Flow Control Valve The TB&C flow control valve is designed to reduce shock load to the driveline by allowing the clutch to slip slightly during engagement. Shock load is a result of an abrupt clutch engagement when the crankshaft and input shaft speeds are not precisely matched. The flow control valve is designed to reduce the chance of losing traction when downshifting (road racing, entering pit lane) and/or reduce the chance of damaging driveline components (broken axles, transmissions, etc). This valve can also be used in drag racing applications to reduce shock load to a driveline when launching. The valve works by restricting the return flow of the hydraulic fluid by a tunable amount. Fluid flow is not restricted during clutch disengagement. Therefore, shift times are still quick and pedal feel is not altered. The valve will have an effect on quick clutch actuations only. It will not alter fine clutch modulation (small pedal movements). TB&C flow control valves include three orifice sizes (.021”, .028” & .040”) that enable clutch engagement to be tuned. The valve features AN3 fittings for use with most TB&C master cylinders and -3 hydraulic lines.

Part No:	Description:	More Information	Installation Drawings	Installation Instructions
90-5000	Flow control valve