Real Fiero Tech

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. ...

Camaro/CT6 Seals, cross ref'd to gm parts direct catalog: GM GENUINE 291352 Specifications Color Brown, Black Inside Diameter (IN) 1.89 Inside Diameter (MM) 47.92 Material Rubber Outside Diameter (IN) 3.26 Outside Diameter (MM) 82.69 Rim Shape Round Seal Type Gasket Sealant Included Yes Shape Round ...

The seals used on the F40: NATIONAL 3543 Specifications Flanged Outside Diameter (in) 2.441 Flanged Outside Diameter (MM) 62.000 Helix Type Bi-Directional Lip Design Housing Bore (IN) 2.162 Housing Bore (MM) 54.915 Inside Diameter (IN) 1.378 Inside Diameter (MM) 35.000 Material Silicone Outside Diam...

Since I only currently have the Saab 9-5 Intermediate Shaft, I ordered a set of GSP axles (same for length for passenger and driver) from Rock Auto at $55 a piece. These are new axles, so I will assume the inner shafts will be in now way compatible with stock GM parts, but Ill have some starting poi...

The seal surface on that stub appears to be much larger diameter than the f40's seals, but the splined end looks promising.

Series8217 wrote: ↑Thu Sep 14, 2023 3:12 pm Unfortunately it looks like the BMW stubs use a 30 degree angle instead of the 45 deg that GM likes to use.

That's a Bummer.

Running a quick power/time/capacity convergence calculation: Average Power Production for my make-believe engine between 3000 to 7500 RPM is around 400HP Screenshot 2023-09-14 130238.jpg 400HP accelerating from 0-135MPH (top of 4th gear in my make believe transmission) in a 2800lb car takes 15 secon...

We have used the GKN CV 15 in some applications at my work, and a we have a driveshaft using the the GKN 18 joint at both ends, They hold power very well. I like to refer to them as their colloquial usage terminology as the auto aftermarket does as well, and offer "upgraded" interchangeabl...

Example of the end goal:

I have been looking into this more. What I know so far: F35 Application such as a HHR/Cobalt Axles have the same spline engagement for this app in a Fiero. These cars run jackshafts. Supercharged cars have matching outboard splines to the Fiero, Probably a GM Econo Box Carry over (J-Body ETC) The G6...

Bravo. This is exactly what I wanted to do with the rebuildable Jeep Bearings, which should take S10 outer CVs, that should fit Fiero Axle shafts. But I know 934 Stubs are available for $500 a pair from Dutchman for the 33 spline C7 Vette, I have not determined if the F40/LS4 has the clearance on th...

Series8217 wrote: ↑Sat Sep 09, 2023 7:51 pm A bare 88 cradle weighs 53 lbs.

Thank You, that confirms other data I have seen. I think there can be something of similar stiffness made with a loss of mass here.

While I'm waiting for UPS to unf*ck my shipping of the old head and intake, I went to the block to prepare it for deep cleaning. I have most of the freeze plugs pulled, but the rear freeze plug is very stiff and will not budge with my drill and pry bar method, I will have to cut it out, its now lodg...

I remembered, I own a G-Tech RR. I pulled a data log from my old LS1 GTO during a track day: I multiplied velocity by forward g's and again by 3800lb to get approx. instantaneous power (negating incline and aero drag) Screenshot 2023-09-07 171141.jpg Physics 100 math: Force [lb]=mass[slug]*accel [ft...

I recently acquired, from eBay, a dual 48mm DCOE flange for building my '801 ITB manifold. I will have to open up the runner ports to 50mm to match my larger throttle bodies. I want to have an aluminum intake for the final build, but I am thinking I can dyno test with a 3d printed one to confirm it ...

I have been reconsidering my Water pump scheme, read below: LS Coolant Flow: LS cooling system - numbered.jpg I currently have on my shelf the Meziere remote mechanical pump: WP430S Meziere makes a coolant manifold, WAM119S https://www.summitracing.com/parts/mez-wam119s?rrec=true Unless FieroGuru re...

Fiero guru built his own new lower cradle and if I recall, there was some weight saving but not as much as I think should have been considering the amount of time it took to build. So right now it is 21.8 lbs lighter, but will continue to get heavier. If I can end up with the cradle 15 lbs lighter,...

What I'm after is reduced weight, and altered geometry to correct for a lowered car, like raising the inner pivots. If I recall, the Factory 88 Cradle weighs near 60lbs bare. Ah ok. Yeah the stock cradle is heafty, but I always thought this a plus given what it does. I've bottomed my cradle out a l...

IMG_8168.jpg This is the photo if found from FieroGuru with the F40, I think, he kept the factory engine crankshaft centerline, therefor the F40 moves the axle centerline forward in the vehicle. It looks like the fore pivot has less clearance to his CV joint, which is I think is different than the ...

It appears there is only enough room for around 1" rise on the pivots, I would also ditch to square socket like shape of the mounting point and use just two tabs, to maximize vertical clearance.