I have some friends working with me to find some seat brackets in Japan. Hoping to get them by the end of the year. Still not sure what I will do with the back seat.
After a post on another thread I had been thinking about my spring rate some.
Also here is some interesting reads on the subject.
http://wrcbehindthestages.blogspot.com/ ... o.html?m=1
http://www.club3g.com/forum/wheels-tire ... rings.html
And a handy conversion tool.
http://www.unitconversion.org/torque/ne ... rsion.html
Currently have 10kg/f, 7kg/r.
I can go down to 8kg on the front without revalving. I can go down some on the rear as well.
I might drop just the front rates and leave the rears alone. If I don't like the balance, I can always get lower rates for the rear too. But by going down to 8kg in the front will be similar to the TTE 185 rates.
The rates are here:
http://gtfour.supras.org.nz/suspension.htm
The lbs are wrong, but the kg conversion comes out to
F: 8.157729704
R: 7.647871597
What got me thinking about this was bump steer. I think my front traction issues might be mostly due to high front rates. Monkracing came by a bit back with a low milage stock 185. Out of curiosity I we checked its ride height and compared it to my own. We assumed that I was slammed. Based on his measurements my car seemed to be only 1.9" lower. That didn't seem right. So I looked at tein's chart in the manual for the HAs and I am only .4 lower than their recommended height. I assumed I was 2.5" or lower, but it is an illusion by my tires. My tires are 2" taller than stock. So it raises the car 1" and fills the fender wells 1" more than we expect. So my car looks 2.9" lower, but in reality it is not so extreme.
So there is a good chance my bump steer is not near as bad as I suspected. It may exist, but I think by lowering the front spring rate, and messing with the alignment I might improve the front traction issues. I never really had these traction issues during autox or even on the dragon, but when there is less than smooth pavement my front tends to skid over bumps etc.. So its something I will experiment over the winter.
I am thinking swift springs for the front. I just need to take some measurements. I might stay with the tein helper spring.
http://www.swiftsprings.net/products/un ... gs-70.html
Teins info:
http://www.tein.com/products/standard_s ... _list.html
EDIT: I will also be looking into spring types after reading this.
http://www.hrsprings.com/technical/detail/bump_steer
Swift Z70-203-080 vs tein SB080-01200 and SB100-01200