jus2shy wrote:
SLE wrote:
Well, I know a slotted cross drilled rotor is going to dissipate heat better than one that is not. Therefor they will stop better under most circumstances with heaving braking such as we do with our trucks towing RVs and so forth. When I can do this at a cost equal to or cheaper than OEM, it certainly appears to provide a very good reason to change! Just some food for thought.
Be careful with those cross-drilled rotors. They like to develop very fine cracks around the holes and sometimes slots (although much less likely to occur on slots). Especially if you're rough or hard on the brakes (lots of temperature differentials). I personally prefer solid surface as you don't give many edges for cracks to form NICO Forum. The slotted ones I can live with as well as the new J-hook styles. But the ones fully drilled-through, I don't think I'd ever buy a set of those rotors after personally seeing the stress cracks as shown on this forum on vehicles that aren't even tracked at all.
True, and drilled and/or slotted rotors are not to dissipate heat. They are to allow the gasses to disburse during high heat stops. Used primarily in racing or on the street where the "look" is desired.