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Old 09-28-2008   #1
Rob 93ZR-1
 
Join Date: Mar 2008
Location: Houston TX
Posts: 9
Default Where is the c4 - c5 brake upgrade procedure?

I have seen a write up w/ pics, but now I can't find it. I'm not even sure my adapters are bolted up correctly.
Thanks!
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Old 09-28-2008   #2
Jeffvette
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Default Re: Where is the c4 - c5 brake upgrade procedure?

http://www.pnwzr1.com/brake_install.htm
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Old 09-28-2008   #3
Rob 93ZR-1
 
Join Date: Mar 2008
Location: Houston TX
Posts: 9
Default Re: Where is the c4 - c5 brake upgrade procedure?

Thank you, Jeff!
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Old 09-28-2008   #4
Jeffvette
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Default Re: Where is the c4 - c5 brake upgrade procedure?

Rob, if you have any questions, just call.
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Old 10-14-2008   #5
Chris_32212
 
Join Date: Sep 2008
Location: Vancouver
Posts: 224
Default Re: Where is the c4 - c5 brake upgrade procedure?

how much does the C5 brake upgrade really help the cars breaking performance? does anybody sell this in a kit?
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Old 10-14-2008   #6
Jeffvette
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Default Re: Where is the c4 - c5 brake upgrade procedure?

Quote:
Originally Posted by chris_32212 View Post
how much does the C5 brake upgrade really help the cars breaking performance? does anybody sell this in a kit?
For street driving, virtually no difference. Performance driving, the thicker rotor helps with heat and the caliper is sturdier than the C4.

And I can do complete kits.
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Old 10-15-2008   #7
Chris_32212
 
Join Date: Sep 2008
Location: Vancouver
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Default Re: Where is the c4 - c5 brake upgrade procedure?

so you saying that stopping distance doesn't really improve but brake fade would be reduced while auto Xing?

Chris
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Old 10-15-2008   #8
Jeffvette
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Default Re: Where is the c4 - c5 brake upgrade procedure?

Quote:
Originally Posted by chris_32212 View Post
so you saying that stopping distance doesn't really improve but brake fade would be reduced while auto Xing?

Chris

You should not be getting any fade with the stock system in an autox setting.
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Old 10-15-2008   #9
Chris_32212
 
Join Date: Sep 2008
Location: Vancouver
Posts: 224
Default Re: Where is the c4 - c5 brake upgrade procedure?

i have never taken my car to a track of any sort. i plan on it, just haven't had the opportunity. but i have read reports that say the ZR-1 brakes are one of the weak spots of the Z. not that they aren't reliable under normal driving conditions but that after only a few hard braking events from high speeds will cause the brakes not to perform as well.

Chris
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Old 10-15-2008   #10
Jeffvette
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Default Re: Where is the c4 - c5 brake upgrade procedure?

The factory system when in 100% proper operating condition, should be adequate enough to lock up the tires.

Under prolonged usage at a road course, you will notice fade due to lack of air circulation and and also the lack of mass. Keep in mind the ZR-1 is 3,500 lbs. Porche, Ferrari, Lambo all used Brembo 4 pistons at the time the ZR-1 was released. For some reason GM felt obligated to stay with the PBR caliper.

The C5 kit will help at the track, plus the components are cheaper to replace compared to the C4 gear.
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