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BoP Lab / Laguna Seca

FA vs FB vs AS vs SRF3 pace at Laguna Seca

Class · click a class to switch, + to compare alongside (up to 4: remove one to add another)
Reference class · the yardstick the % column and chart are measured against

Quickest here: FA 1:27.304 Jay Henry Horak, Super Tour Jul 2019 qualifying · FB 1:24.666 Jake Latham, Super Tour Jul 2019 qualifying · AS 1:40.712 Clark Nunes, Super Tour Jul 2019 qualifying · SRF3 1:37.644 TJ Acker, Super Tour Jul 2019 qualifying

EventFAFBASSRF3
Qual bestRace bestTrapQual bestRace bestTrapvs FA% of FAQual bestRace bestTrapvs FA% of FAQual bestRace bestTrapvs FA% of FA
Super Tour Jul 2019 ST19JUL262019-07-261:27.304Jay Henry Horak · fastest of 11 · top 5 within 2.2s1:27.751Jim Mali · fastest of 11 · top 5 within 3.4s116.8Jim Mali1:24.666Jake Latham · only car1:25.752Jake Latham · only car116.0Jake Latham-1.999squal -2.638s97.7%qual 97.0%1:40.712Clark Nunes · fastest of 4 · top 4 within 7.9s1:40.914Clark Nunes · fastest of 4 · top 4 within 8.0s103.0Michael Thompson+13.163squal +13.408s115.0%qual 115.4%1:37.644TJ Acker · fastest of 25 · top 5 within 0.8s1:38.588Steve Fogg · fastest of 25 · top 5 within 0.7s99.9Mike Miserendino+10.837squal +10.340s112.3%qual 111.8%
10 earlier rule changes on record, in force before Super Tour Jul 2019 (from 2019)3 weight · 2 aero · 1 cars added · 1 engine · 1 wording · 2 other · 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. · FA Line N minimum weight raised to 1375 lbs. · SRF3 multi-piece nose assembly approved for use; no other nose modifications allowed. · FA cars must install AIM part #X47KPFSOLO2R0 data box mount for Majors and Runoffs. · 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… · FA Formula 3 car transmission rules clarified: up to 6 forward gears, limited-slip differential, sequential removed, 25 lb penalty deleted. · AS adds Spec Mustang SMG classification with 107.1 wheelbase, 3.73 gears, 355mm front and 300mm rear brakes. · FA Swift 014-Mazda MZR 2.0 engine no longer sealed by Elite Engines; block, crank, rods, head, cams, manifold now specified with part numbers and dimensions. · FA Swift 016 Mazda 2.3 and 2.5 liter minimum weight increases 30 lbs to 1450.showhide
  • SRF3 SRF Dash Windscreen Kit #27028aeroadded · aeroSRF drivers may now use Dash Windscreen Kit P/N 1180103 or P/N 180102.
  • AS Request to Revert to 2017 Weights #25885weightfaster · weightAS Ford Mustang 79-93 non-Cobra drops 100 lbs to 3150; over 313 CID Cobra drops 100 lbs to 3450.
  • FA Adjust Line N restrictor size and minimum weight #26691weight +30 lbsslower · weightFA Line N minimum weight raised to 1375 lbs.
  • SRF3 New SRF Sectional Nose Rule Addition #26914aeroadded · aeroSRF3 multi-piece nose assembly approved for use; no other nose modifications allowed.
  • FA Add data plate requirement #26707otheraddedFA cars must install AIM part #X47KPFSOLO2R0 data box mount for Majors and Runoffs.
  • SRF3 SRF Brakes and Shock Rule Changes #26629otherotherSRF3 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…
  • FA Request to add FA engine spec lines #26183wordingwordingFA Formula 3 car transmission rules clarified: up to 6 forward gears, limited-slip differential, sequential removed, 25 lb penalty deleted.
  • AS SMG Mustang eligibility in American sedan #26224cars addedaddedAS adds Spec Mustang SMG classification with 107.1 wheelbase, 3.73 gears, 355mm front and 300mm rear brakes.
  • FA FA MZR 2.0 Engine Specification #25814engineengineFA Swift 014-Mazda MZR 2.0 engine no longer sealed by Elite Engines; block, crank, rods, head, cams, manifold now specified with part numbers and dimensions.
  • FA FA 016 weight increase #26063weightslower · weightFA Swift 016 Mazda 2.3 and 2.5 liter minimum weight increases 30 lbs to 1450.
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 FA" is the class's best as a share of FA'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 FA'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.