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Rotor Prices ???
Race Director
Joined: Apr 2000
Posts: 15,344
Likes: 4,009
From: Texas
Next, where are they made? The cheaper ones tend to be foreign made and have fewer cooling vanes.
I use Raybestos rotors from RockAuto...~$45 each, stock OEM vane count, made in the US or Canada, and they're true (sometimes the cheap ones are warped right out of the box). I use these on road courses and go thru a set just about every other weekend during track season
Drifting
Joined: Nov 1999
Posts: 1,502
Likes: 12
From: Yorktown Heights NY
I agree.
Otherwise you can check out the "Brute Force" rotors that are slotted and drilled...I have them on my C5 and they also make them for the C4....very reasonable from Rockauto....I get tons of parts from them....I think thre rotors are manufactured by Raybestos.
Good Luck
Otherwise you can check out the "Brute Force" rotors that are slotted and drilled...I have them on my C5 and they also make them for the C4....very reasonable from Rockauto....I get tons of parts from them....I think thre rotors are manufactured by Raybestos.
Good Luck
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Verdad Gallardo
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
A common problem with the cheap ones is "core shift".
This means the core mold that creates the gap between rotor sides and between vanes moves relative to the outer mold. So, you get a casting where the sides aren't the same thickness all the way around.
Then when it heats up, it expands unevenly (and dissipates heat unevenly), and the rotor will warp. It's a crap shoot on the cheap rotors. There is zero quality control.
This means the core mold that creates the gap between rotor sides and between vanes moves relative to the outer mold. So, you get a casting where the sides aren't the same thickness all the way around.
Then when it heats up, it expands unevenly (and dissipates heat unevenly), and the rotor will warp. It's a crap shoot on the cheap rotors. There is zero quality control.
