suspension is one area where the calculations are massive, simply cannot be explained in a forum.
to start with, basic calculations include the weight of the car with driver, C.G. of the car & weight distribution.
since ours is an outboard suspension, based on the above factors, we decide & calculate the motion ratio, damping ratio, wheel rate & spring rate.
if you are interested in learning such stuff, you can download a wonderful e-book- name is "tune to win". it will cover all the basic stuff. for more advanced learning, you will have to refer various other books & many websites are also useful.
by the way, what is your project?