I was under the impression you wanted the c5/c6 caliper?? Mounting the 13" rotors using the stock 88 calipers is simple, all that is needed is a bracket and a spacer for the bridge of the caliper to make it accept the wider rotor.
I was under the impression you wanted the c5/c6 caliper?? Mounting the 13" rotors using the stock 88 calipers is simple, all that is needed is a bracket and a spacer for the bridge of the caliper to make it accept the wider rotor.
C5/C6 calipers swap is very difficult and alot of mods must be made to use them properly ... I did buy those calipers when I had my Widow ... now I have an 88 Formula.
Well now I know what you guys are after I will have to figure out a few things. The 13" rotors he was using that work with the fiero calipers is going to be the fun mystery to solve. Might be too much to ask of guru to share that. Off to ebay and Brakemotive I go.
2004 subaru sti front rotors 12.84" or 98 Cobra Mustang Front 13" rotor used a PBR 38x38mm calipers and 99+ Cobra Mustang Fronts 13" rotor used a PBR 40x40mm calipers
I'd be leaning toward the cobra side ... with 13' a bit of trimming needs to be done to the 88 caliper for it to sit properly ... not a big modification..
[This message has been edited by Danyel (edited 11-12-2015).]
I personally want vette calipers, or at least better calipers, over the 88. The stock ones are garbage when you are putting down more power and especially for track days
Those kits definitely look amazing. I need to order a set, I only wish I would have been looking around sooner. I definitely need the front C5 kit. Have you started making the rear C4 kit for an 87 yet? And as DKcustoms stated, I would like a better grade of caliper than an 88 Fiero caliper. I cannot yet drive my car, but I do want to upgrade as I go, and I'm sure that the C5 brakes are a huge improvement over stock.
Do you still have any rear bracket kits ready? I bought everything a while back that I need to make an install video except rims/tires. I just pulled the parts out to get ready for the video and realized that I do not have the bracket kit for the rear.
------------------ 87 Fiero GT 3.4 Pushrod with 7730 ECM & DIS 88 MERA #8013 85 Fiero SE with 3.1 pushrod 86 Fiero SE 2.8 stock www.youtube.com/LostNotForgotton
I have a few of these available, I also have two sets of custom lightweight aluminum hubs that would pair perfectly with this swap. Normally the hubs run $400 but sale price the rest of the month is $325, with the brackets $450 shipped in the US.
I designed and machined these brackets for the front of 84-87 fieros. They mount C5 corvette 13" rotors and calipers on the front. The brackets are one piece machined from 7075 Aluminum and powder coated black. I will include the required grade 10.9 M14x2 caliper mounting bolts and grade 8 7/16" bracket bolts and nuts. I will also include the required centering ring turned from 6061 Aluminum.
These are the parts I used to complete the install. All were purchaced from rockauto.com The rotors are slotted and drilled and come with pads, the calipers are rebuilt and include the caliper mount.
Power stop rotor and pad kit, K1559-26 A-1 cardone caliper 18-B4702 A-1 cardone caliper 18-B4703 Dorman Banjo bolt 13912 2 needed
Price for 2 brackets, 4 caliper mounting bolts, 4 bracket mounting bolts and two centering rings $150 shipped For an extra $150 I can provide new front hubs with the correct 2" long wheel studs installed. I use new fiero front rotors, Brake-Best brand. I turn off the rotor portion, turn the face of the hub back to compensate for the vette rotor thickenss and install Dorman 2" long wheel studs.
Its just a matter of time before all 84-87 owners need to convert over to new calipers and rotors. My only hesitation with sluppys kit is that the caliper mounting brackets are aluminum not steel. Strength??? Beyond that everything looks great save for modification of the knuckle for mounting. If I understand it correctly we would need your kit plus rotors drilled to the Fiero bolt pattern and C4 Calipers all around. I estimate that we are looking at about a $1000-$1200 investment when all is said and done. Also assume that the Fiero master cylinder must be changed to accommodate the extra capacity of the Corvette dual piston calipers. Looks like things are on the right track but not quite there as yet.
------------------ " THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite. "THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "
Its just a matter of time before all 84-87 owners need to convert over to new calipers and rotors. My only hesitation with sluppys kit is that the caliper mounting brackets are aluminum not steel. Strength??? Beyond that everything looks great save for modification of the knuckle for mounting. If I understand it correctly we would need your kit plus rotors drilled to the Fiero bolt pattern and C4 Calipers all around. I estimate that we are looking at about a $1000-$1200 investment when all is said and done. Also assume that the Fiero master cylinder must be changed to accommodate the extra capacity of the Corvette dual piston calipers. Looks like things are on the right track but not quite there as yet.
How are things "not quite there yet"?? This swap has been done many times and you pointed out all the things that need changed to support the swap. And yes it's an expensive swap, you get what you pay for...
As far as the adapters being AL. They are plenty strong and engineered to handle the loads present. Material is 7075 aluminum, if you are not familiar with it's properties look it up. Same material aircraft landing gear are made of.
I’ve already done the C4 rotors with ‘88 calipers front and rear on my ‘85 GT, is a different master cylinder required when going to the C5 front calipers?
Sluppy123, I’m looking at the big picture. I think it is best to abandon the idea of using my ‘88 Fiero rotors/calipers and fitting those onto my ‘85 SE Fiero. That being understood, do you still offer a Corvette big- brake upgrade? If so, please let me know👍 Cordially, kevin
Are these still available for 1987 Fiero's? If I did the math correctly it looks like it would be $300 shipped for both the front and rear brackets plus a extra $140 for the re-built front hubs for the C5 Corvette rotors. Is that correct? I must say that based on the photo's posted that they look pretty amazing installed.
Given that the kit for using Corvette calipers on a Fiero was designed to fit correctly; I do not understand how proper braking action can be had without changing to a larger master cylinder that can accommodate the the extra volume/capacity and piston size of the Corvette calipers. Am I wrong about this and if so why?
------------------ " THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite. "THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "
Wanted to bump this thread as I just received my order. Everything looks great!
- Front C5 Corvette caliper adapters for use with C5 13" rotors (for 84-87 Fiero) - Rear caliper adapters to move 88 Fiero Caliper out to fit 12" front C4 Corvette rotor (for 88 Fiero)
I also received new aluminum front hubs to match this brake setup.
