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Discussion Starter #1
Trying to emulate the Nismo S-tune spring rate bias of 12.5% stiffer to the rear without dropping the car any more than I have to.

So far I concluded that Tein H-tech coils in the front and Tein S-tech coils in the rear will accomplish this. Unfortunatly the S-tech is a 14mm drop at the rear and I will have to shim the ride hight 7mm to keep a consistent drop.

So I am wanting to know if G35 coupe coils will fit a 350z? I know putting 350z coils on a G35C will drop it an additional 1/2". Is it safe to say that it will be the opposite effect?
 

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It's safe to say you may be a long time waiting for an answer. I bet nobody has tried using G35C springs in the rear of their Z33, since raising the ride height has never been a common goal.


Beyond that, why not look for a spacer to raise your rear spring slightly, if you want a higher ride height?
 

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Discussion Starter #3 (Edited)
That's what I gathered. Most people are concerned with slamming the car and making everything "flush". I don't care about that. Suspension tuning/geometry for the ultimate goal of performance! That blows my hair back :).

I guess my original plan will have to do.

Nismo S-tune suspension was tuned for the lighter '03 to '05 car, which I have. It's also been publicized that you can pull over 1g on the skid pad in these cars when S-tune suspension and stiffer sways are installed... oh, equal width tires all around too.

The S-tune spring rates measured at the wheels are 3.79 kg/mm (212 lbs/in) all around. Breaking out the geometry calculator the same can be achieved by using Tein H-tech front coils at 6.4 kg/mm (359 lbs/in) and Tein S-tech rear coils at 7.2 kg/mm (403 lbs/in). This will give me a wheel rate of 3.05 kg/mm (171 lbs/in) in the front, and 3.04 kg/mm (170 lbs/in) in the rear. Not to bad for an off the shelf part
 

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Discussion Starter #4
Beyond that, why not look for a spacer to raise your rear spring slightly, if you want a higher ride height?
Where can find the proper spacers? I need to make up 7mm of lost ride height and would prefer to split the spacers at 4mm top and 3mm at the bottom of the coil.

Now to find proper struts/shocks for this set-up. Not to sure about adjustable yet.
 
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