Camber adjustment on Dune Buggy rear wheels with IRS axels

[Spowers]

Question...I have a fairly new Berrien Dune Buggy frame/body and stock VW 1600cc. The rear wheels have too much negative Camber (about 5 or 6 degrees) so the inside edge of the rear tires are going to wear out first. Can I adjust (raise the ride height) on the torsion springs a few splines to fix this? Or, is there a way to adjust the Camber at the IRS Axel hub? Any insight would be much appreciated. Thanks!

[NJ John]

Adjusting ride height on an IRS does little to affect camber. Worn bushings or bent control arms often are the problem.
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1973 standard, yellow, lowered, 3” narrowed front, 1600 blo-thru turbo w/single dell 15.4@86, so far
11.41 et buggy. Long gone
Let’s go O’s! Let’s go O’s!
https://www.youtube.com/@AirSpooledGarage

[jsturtlebuggy]

Loosening of spring plate bolts with tires on the ground, the weight of car will allow movement in bolt in the slots on spring plate and can help with getting less negative camber.
Used to this in a shop I worked at.
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Joseph
Fair Oaks/Orangevale, CA
Elrod Motorsports
Motion Tire Motorsports
Having fun with Dune Buggies since 1970
Into Volkswagens since 1960

[NJ John]

I’ll have to give that trick a try.
_________________
1973 standard, yellow, lowered, 3” narrowed front, 1600 blo-thru turbo w/single dell 15.4@86, so far
11.41 et buggy. Long gone
Let’s go O’s! Let’s go O’s!
https://www.youtube.com/@AirSpooledGarage

[Spowers]

I notice a lot of lowered VW's (Torsion spring adjustment) have increased negative camber. So I'm wondering if I raise my ride height with Torsion Spring adjustment if the Camber will go back to normal and the camber won't be so negative. Just a thought...

[OCD Garage]

Yes it will, but you will of course be higher so the front may have to follow.

[EVfun]

[oprn]

First post says IRS.
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Our cars get old, we get old but driving an old VW never gets old!

[Spowers]

Thanks to everyone for all the feedback. Love this forum! I have a fairly new Berrien Buggy/frame (only 800 miles on it) Stock 1600cc motor with IRS transaxle. Can't imagine the bushings are already worn out but will check. I like the suggestion of loosening the spring plate bolts while tires are on the ground. Gonna try that first. If that doesn't work I'm going to adjust the ride height up a few splines in the hopes the camber becomes less negative. I'll post the results for learning purposes.

[cbeck]

First pic shows the top of the tires leaning out. The stub axle centerline is above the springplate center line.
Second pic shows how far I was able to bring in the top of the tires by bringing the stub axle centerline closer to, or below the springplate centetline.

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My cut in half and rebuild thread
www.thesamba.com/vw/forum/viewtopic.php?t=647779