Juhatee

I've had C6 Z51 rear brake discs in my car (C5) but they were very hot on track when compared to front rotors. I had pad wearing issues with them too.

I noticed those rotors take ventilation air from the wheel side and not the drive shaft side as Z06 and base model do. I have Z06 air scoops with ducts pointing on the inside of the disc, the opposite side of where ventilation sucks the air from.

I try to get around that problem by using Z06 rotors but I had to machine those rotor's diameter 8 mm smaller for them to fit with my calipers. These rotors were not that hot and my brake pads lasted longer. However this leaded to another problem: Both discs cracked on the very first track day. This might be due to machining those smaller and outer holes being too close to the edge.



Now I would like to choose an easy way out. Is there a slotted (not drilled) Z51-sized rear brake rotor (with e-brake drum) designed so that it pulls air from the drive shaft side just as other C6 models do.

rocsvette

Get a set of centric slotted rotors from Rock Auto Parts. Price good and you'll be done with the drilled silliness. On my Z the slotted rotors outlasted the drilled (in front) 3 to 1.

troyguitar

I don't know if they make regular centric discs for c6 z51.

I have dba t3 4000 series rotors on my car with c6 z51 brakes. They work well but are not cheap.

Juhatee

I emailed yesterday to Centric tech support about part nr 12662096SL but haven't got a reply. I'd like to know whether that rotor ventilates oem way or the 'usual' way.