What is better, slotted or drilled rotors?
Power Stop makes both slotted and cross-drilled rotors but there are distinct advantages to drilled rotors which is why many OEM vehicles (Corvette, Porsche, Ferrari, etc.) come equipped with drilled rotors. Your stock brake rotors can exceed 1000 degrees F where many friction compounds start to break down. The high temperature can also lead to annoying brake pulsation and a shaking steering wheel. Drilled rotors are engineered to keep your brakes cool, so your brake pad has improved pad bite with reduced fade. Drilled rotors can operate up to 200 degrees cooler than slotted rotors to protect against rotor warping. While a slotted rotor does a good job of removing gas and dust generated by the friction pad, it does not cool your brakes. Improvement in brake output from drilled rotors is the subject of SAE paper 2006-01-0691 “The Effect of Rotor Cross Drilling on Brake Performance.” In a nutshell, for street and highway driving, drilled rotors are typically preferred. For track, autocro
