Just in case anyone is interested please see link below for some 911 (or 914-6) 23mm effective rate Sway-a-way hollow front torsion bars. These lightweight hollow bars that would be ideal for a track biased 911. They have had very little use and it is unusual to find them second hand in this diameter and condition. I fitted them to my car because I intended to use my car for some historic circuit racing but then found that getting an HTP or HVIF was much more difficult then I had assumed for my mildly modified 914/6. Now fitted some 21mm front torsion bars as I am only using my car on the road.
http://www.ddk-online.com/phpBB2/viewtopic.php?t=21222
23mm 911 hollow front torsion bars for you racers out there
Moderator: Bootsy