Torsion bar length

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bugingreasemonkey
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Joined: Sun Oct 18, 2015 8:43 pm

Torsion bar length

Post by bugingreasemonkey » Wed Jul 25, 2018 8:46 pm

This question may have been asked before but has anyone ever heard or known someone who has shortened a torque bar and tube on their bug?

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Chip Birks
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Joined: Wed Mar 12, 2008 7:59 pm
Location: Pleasant Grove, Utah

Re: Torsion bar length

Post by Chip Birks » Wed Jul 25, 2018 9:21 pm

Lots of narrowed torsion cars out there. Nobody shortens the torsion bars, instead they mix and match spring plates and torsion bars to get things either 3" or 5" narrower than stock, per side. The tube must be shortened to accomodate the narrowing though.

Ol'fogasaurus
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Location: Just north of Seattle

Re: Torsion bar length

Post by Ol'fogasaurus » Wed Jul 25, 2018 9:29 pm

You can buy different stock per year lengths but shortening them is going to be a long, tedious machining (the inside and outside are different spline counts) problems as well as the right material the tempering.
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What I have seen done is to get rid of the torsion housing and add pivots or radius rods to replace the spring plates then go to coil-over shocks.

Lee
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H2OSB
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Joined: Mon Aug 21, 2000 2:01 am

Re: Torsion bar length

Post by H2OSB » Wed Jul 25, 2018 9:54 pm

Steve Carter from Australia, who has a Subaru STI (jdm version) powered Super Beetle shortened his torsion tubes to fit some giant Porsche gearbox (like a G50). He uses the shortest length torsion bars, IIRC. I believe they 30mm bars. He gets on here from time to time. Perhaps he'll chime in.

H2OSB

bugingreasemonkey
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Joined: Sun Oct 18, 2015 8:43 pm

Re: Torsion bar length

Post by bugingreasemonkey » Thu Jul 26, 2018 10:01 am

Ok thanks y'all I'll play around with it and c what i come up with.

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