 Torsion bars - soild VS hollow |
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| GaroldShaffer |
 Sep 19 2005, 08:53 AM
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#1
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You bought another 914?  Group: Benefactors Posts: 7,622 Joined: 27-June 03 From: Portage, IN Member No.: 865 Region Association: None 
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I'm starting to put together my winter project of suspension work. I have my Koni adjustable spring perches & springs and Weltmeister front adjustable sway bar coming soon from Rich (a914guy) and I am now looking at torsion bars.
PP has both the solid & hollow 21mm torsion bars at $240 (solid) & $291 (hollow). I have come to the conclusion that I want AX car that I can drive on the street so with that in mind is extra $$ for hollow torsion bars worth the money? What is the advantage of hollow over solid? Thanks (IMG:http://www.914world.com/bbs2/html/emoticons/beer.gif) |
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| Jeroen |
Sep 19 2005, 09:02 AM
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#2
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914 Guru Group: Members Posts: 7,887 Joined: 24-December 02 From: The Netherlands Member No.: 3 Region Association: Europe |
the advantage over solid is that they weigh less
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| ArtechnikA |
Sep 19 2005, 09:03 AM
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#3
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
they're a little bit lighter. they're pretty low, where a little additional weight is not a huge deal. i bought them for my 911, in part because rear torsions are pretty big and heavy and i wanted a matched set. in part, because i wanted the "ultimate" suspension i wouldn't be tempted to second-guess and "upgrade" again later. "worth it" for a car with rubber in the suspension? probably not. (i have no rubber in the 911 suspension.) YMMV. one additional minor factor - typically, the only people making the hollow bars are the good makers - e.g. Sander or Charlie - so you may be getting a bar with a better alloy of steel, better heat-treated, and with better, more accurately machined splines. might. |
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| Aaron Cox |
Sep 19 2005, 10:55 AM
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#4
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
sway away also make hollow bars rich....
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| ArtechnikA |
Sep 19 2005, 11:04 AM
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#5
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
i have some Sway-A-Way parts - i think my adjustable spring plates are S-A-W. they have a good reputation in axles and i'd see no reason they couldn't also make good torsion bars - they've been doing it for the SCORE crowd for 40 years. or is your meaning that you consider the Sway-A-Way parts to be inferior; it could be taken either way... |
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| Aaron Cox |
Sep 19 2005, 11:07 AM
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#6
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
just throwing it out there that they also make hollows.....
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| anthony |
Sep 19 2005, 11:28 AM
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#7
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2270 club Group: Benefactors Posts: 3,107 Joined: 1-February 03 From: SF Bay Area, CA Member No.: 218 |
I would get solid. I think the weight savings must be pretty small. Divide the weight loss by the extra $$$ and you'll probably come to the conclusion that the money could better be used elsewhere on the car.
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| GaroldShaffer |
Sep 19 2005, 01:03 PM
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#8
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You bought another 914? Group: Benefactors Posts: 7,622 Joined: 27-June 03 From: Portage, IN Member No.: 865 Region Association: None
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Yep, that's what I thought too. Just wanted make sure there wasn't some sort of magic powers from using hollow torsion bars (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif)
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