[fordracing65]

Originally Posted by Kobura

My aim is to install the softest springs that I can while maintaining proper ride height. My reasoning is based on my understanding of a simple spring-mass-damper system which those of us studied as an introduction to mechanical vibrations and dynamics in engineering or physics. The solution of the motion for such a simple system, which I admit is inaccurate for a car suspension, includes the critical damping ratio which can describe the amount of damping required to bring a vibration to a stop in the least amount of time without oscillation/overshoot. The solution is that the viscous damping factor/amount of damping is proportional to spring rate. Spring rate, on the other hand, is proportional to the natural frequency. So, my thinking is that I want a low natural frequency for a soft ride and enough damping to keep oscillations to a minimum or zero. So, I am going to try springs that compress down to the proper ride height while using my current shocks which are for a comparable light car(VW Bug).

If springs compress they will become stiffer not softer...