BoP Lab / Michelin Raceway Road Atlanta

FE vs FV vs SMSE pace at Michelin Raceway Road Atlanta

Quickest here: FV 1:43.556 Andrew Whitston, Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta race

FEFVSMSEsolid race · dashed qualifying · slower is lower

	Event	FE			FV				SMSE
	Event	Qual best	Race best	Trap	Qual best	Race best	Trap	vs FE	Qual best	Race best	Trap	vs FE
	Atlanta Region SCCA Hoosier Super Tour @ Michelin Raceway Road Atlanta 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%)
8 rule changes (FE: 7, FV: 1)1 suspension & brakes · 7 wording · FE adds engine management testing requirements, refusal penalties, and drivetrain violation procedures with post-event assessment. · FE and FE2 Enterprises must use bubble tail P/N WM138014; FE2 allows only this configuration. · FE2 Mazda MZR engine mandatory spec components clarified with part number updates; intake manifold, ECU, harness, PCV, spark plug, muffler, sensors specified; wording standardized. · FE must use SCCA Enterprises Part # WM803010 brake line to control arm covers as delivered, secured with zip ties or tape. · FV ferrous rotor no longer required to be smooth; may have up to three pad cleaning grooves per side. · FE and SRF protest fee structure removed, now references GCR section 8.3.1.D for fees and payment procedure. · FE Hoosier contingency decal requirement reduced from five to three decals with simplified placement rules. · FE requires five Hoosier decals in specified locations: one small on nose or front shock cover, two 12" on front wing plates, two 12" on lower floor panels.showhide 2026-01-01 FE FE & FE2 Rule Updates #39484wordingwordingFE adds engine management testing requirements, refusal penalties, and drivetrain violation procedures with post-event assessment. 2025-10-01 FE FE & FE2 Bubble Tail #38978wordingwordingFE and FE2 Enterprises must use bubble tail P/N WM138014; FE2 allows only this configuration. 2025-09-01 FE FE & FE2 Rule Updates #38901wordingwordingFE2 Mazda MZR engine mandatory spec components clarified with part number updates; intake manifold, ECU, harness, PCV, spark plug, muffler, sensors specified; wording standardized. 2024-12-01 FE Brake Line to A-Arm Covers #37110wordingwordingFE must use SCCA Enterprises Part # WM803010 brake line to control arm covers as delivered, secured with zip ties or tape. 2024-10-01 FV Disc Brakes #36822suspension & brakessuspension & brakesFV ferrous rotor no longer required to be smooth; may have up to three pad cleaning grooves per side. 2024-09-01 FE Protest Fee Clarification #36540wordingwordingFE and SRF protest fee structure removed, now references GCR section 8.3.1.D for fees and payment procedure. 2024-09-01 FE Update on Letter 36620 with new Hoosier Contingency Decal Info #36625wordingwordingFE Hoosier contingency decal requirement reduced from five to three decals with simplified placement rules. 2024-08-01 FE Hoosier Tire Decal Placement #36435wordingwordingFE requires five Hoosier decals in specified locations: one small on nose or front shock cover, two 12" on front wing plates, two 12" on lower floor panels.
	Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta 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 1.3s-2.653s (-2.50%)	102.2Andrew Whitston-6.3 mph (-5.8%)
4 rule changes (FE: 3, FV: 1)4 wording · FE rain light must meet FIA Standard 8874-2019, Technical List No. 76, effective 1/1/2024. · FE allows racer's tape for crash damage and fastener securing, prohibits body seam taping, permits heat exchanger taping only. · FV front wheel bearings wording clarified in GCR 9.1.1.C.10.G. · FE SADEV transmission ratios removed from review notice prior to sealing date.showhide 2024-01-01 FE Update FE Rain Light Rule #34707wordingwordingFE rain light must meet FIA Standard 8874-2019, Technical List No. 76, effective 1/1/2024. 2024-01-01 FE FE/FE2 rule update #35269wordingwordingFE allows racer's tape for crash damage and fastener securing, prohibits body seam taping, permits heat exchanger taping only. 2023-12-01 FV FV Wheel Bearing Clarification #35150wordingwordingFV front wheel bearings wording clarified in GCR 9.1.1.C.10.G. 2023-04-01 FE Update FE SADEV Transmission Rule #33883wordingwordingFE SADEV transmission ratios removed from review notice prior to sealing date.
	Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta ST23MAR102023-03-10				1:46.374Mitchell 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%)
