Cup car spring rates
11-19-2004 | 01:48 PM
#1
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Joined: Jun 2001
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From: Portsmouth, Ohio
Cup car spring rates
Anyone know the spring rates for a cup car coilover? The numbers on the springs are as follows.
The front springs are ERS 140-60-140 and the rears ERS 140-60-160. All four "Tender" springs are ERS 50-60-40/120.
Is a cup car suspension even worth doing on a 993 D class PCA race car (track only) given the obvious weight difference between a cup and stock car? Any input is appreciated. TIA
The front springs are ERS 140-60-140 and the rears ERS 140-60-160. All four "Tender" springs are ERS 50-60-40/120.
Is a cup car suspension even worth doing on a 993 D class PCA race car (track only) given the obvious weight difference between a cup and stock car? Any input is appreciated. TIA
11-19-2004 | 02:44 PM
#2
Drifting
Joined: Sep 2002
Posts: 2,166
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From: La Jolla, CA
I do not have the actual spring rate that are on my cup suspension handy, but it definitely transformed the car on the track (and on the street for that matter around corners). If you have a dedicated track 993 I would do it. I am very happy with mine!
11-19-2004 | 03:19 PM
#3
Three Wheelin'
Joined: May 2001
Posts: 1,620
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From: Plano, TX
John,
Those spring rates are pretty good for a track car. They are the equivalent of 800 lb/in front and 914 lbs/in rear. I run 650 in the front and 800 in the rear and I think it needs to be stiffer. What kind of shocks are they going on?
George
Those spring rates are pretty good for a track car. They are the equivalent of 800 lb/in front and 914 lbs/in rear. I run 650 in the front and 800 in the rear and I think it needs to be stiffer. What kind of shocks are they going on?
George
