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Originally Posted by SINISTER Why is the rear spring rates stiffer on our cars? Nismo Spring Rates: F - 8.6kgf/mm (480lbs/inch) R - 9.3kgf/mm (520lbs/inch) Suspension Worksheet | eibach.com/america "Wheel

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Old 04-25-2017, 02:50 PM   #34 (permalink)
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Quote:
Originally Posted by SINISTER View Post
Why is the rear spring rates stiffer on our cars?
Nismo Spring Rates:
F - 8.6kgf/mm (480lbs/inch)
R - 9.3kgf/mm (520lbs/inch)
Suspension Worksheet | eibach.com/america

"Wheel Rate is the actual rate of a spring acting at the tire contact patch"

Simplifying the exercise by using 90 degree spring angle, motion ratio of approximately 0.65 front and 0.55 rear, I am getting wheel rate of 3.6kg and 2.8kg respectively. So, at the OEM spring location, the front is still heavier sprung than the rear.

This is my simple understanding.
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Last edited by cv129; 04-25-2017 at 02:56 PM.
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