Currently I have an naturally aspirated H22A hatch (soon to be turbo H22 hatch) GC coilovers with 400F and 350 R spring rates. I have the car about 1.5" drop or so. With the low oil pan, and my low traction bars I do scrape sometimes. Personally I feel these springs are too soft. Especially in the rear. I cannot get the car to over steer at all unless I have the rear Koni yellows turned all the way to the top and the rear tires at 45 PSI and I do a very violent off throttle transition around corners. It handles pretty well but I am looking for more. My goals are:

-better handling (even though it does handle quite well)
-keep the traction bars and oil pan off the ground
-balance the handling out better
-run a bit stiffer spring in the rear for better traction in the straight line
-trying not to get the car with an unstreatable suspension.

I was thinking about 450-500 pound springs. Thinking like 475F 500R. What do u all think? Also what spring rates are 10KG springs? cuz I have a friend who has the Skunk2 (Prelude spring rates) in his H22A hatch and I dont think it was all that rough riding.

Please feel free to make suggestions.

 

You should ask this in the road race forum, they have a lot of experience with spring rates.

I'm not sure the coilovers are interchangeable b/w front and rear, but if they are, 350f/400r would be decent start. That and a rather large rear sway bar will help you decrese that massive understeer.

Remember the higher the rear spring rate, the rougher your ride will feel. Also, koni doesn't recommend anything above 400lb springs on the shocks, but people always run higher. You will eventually blow them out if you run higher, but the cost of revalving is about the cost of new yellows, so for that you could get revalved koni's that can handle up to 1000lb.. springs.

 

thanks man. Will post in that forum.