Installation Start buy undoing the brake hose be sure to pinch it off with Vise Grips to keep from letting all the fuid from running out into your work area remove the rotor and then remove the old caliper bracket using a 19mm socket and rachet and remove the backing plate the area I'm pointing to must be smoothed and leveled using a grinder or heavy file. This is to make a surface for the adapter to bolt to and drill out the old holes to 12mm (17/32) as the old threads are no longer used This is a comparison of the two setups the stock on the bottom and the Vette on top the rotors are 88 and the calipers and brakets are 84 to 87
This is how the finished spindle should look after drilling and leveling out and a little cleaning install the cut hub and new rotor then bolt the adaptor to the brake bracket as seen above using 12mmX1.75 cap screws with the adapter and bracket together slip the pieces over the rotor in the fashion displayed in the above 3 pic and the rotate it into the bolting position
partn 3
[This message has been edited by bubbajoexxx (edited 03-19-2004).]
Bubba, that is awesome! A + for you, more if I could.
Two questions: The 'vette rotors: do they come with the same bolt pattern as the Fiero, or do those need to be drilled? I see that they seem to have an extra set of 5 holes in the rotor.
Other than cutting off the Fiero rotor itself, does it need to be machined like other brake conversions?
Thanks for taking the time to share this brake upgrade!
and bolt it up with the same 12mmX1.75 cap screws then install the pads as you normaly would Now bleed the front brakes install the wheel and your done note the clearance on the 16" inch wheels DONE
once you cut off the old rotor knock out the studs put on the consentric ring onto the rotor then place it into the vette rotor and drill the new bolt patern between the original holes easy to do
if you update the master use the 72 to 80 Vette master plenty of volume and it is made for 4 wheel disk dont use the s10 you are gaining nothing as it is the same bore as a Fiero and is for drum rear disk front not a good combo
I have a question about the master cylinder years. I found a couple on ebay 72-80 is the older style cast units. Is this the one you are talking about?
Bubbajoexxx, was there a reason you went with the stock Fiero bolt pattern, since you went this far why not stick with the Vett bolt pattern for a wider veriety of rim choices?
Bubbajoexxx, was there a reason you went with the stock Fiero bolt pattern, since you went this far why not stick with the Vett bolt pattern for a wider veriety of rim choices?
There are lots of variety in rims in 5x100..
------------------ "As we live on, we lose a little bit more. Shrouded in falsehoods and lies, we stand frozen to the spot, unable to cry out" - Deep Forest
Take a closer look at the 3 pix showing the installation of the Vette caliper bracket. The ring is there, between the Fiero hub and the Vette rotor. Apparently acts as a "spacer".
if you look close you will see the consentric ring between the rotor and the hub without it you can not center the rotor rim inside diamiter is 15 11/16 " then tapers down to 15 at the face working on the rear just waiting for the caliper brackets to come in it will only require a bracket simmilar to the front to attach the caliper and a bracket bolted to the stut attaching bolts for the mecanical ebrake caliper everthing is linning up great will be easy to do once I get the rest of the parts
bubbajoe - Awesome brake mod. I love it, and hope I can do it when I take care of my engine and get money again. I am very curious, though, about the braking performance. Have you taken it out on the road and put the brake through thier paces? I've read many times here on the forum that the stock Fiero MC isn't strong enough to push bigger rotors effectivly and can cause serious braking problems when you do swaps of this kind. What are your impressions so far?
bubbajoe, once you get the rear brackets working, any thoughts on selling at least the brackets and adapters (rings, relocation blocks, rear brackets) as a kit? I'm sure I could find a place to have the ring and brackets made with what you've already shown us, but I'm too lazy to look.
Thanks for putting out all this great information, I think this is the way I'm going for my brake upgrade.
Jay
'87 Fiero SE V6 5sp '94 Ducati M900 '01 Toyota S-Runner
for those who want to see the corvair hubs installed on the fiero spindles us this link http://www.fortunecity.com/skyscraper/switch/67/id215.htm this will alow you to use large wheel bearings to teplace the tiny ones on the fiero and to use the 5 X 4 3/4 bolt circle
[This message has been edited by bubbajoexxx (edited 03-26-2004).]
Are you planning on selling any of these parts? I have no Idea if I would be able to get them made locally. Could you post a part number for the master cylinder you recommend? Thanks again for the great info.
and here they are here is the simple bracket needed to install the caliper. If you use the 88 to 96 rear caliper it has the Ebrake on it and will save you time and money so you wont have to buy the manual ebrake caliper that I did This is the extra bracket needed if you use the 84 to 87 caliper This bracket is not needed with these calipers this is the 2 brackets used with the 84 to 87 caliper the 88 to 96 dose not require the rear caliper bracket this is all you install for the 88 up caliper
[This message has been edited by bubbajoexxx (edited 04-05-2004).]
this is the hurst airheart caliper Im using for my ebarke as I didnot have the 88 to 96 calipers so I used my 84 to 87 calipers alot more work this way but i will upgrade to the 88 later
[This message has been edited by bubbajoexxx (edited 04-05-2004).]
Thanks Bubbajoexxx, anyway you can post the CADD drawing of that bracket? Hey Roy, I knew we would all get a look at the break set up first , having said that, now I am ready for that sound clip of a carbed N* Bet it sounds sweet. Love to see the look on the first person that spent more than $40.000.00 thinking they bought a sports car off a dealer lot, only to get smoked by Bubbjoesxxx wild looking ride. That would be worth paying money to see.
Thank you bubbajoe for posting the brake up-grade here. I saw it first on your site but found out more info from the questions that were asked here. It was your site that help me put in the 4.5 and so on. Lots of people keep this info to them selfs but you take time to post it twice, here and on your site. Thanks. I
Girlling is an english company that has made disk brakes longer than any other company and because the vette brakes are made in austrailia thats what Gm used on the 84 to 96 vettes till they changed over to PBR
note the clearance on the 16" inch wheels 
