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Old 09-11-2012, 01:12 PM   #7
WDE46
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Join Date: Sep 2012
Location: Virgo Supercluster
Posts: 8,003
My Ride: 2004 330Ci OBM
Quote:
Originally Posted by PrecisionX View Post
I drive very spirited daily, that's even an understatement. The car will be tracked as well and as far as I knew the slots are not only for gasses but to expel debris and water as well.
That sounds fairly reasonable except I don't think I've ever had a problem with debris in any of my car's brakes. Water may make some sense except on warm brakes water vaporizes instantly and in the rain it gets slung off via centripetal force (most of it). That's not to say rotors aren't affected by rain, because I have definitely noticed it on my cars. In fact Cadillac used to (and may still) implement a system that would move the brake pads to within a few thousnadths of an inch of the rotor in the rain to sweep the water off. I feel like the slots would trap more water if anything, but thats just a guess.
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