[Ryephile]

I'm sure there are fomulae to predict the correct damping force per spring rate based on motion ratios and sprung/unsprung weights, however I don't have that information, nor am I a damper dyno expert.

Since every car, and even every trim level within the model lineup are slightly different, I'd approach "ideal damping" a bit differently. I'd put suspension stroke linear sensors and accelerometers at the hubs and chassis to measure the "Q" of the bump response. I'd then back it up with seat time at the track and referenced street sections to ascertain low, medium, and high speed bump and rebound response. Of course, you could do it like so many race teams do; get out on the track with timers and see what goes quick and what doesn't. With enough testing time, you can narrow down what settings work best for your car and your driving style.

-->Dimman: With your Supra, you may want to have QA1 dyno your existing dampers, and use a deduction based on new spring rates and personal preference as to what new damper curve they should shoot for.