BoP Lab / Michelin Raceway Road Atlanta
FF vs FE vs FV vs F6 pace at Michelin Raceway Road Atlanta
Quickest here: FF 1:30.677 Nicholas d'Orlando, Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta race · FV 1:43.556 Andrew Whitston, Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta race · F6 1:30.014 Clint McMahan, Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta qualifying
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| Qual best | Race best | Trap | Qual best | Race best | Trap | vs FF | % of FF | Qual best | Race best | Trap | vs FF | % of FF | Qual best | Race best | Trap | vs FF | % of FF | |||
| Atlanta Region SCCA Hoosier Super Tour @ Michelin Raceway Road Atlanta ST26MAR062026-03-06 | 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%) | 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%) | +14.410squal +12.624s | 115.7%qual 113.7% | 1:30.039Calvin Stewart · fastest of 4 · top 4 within 13.3s+0.025s (+0.03%) | 1:33.719H Cory Mcleod · fastest of 3 · top 3 within 14.2s+3.452s (+3.82%) | 137.8Calvin Stewart+5.7 mph (+4.3%) | +2.028squal -2.398s | 102.2%qual 97.4% | |||||||
14 rule changes (FF: 6, FE: 7, FV: 1)2 tyres & wheels · 1 suspension & brakes · 1 weight · 10 wording · FE adds engine management testing requirements, refusal penalties, and drivetrain violation procedures with post-event assessment. · FF clarifies alternative tire eligibility for cars homologated 1989 or earlier with rocker arm or outboard suspension on all four corners. · 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. · FF adds rocker arm and outboard suspension cars optional bias ply and VFF tires; removes front-as-rear rule, adds mixing restrictions. · FF allows older cars with rocker arm or outboard suspension to use bias ply slicks or VFF tires instead of radials. · FE must use SCCA Enterprises Part # WM803010 brake line to control arm covers as delivered, secured with zip ties or tape. · FF and FC cars with sequential gearbox must add 10 lbs. to minimum weight, down from 25 lbs. · FF Honda Fit allows Fast Forward 0.25mm oversize pistons PN FF800-110 as alternative; piston diameter spec clarified to 2.8835 inches. · FF VTEC activation valve must function; EGR blanking plate rule clarified with Fast Forward part numbers. · 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.show
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| Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta ST24MAR082024-03-08 | 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%) | 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%) | +11.495squal +12.505s | 112.5%qual 113.6% | 1:30.014Clint McMahan · fastest of 8 · top 5 within 4.6s-5.777s (-6.03%) | 1:30.267Clint McMahan · fastest of 8 · top 5 within 4.8s-4.980s (-5.23%) | 132.1Calvin Stewart-3.7 mph (-2.7%) | -1.794squal -2.005s | 98.1%qual 97.8% | |||||||
5 rule changes (FF: 1, FE: 3, FV: 1)5 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. · FF Honda Fit gains Fast Forward FF800-100 oversize piston ring pack option. · 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.show
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| Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta ST23MAR102023-03-10 | 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%) | 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%) | +15.150squal +15.374s | 116.6%qual 116.9% | 1:35.791George Bugg · fastest of 5 · top 5 within 8.8s | 1:35.247H Cory McLeod · fastest of 5 · top 5 within 9.3s | 135.8Jack Walbran | +4.188squal +4.791s | 104.6%qual 105.3% | |||||||
6 rule changes (FF: 1, FE: 5)1 tyres & wheels · 5 wording · FF Honda Fit engine adds Fast Forward part number alternatives for intake, exhaust, oil system, and scavenge pump components. · 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.show
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| Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta ST22MAR122022-03-12 | 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%) | 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%) | +14.647squal +14.052s | 116.1%qual 115.3% | ||||||||||||
9 rule changes (FF: 1, FE: 4, FV: 4)1 tyres & wheels · 8 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. · FF block relief permitted only as needed to fit allowed crankshaft.show
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| Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta ST21MAR192021-03-19 | 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 | 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 | +13.070squal +12.391s | 114.4%qual 113.6% | ||||||||||||
32 earlier rule changes on record, in force before Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta (from 2019)8 tyres & wheels · 2 cars added · 2 engine · 2 weight · 1 aero · 1 suspension & brakes · 16 wording · FE front springs increase to 800 lbs ±25 lbs, rear springs decrease to 900 lbs ±25 lbs, Hypercoil parts required. · FF class cylinder head may now have optional coolant bleed line fitting to top of head for air release. · FF Honda LC1 ECU by HPD permitted effective 12/1/2020, must use HPD lambda sensor. · FE Gurney flap specs clarified: front wing secondary elements limited to .500" ± .030", wing elements to .250" ± .030". · FF Honda LC1 ECU implementation date changed from 3/1/2020 to pending availability of support materials. · 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. · FF alternator changes from not required to optional. · FF allows Honda HPD LC1 low-cost ECU with lambda sensor; E1 ECU no longer supported but existing units permitted if sealed. · FF rain tyres now allow Hoosier W3 Radial in addition to existing Hoosier Wet option. · 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. · FF Honda Fit permitted to use 0.25mm oversize pistons, cylinder honing increased to 73.315mm maximum. · FF heat shield rule clarified: thermal wrap allowed on manifold exterior if easily removable for inspection. · FF catch tank minimum capacity rules clarified: coolant catch tank now one U.S. pint minimum, oil catch tank one U.S. quart minimum. · FV intake manifold horizontal tube measurement locations clarified between 1.500" and 8.000" on short side.show
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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 FF" is the class's best as a share of FF'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 FF'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.