Real Fiero Tech

Slayed some cones over the weekend at a PCA event and then Corner Exit Autocross. I definitely lost a lot of skill due to my 8 year hiatus from motorsports, but I picked up a lot of speed throughout the weekend. At least it's coming back. No major issues with the car other than my rear camber slippi...

Exhaust is done and looks great (in my completely unbiased opinion). Only remaining thing is I'll probably need some kind of heat shield on the bumper plastic but we'll see once the car is running. I'm melting my bumper with less exhaust heat and more clearance to the tips. Add the shields and don'...

I was checking out Onshape, and it looks like it has some sort of FEA built into it. However, that looks to be a $$$ paid option. For comparing the strength of different engine mount designs (which can be hard to analyse by intuition with their funky shape), I think that doing sort of basic static ...

Hey Michael! Will just sent me a link to your thread.. happy to see you on here! Car looks great. Let's hang soon.

Can the BMW unit just work with a vehicle model, or does it also need empirical trial-and-error tuning? Most people using these on race cars don't even customize the model. At least for ABS it seems to be quite competitive with the stock M3 programming. If I ever enable the DSC functionality there'...

Getting close to ready for real shakedown run. Maybe an autocross or track day in February. New wheels and tires mounted. 265/35/18 front and 315/30/18 rear on Apex SM-10 wheels 18x9.5 front 18x11 rear. Wheel speed sensor cables routed and working. Laptop in the pic is running INPA for bleeding the ...

Getting serious. My new prototype rear uprights are on the car, and a massive stack of wheels and tires has arrived. Unfortunately while installing the uprights I discovered my Konis have dumped most of their gas charge so I need to move forward my Bilstein project or get the Konis rebuilt (and migh...

I'll put my aaron88 brake bias adjuster up for sale after I have my new brake system installed this spring, if you can wait that long.

One fully assembled and painted upright ready to go on the car.

I personally would prefer the mechanical parking brake, are the electric units lighter? I can't imagine them being lighter than a cable, but I could be wrong. It's a mechanical drum-in-hat brake. The actuator I'm referring to only replaces your stock brake handle with a button you can mount anywher...

You thinking to cut the tripod and weld on a flange to the stub? I don't see why that couldn't work. Even some of the OE Audi/VW tripods have a welded on flange.
Now that I think about it I talked to Chris West about 930 axles a few weeks ago and he said he has done exactly that for an F40 before.

the rears look fantastic! are you considering production of them? I've been slowly working on a design of my own, but I am much more impressed with what you have come up with! does it have provisions for a parking brake? I'm considering putting them in production if there's enough interest. It uses...

Will these plug into the F40? Compatible with GKN size 18, based on the Camaro axle I have for reference.
https://www.summitracing.com/parts/ado-84371225

Unfortunately it looks like the BMW stubs use a 30 degree angle instead of the 45 deg that GM likes to use.

The 934 joint is massive and heavy . It is used for applications like unlimited class Baja trucks. At the low angles you are running with a Fiero, I can't imagine you would need more than a high quality 108mm joint, or maybe a GKN size 18 if you're going to be drag racing on a treated surface with s...

Rear uprights coming along well. There are a few options for hubs including 5x120, 5x4.75, and 5x114.3. All accept large 33 spline outer CVs and there are a few different axle solutions that range from an outer CV swap to 930-style CV conversions, depending on your torque requirements. I'm using the...

A bare 88 cradle weighs 53 lbs.

Any possibility of using the Camaro hub and larger axle while retaining the stock Fiero bolt pattern? No, the Camaro bearing OD is 98mm. If your Fiero isn't a track car with big sticky tires, the rear bearing you want is the AC Delco 20-25K (J body application). It requires some machining to fit th...

Looks good. I can't imagine you'd need any more braking capacity than that. Thanks! Definitely not at this power level, but I'm working on plans for that... :twisted: I might refinish the calipers, but I'm going to wait and see how they perform. None of the GM 4 pot Brembos have staggered piston si...

Got a lot done in the last few months: - rewrapped the roof - designed and installed bespoke aluminum front knuckles with C8 Corvette hubs (5x120), upgraded ball joints, double shear steering clevis and bump steer adjustable rod end outer link - rod end inner pivots on adjustable upper control arm (...