BoP Lab / Michelin Raceway Road Atlanta
FF vs FV vs F6 vs F5 pace at Michelin Raceway Road Atlanta
Quickest here: FF 1:31.000 Porter Aiken, Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta qualifying · 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 · F5 1:30.355 Wiley McMahan, Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta qualifying
| Event | FF | FV | F6 | F5 | ||||||||||||||||
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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% | |||||||
7 rule changes (FF: 6, FV: 1)2 tyres & wheels · 1 suspension & brakes · 1 weight · 3 wording · FF clarifies alternative tire eligibility for cars homologated 1989 or earlier with rocker arm or outboard suspension on all four corners. · 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. · 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.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% | |||||||
| 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% | |||||||
5 rule changes (FF: 1, F5: 4)1 induction · 4 wording · FF Honda Fit engine adds Fast Forward part number alternatives for intake, exhaust, oil system, and scavenge pump components. · F500 Rotax 493 and 593 intake boots: removed Moto Tassinari V3124-873B-2 option for non-HO, corrected BPP part numbers. · F500 Rotax engines now permitted to use Ingi Tech Sparker ignition DCP-CDI-P2 as alternate ECU. · F500 Honda CBR600RR, Suzuki GSXR600, Yamaha R6 stepped diameter exhaust headers prohibited. · F500 adds optional intake resonator removal for 593 engines with mandatory plugging; clarifies approved 38mm intake boots; permits stock oil injection pump removal.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 | 1:31.224Robert Perona · fastest of 7 · top 5 within 1.6s | 132.1Joe Colasacco | 1:45.892Mitchell Ferguson · fastest of 8 · top 5 within 3.5s | 1:45.871Stevan Davis · fastest of 8 · top 5 within 3.3s | 106.0Jeffrey Filipkowski | +14.647squal +14.052s | 116.1%qual 115.3% | 1:30.355Wiley McMahan · fastest of 11 · top 5 within 5.0s | 1:31.333Wiley McMahan · fastest of 11 · top 5 within 5.4s | 138.2Wiley McMahan | +0.109squal -1.485s | 100.1%qual 98.4% | |||||||
38 earlier rule changes on record, in force before Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta (from 2019)6 tyres & wheels · 3 engine · 2 weight · 1 aero · 1 cars added · 1 induction · 22 wording · 2 other · F500 must install AIM part #X47KPFSOLO2R0 data box mount for Majors Races and Runoffs. · 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. · F5 cars must install AIM part #X47KPFSOLO2R0 data box mount for Majors Races and Runoffs. · FV connecting rod suppliers clarified: Crower SP93280B and BrianCrower BC6417 allowed as direct replacements. · FV allows Crower SP93280B and Brian Crower Racing Rods as direct replacement connecting rods, must meet OEM minimum weight. · F5 clarifies assisted shifting: mechanical only, no solenoids or air-shifters; throttle/ignition devices allowed if driver controls initiation. · F5 single-seat open-wheel cars: rigid suspension terminology changed to limited suspension. · F500 Rotax 593 HO engine added at 875 lbs with MA0242SP1020A or MA0242SP1063A restrictor. · FF block relief permitted only as needed to fit allowed crankshaft. · 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. · F500 Suzuki GSXR600 engine years extended from 2003-2013 to 2003-2019. · FF Honda LC1 ECU implementation date changed from 3/1/2020 to pending availability of support materials. · F5 request to adjust external jetting devices cockpit control denied by Club Racing Board. · Unable to summarize: letter references response in separate Fastrack document not provided. · 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. · 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. · F500 Honda CBR600RR, Suzuki GSXR600, Yamaha R6 restrictor reduced from 29mm to 28mm Flat Plate Intake. · 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. · FV wheels clarified: 15" x 4J standard or 15" x 4.5J steel VW, 5-bolt pattern, same track dimensions. · FV exhaust outlet location tightened to 1–4 inches behind rearmost body part. · F500 Honda CBR600RR, Suzuki GSXR600, and Yamaha R6 (03-13) minimum weight increases from 875 to 900 lbs. · FV wheels now permit 15-inch 4.5J steel wheels within C.2 track dimensions, adding to standard 4J options. · 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. · 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.