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BoP Lab / Laguna Seca

GT1 vs SM vs AS vs F5 pace at Laguna Seca

Class · click a class to switch, + to compare alongside (up to 4: remove one to add another)
vsAS×B-SpecEPvsF5×FAFCFE2FFFPFVGT1×GT2HPP2vsSM×SRF3STLSTUT1T2T3T4Show 6 inactive classes
Reference class · the others' laps as a share of this one's at the same event, so years compare despite weather; + a class above to measure against it

Quickest here: SM 1:46.110 Tristan Littlehale, Super Tour Jul 2019 race · AS 1:40.712 Clark Nunes, Super Tour Jul 2019 qualifying

EventGT1SMASF5
Qual bestRace bestTrapQual bestRace bestTrapvs GT1Qual bestRace bestTrapvs GT1Qual bestRace bestTrapvs GT1
Super Tour Jul 2019 ST19JUL262019-07-261:46.159Tristan Littlehale · fastest of 11 · top 5 within 1.9s1:46.110Tristan Littlehale · fastest of 11 · top 5 within 1.2s87.0Justin Casey1:40.712Clark Nunes · fastest of 4 · top 4 within 7.9s1:40.914Clark Nunes · fastest of 4 · top 4 within 8.0s103.0Michael Thompson
11 earlier rule changes on record, in force before Super Tour Jul 2019 (from 2019)2 cars added · 1 aero · 1 engine · 1 weight · 3 wording · 3 other · GT1 allows Trans Am rear wing, 72" span, 12" chord, 1/2" wicker, 100 sq in endplates, no weight penalty; front undertray allowed with 50 lb penalty. · AS Ford Mustang 79-93 non-Cobra drops 100 lbs to 3150; over 313 CID Cobra drops 100 lbs to 3450. · GTX tube frame cars now allowed fuel injection with maximum 90mm throttle body. · GTX adds Ligier JS2 R classification with restrictor and minimum weight. · GT1 and GT2/3/Lite remove ride height ground clearance rules; cars may now touch ground when tires deflate. · 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. · GTX FIA GT3: Audi R8 now 40 mm restrictor and 2900 lbs; BMW Z4 now 70 mm restrictor and 2800 lbs; Ferrari 488 now 35 mm restrictor, TIR, and 3025 lbs.showhide
  • GT1 Clarify Trans Am Legal Bodywork and Wing #26953aeroadded · aeroGT1 allows Trans Am rear wing, 72" span, 12" chord, 1/2" wicker, 100 sq in endplates, no weight penalty; front undertray allowed with 50 lb penalty.
  • 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.
  • GT1 Request GTX Fuel injection for previous GT-1 tube frame cars #26141engineadded · engineGTX tube frame cars now allowed fuel injection with maximum 90mm throttle body.
  • GT1 Request to Classify Ligier JS2 R #26535cars addedaddedGTX adds Ligier JS2 R classification with restrictor and minimum weight.
  • GT1 Request Ride Height Clarification #26600wordingfasterGT1 and GT2/3/Lite remove ride height ground clearance rules; cars may now touch ground when tires deflate.
  • SM Request to allow aftermarket fuel filters. #26370otheraddedSM fuel pump and filter now permitted as Mazda or OEM equivalent part.
  • 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.
  • SM Request 99-00 replacement Wire harnesses #25602otheraddedSM 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 Organize and Clarify 9.1.7.C.1.o. #25913wordingwordingSM electrical rules reorganized and clarified; alternator now externally regulated only by OEM ECU or master kill switch; harness repair by splicing permitted.
  • SM Strike Tire Tread Language #26123wordingremovedSM tire tread protrusion language removed from GCR 9.1.7.C.5.
  • GT1 GTX Homologation table update #26034otherunclearGTX FIA GT3: Audi R8 now 40 mm restrictor and 2900 lbs; BMW Z4 now 70 mm restrictor and 2800 lbs; Ferrari 488 now 35 mm restrictor, TIR, and 3025 lbs.

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. 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.