group part 4M113077. · FV connecting rods minimum weight 425.0 grams, center-to-center length 130 +0.10/-0.25 mm; Crower, BrianCrower, Newland Group parts allowed if meeting specs. · FV Crower connecting rods SP93280B and BC6417 allowed as direct replacement, must meet OEM minimum weight. · FV allows Crower SP93280B and Brian Crower Racing Rods connecting rods as direct replacements, matching OEM minimum weight.showhide
  • FV Connecting Rod Update Request for 9.1.1.C Formula Vee (FV) 5.C.6 #32160engineadded · engineFV connecting rod options expanded to include BrianCrower part BC6417 and Newland Group part 4M113077.
  • FV E&O clarification of connecting rod center-to-center length #32183wordingwordingFV connecting rods minimum weight 425.0 grams, center-to-center length 130 +0.10/-0.25 mm; Crower, BrianCrower, Newland Group parts allowed if meeting specs.
  • FV Update direct replacement connecting rod information #31843wordingwordingFV Crower connecting rods SP93280B and BC6417 allowed as direct replacement, must meet OEM minimum weight.
  • FV Formula V Connecting Rod Replacement #31448engineadded · engineFV allows Crower SP93280B and Brian Crower Racing Rods connecting rods as direct replacements, matching OEM minimum weight.
  • SRF Three Updates to SRF Rules #31523weight
  • SRF SRF Wet Tires #30849tyres & wheels
  • SRF SADEV-SRF3 Transmission #30926other
  • SRF SRF Update Maintenance, Repairs and Seals #30961engine
  • SRF SRF3 Alternator Pulley #30684weight
Super Tour Mar 2021 ST21MAR192021-03-191:43.710Andrew Whitston · fastest of 7 · top 5 within 2.8s1:43.747Donnie Isley · fastest of 7 · top 5 within 1.7s108.0Zachary Whitston
20 earlier rule changes on record, in force before Super Tour Mar 2021 (from 2019)7 tyres & wheels · 3 suspension & brakes · 2 weight · 1 cars added · 1 engine · 3 wording · 3 other · FV now permits 4 bolt wheels in addition to existing specifications. · FV now allows 4-bolt pattern wheels in addition to existing specifications. · FV rain tyre changes to Hoosier #44266 22.5 x 5.0 x 15 WET or W3. · FV allows non-spec Hoosier tyres at Regional races only; Majors, Super Tour, and Runoffs require spec tyres from 1/1/2020. · Formula Vee now allows 22.5 x 5.5 x 15 rear tires on front axle; rain tire mandated as Hoosier #44266 22.5 x 5.0 x 15 from 1/1/2020. · FV wheels may now be 15-inch 4.5J steel VW with same 5-bolt pattern as standard 4J, within track limits. · FV exhaust exit opening repositioned: minimum one inch, maximum four inches behind rear body. · FV allows fifteen-inch steel wheels at 4J or 4.5J width, standard VW sedan or within track dimensions. · FV exhaust outlet opening max distance from body rear increased from 3 to 4 inches. · FV disc brake assembly minimum weight clarified to 16.5 lbs total; caliper minimum weight requirement of 1.65 lbs removed. · FV intake manifold horizontal tube measurement location clarified; removed specific distance ranges from rule text.showhide
  • SRF Mandatory identification: #30223engine
  • SRF SRF Shocks, Springs and Ride Height. #29688suspension & brakes
  • FV Support for Recommended Item - 4 bolt wheels in FV #29084cars addedaddedFV now permits 4 bolt wheels in addition to existing specifications.
  • FV Support for 4-bolt pattern wheels #28955 #29118tyres & wheelsadded · tyres & wheelsFV now allows 4-bolt pattern wheels in addition to existing specifications.
  • SRF SRF Bump Stop Correction #27019suspension & brakes
  • FV Update rain tire designation #28444tyres & wheelstyres & wheelsFV rain tyre changes to Hoosier #44266 22.5 x 5.0 x 15 WET or W3.
  • FV FV Allow non-spec tire in Regional competition #26284tyres & wheelsadded · tyres & wheelsFV allows non-spec Hoosier tyres at Regional races only; Majors, Super Tour, and Runoffs require spec tyres from 1/1/2020.
  • FV Request to Allow Rear Tires on the Front of Formula Vee #26537tyres & wheelsadded · tyres & wheelsFormula Vee now allows 22.5 x 5.5 x 15 rear tires on front axle; rain tire mandated as Hoosier #44266 22.5 x 5.0 x 15 from 1/1/2020.
  • SRF SRF Rain / Brake Rule - BoD approved as follows #34958suspension & brakes
  • FV Clarification on Wheel Bolt Pattern #27603tyres & wheelsadded · tyres & wheelsFV wheels may now be 15-inch 4.5J steel VW with same 5-bolt pattern as standard 4J, within track limits.
  • SRF SRF Tire Warmer Rule #27622tyres & wheels
  • SRF SRF / SRF3 Nose Weight Reduction #27706weight
  • SRF SRF / SRF3 Majors & Regional Class Updates #27723other
  • FV Allowed Modifications E&O #27398wordingwordingFV exhaust exit opening repositioned: minimum one inch, maximum four inches behind rear body.
  • FV E&O Wheels #27230tyres & wheelsadded · tyres & wheelsFV allows fifteen-inch steel wheels at 4J or 4.5J width, standard VW sedan or within track dimensions.
  • SRF SRF Dash Windscreen Kit #27028other
  • FV Exhaust termination rule E&O #26702wordingwordingFV exhaust outlet opening max distance from body rear increased from 3 to 4 inches.
  • FV E&O Dimensions #26674other
  • FV Request to clarify Disc Brake rules bearing retainer & weights #26262weightslower · weightFV disc brake assembly minimum weight clarified to 16.5 lbs total; caliper minimum weight requirement of 1.65 lbs removed.
  • FV FV Intake Manifold Clarification #26008wordingwordingFV intake manifold horizontal tube measurement location clarified; removed specific distance ranges from rule text.

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.