Speedway Disc/Drum Brake Residual/Prop Valves with Fittings

Ever had problems with a spongy pedal or slow, unresponsive brakes? If so, you may need a residual pressure valve installed in your brake line. A residual valve acts like a one-way or check valve to maintain brake system pressure to eliminate the problems of a spongy pedal. This  residual valve is installed inline between the master cylinder and disc brake calipers or drum brake wheel cylinder to keep residual pressure at the brakes after the brake pedal is released. This ensures that you will have a high, firm pedal next time you press the brake pedal.

If your master cylinder is located below the floorboard, installing a 2 PSI residual valve is highly recommended. If your master cylinder is mounted on the firewall, a residual valve is generally not needed because gravity will provide a natural residual pressure within the brake line.

Our residual pressure valve features a distinctive purple anodized finish with 1/8" NPT port at each end. Use 2 PSI residual valves for disc brake applications and 10 PSI for drum brake applications. 

Our included Adjusable Brake Proportioning Valve allows easy adjustment of front-to-rear brake bias. Universal design works on all race cars. Has a 100 to 1500 psi range with up to 57 percent pressure reduction.

Kit includes

• (1) Disc Brake Residual Valve, 2 PSI
• (1) Drum Brake Residual Valve, 10 PSI
• (1) Adjustable Brake Proportioning Valve
• (4) Straight 3/8"-24 IFF to 1/8 Inch NPT Male Adapter

Proportioning Valve Instructions (PDF)

Brake System Builder's Tip (JPG)