E46Fanatics - View Single Post - Is this brake combination a good one?
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Old 09-11-2012, 09:39 AM   #6
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Join Date: Mar 2011
Location: New England
Posts: 368
My Ride: 2002 330CI
Originally Posted by WDE46 View Post
Slotted rotors for street use are not necessary. The purpose of the slots is to allow gas to be expelled from under the pad, thus keeping the pad in contact with the rotor. Modern street pads don't produce much gas, if any, and the missing contact area of the slots outweighs the benefits of gas removal. You shouldn't ever be getting the brakes hot enough on the street to generate gas anway.
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.
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