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Old 05-04-2003, 08:31 PM   #1
edkwon
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Default Question about spring rate measurement units

I know that my JIC front/rear spring rates are 7/6 but what exactly are the units? 7 what and 6 what? And what kind of units are used for spring rates measured in the 200-300 range?

Ed
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Old 05-04-2003, 08:52 PM   #2
subysouth
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kilograms per mm.

You have to do the conversion lbs/inch.

ss

edit: IIRC it should be -

7 x 2.20462 x 25.4 = 392 lbs/in
and
6 x 2.20462 x 25.4 = 336 lbs/in

Last edited by subysouth; 05-04-2003 at 09:00 PM.
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Old 05-04-2003, 09:13 PM   #3
edkwon
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Ah thanks for the numbers and math

Ed
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Old 05-04-2003, 10:38 PM   #4
Claudius
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Just to add to the confusion spring rates are also sometimes expressed in N/mm, which is kg * 9.81, so basically in your case it would be 70/60. SOunds like about the limit in stiffness for a car on road tyres. The rears might be a little on the hard side...
How does the car behave with those on? I would imagine rebound to be a little on the fast side?
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