FE vs SM vs SRF vs FF pace at Michelin Raceway Road Atlanta
Quickest here:SM 1:41.798 Danny Steyn, Super Tour Mar 2021 qualifying · FF 1:30.677 Nicholas d'Orlando, Super Tour Mar 2021 race
FESMSRFFFsolid race · dashed qualifying · slower is lower
Event
FE
SM
SRF
FF
Qual best
Race best
Trap
Qual best
Race best
Trap
vs FE
Qual best
Race best
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vs FE
Qual best
Race best
Trap
vs FE
Super Tour Mar 2026 ST26MAR062026-03-06
1:42.324Skyler Cottrell · fastest of 52 · top 5 within 0.4s-0.524s (-0.51%)
1:42.611Charles Mactutus · fastest of 51 · top 5 within 0.2s-0.014s (-0.01%)
112.2James Newell+5.2 mph (+4.9%)
1:32.437David Ybarra · fastest of 6 · top 5 within 2.6s+0.418s (+0.45%)
1:31.691David Ybarra · fastest of 6 · top 5 within 3.7s-0.370s (-0.40%)
127.3Axel Leroy+5.2 mph (+4.3%)
12 rule changes (FE: 3, SM: 3, SRF: 4, FF: 2)3 tyres & wheels · 1 cars added · 3 wording · 5 other · FE adds engine modification restrictions, testing requirements, and drivetrain violation penalties with competition suspension. · FF clarifies alternative tire eligibility: homologated 1989 or earlier with rocker or outboard suspension all four corners; push-rod/pull-rod cars may seek approval. · FE and FE2 Enterprise bubble tail part WM138014 now allowed; FE2 must use this configuration only. · FE2 minimum weight stays 1270 lbs; intake manifold part number changes to WM301061; ECU to G992012; mandatory spec parts expanded; bubble tail WM138014 now FE only; SADEV transmission no modifications allowed; brake rotor part numbers to W… · FF adds rocker arm and outboard suspension cars option to use Hoosier bias ply slicks or VFF tyres; clarifies mixing rules.showhide
FE FE & FE2 Rule Updates #39484wordingwordingFE adds engine modification restrictions, testing requirements, and drivetrain violation penalties with competition suspension.
FF Formula F Alternative Tire Rule Proposed Clarifications #39281tyres & wheelsadded · tyres & wheelsFF clarifies alternative tire eligibility: homologated 1989 or earlier with rocker or outboard suspension all four corners; push-rod/pull-rod cars may seek approval.
FE FE & FE2 Bubble Tail #38978cars addedaddedFE and FE2 Enterprise bubble tail part WM138014 now allowed; FE2 must use this configuration only.
FE FE & FE2 Rule Updates #38901wordingwordingFE2 minimum weight stays 1270 lbs; intake manifold part number changes to WM301061; ECU to G992012; mandatory spec parts expanded; bubble tail WM138014 now FE only; SADEV transmission no modifications allowed; brake rotor part numbers to W…
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%)
19 rule changes (FE: 4, SM: 5, SRF: 6, FF: 4)4 tyres & wheels · 2 engine · 2 suspension & brakes · 1 weight · 6 wording · 4 other · FF adds alternative tire options for older cars with rocker arm or outboard suspension: bias ply slicks or VFF radials. · FE must use SCCA Part # WM803010 Brake Line to Control Arm covers if used, as delivered, fastened with zip ties or tape only. · FF and FC sequential gearbox weight penalty reduces from 25 lbs to 10 lbs minimum weight addition. · FF Honda Fit pistons: OEM 0.25mm oversize PN 13020-RB7-Z00 or Fast Forward PN FF800-110 now both allowed; standard diameter 73.240mm (2.8835 inches), minimum weight 198.0g. · FF EGR blanking plate rule clarified: VTEC activation valve must be retained and functioning, no modifications permitted. · FE and SRF protest fee rules redirected to GCR section 8.3.1.D for fees and procedure. · FE Hoosier contingency decal requirement reduced from five decals in specific locations to three decals on sides and front. · FE and SRF protest fee rules redirected to GCR section 8.3.1.D for fees and procedure. · FE requires five Hoosier decals: one small on nose or front shock cover, one 12" on each front wing plate, one 12" on each lower floor panel before rear wheels.showhide
FF Formula F Proposal to Invite Older Cars Via a Tire Rule Change #37802tyres & wheelsadded · tyres & wheelsFF adds alternative tire options for older cars with rocker arm or outboard suspension: bias ply slicks or VFF radials.
FE Brake Line to A-Arm Covers #37110otheraddedFE must use SCCA Part # WM803010 Brake Line to Control Arm covers if used, as delivered, fastened with zip ties or tape only.
