BoP Lab / Michelin Raceway Road Atlanta
FX vs FF pace at Michelin Raceway Road Atlanta
Quickest here: FX 1:25.399 Trent Walko, Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta race · FF 1:30.677 Nicholas d'Orlando, Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta race
| Event | FX | FF | ||||||||
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| Qual best | Race best | Trap | Qual best | Race best | Trap | vs FX | % of FX | |||
| 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%) | |||||||
9 rule changes (FX: 3, FF: 6)3 weight · 2 tyres & wheels · 1 cars added · 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. · FX Ligier JS F422 loses 15 lbs, to 1360 minimum weight. · 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. · FX Ligier JS F4 1st Gen minimum weight drops to 1405 lbs; 2nd Gen rises to 1375 lbs. · FX adds 2nd Gen Ligier JS F422 classification effective 2024-04-01.show
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| Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta ST24MAR082024-03-08 | 1:34.337Brad Yake · only car+5.991s (+6.78%) | 1:36.351Brad Yake · only car+10.952s (+12.82%) | 117.3Brad Yake-19.8 mph (-14.4%) | 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%) | -4.290squal -2.318s | 95.5%qual 97.5% | ||
4 rule changes (FX: 3, FF: 1)1 cars added · 3 wording · FX Formula 4 now complies with Table 1 notes only; removed reference to FIA 2015 technical regulations and FIA/SCCA safety requirements. · FF Honda Fit gains Fast Forward FF800-100 oversize piston ring pack option. · Unable to summarize: FX Formula Mazda spec changes reference attached document not provided. · USF2000 Van Diemen with Mazda MZR LF-DE 2.0L added as spec line car in FC; removed from FX.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%) | |||||||
8 rule changes (FX: 7, FF: 1)2 engine · 1 cars added · 1 induction · 1 weight · 3 wording · FF Honda Fit engine adds Fast Forward part number alternatives for intake, exhaust, oil system, and scavenge pump components. · FX: Wording clarified to remove references to FB and FM in GCR section 1.4.2.D. · Formula Renault 2.0 (10-17) reclassified from FX to FA; weight reduced to 1280 lbs, restrictor removed. · Pro Formula F2000 tube frame reduced to 4 forward gears, sequential carries 25 lb. weight penalty. · FX Formula Mazda minimum weight exception set to 1270 lb. · FX Formula Mazda engine spec changed to six-port 13B only; weight now per notes instead of 1350/1400. · Formula Renault 2.0 (10-17) now requires 45mm Flat Plate Intake Restrictor; fairings prohibited before or after. · USF2000 Tube Frame may now use Performance Electronics PE3-8400 ECU as alternative to Pectel T2.show
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| Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta ST22MAR122022-03-12 | 1:28.346Trent Walko · fastest of 4 · top 4 within 6.6s+0.215s (+0.24%) | 1:25.399Trent Walko · fastest of 4 · top 4 within 5.7s-2.391s (-2.72%) | 137.1Trent Walko+2.7 mph (+2.0%) | 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%) | +5.825squal +3.494s | 106.8%qual 104.0% | ||
8 rule changes (FX: 7, FF: 1)4 tyres & wheels · 1 cars added · 2 wording · 1 other · Formula Mazda tire marking no longer required; compliance now referenced to updated online specifications document. · FX Formula 4 tire choice becomes unrestricted; must comply with FIA F4 2015 Technical Regulations and subsequent safety requirements. · FX USF2000 Tube Frame front tyre changes from radial to unspecified type, rear tyre options added. · FX Formula Renault 2.0 (00-17) tire choice unrestricted; original components required except repairs. · FX USF2000 Tube Frame allows Hoosier radials 20.5x7.0x13 front and 22.5x8.0x13 rear, FC-compliant shocks, Wilwood brakes, Bosch spark plugs. · FX USF2000 Tube Frame now allows any Hoosier radial tire 20.5x7.0x13 front, 22.5x8.0x13 rear. · FX adds 2000-2009 Formula Renault 2.0 / Fran-Am 2000 classified at 1250 lbs with sealed 2.0L Renault F4R 832 engine. · 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 | 1:28.131Austin Hill · fastest of 6 · top 5 within 3.8s | 1:27.790Austin Hill · fastest of 6 · top 5 within 4.1s | 134.4Austin Hill | 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 | +2.887squal +3.188s | 103.3%qual 103.6% | ||
17 earlier rule changes on record, in force before Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta (from 2019)5 cars added · 3 engine · 1 tyres & wheels · 8 wording · Formula Renault 2.0 (2010–2017) newly classified in FX, must comply with Table 1 notes. · 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. · FX FormulaSPEED FS2.0 specification requirements updated; World Speed Inc. deadline removed, compliance now per SCCA website. · Formula Ireland / Formula FX added to FX classification under Table 1 with compliance notes. · FF Honda LC1 ECU implementation date changed from 3/1/2020 to pending availability of support materials. · Formula Ireland/Formula FX car addition to FX Table 1 pending specification submission; not recommended. · FF alternator changes from not required to optional. · Ex-Pro Formula Super Vee classified in FX with 1190 lbs minimum weight, 1600cc or 1835cc VW engine, 6in front and 8in rear wheels. · FormulaSPEED reclassified from FA to FX with 2.0L Mazda MZR engine, 1350 lbs minimum weight, sealed ECU and dampers. · 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. · FX Formula Mazda no longer requires tire marking; must comply with December 2019 GCR rules. · Pro Formula F 2000 Tube Frame engine now must follow current FC rules with restricted ECU map, cams, and air restrictor required. · 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.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 FX" is the class's best as a share of FX'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 FX'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.