Wilwood Superlite 6R Big Brake Front Brake Kit (Race) - Manual (Page 5)

Additional Information and Recommendations
•Please read the following concerning balancing the brake bias on 4 wheel disc vehicles.
•OE Style or Single Mount Race Pedal with Tandem Outlet Master Cylinder:
Front to rear caliper piston sizes, rotor diameters, and pad compounds must be initially configured to provide the correct range of
vehicle bias when using a single bore / tandem outlet master cylinder. If excessive rear brake bias is experienced, an inline adjustable
proportioning valve can be used to decrease the rear line pressure to help bring the vehicle into balance. If excessive front brake bias
is experienced, first consideration should be given to increasing the rear brake bias to bring the vehicle into overall balance.
•Race Pedal with Dual Master Cylinders and Balance Bar:
Master cylinders must be sized to match the calipers and allow the pedal balance bar to operate near the center of its travel. If it is not
possible to fine tune the bias within the adjustable range of the balance bar, then consideration must be given to changing a master
cylinder bore size or some other aspect of the brake system to bring the car into balance. Larger bore master cylinders will generate
less pressure while decreasing pedal travel. Smaller bores master cylinders will generate higher line pressures with an increase in
pedal travel.
NOTES:
1. New master cylinders should be bench bled prior to installation.
2. If the master cylinder fluid reservoirs are mounted lower than the calipers, an in-line 2 lb. residual pressure valve may be
necessary to prevent fluid flowback and the subsequent long initial pedal stroke required to actuate the system.
For all types of pedals and master cylinders:
•Test the brake pedal. It should be firm and consistent. If not, first try re-bleeding the system. The pedal should stop at least 1" or more
from the floor under heavy load. Pedal height must be comfortable to the driver.
•If the pedal is initially firm, but then travels to the floor, check the entire system for leaks. This may also be a sign of a faulty master
cylinder.
•If the pedal is constantly spongy, and repeated bleeding does not correct the problem, the master cylinder selection and pedal
geometry may need re-evaluated.
•If you are still experiencing difficulty after all instructions have been followed, consult your chassis shop, the retailer where the kit was
purchased, or the Wilwood Tech Line.
Test Driving the Vehicle:
•Make a series of light stops at low speed to assure proper system operation. Then proceed to the rotor and pad bedding procedure.
New Rotor Bedding:
•Make a series of light, then medium, then gradually harder stops to bring the rotors up to near operating temperature. Then use a few
cool down laps to allow the rotors to cool. Avoid using the brakes during the cool down. This will act as the final stress relief on the
rotors. If possible, allow the rotors to cool completely before competition and subsequent pad bedding. Be cautious to avoid heat
shocking the rotors by heating or cooling them too quickly when they are new. It is also a good practice to warm the brakes prior to
any competition to avoid thermal shock and potential stress fractures.
New Pad Bedding:
•This procedure is similar to the rotor bedding process. Make a series of light, then medium, then gradually harder stops to bring the
pads to full operating temperature. Then use a few cool down laps to allow the pads to cool. Avoid using the brakes during the cool
down. If possible, allow the brakes to cool completely before participating in competition. This process will properly mate the pads
with the rotor surface and act as the final curing step for the friction compound. Following this procedure will assure the best
performance and service life from your brakes.
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