I copied the info below from the Sticky.

"Any aftermarket 350Z spring will lower a coupe a additional ½” over and beyond the published drop amount for the 350Z. For sedan owners, the same applies to you, except you will gain a additional 1”, not just ½”."

Eibach 350Z progressive springs 1”/1” drop* on 350Z G35 drops will be higher (*higher amounts common)
Spring rates in LBS initial/final front 296/384 initial/final rear 316/421
F +22% R +23% (looking at peak rates only)

I’m torn because I like the appearance of the Eibach Sportline but prefer the ride of the Pro. Carting my 3 year old boy. From the above info, I should get a 2” drop in both the front and rear. This should leave ½” clearance on both front and rear. Is that enough? Has anyone done this? Any pics?

Thanks.

With that kind of drop; Be prepared for camber issues etc...

I have the eibach pro kit for G35 sedan which gave me the advertised drop. not too low, just right

How much clearance do you have from the tire to the fender, front and rear?

Thanks. Nice pic!

Prokit is the perfect drop, IMO. It will drop you just enough to get rid of that ugly fender gap...but you won't have to deal with getting a camber kit, new shocks, scraping all over the place. On the prokit you still have to be careful on some steep driveways and speedbumps, but the sportline I guarantee you will be scraping nonstop.

....as long as it's the sedan kit.
The original ? was about Z kit on his sedan, which would be extreme.

Oops, ya I meant the Sedan prokit...Z kit is going to be way too low.

Would I need a camber kit with the Eibach Sportlines?

Thanks.

Thanks for the input. The Pro's are just not going to do it for me. I'm looking for about another .5" drop - total of 1.5 on both the front and rear. Ride quality is the question now. Are the Tein S more like the sportlines or pros in ride quality?

Thanks.

Neither, G35 S-tech's will be softer then both. Here are some other choices factoring in the drop you want and the ride quality you want.

Tanabe NF210 Springs G35 COUPE progressive springs 1”/,6” drop on G35 coupe G35 sedan drop will be higher
Spring rates in LBS 297/336
Softer then oem springs by F-5% R-2%
Transfers +3% roll stiffness to front

IMO, these would be the best (their's a set for sale in the classified section here btw).

Hotchkis 350Z Linear springs .6”/.8” drop on 350Z G35 drops will be higher
Spring rates in lbs 340/330
Stiffer or softer then oem springs by F+8% R-3% (see note at very top)
Transfers +12% roll stiffness to front

Because of the drop you want to be happy, you are talking about whole car front camber correction and rear camber/toe correction. If your sedan is not equipped with the sport suspension, invest in better shocks such as Tokico D-specs. D-specs are of course better then sport shocks too just to say it.

Pretty sure he's looking for 1.5" drop on a sedan...
the Tanabe will drop him more than 2"...

Am I correct in assuming if I drop this thing anymore than 1 inch I will need a camber adjustment?

Thanks.

Opps, your absolutely correct, I'm going to edit my post now. Thanks for catching that.

All 3 FM platform varient's have different alignment specs. When dropped on oem Z springs 1" my sedan is out of oem sedan specs, and close to oem coupe specs, and being performance minded I'm fine with those specs. At a 1.5" drop, you will need aftermaket parts to bring the car back to spec. And avoiding the cost's involved isn't really avoiding them at all,..........tires aren't free pay now or pay more all the time because of reduced tire life.

Thanks for the info.