ZR-1 Net Registry Forums - I need new rotors for '91 ZR-1

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JThomas

02-13-2017 09:30 PM

I need new rotors for '91 ZR-1

Looking to purchase new rotors for my '91 ZR-1. OEM standard rotors are fine or a set of slotted and drilled rotors. Correct size is 13" front and rear in diameter, Heavy duty? Not interested in upgrading to larger brakes or modifications.

Looking for suggestions in brands, thanks.

32valvesftw

02-13-2017 10:28 PM

Re: I need new rotors for '91 ZR-1

Try rockauto.com, I have their powerstop brakes on the Wifes Tahoe, they have been very good, nice feel, little fade and low dust. Our cars use the J55 brakes.

Z51JEFF

02-14-2017 08:30 AM

Re: I need new rotors for '91 ZR-1

Bought a set of drilled rotors from Summit a few years ago for $300 a set.

XfireZ51

02-14-2017 09:38 AM

Re: I need new rotors for '91 ZR-1

Quote:

Originally Posted by JThomas (Post 257448)

Joe,

I don't believe the rear rotors are 13". Believe they're 12s.

Hib Halverson

02-14-2017 05:50 PM

Re: I need new rotors for '91 ZR-1

I have a set of rotors for any C4 with J55 brakes. They are StopTech rotors and are gray coated. The friction surfaces are grooved, but not drilled which is the best way to go for performance use.

At one time I had them on Barney my '95 for product evaluation. These rotors are used but with plenty of thickness left.

I'll sell the set for $100 plus the shipping.

If you are interested, PM me and I'll mic each of them and give you the dimension.

JThomas

02-14-2017 09:48 PM

Re: I need new rotors for '91 ZR-1

Quote:

Originally Posted by XfireZ51 (Post 257460)

Joe,

I don't believe the rear rotors are 13". Believe they're 12s.

That's what has me confused. I thought the rotors were the same size on the ZR-1, 13" in diameter, all the way around, heavy duty. Now I'm going to have to go to the spec sheets!

XfireZ51

02-14-2017 11:07 PM

Re: I need new rotors for '91 ZR-1

Quote:

Originally Posted by JThomas (Post 257500)

That's what has me confused. I thought the rotors were the same size on the ZR-1, 13" in diameter, all the way around, heavy duty. Now I'm going to have to go to the spec sheets!

I replaced th stock ones last year when I did the Z06 brake upgrade. The Z06 is a 4 piston/13" rotor in the rear. Stock is a 12" rear rotor.

bdw18_123

02-15-2017 10:18 AM

Re: I need new rotors for '91 ZR-1

I replaced the rotors on the ZR-1 I used to have, I can confirm the rears are definitely 12 inch. Only the fronts are 13 inch.

JThomas

02-15-2017 10:38 AM

Re: I need new rotors for '91 ZR-1

Quote:

Originally Posted by 32valvesftw (Post 257451)

Try rockauto.com, I have their powerstop brakes on the Wifes Tahoe, they have been very good, nice feel, little fade and low dust. Our cars use the J55 brakes.

Thanks

JThomas

02-15-2017 10:38 AM

Re: I need new rotors for '91 ZR-1

Quote:

Originally Posted by Z51JEFF (Post 257457)

Bought a set of drilled rotors from Summit a few years ago for $300 a set.

Thanks

JThomas

02-15-2017 10:39 AM

Re: I need new rotors for '91 ZR-1

Quote:

Originally Posted by bdw18_123 (Post 257519)

I replaced the rotors on the ZR-1 I used to have, I can confirm the rears are definitely 12 inch. Only the fronts are 13 inch.

Much appreciated.

cvette98pacecar

02-15-2017 10:33 PM

Re: I need new rotors for '91 ZR-1

Joe. Auto parts plus usually runs Bear 2 piece rotors for just about $400 a set.

JThomas

02-21-2017 02:32 PM

Re: I need new rotors for '91 ZR-1

Quote:

Originally Posted by Hib Halverson (Post 257493)

Thanks Hib, I've been away from the forum for a few, but I'm all set.

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