5 rule changes (FE: 5)1 tyres & wheels · 4 wording · FE drivers may now adjust manual brake bias during racing. · FE front and rear wing assembly mounting and adjustment rules clarified; Gurney flap specifications and attachment methods detailed. · FE engine heat shield and insulation material now permitted to protect fuel cell, filter, rail, and lines. · FE tires must be run as delivered in sets of 4. · FE master cylinder specifications clarified: Girling front .700" piston WM802005, rear .750" WM802006.showhide 2022-10-01 FE Brake bias adjuster clarification #33084wordingwordingFE drivers may now adjust manual brake bias during racing. 2022-10-01 FE FE Front and Rear Wing Update & Clarification #33089wordingwordingFE front and rear wing assembly mounting and adjustment rules clarified; Gurney flap specifications and attachment methods detailed. 2022-09-01 FE Engine Heat Shield & Insulation #33019wordingwordingFE engine heat shield and insulation material now permitted to protect fuel cell, filter, rail, and lines. 2022-06-01 FE Update FE/FE2 Tire Rule #32613tyres & wheelstyres & wheelsFE tires must be run as delivered in sets of 4. 2022-06-01 FE Master cylinder clarification #32669wordingwordingFE master cylinder specifications clarified: Girling front .700" piston WM802005, rear .750" WM802006.
	Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta ST22MAR122022-03-12				1:45.892Mitchell 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%)
8 rule changes (FE: 4, FV: 4)1 tyres & wheels · 7 wording · FV connecting rod rules add Brian Crower part #BC6417 and Newland Group #4M113077 as allowed replacements. · FV connecting rods minimum weight 425.0 grams, center-to-center length 130 ± 0.10/-0.25 mm specified. · FV connecting rod suppliers clarified: Crower SP93280B and BrianCrower BC6417 allowed as direct replacements. · FE2 Enterprise windscreen restricted to P/N WM137000; racer's tape allowed for crash damage repair, body panel securing, but not taping of body seams. · FV allows Crower SP93280B and Brian Crower Racing Rods as direct replacement connecting rods, must meet OEM minimum weight. · FE removes tire marking and qualifying session requirements for wet race starts; rain tire rules simplified. · FE radiator screens clarified: may not protrude more than ¼ inch in front of sidepods. · FE radiator screens allowed and recommended, positioned no more than ¼ inch from sidepod front vertical plane.showhide 2022-03-01 FV Connecting Rod Update Request for 9.1.1.C Formula Vee (FV) 5.C.6 #32160wordingwordingFV connecting rod rules add Brian Crower part #BC6417 and Newland Group #4M113077 as allowed replacements. 2022-03-01 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 specified. 2022-01-01 FV Update direct replacement connecting rod information #31843wordingwordingFV connecting rod suppliers clarified: Crower SP93280B and BrianCrower BC6417 allowed as direct replacements. 2021-12-01 FE Two FE2 Rule Updates #31524wordingwordingFE2 Enterprise windscreen restricted to P/N WM137000; racer's tape allowed for crash damage repair, body panel securing, but not taping of body seams. 2021-12-01 FV Formula V Connecting Rod Replacement #31448wordingwordingFV allows Crower SP93280B and Brian Crower Racing Rods as direct replacement connecting rods, must meet OEM minimum weight. 2021-07-01 FE FE Tire Rule Changes #30754tyres & wheelstyres & wheelsFE removes tire marking and qualifying session requirements for wet race starts; rain tire rules simplified. 2021-07-01 FE Radiator Screens Clarification #30792wordingwordingFE radiator screens clarified: may not protrude more than ¼ inch in front of sidepods. 2021-06-01 FE FE Radiator Screens #30575wordingwordingFE radiator screens allowed and recommended, positioned no more than ¼ inch from sidepod front vertical plane.
	Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta 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
23 earlier rule changes on record, in force before Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta (from 2019)7 tyres & wheels · 2 cars added · 2 weight · 1 aero · 1 suspension & brakes · 10 wording · FE front springs increase to 800 lbs ±25 lbs, rear springs decrease to 900 lbs ±25 lbs, Hypercoil parts required. · FE Gurney flap specs clarified: front wing secondary elements limited to .500" ± .030", wing elements to .250" ± .030". · FV now allows 4 bolt wheels, previously restricted to 5 bolt wheels. · FV now supports 4-bolt pattern wheels in addition to existing wheel specifications. · FE Gurney flap wording clarified: permitted on front wing secondary elements only, not main plane. · FE spring rule update effective date moved from June 1 to November 1, 2020. · FV rain tire requirement changed to Hoosier #44266 22.5 x 5.0 x 15 WET or W3. · FE2 class created for 2.0L MZR engine at 1250 lbs minimum; FE 2.3L becomes Regional only through 2019 Runoffs. · FV allows non-spec Hoosier tires in Regional races until 2020-01-01, when spec tires become required. · FV allows rear tires on front of car; mandates Hoosier #43337 fronts and #43353 rears, plus #44266 rain tire from 2020-01-01. · FE and FE2 minimum weight increased to 1270 lbs including driver; spring options and tire warmer ban added. · FV wheels clarified: 15" x 4J standard or 15" x 4.5J steel VW, 5-bolt pattern, same track dimensions. · FE wet tire rear width increases from 7.5 to 8.0 inches, Hoosier 44196 