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Old 03-07-2003, 04:51 PM   #16
SkylineUSA
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So, you read the whole post? I guess looks count for a lot, at least your some what better informed.


True. Crossdrilled rotors were developed for racing in the 50s when brakes pads sucked. They would off-gas at relatively low temperatures. The holes gave the gas somewhere to go. If not, it would get trapped between the rotor/pad and the pad would not make contact with the rotor. That is called "fade". Modern brake pads do not do this. True, if you take a street pad to the race track and exceed it's operating temperature, you can get it to fade. But I challenge you to get a Hawk Blue, or Porterfield R4 brake pad or other dedicated racing pad to fade. Ever. Simply, crossdrilled rotors fix a problem that no longer exists.


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Why? Because, when you drill holes in your rotors, they are designed to dissipate heat (not to rid of brake dust as most people think).
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Surface area dissipates heat. The amount of surface you create from drilling holes is almost insignificant compared to the initial surface area of a standard OE vented. In additionx-drilled rotors will reach higher peak temperature because you are removing metal from the rotor. The metal is what absorbs the heat. Plus, you are reducing pad/surface interface. Tell me again why this is a good idea?


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I ask any local non-believers to take a ride in my car, I would be happy to allow them to drive it just so they can tell you about the brakes
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I do not doubt your car stop well. Obviously, if you replace busted/worn out OE parts with new x-drilled parts, of course it's going to stop better. What I do doubt is that it stops better than regular new OE-style non-drilled/slotted rotors. I *garuntee* it does not.

Don't believe me? Will you believe an engineer that designs automotive braking systems?
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