Getting ready to do some maintenance on my 07 g35 S and figured now would be a good time to think about lowering options. Need to replace some front end parts and will be needing an alignment anyway, so I'd like to lower it about 1 inch in the cheapest way possible. I've heard of people using 350z coils, but I'm finding mixed things on this.

My question is this - what are my options for lowering using either oem coils off a Z, or swift springs, eibachs etc. I do not want to have to buy camber kits or anything like that. Let me know what you all think. Thanks

 

Come on guys, I know someone here knows of this or has done it!

 

350Z/370Z coils are going to give you around a 3/4 drop yes. You will probably want to shave down the rear spring perch upper bumper cone rubber thingy to level out the rear because it will be sitting a bit higher in the rear than the front.

I'll see if I can dig up more info, I know there was a good thread with actual measurements instead of just my hazy memory.

EDIT: Ohhh and 370Z springs are a bit tighter than the 350Z revised ones. I'm thinking about trying a pair on my V35 coupe as well.

 

Here you go, found it quick.

https://g35driver.com/forums/v36-bra...eriment-4.html

 

how would the camber be on the 370z coils? Would I still be able to get it close to or within spec?

 

You'll need a camber adjustment kit (upper control arms, rear bars, and toe bolts) to get it within spec for ANY amount of drop, even 1/4". The front stock stuff is 100% non adjustable, the rear has absolute minimal factory adjustment.

 

ok so if I did 370z coils in the front, approx how far out of spec would the camber be? And would this cause concern for excessive tire wear?

as for the rear, with only a half inch drop from trimming the coil seat, is there not enough adjustment out of the factory components to compensate for this? I don�t mind spending the money and doing it right, I just don�t want to buy anything I don�t need

 

You'll probably be -2.5 to -3 on the front with 370Z springs. I would strongly recommend using a complete set of springs and not just keeping the existing rears and trimming the perch. Reason being it's going to feel firm in the front and soft in the rear and will probably ride badly.

Lowering these cars is common, almost everyone uses adjustable FUCA front, adjustable camber arms and SPC toe bolts in the rear. Doesn't matter if it's just lowering springs or coilovers (not "true" coilovers which replace the rear lower spring bucket).

You can buy a complete kit like this one from Z1 Motorsports that has everything except the springs.

https://www.z1motorsports.com/z1-pro...xoCRVoQAvD_BwE

 

I have a complete Eibach spring kit, and front >adjustable< upper control arms, that I had on my car for years, I looked fabulous, but that was when I was younger, so I saved my old parts and put it back to stock. It rode pretty well in Minn. It was never a daily driver, the lower center of gravity helped it handle real good, and yes you would have to align it, mainly in the back. Once you get the toe straight it never, mine didn't wear out tires, and I avoided all rougher roads and potholes.

 

looking to sell by chance? I�d be interested!

 

Yes, cause the springs are just sitting here, after further review, I only have the Eibach springs, I left the upper control arms on the car, ( because of the camber adjustability) even though these are steel, and the OEM is aluminum. These were SPC brand upper control arms, (Specialty products company)

 

how much for the springs? I�d be interested bc eibach doesn�t make that kit anymore. Does anyone have experience with godspeed upper control arms? They�re the most affordable so not sure on the quality or adjustability??