FF Change FF/FC Weight with Sequential Gearbox #36651weightfaster · weightFF and FC sequential gearbox weight penalty reduces from 25 lbs to 10 lbs minimum weight addition.
FF Alternative Oversize Honda Fit Pistons #37064engineadded · engineFF Honda Fit pistons: OEM 0.25mm oversize PN 13020-RB7-Z00 or Fast Forward PN FF800-110 now both allowed; standard diameter 73.240mm (2.8835 inches), minimum weight 198.0g.
FF Update to FF EGR Blanking Plate Rule #36633wordingwordingFF EGR blanking plate rule clarified: VTEC activation valve must be retained and functioning, no modifications permitted.
FE Protest Fee Clarification #36540wordingwordingFE and SRF protest fee rules redirected to GCR section 8.3.1.D for fees and procedure.
FE Update on Letter 36620 with new Hoosier Contingency Decal Info #36625wordingwordingFE Hoosier contingency decal requirement reduced from five decals in specific locations to three decals on sides and front.
SM Committee) OE versus OEM Definitons #36608other
SM 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
FE Hoosier Tire Decal Placement #36435wordingaddedFE requires five Hoosier decals: one small on nose or front shock cover, one 12" on each front wing plate, one 12" on each lower floor panel before rear wheels.
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+0.442s (+0.43%)
105.2Tyler Brown-6.9 mph (-6.2%)
1:32.019Sebastian Mateo Naranjo · fastest of 7 · top 5 within 4.4s+1.019s (+1.12%)
1:32.061Sebastian Mateo Naranjo · fastest of 7 · top 5 within 3.1s+1.002s (+1.10%)
122.0Calum Dunbar-13.8 mph (-10.1%)
10 rule changes (FE: 3, SRF: 6, FF: 1)2 suspension & brakes · 2 tyres & wheels · 1 engine · 1 weight · 3 wording · 1 other · FE rain light now must meet FIA Standard 8874-2019, Technical List No. 76, effective 1/1/2024. · FE allows racer's tape for crash repair, panel security, and heat exchanger opening control; seam taping banned. · FF Honda Fit gains Fast Forward oversize piston ring option PN FF800-100 as alternative to Riken or Nippon. · FE SADEV transmission rule removes note that all ratios under review and could be updated prior to sealing.showhide
FE Update FE Rain Light Rule #34707wordingwordingFE rain light now must meet FIA Standard 8874-2019, Technical List No. 76, effective 1/1/2024.
FE FE/FE2 rule update #35269wordingwordingFE allows racer's tape for crash repair, panel security, and heat exchanger opening control; seam taping banned.
FF Honda Fit Oversize Piston Rings #35305engineadded · engineFF Honda Fit gains Fast Forward oversize piston ring option PN FF800-100 as alternative to Riken or Nippon.
SRF Update SRF Front W2 Rain Tire Part Number #34118tyres & wheels
FE Update FE SADEV Transmission Rule #33883wordingwordingFE SADEV transmission rule removes note that all ratios under review and could be updated prior to sealing.
Super Tour Mar 2023 ST23MAR102023-03-10
1:42.619Charles Mactutus · fastest of 48 · top 5 within 0.7s-0.195s (-0.19%)
1:42.553Charles Mactutus · fastest of 47 · top 5 within 0.4s+0.689s (+0.68%)
112.2Jonathan Neudorf-1.3 mph (-1.2%)
1:31.000Porter Aiken · fastest of 17 · top 5 within 1.5s-0.840s (-0.91%)
1:31.059Robert Albani · fastest of 17 · top 5 within 0.4s-0.165s (-0.18%)
135.8Callum Baxter+3.7 mph (+2.8%)
11 rule changes (FE: 5, SM: 2, SRF: 3, FF: 1)4 suspension & brakes · 1 engine · 1 tyres & wheels · 1 weight · 3 wording · 1 other · FF Honda Fit engine adds Fast Forward part number alternatives for intake, exhaust, oil system, and scavenge pump components. · FE drivers may now adjust brake bias manually during the race. · FE front and rear wing specifications clarified: adjustment ranges, shimming, Gurney flap sizes, mounting hardware, and measurement references refined. · FE engine heat shield and insulation between block and exhaust now permitted to protect fuel cell, filter, rail, lines. · FE tires must be run as delivered in sets of 4. · FE master cylinders clarified: Girling front .700" piston WM802005, rear .750" piston WM802006.showhide
FF Add Fast Forward Part Numbers for Honda Fit Engine #33752engineadded · engineFF Honda Fit engine adds Fast Forward part number alternatives for intake, exhaust, oil system, and scavenge pump components.
FE Brake bias adjuster clarification #33084suspension & brakesadded · suspension & brakesFE drivers may now adjust brake bias manually during the race.
FE FE Front and Rear Wing Update & Clarification #33089wordingwordingFE front and rear wing specifications clarified: adjustment ranges, shimming, Gurney flap sizes, mounting hardware, and measurement references refined.
