I was looking at S-tein for my G35 sedan and noticed that the spring rate on the fronts are higher than the rear where as my OEM sport suspension has the high rate in the rear. Is there a difference in handling if I get a higher spring rate in the front instead of the rear. I assume for a rear wheel you would want the higher spring rate in the rear and not the front. Someone please explain and help me out.

 

I think they do this because the engine is in the front, therefore there is more weight in the front.

 

Higher in the front then oem is fine, but softer in the rear then oem,.......I'll pass.

The other thing, a 2" drop on oem sedan shocks is NOT a good idea. Sedan's shocks are 3/4" taller then 350Z shocks. I had issues with Koni's on a 2" drop with springs that were linear and stiffer, plus Koni's are use the same shorter shock height as 350Z shocks. Not enough bump travel (even with much shorter then oem bumpstops).

 

The S-Tein drops the front 1.2" and rear 0.9". So Basically it will level the car gap up, but I did have a concern with the rate in the rear being softer than OEM sport.

 

Iam currently running sport suspension on my sedan. What is the rate on a entry sedan with no sport suspension??

 

+1^

 

I have coupe s-techs on my sedan, and because of the height of the rear spring its much stiffer than the OEM spring that i had. When I sit in the back while my friends are driving i can feel the stiffness of it. I am overall very happy with them combined with 350z shocks and hotckis sways.

 

No they drop a coupe that amount, mounted on a sedan Tein's own spec chart shows how much drop they actually give out on the sedan
2"/1.3"
http://www.tein.com/infiniti.html

 

283/308

Eibach's devolopement car for their sedan prokit springs had the non sport supension.