W3. · FV exhaust outlet location tightened to 1–4 inches behind rearmost body part. · FV wheels now permit 15-inch 4.5J steel wheels within C.2 track dimensions, adding to standard 4J options. · FE removes American Racer tires, mandates Hoosier dry 22.0 x 8.0-13 FE front and 22.0 x 10.0-13 FE rear. · FE anti-roll bars may run disconnected; one link removable front, rear, or both for safety. · FE and FE2 Enterprise bubble tail P/N WM138014 newly allowed for both classes. · FV exhaust opening can now extend to 4 inches behind body rear, previously 3 inches maximum. · FV front track maximum 52.500" and rear track 49.125"-50.750" no longer prohibits spacers. · FV disc brake assembly minimum weight clarified to 16.5 lbs total; caliper minimum weight requirement removed. · FE wet tires updated: front Hoosier 44195 W3 and rear 44217 W3, WET designation removed. · FV intake manifold horizontal tube measurement locations clarified between 1.500" and 8.000" on short side.showhide 2020-12-01 FE FE / FE2 Spring Updates #29689suspension & brakessuspension & brakesFE front springs increase to 800 lbs ±25 lbs, rear springs decrease to 900 lbs ±25 lbs, Hypercoil parts required. 2020-10-01 FE FE Gurney Flap Spec Update #29445wordingwordingFE Gurney flap specs clarified: front wing secondary elements limited to .500" ± .030", wing elements to .250" ± .030". 2020-07-01 FV Support for Recommended Item - 4 bolt wheels in FV #29084tyres & wheelstyres & wheelsFV now allows 4 bolt wheels, previously restricted to 5 bolt wheels. 2020-07-01 FV Support for 4-bolt pattern wheels #28955 #29118wordingwordingFV now supports 4-bolt pattern wheels in addition to existing wheel specifications. 2020-06-01 FE FE Gurney flap wicker clarification #28885wordingwordingFE Gurney flap wording clarified: permitted on front wing secondary elements only, not main plane. 2020-05-01 FE FE spring rule update changed to November 1, 2020 #28814wordingwordingFE spring rule update effective date moved from June 1 to November 1, 2020. 2020-03-01 FV Update rain tire designation #28444tyres & wheelstyres & wheelsFV rain tire requirement changed to Hoosier #44266 22.5 x 5.0 x 15 WET or W3. 2020-01-01 FE Request for FE / FE2 preparation rules update #27722cars addedcars addedFE2 class created for 2.0L MZR engine at 1250 lbs minimum; FE 2.3L becomes Regional only through 2019 Runoffs. 2020-01-01 FV FV Allow non-spec tire in Regional competition #26284tyres & wheelstyres & wheelsFV allows non-spec Hoosier tires in Regional races until 2020-01-01, when spec tires become required. 2020-01-01 FV Request to Allow Rear Tires on the Front of Formula Vee #26537tyres & wheelstyres & wheelsFV allows rear tires on front of car; mandates Hoosier #43337 fronts and #43353 rears, plus #44266 rain tire from 2020-01-01. 2019-12-01 FE FE / FE2 Update Rules #27624weightslowerFE and FE2 minimum weight increased to 1270 lbs including driver; spring options and tire warmer ban added. 2019-12-01 FV Clarification on Wheel Bolt Pattern #27603wordingwordingFV wheels clarified: 15" x 4J standard or 15" x 4.5J steel VW, 5-bolt pattern, same track dimensions. 2019-10-01 FE FE Wet Tire E&O #27365tyres & wheelsfasterFE wet tire rear width increases from 7.5 to 8.0 inches, Hoosier 44196 W3. 2019-10-01 FV Allowed Modifications E&O #27398wordingwordingFV exhaust outlet location tightened to 1–4 inches behind rearmost body part. 2019-08-31 FV E&O Wheels #27230tyres & wheelstyres & wheelsFV wheels now permit 15-inch 4.5J steel wheels within C.2 track dimensions, adding to standard 4J options. 2019-07-01 FE FE Tire Update #27029tyres & wheelsunclearFE removes American Racer tires, mandates Hoosier dry 22.0 x 8.0-13 FE front and 22.0 x 10.0-13 FE rear. 2019-05-31 FE FE Anti-Roll Bar Clarification #26912wordingwordingFE anti-roll bars may run disconnected; one link removable front, rear, or both for safety. 2019-05-31 FE FE / FE2 Updated Bubble Tail Rule #26913cars addedcars addedFE and FE2 Enterprise bubble tail P/N WM138014 newly allowed for both classes. 2019-05-31 FV Exhaust termination rule E&O #26702aeroaeroFV exhaust opening can now extend to 4 inches behind body rear, previously 3 inches maximum. 2019-05-01 FV E&O Dimensions #26674wordingwordingFV front track maximum 52.500" and rear track 49.125"-50.750" no longer prohibits spacers. 2019-04-01 FV Request to clarify Disc Brake rules bearing retainer & weights #26262weightslowerFV disc brake assembly minimum weight clarified to 16.5 lbs total; caliper minimum weight requirement removed. 2019-03-01 FE Request to Update Hoosier Rain Tire Part Number for the FE cars #26235wordingwordingFE wet tires updated: front Hoosier 44195 W3 and rear 44217 W3, WET designation removed. 2019-02-01 FV FV Intake Manifold Clarification #26008wordingwordingFV intake manifold horizontal tube measurement locations clarified between 1.500" and 8.000" on short side.

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.