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Originally Posted by ledzeppelin240
THE ROTORS ARE NOT WARPED, ITS THICKNESS VARIATION. This has got to be the most misunderstood automotive problem. A floating caliper assembly will cancel out that but the thickness variation it will not. A solid rotor will be the best, cross-drilled and slotted are mostly for looks in my opinion. The more mass you have the better the heat can be dissipated.
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WOOHOOO someone else knows what they are talking about!!!
A word on slotted/etc. For the most part yes, high quality blanks(Brembo blanks will really do it for just about everything a street car will see) are the best for braking with street pads most contact area. On pads with no gas output(anything suitable for street use) slots/holes are useless.
Drill holes all these really do is increase a rotors tendency to crack, until you get into really high grade materials(See also Porsche brakes) then it's a different story.
Slotted are really the best of both worlds, still get maximized contact area, you can slap on a set of track pads and they will work great because the gasses are getting vented, and best of all they look pretty behind big useless rims
I personally use and love Powerslots and Hawk HPS pads on my daily driven auto-X car and for the occasional lapping days I just swap on teh HP+ good times are had by all.
If you want to know alot more about brakes go to the Brembo website and read the FAQ wait till you get to the part about warped rotors woo would have thought the pads were depositing uneven?