The Chase Bays Adjustable Bias Valve is simply designed to adjust the front to rear brake bias. In most cases you want the front brakes to have more pressure than the rear for a good balance. This product is included within our very popular Brake Line Relocation Kits (with various different fittings attached). Most copycat companies of our Brake Line Relocation use the factory proportioning valve which gives substantially worse pedal feel.
It is constructed of 6061 aluminum with a delrin adjustment knob. It is anodized black with the Chase Bays logo laser etched on both sides. It has 1/8 NPT threads but does include (2) black 1/8NPT to -3AN straight adapters. We now include a Chase Bays Mounting Bracket for easier install.
Pressure adjustments range 100-1000 PSI and provide for a maximum decrease of 57% in line pressure. This adjustment allows you to fine tune the front to rear braking balance by proportionately decreasing the rear (or in some cases the front) brake line pressure. This product in most cases requires custom brake lines.
There isn't a specific setting for all cars, each setup varies. The adjusting knob rotated all the way in will provide a pressure reduction to rear of 57%, this would make the F to R Bias Front: 100% and Rear 28.5%. Rotating the knob out will increase line pressure, up to full pressure which is Front 100% and Rear 50%. If the range of adjustment in the valve is not sufficient to properly balance the vehicle’s bias, changes to other components within the system may be necessary.
If the range of adjustment in the valve is not sufficient to properly balance the vehicle’s bias, changes to other components within the system may be necessary.