924Board.org

[Project-924-1979]

Hello everyone,

I've recently asked for some information on solidmounting the torisonbar type rear suspension on my Porsche 924. After looking at the possebilities I've found that these solid mounst are very expensive.

The mounts I am talking about are these: 477 501 089 and 944 331 075 00

The solidmount replacements cost about 250 to 300 euro's for a set of four, which is a lot for a simple mount.

So I have descided to make my own from stainless steel.

These are the mounts I have designed (see photos below)

I'm making these mounts for myself, but if some is interested please let me know. Pricing will be around 150 euro's

The mounts will include new hardware aswell.

[img]20250219_150233 by ryanhettema14, on Flickr[/img]

[img]Schermafbeelding 2025-03-06 082821 by ryanhettema14, on Flickr[/img]

[img]Schermafbeelding 2025-03-06 111935 by ryanhettema14, on Flickr[/img]
_________________
Restoring a late 1979 Porsche 924. This is my first car and my first attempt at restoring a car.
Learning a lot along the way and doing as much as I can myself.

[Raize]

The photos aren't working.

[Project-924-1979]

Photos should work now!
_________________
Restoring a late 1979 Porsche 924. This is my first car and my first attempt at restoring a car.
Learning a lot along the way and doing as much as I can myself.

[Raize]

I think the second one is missing a slot feature that the torsion bar carrier "arm" slots into. Looks like the bottom part is just solid.

I used 3mm thick mild steel and mine are holding up fine provided that they are painted.

Be careful about galvanic corrosion if you are using stainless, you should still paint it to electrically isolate it from the steel parts it attaches to, despite that it won't rust itself it will accelerate rusting on everything it touches. Use zinc plated bolts and consider them sacrificial anodes for the chassis - don't use stainless. Replacing a bolt after the cathodic protection fails is easy, replacing the captive nuts in the chassis because they were rotted out by being anodes to stainless bolts is incredibly hard.

You need to be quite confident in your welding skills if you want to sell them, there is a big liability issue if a part breaks and it's why I never got into selling copies of the things I make.

Good luck!

[Project-924-1979]

Thank you for your reply.

As for the 'slot' you are correct. The bracket does not include a slot as the long plate that is on the torsionbar just clamps to the side. This is how it is done on multiple aftermarket solutions.

The bracket will be painted with a primer and topcoat. To reduce the chance of rust on any for the parts and coated steel mounting hardwere will be supplied with the mounts.

The welds will be done by a professional that has over 20 years of experience and also is an engineer. He helped with the design aswell.
_________________
Restoring a late 1979 Porsche 924. This is my first car and my first attempt at restoring a car.
Learning a lot along the way and doing as much as I can myself.