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BoP Lab / Laguna Seca

P2 vs FB vs AS vs EP pace at Laguna Seca

Class · click a class to switch, + to compare alongside (up to 4: remove one to add another)
vsAS×B-SpecvsEP×EPxF5FAvsFB×FCFE2FFFMFPFVGT1GT2GT3GTLHPP1P2×SMSRF3STLSTUT1T2T3T4
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: P2 1:26.231 Chuck Bona, 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 · EP 1:38.804 Glen McCready, Super Tour Jul 2019 race

EventP2FBASEP
Qual bestRace bestTrapQual bestRace bestTrapvs P2% of P2Qual bestRace bestTrapvs P2% of P2Qual bestRace bestTrapvs P2% of P2
Super Tour Jul 2019 ST19JUL262019-07-261:26.927Tim Day Jr · fastest of 5 · top 5 within 7.8s1:26.231Chuck Bona · fastest of 7 · top 5 within 6.8s116.8Tim Day Jr1:24.666Jake Latham · only car1:25.752Jake Latham · only car116.0Jake Latham-0.479squal -2.261s99.4%qual 97.4%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+14.683squal +13.785s117.0%qual 115.9%1:39.764Glen McCready · fastest of 5 · top 5 within 9.4s1:38.804Glen McCready · fastest of 6 · top 5 within 7.7s102.3Aaron Downey+12.573squal +12.837s114.6%qual 114.8%
13 earlier rule changes on record, in force before Super Tour Jul 2019 (from 2019)4 weight · 3 engine · 2 induction · 1 aero · 1 cars added · 1 tyres & wheels · 1 wording · AS Ford Mustang 79-93 non-Cobra drops 100 lbs to 3150; over 313 CID Cobra drops 100 lbs to 3450. · EP Mazda RX-8 firewall may be modified for 13B engine fitment and must be sealed. · 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. · 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. · AS adds Spec Mustang SMG classification with 107.1 wheelbase, 3.73 gears, 355mm front and 300mm rear brakes.showhide
  • P2 E&O Transmissions #27006tyres & wheels
  • P2 Request to restrict all cars #26246weight
  • 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.
  • EP Allow Firewall Modification for Fitment of 13B into RX8 #26726engineadded · engineEP Mazda RX-8 firewall may be modified for 13B engine fitment and must be sealed.
  • EP Rollcenter Correction Clarification #25873wordingaddedEP, 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 Hardtops #26476aeroadded · aeroEP open cars may now use aftermarket hardtops if OEM-appearance and non-carbon-fiber; specific model allowances removed as redundant.
  • EP Request for Competition Adjustment for 2nd Generation RX7 #25935weight -50 lbsfaster · weightEP 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.
  • P2 Change Engine Table Lines B.1 & B.5 #25777engine
  • P2 Change Line A.1 restrictor size #26429induction
  • 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.
  • P2 Request to Allow 1345cc Hayabusa Engines for Spec Line P2 Cars #25595engine
  • P2 Change CN inlet restrictor implementation date #25816induction
  • P2 Clarify Honda K20A-FD2 parts requirement #25950weight

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 P2" is the class's best as a share of P2'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 P2'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.