McLeod Racing
McLeod Racing has a rich history as a leader in the performance automotive aftermarket clutch and driveline products. McLeod is a leading global supplier of clutch kits, clutch components, hydraulic bearings, flywheels, bellhousings and other performance driveline products. McLeod Racing is proud to have been providing cutting edge products, and industry leading service to the world’s foremost performance automotive, light truck and racing enthusiasts since 1971. In 2008, Professional NHRA Driver and entrepreneur Paul Lee acquired McLeod Racing, inspiring change to expand into new markets and widen the product line beyond its traditional applications while maintaining McLeod Racing’s high standards for excellence. McLeod Racing has a rich tradition of producing the very highest quality and most innovative clutches on the market. Offering cost effective products, backed with world-class service, McLeod Racing products range from performance street replacement clutches to race ready units capable of handling 3000 hp. So whether you have a daily driver or a full race machine, McLeod has you covered.
Brakes » Brake Proportioning & Pressure Valves
Brake Proportioning Valves & Pressure Valves
What is a proportioning valve?
A proportioning valve is a pressure reduction device used to adjust and tune brake bias. It is typically installed in-line in the rear brake line to reduce rear braking efficiency and compensate for premature rear-wheel lock-up; a result of incorrect front to rear brake bias. An adjustable proportioning valve permits incremental adjustments to fine tune brake bias. This ability to adjust front-rear brake bias is particularly important in race applications, as changing track conditions and vehicle dynamics usually require the brake bias be adjusted throughout the race.
What is brake bias?
Brake bias is the percentage of total braking force applied to the front wheels. It can also be called brake balance. A 60-70% bias is common on RWD street vehicles, applying 60-70% of the total braking force to the front brakes. Front wheel drive cars can have up to 80% brake bias.