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28 Dec 2008, 19:57 (Ref:2362003)
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#1 | |
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Rookie
Join Date: May 2008
Posts: 12
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Effect on Coil rate of inclined Shocks
Hi all,
Trying to calculate the spring rate i need for my car and wondering how, what formula is used to take into consideredation the inclination angle of the shock/ damper? Thanks in advance Regards Ross |
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29 Dec 2008, 09:02 (Ref:2362170)
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#2 | |
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Veteran
Join Date: Jul 2005
Posts: 1,981
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If you know the wheel rate (WR) you want and the angle of the damper from vertical (A), required spring rate (SR) can be calculated as follows:
SR = WR / (cosine(A))^2 e.g. if A = 30 degrees and WR=100lb/in SR = 100 / (COS(30))^2 therefore: SR = 100 / (0.866025)^2 so: SR = 100 / 0.75 which gives: SR = 133.33lbs |
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