84-87 12" Corvette Brake Swap... (Page 8/28)
rmphoto JAN 28, 02:13 PM

quote
Originally posted by HellYes:

The print of the rear adapters is not complete. No overall length is given. Little confused, as the dimensions shown are not symetrical. I can't just assume that 3.5625 is the centerline and double it. I'm talking to a job shop about having a set of adapters made. If the price and quality are there, I'll post contact info here, and throw them some business.


the top extension line of 3.5625 indicates the center of the circle, if that wasnt half the overall length, there would be a second dimension. theres really no need for the other drilled holes to be a symetrical mesurement from the top and bottom.

foxgapfiero FEB 06, 07:51 AM
bump to the top
IIFAST4U FEB 06, 08:18 AM
So why doall this instead of buying an Upgraded set for the fiero?

Like these for the front at least?? (top right) front rotor and caliper upgrade?

Thanks

Shawn

http://www.secureleadercom.com/fsstore/default.asp?bodystyle=1&topdeptnumber=44&searchBit=3&dept=379

dguy FEB 06, 12:26 PM

quote
Originally posted by IIFAST4U:

So why doall this instead of buying an Upgraded set for the fiero?

Like these for the front at least?? (top right) front rotor and caliper upgrade?



For one, once the 'vette modification has been completed it may be easier to locate replacement parts locally given the relative popularity of Corvette vs. Fiero.

Another, is stopping power. There's a big difference between stock-diameter rotors with a slightly larger piston (The Fiero Store's set you mentioned), and an upgrade where everything is larger.

[This message has been edited by dguy (edited 10-16-2006).]

86blackgt FEB 07, 02:33 PM
Do you have to use the corvette master cylinder, or can i use the stock master cylinder or a bored out stock master cylinder?

Thanks

crzyone FEB 13, 11:46 PM
For those who have done this upgrade, how do you get the rear studs out? I really don't want to take everything apart to use a press, is it possible to use a hammer? I also don't want to wreck anything hehe...
Jncomutt FEB 14, 07:14 AM
The rear studs could be left stock if you wish. The mounting thickness of the vette rotor isn't all that much more than the fiero rotor. The front studs were designed to only go through the wheel, but are now going through the wheel AND rotor, so they need to be longer. The rears normally go through the disc and the wheel so the difference isn't all that much.

To address the studs however, I've had to swap a broken stud before. I just used a 3lb hammer and gave it a good whack. To install the new stud, I put it through, put a washer on it, and tightened a lug nut onto it, pulling the stud into place. There are probably better methods, but that seemed to work fine.

Steven Snyder FEB 14, 02:21 PM

quote
Originally posted by 1986GTV8:

Got my parts from the 1985 Vette, all calipers & brackets for 171.00

Thanks for the great info.

Just want to keep this near the "top" for otheres.

PS: I found a compnay who will drill the 12" rotors for the 5X100 bolt pattern while being made.
So you will not have 10 holes in your rotor.


What company will do this? I am converting to a different bolt pattern and don't want 15 holes in my rotors (have to add 5x100 along with the larger pattern I want so I can bolt on an adapter flange through the back side)

crzyone FEB 14, 05:09 PM

quote
Originally posted by Jncomutt:

The rear studs could be left stock if you wish. The mounting thickness of the vette rotor isn't all that much more than the fiero rotor. The front studs were designed to only go through the wheel, but are now going through the wheel AND rotor, so they need to be longer. The rears normally go through the disc and the wheel so the difference isn't all that much.

To address the studs however, I've had to swap a broken stud before. I just used a 3lb hammer and gave it a good whack. To install the new stud, I put it through, put a washer on it, and tightened a lug nut onto it, pulling the stud into place. There are probably better methods, but that seemed to work fine.


Thanks for that. I won't bother changing them then. I have one bad stud on the rear so I'll replace it. Thanks.

87GTBro FEB 17, 06:50 PM
Would someone mind posting some pics of the master cylinder setup and the tubing leading to the distribution block? I'm just a little confused because the corvette M/C has a larger hole closer to the booster, than the other. On the stock Fiero M/C, the thicker tube comes from the hole furthest from the booster.

Also, does anybody know the size and thread pitch of the holes in the Fiero distribution block? I'd like to have all the parts available before I start the install.

Thanks!

Daniel