FE Engine Heat Shield & Insulation #33019otheraddedFE engine heat shield and insulation between block and exhaust now permitted to protect fuel cell, filter, rail, lines.
FE Update FE/FE2 Tire Rule #32613wordingwordingFE tires must be run as delivered in sets of 4.
FE Master cylinder clarification #32669wordingwordingFE master cylinders clarified: Girling front .700" piston WM802005, rear .750" piston WM802006.
SRF Brake, seal, and air filter clarifications #32670suspension & brakes
SM Update GCR Section 9.1.7.3.A.1. #32217suspension & brakes
Super Tour Mar 2022 ST22MAR122022-03-12
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%)
1:31.840Joe Colasacco · fastest of 7 · top 5 within 1.8s+0.521s (+0.57%)
1:31.224Robert Perona · fastest of 7 · top 5 within 1.6s+0.547s (+0.60%)
132.1Joe Colasacco-1.0 mph (-0.8%)
11 rule changes (FE: 4, SM: 1, SRF: 5, FF: 1)2 weight · 1 aero · 1 engine · 1 tyres & wheels · 3 wording · 3 other · FE removes qualifying tire marking requirements and rain tire set rules; renumbers tire warmer prohibition. · FE radiator screens may not protrude more than ¼ inch in front of the outside vertical plane of the sidepods. · FE radiator screens now allowed, maximum ¼ inch from sidepod front vertical plane. · FF block relief permitted only as needed to fit an allowed crankshaft.showhide
SRF SRF Update Maintenance, Repairs and Seals #30961engine
FE FE Tire Rule Changes #30754wordingwordingFE removes qualifying tire marking requirements and rain tire set rules; renumbers tire warmer prohibition.
FE Radiator Screens Clarification #30792wordingwordingFE radiator screens may not protrude more than ¼ inch in front of the outside vertical plane of the sidepods.
FE FE Radiator Screens #30575aeroadded · aeroFE radiator screens now allowed, maximum ¼ inch from sidepod front vertical plane.
FF Kent crankshaft clarification #30426wordingwordingFF block relief permitted only as needed to fit an allowed crankshaft.
SM Updates - Obsolete Parts & BOP Parts #30438other
Super Tour Mar 2021 ST21MAR192021-03-19
1:41.798Danny Steyn · fastest of 68 · top 5 within 0.7s
1:42.564Preston Pardus · fastest of 67 · top 5 within 0.2s
113.6Marc Cefalo
1:31.319Nicholas d'Orlando · fastest of 11 · top 5 within 1.6s
1:30.677Nicholas d'Orlando · fastest of 11 · top 5 within 0.9s
133.1Cliff Johnson
34 earlier rule changes on record, in force before Super Tour Mar 2021 (from 2019)6 engine · 6 suspension & brakes · 6 tyres & wheels · 3 aero · 3 weight · 1 cars added · 6 wording · 3 other · FE front springs change to 800 lbs Hypercoil WM203013 Silver; rear to 900 lbs Hypercoil WM203014 Silver. · FF class cylinder head now permits optional coolant bleed line pipe thread fitting to swirl tower. · FF Honda LC1 ECU supplied by HPD is permitted effective 12/1/2020 with HPD lambda sensor. · FE Gurney flaps clarified: front wing secondary only at 0.500" ±0.030", rear wing at 0.250" ±0.030". · FF Honda LC1 ECU implementation date clarified to pending, contingent on SCCA receiving sufficient support materials. · FE Gurney flap wicker bill clarified: permitted on front wing secondary elements only, not main plane. · FE2 and FE spring part numbers WM203013 front and WM203014 rear required date moved to November 1, 2020. · FF Kent Engine alternator becomes optional instead of not required. · FF permits HPD LC1 ECU with lambda sensor; E1 ECU no longer supported but existing units may continue. · FF rain tyres now allow Hoosier W3 Radial 185/60R13 front and 205/60R13 rear. · FE2 Mazda 2.0L MZR engine now permitted in all SCCA events at 1250 lbs minimum; FE 2.3L becomes Regional Only through 2019 Runoffs. · FE minimum weight rises to 1270 lbs; FE2 minimum weight rises to 1270 lbs; new spring options added; tire warmers prohibited. · FE Hoosier wet rear tire width increases from 7.5 to 8.0 inches, part number 44196 W3. · FE removes American Racer tires, mandates Hoosier dry tires 22.0 X 8.0-13 and 22.0 X 10.0-13, wet tires 22.0 X 7.5-13 and 22.0 X 9.0-13. · FE anti-roll bar links may be removed one per end for safety, but bars must stay connected. · FE and FE2 Enterprise bubble tail P/N WM138014 newly allowed for both classes. · FE Hoosier rain tyre part numbers updated: front 44195 W3, rear 44217 W3. · FF Honda Fit cylinder honing increased to 73.315mm and oversize pistons PN 13020-RB7-Z00 now permitted with matching ring packs. · FF intake manifold thermal wrap now permitted if easily removable for inspection; no coating allowed. · FF clarifies coolant and oil catch tank capacity requirements: coolant minimum one U.S. pint, oil minimum one U.S. quart per system.showhide
FE FE / FE2 Spring Updates #29689suspension & brakessuspension & brakesFE front springs change to 800 lbs Hypercoil WM203013 Silver; rear to 900 lbs Hypercoil WM203014 Silver.
