Updated: Oct 31, 2022
This is focused at a USRA and UMP B-Mod shock package, but don't for get the Midwest Mods and Wissota mods guys. We are working on some stuff for them boys up north because they can get away with more stuff . (more open on the rules)
5.11 Shocks & Springs:
5.11.1 One (1) shock per wheel is permitted and rear shocks must be mounted within twenty-five (25) degrees of vertical. Only conventional type (closed on one end) single shaft shocks are permitted. Rear end dampener shocks are not allowed. Rear shocks may be mounted on a weight-jack-type adjustable bolt.
5.11.2 Shock shaft must be able to compress all the way into shock body. Shocks must have a minimum of seven (7) inches of travel. Shock shaft must move in both directions from its installed position at ride height. Shock cannot preload the spring.
5.11.3 Shock covers are permitted but may cover only front half of shock and must be mounted directly to shock. Bump stops (internal or external) are not allowed. Shock rubber stoppers are not allowed.
5.11.4 Steel shock mounting bolts only. Aluminum and/or titanium is not allowed.
5.11.5 Bladder-type and/or Schrader valves are not allowed. Coil-over, remote and/or air reservoir shocks are not allowed. Canister and/or adjustable shocks are not allowed. Bulb-type shocks are not allowed. Air shocks are not allowed. Aluminum shocks are not allowed. Inerter shocks, J-damper shocks, active mass damper shocks and/or through-rod-designed shocks are not allowed. Dummy shocks are not allowed. Aluminum shaft guides are permitted.
5.11.6 Shocks shall be subject to claim, as outlined in Claim Procedures (see Article 16).
UMP B-Mod Tri-City and where real B-Mods are raced.
9 – SHOCKS/BUMP STOPS/BUMP SPRINGS:
ANY STEEL SHOCK WILL BE ALLOWED, NO EXTERNAL ADJUSTABLE, BULB-TYPE or SCHRADER VALVE SHOCKS will be Allowed NO BUMP STOPS, BUMP SPRINGS or SPRING RUBBERS of ANY KIND ALLOWED at ANYTIME! $100 CLAIM ON ANY SHOCK AT ANYTIME!
15 Series: https://www.bsbgofast.com/15-sereis-info
20 Series: https://www.bsbgofast.com/20-sereis-info
20 Series: Same
RF 5030@100 PSI (old school)
LF 3050@125 PSI
RF1-75/130@100 PSI (Med turn)
RFGF-300/130@100 PSI (High turn)
How we do our shock program is like this, when you call
we go over your car setup and driving style to determine
what your car needs the most. We are based on the knowledge that the car must turn on the front tires instead of the rear tires, so the car must have rebound in the front along with tire load.