BoP Lab / World Wide Technology Raceway
AS vs FE2 vs SM vs SRF3 pace at World Wide Technology Raceway
Quickest here: AS 1:08.494 Philip Smith, ADS 2020 qualifying · FE2 58.649 Scott Rettich, ADS 2020 qualifying · SM 1:11.508 Kyle Greenhill, ADS 2020 qualifying · SRF3 1:05.764 Richard Wiese, ADS 2020 qualifying
| Event | AS | FE2 | SM | SRF3 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Qual best | Race best | Trap | Qual best | Race best | Trap | vs AS | % of AS | Qual best | Race best | Trap | vs AS | % of AS | Qual best | Race best | Trap | vs AS | % of AS | |||
| ADS 2020 ADS202020-05-29 | 1:08.494Philip Smith · fastest of 3 · top 3 within 5.0s | 1:09.095Philip Smith · fastest of 3 · top 3 within 2.6s | 141.6Philip Smith | 58.649Scott Rettich · fastest of 4 · top 4 within 2.3s | 58.825Scott Rettich · fastest of 4 · top 4 within 3.9s | 141.1Scott Rettich | -10.270squal -9.845s | 85.1%qual 85.6% | 1:11.508Kyle Greenhill · fastest of 13 · top 5 within 0.7s | 1:11.767Jim Drago · fastest of 12 · top 5 within 1.2s | 116.3Cooper Lilly | +2.672squal +3.014s | 103.9%qual 104.4% | 1:05.764Richard Wiese · fastest of 21 · top 5 within 0.6s | 1:06.293Richard Wiese · fastest of 21 · top 5 within 0.7s | 129.9Justin Claucherty | -2.802squal -2.730s | 95.9%qual 96.0% | ||
23 earlier rule changes on record, in force before ADS 2020 (from 2019)5 weight · 4 cars added · 2 aero · 2 suspension & brakes · 1 tyres & wheels · 6 wording · 3 other · SRF3 bump stop must be SCCA P/N 280407, no modifications, optional, maximum one per shock. · SRF Penske shock P/N 280396 bump stop P/N 280407 becomes mandatory, maximum one per shock, effective 05/01/2020. · AS rear trailing arms may be replaced with tubular arms maintaining stock length and axle location purpose only. · AS Ford and GM full prep cars get increased weight reduction from 150 to 200 lbs. · 05-10 Ford Mustang Coupe GT 4.6L OHC classified AS with 3200 lbs minimum weight, HR cam permitted. · 10-15 Camaro Full Prep classified AS with 3400 lbs base weight, 3700 lbs over 313 CID, specific head castings and Edelbrock heads permitted. · SRF rain and brake rule supersedes GCR 9.3.32.B.2 effective 1/1/2024 through 12/31/2024. · FE minimum weight rises to 1270 lbs; FE2 minimum weight rises to 1270 lbs; new spring options added; tire warmers prohibited. · SRF adds tire warmer prohibition and specifies Hoosier dry and wet tire part numbers. · SRF front nose weight minimum reduced from 35 to 32 lbs. · SRF2 becomes Regional Only; SRF3 nomenclature changed from GEN3 to Ford 1.6L conversion; SRF and SRF3 no longer compete together for points. · AS Spec Mustang (SMG) added as Restricted Prep class. · AS class ride height minimum clarified: five inches measured at rocker panel, excluding seams and stock effects. · SRF drivers may now use Dash Windscreen Kit P/N 1180103 or P/N 180102. · AS Ford Mustang 79-93 non-Cobra drops 100 lbs to 3150; over 313 CID Cobra drops 100 lbs to 3450. · SRF3 multi-piece nose assembly approved for use; no other nose modifications allowed. · SRF3 brakes now accept Hawk Blue 9012 pads P/N 801993 only; Wilwood vented rotor P/N 800065 minimum 13.25mm as delivered; caliper bushings P/N 1196185 A or B permitted. Shock absorbers: Penske P/N 280396 only, sealed, with SCCA bump rubber… · SM fuel pump and filter now permitted as Mazda or OEM equivalent part. · AS adds Spec Mustang SMG classification with 107.1 wheelbase, 3.73 gears, 355mm front and 300mm rear brakes. · SM allows factory Mazda ECU and injector harnesses (P/N 0000-10-020E-99, 0000-10-080D-99) on 1999–2000 model year cars, unmodified. · SM electrical rules reorganized and clarified; alternator now externally regulated only by OEM ECU or master kill switch; harness repair by splicing permitted. · SM tire tread protrusion language removed from GCR 9.1.7.C.5.show
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About this data
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 AS" is the class's best as a share of AS'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 AS'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.