Spring rates for Vogtland springs? - SaabCentral Forums
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Old 28th October 2010
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Default Spring rates for Vogtland springs?

Anyone know the front and rear spring rates for ng900 Vogtland springs?

TIA.

Edit: I'd be curious to know the stock spring rates, too...

Last edited by thestig99; 28th October 2010 at 05:53 PM.
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Old 28th October 2010
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whats the curb weight for your car

front?
rear?

i have a spring rate chart i can look this up for ya
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Old 29th October 2010
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I'd estimate about 2800lbs with me in it, probably 60/40 front/rear?
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Old 30th October 2010
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9-3 is approx 900kg front ,500kg rear.
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Old 30th October 2010
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Quote:
Originally Posted by SaabNGT View Post
9-3 is approx 900kg front ,500kg rear.
A 5spd 3dr starts out lighter, ~2950lbs, and the one in question is about 300lbs lighter than stock Weight distribution I'm pulling out of my *** because I didn't feel like looking up... (but more nose heavy than std I'd imagine, pretty much all the weight came out of the back).
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Old 30th October 2010
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Old 30th October 2010
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Interesting chart, but I want to know the rate for the springs that I already have... not what's suggested based just on weight

Have Vogtland springs, I want to try rear springs with a higher spring rate in the hope that it will help the car rotate a bit better.
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Old 31st October 2010
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wow optimal rates are about 450 in the front and 110 in the back lol

I'd watch out for having it too stiff in the back though in Vermont, in my case with stock springs and bilstein shocks and 22mm rear arb causes pretty nasty snap over steer over bumps and uneven roads, and lift throttle over steer.
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Old 31st October 2010
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Quote:
Originally Posted by lowbudgethero View Post
wow optimal rates are about 450 in the front and 110 in the back lol

I'd watch out for having it too stiff in the back though in Vermont, in my case with stock springs and bilstein shocks and 22mm rear arb causes pretty nasty snap over steer over bumps and uneven roads, and lift throttle over steer.
Track/autox/occasional street use. My 9000 Aero gets the summer fun, and my other 900SE gets winter duty.

Vogtland springs, Bilsteins, and 25mm ARB and it won't oversteer. The stock 9000 will happily step its tail out in a slalom, but not the modded 900
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