The drilled rotors on this C5 Z06 had nearly 100,000 miles on them and having survived two pad changes worth of wear and prior turnings were now down well below the min 30.60 mm (1.205 inches) thickness on the front. Time for new rotors along with fresh pads.
For daily street / performance driving, we went with a set of Stop Tech Cryo treated rotors and Akebono pads. The rotors are cross drilled and each hole is counter sunk to reduce risk of cracking at the holes. The rotors are pre-conditioned over a 24 hour period by cooling them to -300F and then warming them to normal temperature and then heating them to +300F and then cooling them again. This process permanently changes the structure of the metal improving durability including abrasion resistance, and improves dimensional stability and resistance to warping.
Cryo treatments are increasingly finding their way into many race applications and commonly used on cranks, rods, heads ,valve springs, gears and rotors. If you track your car or are looking for additional performance and longevity from your brakes, ask us about pricing and availability of cryo treated rotors during your next pad and rotor service. A variety of standard, slotted, cross drilled versions are available from several leading suppliers.