Quote:
Originally Posted by AP Racing - Chris_B
Let's be careful here! Residual pressure valves (RPV's) can be a disastrous solution is misapplied even just a little bit. Floating rotors and stiffer bearings definitely will help.
The ultimate solution is to use calipers engineered properly such that the anti-knockback springs and/or pressure seals themselves do the job. And, the result of pad knockback is a pedal that needs to be pumped up after a hard corner, not additional heat. Knockback, while a royal pain and totally intolerable, would not contribute to the ceramic insert issue at all.
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Not disagreeing, but on a bang for buck equation, $100 fix versus a few $k's solution, residual pressure valves present a compelling offer.
Yes, they can induce drag (and the extra heat problems that goes with that), but frequently on a track the drag induced can be made up during the braking zone by the extra confidence the driver regains in their brake pedal.