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Wilwood Brake Pad Guide

Once the brake system has been tested and determined safe to operate the vehicle, follow these steps for the bedding of all new pad materials and rotors. These procedures should only be performed on a race track or other safe location where you can safely and legally obtain speeds up to 65 MPH while also being able to decelerate rapidly.


THE PROCESS. 
• Begin with a series of light decelerations to gradually build heat in the brakes. Use an on-and-off the pedal technique by applying the brakes for 3-5 seconds, and then allow them to fully release for a period roughly twice as long as the deceleration cycle. If you use a 5 count during the deceleration interval, use a 10 count during the release to allow the heat to sink into the pads and rotors.
• After several cycles of light stops to begin warming the brakes, proceed with a series of medium to firm deceleration stops to continue raising the temperature level in the brakes
• Finish the bedding cycle with a series of 8-10 hard decelerations from 55-65 MPH down to 25 MPH while allowing a proportionate release and heat-sinking interval between each stop. The pads should now be providing a positive and consistent response.
• If any amount of brake fade is observed during the bed-in cycle, immediately begin the cool-down cycle
• Drive at a moderate cruising speed, with the least amount of brake contact possible, until most of the heat dissipates from the brakes. Avoid sitting stopped with the brake pedal depressed to hold the car in place during this time. Park the vehicle and allow the brakes to cool to ambient air temperature.
*If your race car is equipped with brake cooling ducts, blocking them will allow the pads and rotors to warm up quicker and speed up the bedding process.

POST BEDDING INSPECTION.
After the bedding cycle, the rotors should exhibit a uniformly burnished finish across the entire contact face. Any surface irregularities that appear as smearing or splotching on the rotor faces can be an indication that the brakes were brought up to temperature too quickly during the bedding cycle. If the smear doesn’t blend away after the next run-in cycle, or if chatter under braking results, sanding or resurfacing the rotors will be required to restore a uniform surface for pad contact.


TRACK DAY WARM-UP.
Always make every effort to get heat into the brakes before each event. Use an on-and-off the pedal practice to warm the brakes during the trip to the staging zone, during parade laps before the flag drops, and every other opportunity in an effort to build heat in the pads and rotors. This will help to ensure the best consistency, performance, and durability from your brakes. *Never allow the contact surfaces of the pads or rotors to be contaminated with brake fluid. Always use a catch bottle with a hose to prevent fluid spill during all brake bleeding procedures.


WARNING: Do not use high-temperature race pads for low to medium-temperature driving on the street. In addition to undesirable driving qualities, it can cause damage and premature wear to the pads and rotors.

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