kris_b said:
cross drilled are great if you do a lot of heavy duty, high temp brake work where heat dissapation is important - i.e. racing
This is completly wrong sorry kris, cross drilled rotors are not for racing and are only recommended for street use, cross drilled rotors are higly prone to cracking under high temperature change i.e. racing
This is why companies such as DBA Australia dont make racing rotors that are cross drilled, their Flag Ship range the DBA 5000 series are slotted only (i know becoz ive just bought a set for my car)
The guys at Race Brakes in Auckland wont sell you cross drilled if your gonna use them for racing because its on their head if your rotor brakes apart at the end of the straight and you meet the wall.
We only run slotted brakes on the Mazda Pro7 I pit crew for,
Cross drilled rotors ARE lighter, this is why top drag cars run them (drag racing you only need to hit the brakes once so you dont get the massive temperature fluctuations involved with ciruit racing)
The best upgrade is slotted brakes, slotted is better than standard because of the de-gassing as well as pads cleaning properties they have
Slotted brakes do make a difference on the road (im speaking from experience, Ive run DBA slotted rotors since i got my car)
F1 Brakes are carbon fibre, lets not mix apples with oranges