Hot Rod Forum banner

Drilled/slotted rotors on front only?

13K views 5 replies 5 participants last post by  MouseFink  
#1 ·
I'm thinking that it will be fine but figured I would ask first. It seems like I put new rotors on my car and not long after I do I end up with the front vibrating when I brake. And I always use a torque wrench when tightening my wheels. The guy at the parts store offered me a premium rotor at $100.00 per rotor! He said they would last longer, that there is a lot more webbing in them than the standard rotor. I am curious if the drilled and slotted rotors last longer than the standard rotor? And if I can run them on the front only?
 
#4 ·
I have had NAPA slotted and drilled rotors and Bendix ceramic pads on the front of my 1991 S10 Blazer 4x4 for about 2 years and aluminum drum brakes on the rear. I feel the front brakes through my foot and I think the run-out is .008" -.010" . I have not had any braking advantage using slotted and drilled rotors when driving in normal stop and go traffic. The slotted and drilled rotors are designed to vent plasma between the pads and rotors in a high speed stop or during road racing. A street driven vehicle does not need those type rotors.

When I replace the Bendix ceramic pads, I will replace them with Raybestos ceramic pads and Raybestos standard rotors and toss the vented and slotted rotors.
 
#5 ·
Many years ago in my motorcycling days I had a Suzuki GS1000. I drilled the front rotors on the advice of a friend of mine. After laying out the pattern, center punching, drilling, and counter sinking I was through. The operation made the prolonged braking much better, but I cannot tell you if the pads lasted any longer because I sold the bike several years later.

Vince
 
#6 ·
Raybestos has new rotors that have asymmetrical wavey slots and no holes. (?) Those type rotors must be worth something to some people because the brake parts manufacturers keep making them.

Next time, I will use the Raybestos standard rotors mainly because they are powder coated black in areas where they always rust.