BoP Lab / Laguna Seca
T4 vs FB vs AS vs P2 pace at Laguna Seca
Quickest here: T4 1:45.119 Izzy Sanchez, 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 · P2 1:26.231 Chuck Bona, Super Tour Jul 2019 race
| Event | T4 | FB | AS | P2 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Qual best | Race best | Trap | Qual best | Race best | Trap | vs T4 | % of T4 | Qual best | Race best | Trap | vs T4 | % of T4 | Qual best | Race best | Trap | vs T4 | % of T4 | |||
| Super Tour Jul 2019 ST19JUL262019-07-26 | 1:45.119Izzy Sanchez · fastest of 3 · top 3 within 6.6s | 1:45.643Izzy Sanchez · fastest of 3 · top 3 within 3.3s | 92.6Lance Stewart | 1:24.666Jake Latham · only car | 1:25.752Jake Latham · only car | 116.0Jake Latham | -19.891squal -20.453s | 81.2%qual 80.5% | 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 | -4.729squal -4.407s | 95.5%qual 95.8% | 1:26.927Tim Day Jr · fastest of 5 · top 5 within 7.8s | 1:26.231Chuck Bona · fastest of 7 · top 5 within 6.8s | 116.8Tim Day Jr | -19.412squal -18.192s | 81.6%qual 82.7% | ||
22 earlier rule changes on record, in force before Super Tour Jul 2019 (from 2019)5 cars added · 5 engine · 3 suspension & brakes · 2 induction · 2 weight · 5 wording · P2 cars limited to power application on maximum two wheels. · P2 Enterprise minimum weight increased to 1375 lbs.; peak horsepower of sealed ESR engine reduced per CRB specification. · AS Ford Mustang 79-93 non-Cobra drops 100 lbs to 3150; over 313 CID Cobra drops 100 lbs to 3450. · P2 stock and modified engines get smaller restrictors (35.0mm, 34.0mm, 33.0mm) and heavier minimums (1025, 1125, 1185 lbs). · P2 Line A.1 restrictor reduced from 40mm to 38mm. · T4 and T3 Mazda MX-5 hardtop rules clarified: any OEM or aftermarket top permitted if retaining OEM silhouette; specific part numbers listed. · T2, T3, T4 now allow any thermostat serving original equipment intent only. · T3 and T4 Mazda MX-5 Miata eligibility capped at 2016–2018 model years. · AS adds Spec Mustang SMG classification with 107.1 wheelbase, 3.73 gears, 355mm front and 300mm rear brakes. · P2 Spec Line cars now allow 1345cc Hayabusa stock engines at 1050 lb minimum with 30mm restrictor. · P2 Group CN Honda K20A-FD2 55mm intake restrictor implementation delayed from 1 January to 3 March 2019. · P2 Honda K20A-FD2 Group CN must use stock intake manifold, 64mm throttle, 55mm restrictor at 1500 lbs minimum. · T4 Celica GT wheelbase 2600 and 15x7 wheels added; Forte years narrowed; Fiesta ST starts 2014; Fiat 124 years 16-18 added; battery rule clarified. · T1–T4 spec car classifications clarified with permitted parts, rule conformance versions, and exclusions of other touring modifications. · T2–T4 subframe bushings now permitted to be replaced with non-spherical bushings of any material.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 T4" is the class's best as a share of T4'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 T4'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.