Originally posted by lt1s10
shocks are not rated like a spring. it wouldnt be a 800 spring and a 800 shock. the springs holds the weight up and the shocks controls the up and down movement and the valving is made so if you put them on a heavy car or light car they will bounce the same. this is JMO and i could be wrong.
From what I have been able to find out, shocks are rated in lbs. of force required to move them a specified amount of travel.
Each setting on a 3-way shock is a different value in lbs. (force) vs. travel (velocity). While springs are sold according to front end weight, if my front end weight falls close to being able to use one of two different springs, that could make a big difference in how the weight transfers on launch. Having only 3 settings on the shock I feel it is important to select the optimal spring rate. I purchased scales which should be here today, so I'll know exactly what my choices are for springs.
Thanks for your feedback!