ZR-1 Net Registry Forums - Brake Recommendations Please

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Re: Brake Recommendations Please

Quote:

Originally Posted by Dynomite (Post 231540)

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

Thank you.

If I'm understanding it correctly:

The Wilwood rotors/C5-Z06 brakes will work with sawblades if a 1/4" wheel spacer is used (to prevent the sawblade spokes from hitting the caliper).

Re: Brake Recommendations Please

Quote:

Originally Posted by RussMcB (Post 231543)

Thank you.

If I'm understanding it correctly:

The Wilwood rotors/C5-Z06 brakes will work with sawblades if a 1/4" wheel spacer is used (to prevent the sawblade spokes from hitting the caliper).

That is what I am suggesting but the caveat is the loss of limited wheel stud length if you spaced the wheel out further as mentioned in Item #14 of the link.

Re: Brake Recommendations Please

I break every two hours!

I have Brembo Indy four piston calipers!

😎

Re: Brake Recommendations Please

Quote:

Originally Posted by Dynomite (Post 231544)

That is what I am suggesting but the caveat is the loss of limited wheel stud length if you spaced the wheel out further as mentioned in Item #14 of the link.

Yes, I agree. That is a very valid concern.

Any comments about my post #45 above? Is that a topic that has been discussed here before?

Re: Brake Recommendations Please

Quote:

Originally Posted by RussMcB (Post 231547)

Yes, I agree. That is a very valid concern.

Any comments about my post #45 above? Is that a topic that has been discussed here before?

The contact width on a J55 rotor should be something near 44mm.

Re: Brake Recommendations Please

Quote:

Originally Posted by RussMcB (Post 231547)

Yes, I agree. That is a very valid concern.

Any comments about my post #45 above? Is that a topic that has been discussed here before?

Quote:

Originally Posted by WVZR-1 (Post 231549)

The contact width on a J55 rotor should be something near 44mm.

Yep..............I get 1-7/8 inch or about 47 mm on the Wilwood Rotors.....
The outer edge of the pad is exactly at the outer edge of the rotor on the wildwood and maybe the pad is in about 1/16 inch inside the outer edge of the rotor on the stock brake set up.

This is Wilwood on a 1991 which is identical (by observation a few minutes ago) to stock brakes on a 1990.

http://i287.photobucket.com/albums/l...23a3816524.jpg

Re: Brake Recommendations Please

That is music. 6 Piston calipers with 342 mm (13 1/2 Inch) 2-piece rotors. The maximum possible size for 17" Corvette rims.

Re: Brake Recommendations Please

I just reached the end of my Carbotech AX6 pads, time for a freshening. With all the concern about caliper flex I was pretty surprised to run through a full set of pads and see very little pad taper. I suppose I will have to measure.

But I know my rotors are a problem both from being really heavy and beyond recommended thickness limits (had a bad re-surface and had to re-surface again). So I went with Baer Eradispeed rotors (hat style) all around. I am somewhat disappointed in the limited weight savings (2.5lbs/side) but then again since I use them heavily I did not go for the usual cross-drill, only slotted, since the holes will accumulate spider cracks after repeated hard use. Actually had to call Baer directly to get them slotted-only.

Note my car is now a trailer queen, so it's only event miles from here out.

Oh, and for Russ, I'll have to try and take some measurements of the swept area for the CT412 pad. It's a little hectic here as my wife and I try to prep for SCCA Solo Nationals next week. Afraid I'm not taking the Beast this time, got offered a co-drive in a CPrepared Fox body. Silly fun, those cars (good youtube search fodder there). Kind of like the ZR-1 on a 1st gear course power-wise, but all the time. The steering on the other hand, well in those cars that big tiller you hold is just for picking a compass point.

Cheers,
- Jeff

Re: Brake Recommendations Please

Jeff, good luck at the Nationals. I'll bet that's going to be a big, fun event. Can you tell us the car number, class, etc., so we can look for you in the results during the event?

Re: Brake Recommendations Please

Russ, I'll confess I've barely been able to walk past the Beast, no new info on the brakes. Of course these last two weeks are when work chooses to flare up in a big way.

This event is gigantic and getting more daunting by the hour. And my wife's Focus ST has these Recaros that are truly outstanding - for exactly one minute. I am not looking forward to 1600 miles, to race for 6 minutes, then drive 1600 miles home... While she stands a good chance at a title in GSL I know I'm just there to fill the field and shake the Nationals Noob syndrome. If I hit mid-pack I'll be tickled, truly wild class this is.

The fun can be followed at

Live Results- http://sololive.scca.com/
Live Video Streaming- http://www.ustream.tv/channel/SCCASolo

I'm in CP #150, running Thursday/Friday 2nd heat. That means probably around 10 or 10:30 Thursday, an hour earlier Friday. Here's a link to a pic from the Wilmington Ohio National Tour (he appears to not allow direct links):

https://picasaweb.google.com/1165117...63995910282418

Thanks for the kind thoughts!

Cheers,
- Jeff
CPrepared Cannon Fodder!