E46Fanatics - View Single Post - Cross drilled Rotors?
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Old 05-22-2011, 08:07 PM   #60
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Join Date: Feb 2008
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Originally Posted by Andy2108 View Post
Same reason why a big brake kit won't show huge improvements over a properly designed oem system in a single 60-0 test. A bbk will have larger rotors for heat reasons, not surface area.
So you're telling me that one can have one car on bicycle tires and another with idk... 255s all around, and that they'd initially perform very similarly? Experience tells me this is not the case.

Also technically a BBK will generate more brake torque than a smaller diameter brake. If one had a set of tires sufficiently sticky so as to not lock up with stock brakes, then a BBK absolutely will improve 60-0 distances. Torque = F*d*sin(theta) (in this case it'd be just f*d since the force is applied perpendicular to the rotor surface).
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