TRD shocks and springs

[NoHachi]

No you would have to do some calcs on that.
You are planning on track duty no? How much experience do you have? Do you have any laptimes for reference?
Will you be running street tires (0.8G), semi-slicks (1.0G-1.3G) or slicks (1.4G-1.7G)?
Depending on experience choose the lower number for little experience or the higher number if you run close to class record lap times.

You do the same calcs I did. Static cornering load = static load (veh.weight) and cornering load (approx.).
Static load = ~275[kg]
Cornering load = static load * G-force
Needed bump travel = 1.1*static cornering load / spring rate.

So for street tires you need about 1.1(275+275*0.8 ) / 8 = 68mm bump travel
Street = 68mm
Semi = 76mm - 87mm
Slick = 91 - 102mm
(when using 8kg/mm fronts)

Do you understand how to go from that number to the correct length of the strut and the position of the perch?