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BoP Lab / Buttonwillow Raceway Park

F5 + F500 at Buttonwillow Raceway Park

Track maps: sectors and speed trap

Track map with timing sectors and speed trap
Shown for: Cal Club 2022 (practice, qualifying, race)
Class · click a class to switch, + to compare alongside
Events
PosCarDriverClass#LapTheoreticalQualRace5-lap stintConsistencyTrapS1S2S3
119Jeff JorgensonF5691:51.129 J-R11:52.268 J-Q11:51.129 J-R11:52.820 J-R2+0.815 J-R241.225 J-R134.103 J-R1
296Lance Spiering 2+ carsF5281:56.503 J-R21:56.935 J-Q21:56.503 J-R21:57.596 J-R2+2.243 J-R242.705 J-R236.562 J-R1
3KBS MK VIILance Spiering 2+ carsF500291:58.561 E-R2sector data unreliable2:03.309 E-Q11:58.561 E-R22:00.962 E-R2+3.233 E-R2111.9 E-R238.19436.55837.399

One row per driver and car (a driver who changed cars has a row for each). Each cell is that driver's best in that car across the selected events, with the session it was set in. Best 5-lap stint is the mean of the driver's quickest five consecutive race laps, and consistency is how far their median race lap sat behind their best in that race (small is a driver who does it every lap); both come from the race with the best stint. The fastest in each column is purple, and a car whose best lap is more than 115% of the fastest in its class is greyed (marked ">115%" beside the driver) and left out of the colour scale. Click a column to sort, a row to highlight it. Theoretical lap is the sum of the best sectors, whichever laps they came from, and never slower than the best lap (where a car's fastest laps were recorded without sector times, its best lap is used). The 115% mark is about the car's best lap only: a car whose best lap is within 115% of the fastest in its class is never marked. Greyed sectors with no theoretical lap mean the sector times on file do not add up to a believable lap. Letters refer to the events above; Q is qualifying, R a race.

Sectors

Sectors are numbered in lap order from start/finish, whatever each event's timing called them; the loop names are SCCA timing's.

By car

CarClassDriversLapQualRaceTrapS1S2S3
19F511:51.129Jeff Jorgenson1:52.268Jeff Jorgenson1:51.129Jeff Jorgenson41.225Jeff Jorgenson34.103Jeff Jorgenson
96F511:56.503Lance Spiering1:56.935Lance Spiering1:56.503Lance Spiering42.705Lance Spiering36.562Lance Spiering
KBS MK VIIF50011:58.561Lance Spiering2:03.309Lance Spiering1:58.561Lance Spiering111.9Lance Spiering38.194Lance Spiering36.558Lance Spiering37.399Lance Spiering

The best any driver of each car managed across the selected events, with who set it. Spellings and model years of the same car are grouped; click a row marked ▸ to see each version. Grouping is worked out from the names, so tell us if two cars are wrongly merged or split.

Rule changes between these events

Super Tour Apr 2017 → Cal Club 2022 2017-04-28 to 2022-02-17

F5 Request for Weight Increase for Motorcycle Powered Cars

#27214 from Clint McMahan · Rule change · TB 19-09 (2019-09 Fastrack)

slower · weightF500 Honda CBR600RR, Suzuki GSXR600, and Yamaha R6 minimum weights increase to 900 lbs.
As printed in Fastrack

In the F500 engine table, change the weight as follows:
Honda CBR600RR (03-13): "875 900"
In the F500 engine table, change the weight as follows:
Suzuki GSXR600 (03-13): "875 900"
In the F500 engine table, change the weight as follows:
Yamaha R6 (03-13): "875 900"

F5 Change 600cc restrictor size

#27883 from Formula/Sports Racing Committee · Rule change · TB 20-01 (2020-01 Fastrack)

slower · inductionF500 Honda CBR600RR, Suzuki GSXR600, Yamaha R6 restrictor reduced to 28mm from 29mm.
As printed in Fastrack

In the F500 engine table, change the restrictor as follows:
Honda CBR600RR (03-13): "29 28mm Flat Plate Intake Restrictor"
In the F500 engine table, change the restrictor as follows:
Suzuki GSXR600 (03-13): "29 28mm Flat Plate Intake Restrictor"
In the F500 engine table, change the restrictor as follows:
Yamaha R6 (03-13): "29 28mm Flat Plate Intake Restrictor"
Table 1
Car Engine Wheel
Width (in)
± .060
Aero Transmission Weight Notes
USF2000
Tube
Frame
2.0 Liter
Mazda MZR
See notes See notes See notes See
notes
Car must comply with the 2012
Pro USF2000 rules. Competitors
must have the current rules in their
possession and present them upon
request. The following sections of
the 2012 Pro rules do not apply:
14.1.1 thru 14.1.4; 14.12.2 thru
14.12.13; 14.13.1; 14.13.2; 14.13.5;
14.18 in its entirety; 14.19 in its
entirety; 14.27 in its entirety; 13.34 in
its entirety

F5 Request for Cockpit Adjustment of External Jetting Devices

#28359 from Scott Thorp · Rule change · TB 20-07 (2020-08 Fastrack)

unclearF5 request to adjust external jetting device cockpit control denied; no rule change made.
As printed in Fastrack

Thank you for your letter. After reviewing the response to the WDYT published in the May 2020 Fastrack
Minutes, the Club Racing Board does not recommend this change.

F5 Two Stroke Motors (reply to #28359 WDYT)

#28816 from Jim Murphy · Rule change · TB 20-07 (2020-08 Fastrack)

Thank you for your letter. Please see the response to letter #28359 in this Fastrack.

