stainless rotors ?

[Vanity Plate Bob]

What is the availability of stainless rotors?
Are they only available for certain brands, years etc?

Are they worth the price for street driving?
Being, kinda, in charge of several non Corvette cars, vans seems everytime they get close to the garage they need brakes, rotors or both.

 

[Vanity Plate Bob]

anyone?

 

[Hib Halverson]

There is no such thing as "stainless" rotors.

All Corvette brake rotors, be they OE or aftermarket, are made of cast iron.

 

[Vanity Plate Bob]

thanks

 

[IH2LOSE]

If your looking for rotors that wont "discolor" or "rust" there are different ones available. Some are of a two peice design with a painted center section. What year car ar you working on?

 

[Vanity Plate Bob]

Was misinformed on the ss rotors. Just looking for a more mileage set without a great increase in cost. 88 Olds, 94 Olds, 94 Pontiac, 98 Cavalier
How about drilled or slotted?
Thanks

 

[JohnZ]

"Slotted" rotors have some minor advantage under extreme (road-racing) conditions, but are just cosmetics for normal driving. "Cross-drilled" rotors have their own problems - unless the holes are cast-in and then drilled and chamfered at the surfaces (as "real" cross-drilled rotors are), they are prone to cracks under thermal cycling, which leads to catastrophic failure. Most "hot-rod" cross-drilled rotors are simply stock rotors that have been drilled, which creates stress risers at every hole; they may look good at the cruise-ins, but I wouldn't use them. "Real" cross-drilled rotors (Porsche, Ferrari, etc.) are $600-$1,100 each, and they're cast iron.

 

[Vanity Plate Bob]

Thanks for the brake lesson. Guess just have to get used to new brakes all the time. Can't believe the old drum brakes were that bad and the disc are that good. Rear enders then and still have them.

 

[MaineShark]

...unless the holes are cast-in and then drilled and chamfered at the surfaces (as "real" cross-drilled rotors are), they are prone to cracks under thermal cycling, which leads to catastrophic failure. Most "hot-rod" cross-drilled rotors are simply stock rotors that have been drilled, which creates stress risers at every hole...

Just a minor detail: an aftermarket supplier could drill stock rotors without issues, if they used proper heat treatment procedures, to eliminate the stresses caused by the drilling. I'm not aware if any do this...

Joe

 

[JohnZ]

Just a minor detail: an aftermarket supplier could drill stock rotors without issues, if they used proper heat treatment procedures, to eliminate the stresses caused by the drilling. I'm not aware if any do this...

Joe

Yes, they could, but I doubt if many do. Depending on the raw casting supplier, the shape/curvature/cross-section of the cooling passages varies, and the drilled holes may or may not be properly located centered on the cooling passages, drilled through the rib section instead, etc., and annealing costs time and money, and the surfaces must be finish-machined after annealing. Even the "real" cross-drilled rotors can fail due to stress risers at the holes, and road-racers replace them regularly as a preventive maintenance item whether they show distress or not.

 

[MaineShark]

Yeah, I have doubts, as well.

Just didn't want to leave it at "no," since it's possible that someone might go to the trouble...

Joe

 

[Vanity Plate Bob]

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