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Best Brake upgrade for 86 IROC-Z w/ 16" rims?

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Old Apr 23, 2006 | 10:28 AM
  #1  
My1986IROC-Z's Avatar
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From: Eastern Georgia
Car: 1986 Iroc-Z
Engine: 305 TPI (used to be Carb)
Transmission: 700R4
Best Brake upgrade for 86 IROC-Z w/ 16" rims?

I was out yesterday in my wifes 01 vette and had to nail the brakes because an A-Hole in front of me. Obviously the car stops on a dime. I began to think about my 86 IROC-Z with 4 wheel disc and how crappy it stops. I would have plowed through the person in front of me if I were in my beloved IROC-Z. Who truelly makes a brake package comparable to what my vette has. I am using stock 16" 1986 IROC-Z rims too, keep this in mind. I really don't want to loose my project car because of the brakes. Thanks for all the advice.
Tony
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Old Apr 23, 2006 | 02:13 PM
  #2  
I-rocin's Avatar
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From: petaluma/two rocks, california
Car: 87 iroc-z28
Engine: vortec tpi 350
Transmission: built 700r4
contact ebmiller, or do a search for him, he sells brake upgrades, people say good things about them too
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Old Apr 23, 2006 | 04:01 PM
  #3  
ebmiller88's Avatar
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From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
My 13" HDs will fit those wheels, I run them on my car. They look a lot like this:

https://www.thirdgen.org/forums/brak...kes-today.html

Ed
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Old Apr 23, 2006 | 04:18 PM
  #4  
My1986IROC-Z's Avatar
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Posts: 220
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From: Eastern Georgia
Car: 1986 Iroc-Z
Engine: 305 TPI (used to be Carb)
Transmission: 700R4
Ed, Do you use those on all four corners? What about the proportioning valve and master cylinder, do you use the stock one or would I upgrade to something better? Please fill me in on the details and a cost estimate please. You can PM me if you would like or post up. Thanks
Tony
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Old May 1, 2006 | 04:26 PM
  #5  
ebmiller88's Avatar
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Joined: Mar 2001
Posts: 6,420
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From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
Sorry for the delay...I usually recommend a set of "1LE/LT1" rear discs to compliment the front setups "we" do on the boards. This will essentially give you full 1LE brakes at all 4 corners with a slight change in rotor size, usually an increase. The reason I say this is that the C4/C5/C6 calipers use practically the same size caliper piston so the pressures are the same. I recommend a stock drum master, the same as 1LE cars use, and the 1LE spec prop valve, or an adjustable one if you feel the need to go that far.

I sent you a PM also.

Ed
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