F5 Re letter requesting driver adjustable carb mixture

#28840 from Jay Novak · Rule change · TB 20-07 (2020-08 Fastrack)

Thank you for your letter. Please see the response to letter #28359 in this Fastrack.

F5 #28359 WDYT Request for Cockpit Adjustment

#28875 from Richard Schmidt · Rule change · TB 20-07 (2020-08 Fastrack)

unclearF5 cockpit adjustment request response published in Fastrack letter 28359.
As printed in Fastrack

Thank you for your letter. Please see the response to letter #28359 in this Fastrack.

F5 Request to Update Suzuki Engine Years for F500

#29453 from Wiley McMahan · Rule change · TB 20-10 (2020-10 Fastrack)

added · engineF500 Suzuki GSXR600 engine years extended from 2003-2013 to 2003-2019.
As printed in Fastrack

In the F500 engine table, update as follows:
"Suzuki GSXR600 (03-13 19)"

F5 Request to Allow Rotax 593 HO Engine

#30712 from Jack Walbran · Rule change · TB 21-06 (2021-06 Fastrack)

addedF500 Rotax 593 HO engine now permitted; 875 lbs minimum weight, MA0242SP1020A or MA0242SP1063A restrictor, specific intake boots and piston required.
As printed in Fastrack

In F500, GCR section 9.1.1.D.14, Snowmobile Derived Engines, add the following:
"Rotax 593 in a carbureted, non-HO or HO version;"
In F500, GCR section 9.1.1.D.14.A, add the following:
"38mm intake boots, BPP 420867860 (last 6 digits 867860 are embossed on the boot), BPP 420867862 (last 6 digits 867862 are
embossed on the boot), or Kimpex 07-100-33, shall be used for the 493 and 593 non-HO engines. 38mm intake boots, BPP
420867882 (last 6 digits 867882 are embossed on the boot) shall be used for the 2003 593 HO engine, and BPP 420867879 (last 6
digits 867879 are embossed on the boot) shall be used for the 2004-2007 593 HO engines."
In F500, GCR section 9.1.1.D.14.I.3, add the following:
"Rotax 593 non-HO (0.010" overbore): Rotax P/N 420889171"
In F500, GCR section 9.1.1.D.14.J.3, add the following:
"Rotax 593 non-HO engine only: Rotax OEM 0.010" overbore piston (P/N 420889171)."
In F500, GCR section 9.1.1.D.14.K, add the following:
"Rotax 593 non-HO engine only:"
In F500 Engine Table, add the following:
F500 Version/Model Weight
(lbs) Inlet Restrictor Outlet Restriction Notes
Rotax
593*
Carbureted HO
version (03-07) 875 MA0242SP1020A
or
MA0242SP1063A
Y-pipe exhaust
manifold and single
expansion chamber (ref
9.1.1.D.14.B)
Note 1 and 4. Restrictor size and
type is to be displayed by the
following designation: 593 RSTR

F5 Clarify allowable assisted shifting systems

#30871 from Formula/Sports Racing Committee · Rule change · TB 21-08 (2021-08 Fastrack)

wordingF5 clarifies mechanical shifting only; throttle-cut and flat-shifter devices permitted if driver retains full control.
As printed in Fastrack

In F5, GCR section 9.1.1.D.6.B.4, make changes as follows:
"All gear changes must be initiated and made completed by the driver. Only mechanical gear shifting mechanisms are permitted.
This may include cables, rods, or other mechanical linkage systems. All other shifting mechanisms are not permitted. This
prohibition shall include electric solenoid shifters, air-shifters, etc. and other devices not mechanically actuated and controlled
completely by the driver. Devices that allow pre-selected gear changes and closed-loop systems that use feedback from sensors
to vary the timing of the gear selection process are also prohibited.
Devices that interact with the throttle, ignition, or fuel system during a shift operation (for example: ignitions cuts, flat shifters,
blippers) are permitted, but no such devices shall remove the driver's control of the gear change initiation, gear selection or
completion. The burden of proving that a device is in compliance with this rule shall be upon the competitor."

F5 Request to correct terminology

#30976 from Jim Murphy · Rule change · TB 21-08 (2021-08 Fastrack)

wordingF5 single-seat open-wheel cars: rigid suspension becomes limited suspension in class definition.
As printed in Fastrack

In F5, GCR section 9.1.1.D.1, change as follows:
"A class for single seat, open wheel, rigid limited suspension race cars using either a snowmobile-derived engine and drive
components or a 600cc motorcycle engine."

F5 Data Box Mounting Plate

#31638 from Glen Thielke · Rule change · TB 22-01 (2022-01 Fastrack)

addedF5 cars must install AIM part #X47KPFSOLO2R0 data box mount for Majors and Runoffs.
As printed in Fastrack

In F5, GCR section 9.1.1.D, add a new section as follows:
"19. All F5 cars competing in Majors Races and the Runoffs must have the AIM part #X47KPFSOLO2R0 data box mount installed
on the vehicle to provide the necessary mounting of the AIM Solo or Solo 2 data box. The mounting surface is to be approximately
oriented either horizontally or vertically either parallel or perpendicular to the longitudinal axis of the car and must be accessible
from the exterior of the car with the driver on board -- it should have a view of the sky and not be located under carbon fiber or
metallic bodywork. Sufficient space should be left between the mounting plate and the surface to which it is attached to permit
the use of zip ties/tie straps to restrain the data box to the mounting plate. The purpose of this requirement is to allow the
random placement of data boxes on cars on pre-grid by SCCA assigned personal and the collection of the box when the car exits
the race track. Contact AIM and their distributors for direct purchase."

What the rules allowed changed as listed; this does not say what any particular car ran.