Quote:
|
Originally Posted by cappykd
Many will say "cross drilled rotors cool better". Hmmm. If you really look at it, how much air do you think can blow through those little holes? Add the fact that they are spinning at a reasonably high speed and the cooling argument becomes even less believable. In fact, the holes could, in theory, disrupt the natural draw of air from the center of the rotor to the outside edge. That is the flow that actually cools the rotors.
|
The purpose of cross-drilled rotors is not for air to blow through them, it's to serve as a heat sink with the increased exposed surface area.
Also, there's is some debate as to the durability of cross-drilled rotors; some say rotors cracking in them are a result of poor manufacturing. Whether that's true or not I'm not sure, but I think slotted rotors are safer in general.