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Mothy Mothy is offline
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Join Date: Jul 2005
Location: Sydney, Australia
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Torsion Tube Reinforcement

I am in the process of rebuilding the suspension in my 911 IROC replica.

One option I am looking at is to move to coil over suspension front and rear, using 935 style rear 'spring' plates, which opens up a much bigger range of spring rates and easier ride height and suspension geometry changes.

The need to reinforce the rear shock towers and cross member when going to coil over is well understood and documented on various threads.

However, I was wondering if I need to be worried about reinforcement of the Torsion Tube area where the 935 style spring plate will connect to the chassis - this area was known to crack sometimes when upgraded torsion bars are fitted.

I was thinking that since all the spring and shock loads will now be going though the shock tower, is there still the need to reinforce the torsion tube area now it will become just a pivot point.

Swapped my WRX Sti MY02 for a Porsche 911SC '83
Keep buying parts to make it look older.
Mid life crisis is now in its 12th year.
Old 12-21-2017, 07:12 PM
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