BoP Lab / Buttonwillow Raceway Park

P1 pace at Buttonwillow Raceway Park

Quickest here: P1 1:34.975 Jim Devenport, Cal Club Region Hoosier SCCA Super Tour @ Buttonwillow Raceway Park qualifying

P1solid race · dashed qualifying · slower is lower

	Event	P1
	Event	Qual best	Race best	Trap
	Cal Club Region Hoosier SCCA Super Tour @ Buttonwillow Raceway Park ST20FEB212020-02-21	1:34.975Jim Devenport · fastest of 4 · top 4 within 7.1s-2.683s (-2.75%)	1:36.224Jim Devenport · fastest of 4 · top 4 within 5.9s-2.632s (-2.66%)	148.8Johnnie Crean+15.3 mph (+11.5%)
11 rule changes (P1: 11)2 removed · 1 engine · 8 wording · P1 sealed DP02-spec 2.0L Mazda MZR Elan removal date extended from 1/1/2020 to 1/1/2021. · P1 sealed DP02-spec 2.0 MZR engine removed effective 1/1/2020; competitors may use Spec Line G. · P1 Spec Line F Honda K20A-FD2 reclassified from Restricted 2.0L Group to CN-spec with stock intake manifold and 64mm throttle body. · P1 traction control prohibited in GCR section 9.1.8.C.H. · P1 allows mechanical and solenoid shifters, prohibits electronic controls and pre-selected changes. · P1 bodywork minimum height provision moved to aerodynamic section; 115cm height limit for aero parts added. · P1 clarifies fender louver and brake duct rules, consolidating duplicative provisions in GCR 9.1.8.C. · P1 anti-intrusion panels now allowed anywhere on chassis sides, previously restricted. · P1 bodywork wording corrected: 'a passenger' becomes 'passenger' in three GCR sections. · P1 Engine Table reference cleaned up; no performance change. · P1 Mazda Renesis Rotary removed from Engine Table specification line.showhide 2020-02-01 Extend date for removing sealed DP02-spec 2.0L option #28046wordingwordingP1 sealed DP02-spec 2.0L Mazda MZR Elan removal date extended from 1/1/2020 to 1/1/2021. 2020-01-01 Remove sealed DP02-spec 2.0 MZR spec #26753removedslowerP1 sealed DP02-spec 2.0 MZR engine removed effective 1/1/2020; competitors may use Spec Line G. 2020-01-01 Update Revised Spec Line F #27745engineunclearP1 Spec Line F Honda K20A-FD2 reclassified from Restricted 2.0L Group to CN-spec with stock intake manifold and 64mm throttle body. 2019-08-01 E&O Transmissions #27098wordingunclearP1 traction control prohibited in GCR section 9.1.8.C.H. 2019-07-01 E&O Transmissions #27005wordingwordingP1 allows mechanical and solenoid shifters, prohibits electronic controls and pre-selected changes. 2019-07-01 Move minimum height provision to #27031wordingwordingP1 bodywork minimum height provision moved to aerodynamic section; 115cm height limit for aero parts added. 2019-07-01 Remove duplicative fender louver provision #27033wordingwordingP1 clarifies fender louver and brake duct rules, consolidating duplicative provisions in GCR 9.1.8.C. 2019-05-31 Missing word E&O #26919wordingwordingP1 anti-intrusion panels now allowed anywhere on chassis sides, previously restricted. 2019-05-31 E&O correction to GCR 9.1.8.C.C. #26927wordingwordingP1 bodywork wording corrected: 'a passenger' becomes 'passenger' in three GCR sections. 2019-05-01 Clean up reference to engine table #26648wordingwordingP1 Engine Table reference cleaned up; no performance change. 2019-05-01 Remove redundant spec line #26692removedremovedP1 Mazda Renesis Rotary removed from Engine Table specification line.
	Hoosier SCCA Super Tour (Cal Club Region) ST19APR262019-04-26	1:37.658Jim Devenport · fastest of 3 · top 3 within 8.6s	1:38.856Jim Devenport · fastest of 3 · top 3 within 4.2s	133.5Jeffrey Lederman
6 earlier rule changes on record, in force before Hoosier SCCA Super Tour (Cal Club Region) (from 2019)6 wording · P1 Staudacher and Honda K20A-FD2 engine table language cleaned up; no performance changes. · P1 closed cockpit single-seat cars moved from subsection J.5 to subsection B.4; prohibition unchanged. · P1 engine table reference corrected from 'above' to 'below'; ECU throttle wording clarified for dual sensors and fail-safes. · P1 removes redundant TIR inlet restrictor provisions; SIR and flat plate restrictors remain required. · P1 Honda K20A-FD2 CN-spec clarifies allowed parts to OEM list only, no machining. · P1 engine table wording corrected; head designs removed from listed specifications.showhide 2019-04-01 Clean Up Engine Table Language #26590wordingwordingP1 Staudacher and Honda K20A-FD2 engine table language cleaned up; no performance changes. 2019-03-01 Move single-seat closed cockpit provision to #26376wordingwordingP1 closed cockpit single-seat cars moved from subsection J.5 to subsection B.4; prohibition unchanged. 2019-02-01 Correct errors in GCR section 9.1.8.C.J #26144wordingwordingP1 engine table reference corrected from 'above' to 'below'; ECU throttle wording clarified for dual sensors and fail-safes. 2019-01-01 Remove redundant inlet restrictor provisions #25877wordingwordingP1 removes redundant TIR inlet restrictor provisions; SIR and flat plate restrictors remain required. 2019-01-01 Clarify Honda K20A-FD2 parts requirement #25949wordingwordingP1 Honda K20A-FD2 CN-spec clarifies allowed parts to OEM list only, no machining. 2019-01-01 Correct GCR section 9.1.8.C.J errors #25966wordingwordingP1 engine table wording corrected; head designs removed from listed specifications.

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. 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.