Quote:
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)
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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.