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The drilled or grooved rotors will make noise and cause the pads to wear faster. They heat up faster. They reduce the swept area contact under the pads and reduce braking effort for normal driving. They will increase your braking effort if you are repeated heavy on the brakes and the pads are so hot that they are out gassing. At that point you would have gas fade. If you were driving that hard you would want a pad designed for higher temperatures and that pad would then have poor grip until it got heated up. So braking could be quite poor in city traffic where accidents are possible.
If you want to look cool, or do competetive driving, get the drilled or grooved rotors. If you don't drive aggresively and want the best braking effort under normal day to day conditions, get the plain rotors. There are many pads to choose from. Some have better friction coefficients than others.
Most recommendations for breaking in or bedding in the pads are silly and want you to baby them. Many new pads just don't grip and feel spongy. I suggest that you get into a low traffic area and brake again and again until you feel that you have safe braking for real traffic conditions. There is no reason to fear getting them real hot at that time. But always avoid stopping with hot brakes and leaving the pads clamped onto the rotors, try to release and roll a bit at the end of the stop then use as little (or no) pressure to keep the vehicle from rolling. This will prevent material transfer from the pad to the rotor.
I read and posted a link to page where it was suggest that new pads and rotors be worked until the steel rotor started to change color and the pads are obviously stinking. I am still thinking about that one!
posted by 65.68.100...
, Fri, 27 Sep 2002 01:24:25
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