Are drilled rotors worth it?

[durtkillon]

Pelican sells drilled rotors for the stock front calipers. Does anybody have experience with these? Do they improve stopping or cooling at all? Are there downsides to using them?

[Joe Bob]

Heavy track use can cause them to crack....I use slotted rotors with an agressive pad....

[Joe Ricard]

Actually the loss of surface area can reduce braking effiency. they will crack under hard usage. better to slot allowing pad out gassing to escape.

[durtkillon]

Is slotted the same as vented?

[Dave Bell]

What they all said

Buy slotted... its even cheaper

If drilled, the holes should be camfered to help prevent stress cracking.

Slots should probably have a camfer also. Sharp edges lend themselves to streas cracks.

Not sure if Pelican has slotted rotors.

http://www.*****************.com/ has them

Vented rotors are what you get on a 911... or 914-6 front brakes... triple layer... radial air vents sandwiched in between two flat rotor discs.

Vented rotors can be slotted or drilled.

- Dave