2.5 hours Endurance Race - Round 4

2/28 -3/1 (Sat - Sun) Sonoma Raceway

Saturday:

Sunday:

Early Sign up price: $450 (Regular price $600)

The race format, regulations, and pricing remain identical to those of our previous event. You can find more details on our blog at the following link: Rules / Blog
Feel free to let us know if you have any questions by emailing us at info@speedsf.com

Rules:

Tires: Any tires
No minimum driver requirement
Vehicles must comply with SCCA, NASA, Lucky Dog, PCA, WRL, wheel-to-wheel racing rules

Classification:

Three classes: Group A / B /C
Classes will be determined by Saturday's qualifying time. We will classify your car based on our experience and the vehicle's performance at the current race.
Group A - Target lap time: 1:43 - 1:48*
- Example: M3, Corvette, Cayman, etc
Group B - Target lap time: 1'49 - 1'54*
- Example: 350z, S2000, Spec E46, Mustang, Boxster, etc
Group C - Target lap time: 1'55+*
- Example: Miata, E30, IS300, 944, E36 325i/328i, etc
*Actual Classing will be determined by historical data and the build reports supplied by teams after the qualifying session

Pit stops:

1 Minimum pit stop required.
Pit stops will only be performed at the hot pit with a 5-minute required pit time. (In and out of the paddock/hot pit)
Refuel must be performed in the hot pit.
Tire change is allowed after refueling.
A timer will be placed on every vehicle during the pit stop.

Race pace:

We will set a delta lap time after the qualifying session. The delta is -1 sec. If your vehicle goes faster than our pre-set lap time by 1 sec of your class, a penalty (Black flag) will be issued.
The first black flag will be a drive-through warning letting you know you have exceeded the time. The second black flag will be a two- (2) minute hold. The third black flag will be a five- (5) minute hold. The fourth black flag will result in a disqualification for that race, and the vehicle will be removed from competition for the rest of the day.