Does anyone know the front and back motion ratios of the TME??

I'm tring to figure out the best way to set my car up for the track, starting with appropriate spring rates. I know the earlier cars are lighter in the rear but I'm unsure about the motion ratios. I'm looking to start with increased caster 5-6 degrees, camber of 2.5f 1.8r and 0 toe. I have JDM coilovers that is 12k/f 9k/r that I can bump up to 11k/r without revalving and stock sways. I also have mechanical LSDs front and rear. Any opinions on good spring rates for my base setup on a 6.5 RS?

 

All evo's use Mac strut up front and multi-link (double wishbone) rear suspension. So you can make a guess that the front will be 0.95-1 and rear 0.6-0.85. Id bet you're in the same position as use CT9A guys in needing higher rear rates than front but Id suggest you measure it. Its not really that hard and will teach you quite a bit.

Take off the tire and strut, remove spring, and re-install strut. With a jack under the control arm or brake move the suspension through its range ~1in at a time measuring 2 points, one at the brake and the at the shock shaft. Plot those and do a best fit linear line. The slope is your ratio.

You can also do it with online calculators measuring lever arms and angle of the shock, but I like the direct method better.