Re: brake dust
ThaAcSwerver said:
I know a few guys with performance rotors and from from what they tell me is that they produce a more then normal amount of brake dust (or rim killer) on the rims due to the holes or slots slicing against the pad thus shortining the overall life of the brake pad itself. But hell, they do look cool though. I opt not to get any because of those reasons and also drive daily in Atlanta's stop and go (or pad/clutch killa) traffic. But everybodys situation is different. But takethis into consideration. -Peace
I'm not so sure about the fact that slots/holes create more brake dust. Brake dust is primarily created by the pads rubbing against the rotor, not the other way around.
In my opinion, the holes in a rotor do much more than dimples in regards to performance braking. What does that mean? This means after braking a few times, and the rotor gets hot enough after an average number of stops, stopping distances, and brake force, that it tends to alleviate the heat from the rotor better than stock OEM. For my own application, the stock rotors were turned before i bought the car. 2 months later, after some regular, yet hard braking, they warped. I traded them for x-drilled/slotted rotors and it's been 6 months under more hard braking and it has yet to warp.
Now, perhaps, I am lucky to have a good set of non-cracking x-drilled/slotted rotors, whereas I've heard the vendors that we all know have switched to the dimpled set.
I asked this same question on the other forum, but without looking at the answer, I would assume that dimple does no better than slots and definitely no better than holes in regards to alleviating heat. It may have not ruined the integrity of the disc, but I don't think it has anything to do with brake dust, that's for sure.