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| NEW! 2005-2007
Ford F150 Cross drilled rotors and Truck & Tow pad
kit |
Introducing 2005-2007 Mustang
GT Big Brake upgrade with 3 piston calipers & 13"
Cross Drilled and Slotted Rotors Call for details.
Fronts $899.00
Rears $699.00
Both Front and Rear $1499.00 |
| New
5.7L Hemi 300C, Charger, Magnum, Cross Drilled Rotor
and Ceramic pad Kits! |
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| Call or E-Mail us 888 863 4415 or sales@powerstop.com |
Your stock brake rotors can exceed 1000 degrees F where many friction compounds start to break down. The high temperature can also lead to annoying brake pulsation and a shaking steering wheel. Drilled rotors are engineered to keep you brakes cool, so your brake pad has improved pad bite with reduced fade. Drilled rotors can operate up to 200 degrees cooler than slotted rotors to protect against rotor warping. While a slotted rotor does a good job of removing gas and dust generated by the friction pad, it does not significantly cool your brakes.
Warped rotors and brake fade are caused by heat so the mechanisms of heat transfer are important in the brake design. There are three modes of heat transfer, 1) convection {air flow}, 2) conduction {mass}, and 3) radiation {electro-magnetic waves}. When you apply the brakes you convert the kinetic {moving} energy of the car to heat. A moving vehicle has a lot of energy so it is not uncommon to see temperatures over 1000 degrees F. On the street, about 25% of the heat is removed by conduction, 25% by convection and 50% by radiation. At high speeds, the ratios shift to about 15% conduction, 40% convection, and 45% radiation. Therefore, during high speed stops, convection heat transfer [i.e. how air flows over the rotor] plays a very important role. This is where drilled rotors significantly improve convection heat transfer to lower the brake temperature up to 200 degrees. During panic stops on the highway, this can help stop your car 6 to 20 feet shorter.
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