BoP Lab / Laguna Seca
B-Spec vs STL vs FB vs AS pace at Laguna Seca
Quickest here: B-Spec 1:52.287 Frank Schwartz, Super Tour Jul 2019 race · STL 1:42.330 Tim Auger, Super Tour Jul 2019 race · FB 1:24.666 Jake Latham, Super Tour Jul 2019 qualifying · AS 1:40.712 Clark Nunes, Super Tour Jul 2019 qualifying
| Event | B-Spec | STL | FB | AS | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Qual best | Race best | Trap | Qual best | Race best | Trap | vs B-Spec | % of B-Spec | Qual best | Race best | Trap | vs B-Spec | % of B-Spec | Qual best | Race best | Trap | vs B-Spec | % of B-Spec | |||
| Super Tour Jul 2019 ST19JUL262019-07-26 | 1:53.083Joseph Gersch · fastest of 4 · top 4 within 1.6s | 1:52.287Frank Schwartz · fastest of 4 · top 4 within 2.5s | 82.0Ali Naimi | 1:42.773Tim Auger · fastest of 7 · top 5 within 4.9s | 1:42.330Tim Auger · fastest of 6 · top 5 within 4.5s | 95.7Thomas Lepper | -9.957squal -10.310s | 91.1%qual 90.9% | 1:24.666Jake Latham · only car | 1:25.752Jake Latham · only car | 116.0Jake Latham | -26.535squal -28.417s | 76.4%qual 74.9% | 1:40.712Clark Nunes · fastest of 4 · top 4 within 7.9s | 1:40.914Clark Nunes · fastest of 4 · top 4 within 8.0s | 103.0Michael Thompson | -11.373squal -12.371s | 89.9%qual 89.1% | ||
17 earlier rule changes on record, in force before Super Tour Jul 2019 (from 2019)6 cars added · 4 engine · 2 weight · 3 wording · 2 other · B-Spec 2007-10 Mini Cooper adds OBX header part #10-2101-2S as E&O allowance. · STU allows alternate intake manifolds on case-by-case basis; stock throttle device and manifold otherwise required. · AS Ford Mustang 79-93 non-Cobra drops 100 lbs to 3150; over 313 CID Cobra drops 100 lbs to 3450. · STL Acura/Honda B18 except C engine restrictor increased from 53mm to 54mm flat plate. · STL and STU ride height measurement clarified: lowest rocker panel point without driver, excluding pinch weld. · B-Spec added to GCR 9.3.26 fuel cell exception list; stock fuel tank permitted. · STL adds VW 1.8L R4 20VT 1781 cc, 1781 minimum weight, naturally aspirated only. · STL Mazda Renesis minimum weight reduced to 2700 lbs. · STL Mazda MX-5 Cup brake pad compound now open. · STL adds Acura/Honda B18C1 GSR with 1797cc displacement, 54mm flat plate restrictor required, porting outside 1" allowance prohibited. · STL Mazda 12 and 13B now permit port matching; porting ban removed. · AS adds Spec Mustang SMG classification with 107.1 wheelbase, 3.73 gears, 355mm front and 300mm rear brakes. · B-Spec adds Canadian Nissan Micra Cup Car, 1598 cc, 2450 lbs minimum, with Micra Cup suspension kit allowed. · B-Spec Toyota Yaris 12-18 added with 1491cc engine, 3.55 first gear, Bilstein B14 suspension, K&N intake allowed. · B-Spec exhaust wording clarified: oxygen sensors must stay stock location, primary catalyst unmodifiable. · STL B17 now requires 54mm flat plate restrictor; B18C Type R variants move to 54mm restrictor, weight chart baseline. · STL Mazda Miata removes maximum displacement limit; minimum weight corrected to unspecified figure.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 B-Spec" is the class's best as a share of B-Spec'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 B-Spec'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.