FF Allow Optional Coolant Bleed Line to Correct a Known Problem #29673otheraddedFF class cylinder head now permits optional coolant bleed line pipe thread fitting to swirl tower.
FF Clarification regarding Honda LC1 ECU implementation date #29684wordingwordingFF Honda LC1 ECU supplied by HPD is permitted effective 12/1/2020 with HPD lambda sensor.
SRF SRF Shocks, Springs and Ride Height. #29688suspension & brakes
FE FE Gurney Flap Spec Update #29445aeroaeroFE Gurney flaps clarified: front wing secondary only at 0.500" ±0.030", rear wing at 0.250" ±0.030".
FF Clarification regarding Honda LC1 ECU implementation #29135wordingwordingFF Honda LC1 ECU implementation date clarified to pending, contingent on SCCA receiving sufficient support materials.
SM Modifications to prevent failures of Rear Brake Caliper Pin #28953suspension & brakes
FE FE Gurney flap wicker clarification #28885wordingwordingFE Gurney flap wicker bill clarified: permitted on front wing secondary elements only, not main plane.
FE FE spring rule update changed to November 1, 2020 #28814wordingwordingFE2 and FE spring part numbers WM203013 front and WM203014 rear required date moved to November 1, 2020.
FF E&O FF Kent Engine alternator language #28204engineadded · engineFF Kent Engine alternator becomes optional instead of not required.
FF Honda Racing HPD low cost ECU proposal #27563engineadded · engineFF permits HPD LC1 ECU with lambda sensor; E1 ECU no longer supported but existing units may continue.
FF Update rain tire designation #28443tyres & wheelsadded · tyres & wheelsFF rain tyres now allow Hoosier W3 Radial 185/60R13 front and 205/60R13 rear.
FE Request for FE / FE2 preparation rules update #27722cars addedaddedFE2 Mazda 2.0L MZR engine now permitted in all SCCA events at 1250 lbs minimum; FE 2.3L becomes Regional Only through 2019 Runoffs.
SRF SRF Rain / Brake Rule - BoD approved as follows #34958suspension & brakes
FE FE / FE2 Update Rules #27624weightslower · weightFE minimum weight rises to 1270 lbs; FE2 minimum weight rises to 1270 lbs; new spring options added; tire warmers prohibited.
SRF SRF / SRF3 Majors & Regional Class Updates #27723other
FE FE Wet Tire E&O #27365tyres & wheelstyres & wheelsFE Hoosier wet rear tire width increases from 7.5 to 8.0 inches, part number 44196 W3.
FE FE Tire Update #27029tyres & wheelstyres & wheelsFE removes American Racer tires, mandates Hoosier dry tires 22.0 X 8.0-13 and 22.0 X 10.0-13, wet tires 22.0 X 7.5-13 and 22.0 X 9.0-13.
FE FE Anti-Roll Bar Clarification #26912suspension & brakessuspension & brakesFE anti-roll bar links may be removed one per end for safety, but bars must stay connected.
FE FE / FE2 Updated Bubble Tail Rule #26913aeroadded · aeroFE and FE2 Enterprise bubble tail P/N WM138014 newly allowed for both classes.
FE Request to Update Hoosier Rain Tire Part Number for the FE cars #26235tyres & wheelstyres & wheelsFE Hoosier rain tyre part numbers updated: front 44195 W3, rear 44217 W3.
SM Request to allow aftermarket fuel filters. #26370wording
FF Request for Oversize Honda Fit Pistons #25810enginefaster · engineFF Honda Fit cylinder honing increased to 73.315mm and oversize pistons PN 13020-RB7-Z00 now permitted with matching ring packs.
FF Heat Shield - Fit Intake #26102aeroadded · aeroFF intake manifold thermal wrap now permitted if easily removable for inspection; no coating allowed.
FF Request catch cans/tanks clarification #26158wordingwordingFF clarifies coolant and oil catch tank capacity requirements: coolant minimum one U.S. pint, oil minimum one U.S. quart per system.
SM Request 99-00 replacement Wire harnesses #25602engine
SM Strike Tire Tread Language #26123tyres & wheels
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. 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.