Re: Brake Recommendations Please
 

You could do grandsport calipers which are supposedly stronger.

I thought maybe the C5 Z06 brake kits will fit under stock wheels as well.

Re: Brake Recommendations Please
 

I think you need a spacer for the C5s.. unless you have the A molds.

Re: Brake Recommendations Please
 

Don't think the saw blades give you any option. 5 spokes allow for C5 brakes.

Re: Brake Recommendations Please
 

I doubt there's any reason to do any "upgrade" (your choice of word) for your car if you've got good hydraulics, good rotors and quality pads. Those with what they determine are "upgrades" are likely 90%+ of the time being done for the "bling". They can claim anything that they might like to but very few actually use the brakes. Those that do have a product that's proven it's worth and are serious "upgrades".

I doubt that with the use of the majority of the eBay adapter bracket packages that some buy there's any substantial benefit to what they've accomplished.

The C4 Grand Sport caliper is determined to be stouter in some critical areas from a design aspect but is it required for the majority of the users? Likely not.

If your car is a '91 I believe the "upgrade" to the '92+ pedal ratio could be considered a true "upgrade". If your car is a '92 then you've got the ratio and I believe I'd just relax, buy a pad that's meant for 95% of your driving. If you actually have a need for a performance pad/rotor combination, buy and install when the need arises. Simple as that, different pads/rotors for use on track days or whatever. The "bias spring" is generally accepted as being a desired modification so maybe that deserves some consideration.

Those with A-molds can buy the "bling" spend all they want to do the "show me".

Those that use the brakes have product that performs and there's no "bling" involved.

Re: Brake Recommendations Please
 

I'm a relatively new ZR-1 owner, and recently noticed that the pads only contact the outermost few inches of the rotor. Like, the pads aren't the same width as the rotor face area. Is that normal?

My '91 has new rotors and stock calipers (as far as I know). I looked at the new rotors recently and saw that much of the rotor face nearest the center isn't scuffed, isn't used.

Seemed odd, and made me wonder if I had mismatched parts. I can't think of a reason GM wouldn't use the entire rotor surface. Maybe they were worried about caliper flex?

Re: Brake Recommendations Please
 

ZR-1 (90' and 91') Wilwood Rotors and C4 to C5-Z06 Conversion

ZR-1 (90' and 91') Wilwood Rotors and C4 to C5-Z06 Front Brake Conversion with A-Molds

Specific Brake Parts by Wilwood

The KEY Element is the offset of the Rotor to match the offset of the Caliper Bracket.
This Wilwood Rotor with Z06 Caliper Modification described herein is IDENTICAL on BOTH the 90' ZR-1 and 91' ZR-1.

BLING is Good.....so is LESS BRAKE FADE :D

Also the Bearing Hub does not see near as much heat on a high speed stop when compared to STOCK Single Piece Rotors.

Re: Brake Recommendations Please
 

The fronts are 17 inch wheels in c5 Z06 but rears are 18s i believe my brother said. But rears are smaller so they might fit

Re: Brake Recommendations Please
 

Johnny5 restarted this thread this week and he wants to use his sawblades. So, I don't think he can use these options below, right?

I'm in the same situation. My track tires are mounted on sawblades (but I might change that).

Re: Brake Recommendations Please
 

The C5Z rear brakes have an drum type E Brake. Won't work on the latter C4 like the ZR-1, without some type of adapter, which uses the rear caliper as the EBrake. As WV stated, not much advantage really.

Re: Brake Recommendations Please
 

Item #14 of ZR-1 (90' and 91') Wilwood Rotors and C4 to C5-Z06 Conversion addresses that specifically :cheers: