BoP Lab / Laguna Seca
T1 vs SM vs F5 vs EP pace at Laguna Seca
Quickest here: T1 1:34.983 Ross Murray, Super Tour Jul 2019 qualifying · SM 1:46.110 Tristan Littlehale, Super Tour Jul 2019 race · EP 1:38.804 Glen McCready, Super Tour Jul 2019 race
| Event | T1 | SM | F5 | EP | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Qual best | Race best | Trap | Qual best | Race best | Trap | vs T1 | % of T1 | Qual best | Race best | Trap | vs T1 | % of T1 | Qual best | Race best | Trap | vs T1 | % of T1 | |||
| Super Tour Jul 2019 ST19JUL262019-07-26 | 1:34.983Ross Murray · fastest of 5 · top 5 within 10.0s | 1:36.724Ross Murray · fastest of 5 · top 5 within 8.6s | 118.4Ross Murray | 1:46.159Tristan Littlehale · fastest of 11 · top 5 within 1.9s | 1:46.110Tristan Littlehale · fastest of 11 · top 5 within 1.2s | 87.0Justin Casey | +9.386squal +11.176s | 109.7%qual 111.8% | 1:39.764Glen McCready · fastest of 5 · top 5 within 9.4s | 1:38.804Glen McCready · fastest of 6 · top 5 within 7.7s | 102.3Aaron Downey | +2.080squal +4.781s | 102.2%qual 105.0% | |||||||
24 earlier rule changes on record, in force before Super Tour Jul 2019 (from 2019)5 cars added · 4 weight · 2 aero · 2 suspension & brakes · 1 engine · 1 induction · 7 wording · 2 other · T1 Cadillac CTS/CTS-V, Chevrolet Camaro, Pontiac Firebird and GTO intake restrictor increases from 67 mm to 70 mm. · T2-T4 touring tires must be DOT certified with minimum U speed rating; TCS line size is maximum unless noted. · EP Mazda RX-8 firewall may be modified for 13B engine fitment and must be sealed. · Ford Mustang with 3.5 EcoBoost engine added to T1: 3496 cc displacement, 3300 lb minimum weight, 31 mm restrictor. · T1 Corvette C5 body allowed C7 carbon aero parts, adds fifty pounds. · T1 Audi TTRS must conform to July 24th, 2015 revision 7 GTS rules, not December 14th, 2011 revision 3. · T1 minimum ride height set to 3.5 inches, measured at rocker panel without driver. · T1 Porsche 928 S4/GTS-R minimum weight drops from 3500 to 3200 lbs; 60mm flat plate restrictor removed. · EP, FP, HP: clarified that tapered holes in ball joints can be reamed for bolt conversion, and wheel bearings and hubs unrestricted on all axles. · EP open cars may now use aftermarket hardtops if OEM-appearance and non-carbon-fiber; specific model allowances removed as redundant. · Porsche 928 S4/928 GTS-R added to T1 at 5400cc, 3500 lbs minimum, 60mm restrictor. · EP Mazda RX-7 12A and 13B (79-85) lose up to 75 lbs; 13B (86-91) loses up to 79 lbs across three weight classes. · SM fuel pump and filter now permitted as Mazda or OEM equivalent part. · T1-LP Ford Mustang GT 5.0L 2018- classified at 3400 lbs with 65mm restrictor, T2 and T3 Mustangs limited to 2015-2017. · 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. · T1-LP Mustang GT350(R) spec line replaced with complete dimensions, gearing, brakes, weight 3650 lbs curb, carbon wheels standard. · Ford Mustang FP350S (2017) classified in T1-LP with 3600 lbs minimum weight, 18×11 wheels, 315 tires, 6-speed gears. · T1 suspension rules clarified: spherical bearings, solid or spherical bushings, and alternate control arms now permitted. · T1 Porsche 996 and 996 GT3 Cup lose 150–200 lbs to 3000; 997 loses 50 lbs to 3100. · Porsche 997 T1 Maximum gains PDK transmission option; GT3 Cup engine remains not allowed. · T1 Acura NSX Turbo World Challenge weight rises to 3100 lbs, restrictor shrinks to 44mm. · T1–T4 spec car classifications clarified with permitted parts, rule conformance versions, and exclusions of other touring modifications.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 T1" is the class's best as a share of T1'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 T1'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.