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BoP Lab / Laguna Seca

P1 vs AS vs B-Spec pace at Laguna Seca

Class · click a class to switch, + to compare alongside (up to 4)
vsAS×vsB-Spec×EP+FA+FC+FE2+FF+FP+FV+GT1+GT2+HP+P1×P2+SM+SRF3+STL+STU+T1+T2+T3+T4+Show 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: P1 1:21.626 Jim Devenport, Super Tour Jul 2019 qualifying · AS 1:40.712 Clark Nunes, Super Tour Jul 2019 qualifying · B-Spec 1:52.287 Frank Schwartz, Super Tour Jul 2019 race

EventP1ASB-Spec
Qual bestRace bestTrapQual bestRace bestTrapvs P1% of P1Qual bestRace bestTrapvs P1% of P1
Super Tour Jul 2019 ST19JUL262019-07-261:21.626Jim Devenport · fastest of 6 · top 5 within 5.2s1:21.922Todd Slusher · fastest of 6 · top 5 within 4.1s121.3John Manfroy1:40.712Clark Nunes · fastest of 4 · top 4 within 7.9s1:40.914Clark Nunes · fastest of 4 · top 4 within 8.0s103.0Michael Thompson+18.992squal +19.086s123.2%qual 123.4%1:53.083Joseph Gersch · fastest of 4 · top 4 within 1.6s1:52.287Frank Schwartz · fastest of 4 · top 4 within 2.5s82.0Ali Naimi+30.365squal +31.457s137.1%qual 138.5%
20 earlier rule changes on record, in force before Super Tour Jul 2019 (from 2019)5 cars added · 1 engine · 1 weight · 12 wording · 1 other · B-Spec 2007-10 Mini Cooper adds OBX header part #10-2101-2S as E&O allowance. · P1 permits mechanical, solenoid, and air-shifters; prohibits electronic pre-selection and multi-wheel power. · P1 minimum bodywork height rule moved and restated with new 115cm aerodynamic part height limit. · P1 consolidates fender louver rules into one section; removes duplicate allowance for louvers and clarifies brake and engine air ducts are permitted. · AS Ford Mustang 79-93 non-Cobra drops 100 lbs to 3150; over 313 CID Cobra drops 100 lbs to 3450. · P1 anti-intrusion panels now allowed anywhere on chassis sides instead of specified locations. · P1 bodywork wording clarified: comfort and safety for driver and passenger or driver only. · P1 Engine Table reference cleaned up; no performance change. · P1 Mazda Renesis Rotary engine spec line removed from Engine Table. · P1 Staudacher and Honda K20A-FD2 engine table wording clarified; no performance change. · B-Spec added to GCR 9.3.26 fuel cell exception list; stock fuel tank permitted. · P1 closed cockpit single-seat cars remain prohibited; rule moved from subsection J.5 to B.4. · AS adds Spec Mustang SMG classification with 107.1 wheelbase, 3.73 gears, 355mm front and 300mm rear brakes. · P1 engine table reference corrected from 'above' to 'below'; ETC/FBW/DBW throttle wording clarified on sensor and fail-safe requirements. · 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. · P1 removes TIR inlet restrictor option; deletes requirement for single turbo/supercharger unit with single restrictor. · P1 CN-spec Honda K20A-FD2 clarified: stock OEM parts required, no machining allowed. · P1 engine rules correct grammar and remove head designs from specification table.showhide
  • B-Spec Request to allow OBX Header for 2007-10 Mini Cooper #26977engineadded · engineB-Spec 2007-10 Mini Cooper adds OBX header part #10-2101-2S as E&O allowance.
  • P1 E&O Transmissions #27005otheraddedP1 permits mechanical, solenoid, and air-shifters; prohibits electronic pre-selection and multi-wheel power.
  • P1 Move minimum height provision to #27031wordingwordingP1 minimum bodywork height rule moved and restated with new 115cm aerodynamic part height limit.
  • P1 Remove duplicative fender louver provision #27033wordingwordingP1 consolidates fender louver rules into one section; removes duplicate allowance for louvers and clarifies brake and engine air ducts are permitted.
  • 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.
  • P1 Missing word E&O #26919wordingwordingP1 anti-intrusion panels now allowed anywhere on chassis sides instead of specified locations.
  • P1 E&O correction to GCR 9.1.8.C.C. #26927wordingwordingP1 bodywork wording clarified: comfort and safety for driver and passenger or driver only.
  • P1 Clean up reference to engine table #26648wordingwordingP1 Engine Table reference cleaned up; no performance change.
  • P1 Remove redundant spec line #26692cars addedremoved · cars addedP1 Mazda Renesis Rotary engine spec line removed from Engine Table.
  • P1 Clean Up Engine Table Language #26590wordingwordingP1 Staudacher and Honda K20A-FD2 engine table wording clarified; no performance change.
  • B-Spec Request to add B-Spec to GCR 9.3.26 fuel cell #26132cars addedaddedB-Spec added to GCR 9.3.26 fuel cell exception list; stock fuel tank permitted.
  • P1 Move single-seat closed cockpit provision to #26376wordingwordingP1 closed cockpit single-seat cars remain prohibited; rule moved from subsection J.5 to B.4.
  • 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.
  • P1 Correct errors in GCR section 9.1.8.C.J #26144wordingwordingP1 engine table reference corrected from 'above' to 'below'; ETC/FBW/DBW throttle wording clarified on sensor and fail-safe requirements.
  • B-Spec Request to classify Canadian Nissan Micra Cup cars #25216cars addedaddedB-Spec adds Canadian Nissan Micra Cup Car, 1598 cc, 2450 lbs minimum, with Micra Cup suspension kit allowed.
  • B-Spec Request updated Toyota Yaris Spec Lines #25483cars addedaddedB-Spec Toyota Yaris 12-18 added with 1491cc engine, 3.55 first gear, Bilstein B14 suspension, K&N intake allowed.
  • B-Spec Update wording of exhaust #26022wordingwordingB-Spec exhaust wording clarified: oxygen sensors must stay stock location, primary catalyst unmodifiable.
  • P1 Remove redundant inlet restrictor provisions #25877wordingwordingP1 removes TIR inlet restrictor option; deletes requirement for single turbo/supercharger unit with single restrictor.
  • P1 Clarify Honda K20A-FD2 parts requirement #25949wordingwordingP1 CN-spec Honda K20A-FD2 clarified: stock OEM parts required, no machining allowed.
  • P1 Correct GCR section 9.1.8.C.J errors #25966wordingwordingP1 engine rules correct grammar and remove head designs from specification table.

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 P1" is the class's best as a share of P1'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 P1'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.