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Join Date: Jan 2008
Location: Central California
Posts: 462
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Front spring help
Are 8" springs too short for my '84 using stock spring perches? I know they'll work with the adjustable perches.
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84 Red 944 NA - Das Swurvenwagen - still street legal but it's just a track toy My Website: http://www.TrackPics4Less.com |
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09-11-2009, 01:08 PM
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Join Date: Mar 2008
Location: Chicagoland
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what spring rate?
I had done some calculations before and figured with a 8" 350 lb springs would be like a 3" drop from stock. |
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09-11-2009, 01:16 PM
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I'm thinking 300-325 lb.
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84 Red 944 NA - Das Swurvenwagen - still street legal but it's just a track toy My Website: http://www.TrackPics4Less.com |
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09-11-2009, 01:22 PM
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see post #9
http://forums.rennlist.com/rennforums/924-931-944-951-968-forum/55508-which-springs-for-bilstein-coilover-set-up.html plug in yer own numbers 
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09-11-2009, 01:25 PM
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Join Date: Dec 2003
Location: NYC
Posts: 217
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yes def too short..need adjustable perches. i may have a set of springs that are 12inch long - spring rate of 200lb. if need them i will let them go cheap. used them for one season with stock rear torsion bars..
vtach nyc |
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09-11-2009, 03:21 PM
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Join Date: Jun 2006
Location: O.C. CA
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i think i have a pair of 10" 350# eibach springs lying around here that have about 10 hours on them
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09-11-2009, 03:51 PM
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Thanks. The 12x200lb would be better than my stock, but I'm planning to put in some 29mm t-bars so I'll need to match the spring rate in the front. From what I've researched it should be about 300lb to be balanced. I'd go with a 30mm tbar, but the price difference is over $100 from a VW 29mm.
I might be interested in the 350lb though, it would push a little but that's better than snap oversteer I guess. Let me know what you want for them.
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84 Red 944 NA - Das Swurvenwagen - still street legal but it's just a track toy My Website: http://www.TrackPics4Less.com |
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09-12-2009, 08:38 AM
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Toofah King Bad
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300 is way too soft for 29mm t-bars. See spring rate table here: http://www.tech-session.com/kb/index.php?article=39
400 or 425 would be a more appropriate match.
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» 1987 924S Turbo - Got Boost? « "DETERMINATION. Sometimes cars test us to make sure we're worthy. Fix it." - alfadoc Last edited by Rasta Monsta; 09-12-2009 at 08:59 AM.. |
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09-12-2009, 08:55 AM
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am I doin it wrong? Your chart and others I've seen say 29mm Tbar = 292lbs effective rate. So 300lb would be a close balance.
Most of the 944Spec folks use 30mm tbar with 350lb front.
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84 Red 944 NA - Das Swurvenwagen - still street legal but it's just a track toy My Website: http://www.TrackPics4Less.com |
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09-12-2009, 02:22 PM
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Toofah King Bad
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Pasha recommends setups in his oft-referenced suspension prep article that are 30-40% stiffer in the front. Makes sense to me. . .seems like most of the body roll is up front.
However, there is certainly nothing wrong with listening to people with track experience and making a decsion you are comfortable with. . .and the beauty is sleeve-type springs are cheap and easy to swap around.
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» 1987 924S Turbo - Got Boost? « "DETERMINATION. Sometimes cars test us to make sure we're worthy. Fix it." - alfadoc |
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09-12-2009, 05:49 PM
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Shaggy
Red
Chumpy
Weiße Scheiße
