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911st 911st is offline
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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269
Bellow is the apx spring rates of 911 torsion bars:

Front: lbs/inch % of stock
18.8 110
21 173 157%
22 210 191%
23 250 227%
24 290 264%
Rear
24.1 122
25 140 115%
26 165 135%
27 191 157%
28 221 181%
29 254 208%
30 294 241%
31 332 272%
33 427 350%

Adding 200 lb helpers to the rear increases the rate from about 140 to 340 lbs per inch putting things way out of ballance.

Good combos migh be 22/29, 23/31's with stock sway bars. A max torsion bar set up would be 24/31'a with 27/22 sway bars. 400/600 coil overs would be a step up from that.

Sorry, I got carryed away. Check with a real expert.
Old 02-19-2009, 06:37 PM
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