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Old 09-23-2013   #1
Dynomite
 
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Default Brakes That Will Stop A Freight Train

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

Specific Brake Parts by Wilwood
see ZR-1 (90' and 91') Wilwood Rotors and C4 to C5-Z06 Conversion

The KEY Element is the offset of the Rotor to match the offset of the Caliper Bracket.

1. Rotors.
Wilwood SRP Drilled Performance rotors 12.8 inch diameter and 1.25 inch width with 12x7.06 Rotor Bolt Circle (160-7744-BK RH and 160-7745-LH).


2. Hats.
Two Wilwood Big Brake short offset (offset 1/4 inch) hats with 5x7.45 Wheel Stud Circle and 12x7.06 Rotor Bolt Circle (#170-7746) will fit the Wilwood SRP Drilled Performance Rotors.


3. Brake Pads.
Four (4) 15Q-8012K PolymatrixQ pads for a C5-Z06 (Wilwood is souce).

4. C5-Z06 Calipers and Brackets.

C5-Z06 Calipers Ebay
C5-Z06 Caliper Brackets Ebay

5. Bracket Bolt Kits.
#14121 (Caliper Guide Pin) and Brake Hardware Kit (spacers and seals) #H5634Q at O'Reilly Auto Parts.

6. Adapters.
(Corvette C4 to C5-Z06 conversion brackets, late spindle) C4 to C5-Z06 Conversion Adapters (Ebay)

7. SS Brake Lines.
C5 SS Brake Lines (Ebay)

8. Adapter Washer Spacer.
One Washers (about 1/16 inch thickness are used on each of two adapter bolts) between the Adapter and
Wheel Assembly. This setup centered the calipers on the rotors having 1/4 inch offset.

9. Wheel Dimensions that will fit on this brake Set-Up.

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

Last edited by Dynomite; 10-07-2013 at 12:29 PM.
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Old 09-23-2013   #2
Franke
 
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Default Re: Brakes That Will Stop A Freight Train

Dyno, Very nice setup. Watch out for the guy behind you with standard brakes.
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Old 09-23-2013   #3
XfireZ51
 
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Default Re: Brakes That Will Stop A Freight Train

Nice rotors. Wonder if they make any for C6Z disks w stock offset? Those C6 disks are HEAVY!
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Old 09-23-2013   #4
Kevin
 
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Default Re: Brakes That Will Stop A Freight Train

Quote:
Originally Posted by XfireZ51 View Post
Nice rotors. Wonder if they make any for C6Z disks w stock offset? Those C6 disks are HEAVY!
ron and I picked up the c6 z disks and were shocked by how heavy they were
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Old 09-23-2013   #5
ZZZZZR1
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Default Re: Brakes That Will Stop A Freight Train

OMG. Love it Cliff!

How much for C6 Z06?

Where did you get those, they are gorgeous!!!!



David
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Old 09-23-2013   #6
XfireZ51
 
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Default Re: Brakes That Will Stop A Freight Train

Quote:
Originally Posted by Kevin View Post
ron and I picked up the c6 z disks and were shocked by how heavy they were
Pretty massive. No way those babies are warping. Don't forget, they're 14" across.
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Old 09-24-2013   #7
mike100
 
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Default Re: Brakes That Will Stop A Freight Train

It has been so long since I changed over...What are your impressions from J55 to C5 brakes?

and those are some trick a55 rotors you got there. I thought my black anodized EBC slotted units were pimp.
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Old 09-24-2013   #8
Dynomite
 
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Default Re: Brakes That Will Stop A Freight Train

Quote:
Originally Posted by mike100 View Post
It has been so long since I changed over...What are your impressions from J55 to C5 brakes?

and those are some trick a55 rotors you got there. I thought my black anodized EBC slotted units were pimp.
I have this same Wilwood SRP Drilled Performance Rotor brake set up on my 91' and I can tell you there is no fade.

Also the Bearing Hub does not see near as much heat on a high speed stop.

The trick with the Wilwoods is the Hat. As you can see there is limited transfer of heat possible from the Rotor to the Hat. That keeps the Hub cooler than a solid mass Rotor/Hub. So the front end Hub Bearings do not see near as much heat when I stop in my relatively short 1/4 mile runouts from 120 mph



I will let you know when I get these installed on my 90' how pimp they are after a few 1/4 miles high speed stops

Last edited by Dynomite; 09-24-2013 at 05:37 AM.
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Old 09-24-2013   #9
rkreigh
 
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Default Re: Brakes That Will Stop A Freight Train

love the wilwood stuff. I have the 6 piston superlight calipers and 14" rotors on the c5. stops so hard it will make your eyes pop out and tough flap horizontal

I like the Baer alcon on the LSV, but they are 4 piston calipers, and the 13" rotors are toast. worn so much the grooves are GONE

I worried about it until I called Baer, the rotors are so thick that shaving that much in wear off either side is no issue. I was above the min recommended thickness even with all the wear

however, they will need to be replaced soon. looking hard at this rotors. very nice stuff! I want the silver plating though.
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Old 09-24-2013   #10
batchman
 
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Default Re: Brakes That Will Stop A Freight Train

I lust for hat rotors in j55 size but I can't find a recipe. Your brake porn is a natural progression from there...

Congrats, nice setup.
- Jeff
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