Carbon Z Performance Cross Drilled & Slotted Brake Rotors
Cross-Drilled & Slotted Brake Rotors offer the best combination of cooling and out-gassing.
The complaint of drilled brake rotors has always been the increased chances of getting thermal cracks and the loss of braking surface area. The complaint with slotted brake rotors has been that there is no temperature reduction!
Now we can offer the best of both styles!
The proper way to drill and slot a rotor is to reduce the number of holes by 1/3 to ½. This is done by removing either every other line of holes or every 3rd line of holes and replacing with a slot. Our engineers, with the aid of fully computerized CNC machines, determine based on the casting connecting vanes, which is best for each application.
In controlled studies using thermal heat guns, it has been found that a maximum drilled rotor may run up to 30% (200 degrees) cooler than a non-drilled rotor. Reducing the holes by 1/2 still reduces operating temperatures significantly, up to 20% cooler than a non-drilled rotor.
With this information, it only makes sense to negate the potential problems of over-drilled rotors while still cooling and maintaining most of the benefits of cross drilling.
Some performance rotor manufacturers that just add a few slots and don’t reduce the number of holes just aren’t getting it!
Carbon Z Drilled & Slotted Rotors with the standard gray ZRC coating
Carbon Z Drilled & Slotted Rotors with the optional bright silver plating
For more details on Carbon Z Brake Rotors, refer to the following sections of the Carbon Z Performance Brake Rotors page:
| 
