Does anyone know if the eibach sportline lowering springs give a smooth ride or do they make the ride quality more sporty? I'm looking to lower my sedan about an inch and a half but keep stability and a smooth ride.

 

go with the pro kit. It has no affect on the ride quality, and it will give you a 1.4inch drop

 

I have sportlines... I think they ride smoother than stock sport springs.

 

what is the drop level on sportline?

How long have u had? Have shocks held up?

jon!

 

Their will alway's be a trade off between ride quality and car feel/performance when going with lowering springs that are progressive, the higher the spread between inital rates and final rates the greater the trade off. If you want a "sporty feel", install Tein S-tech's ment for the 350Z with Tokico D-specs, you'll get your aggressive drop at 1.7"/1.6" and much better spring rate specs, that's "IF" your into performance. Dropping 1.6" on oem sedan shocks is not a good idea because of the loss of shock piston stoke.

Eibach G35 Sedan sportline progressive springs 1.6"/1.6" drop
F: 171/400 R: 285-502


Tein S-tech 350Z springs .7“.6“ (fronts are slightly progressive, rears are linear)
Spring rates in LBS 386/402 (estimated front intial rate is 327lbs)
Drop on G35 sedan 1.7"/1.6"

Eibach G35 Sedan 1.1”/1.1”
Spring rates in LBS initial/final front 259/334 initial/final rear 359/416
The sedan Pro-Kits were developed on a non sport sedan, they did not use a sport suspended car to do the R&D work.

 

thanks for the info

If we are not going to be doing autocross, can the sportline or tein spec S sedan version ride longterm on stock (sport) shocks without blowing them?

i have heard this but im a bit skeptical, on any other car i have owned dropping and stock shocks would blow inside of 3-6 months

jon!

 

It really isn't about getting the car autocross or track ready.

What do you want out of the car once the parts are installed?

Both springs have drop amounts that will get you into shock piston stroke issues and the peak spring rates on the sportlines are more then what should be run on oem sport shocks. So, I'm even more skepical then you I'd say. I highly recommend that as a low cost solution that you either make a spring choice that doesn't drop as much or that you add on a set of oem 2005/2006 350Z shocks, you'll get shocks that are 3/4" shorter in body/piston rod lengths and better dampning for the Sportlines peak spring rates.

 

I completely agree with Gsedan35. I took his advice a while back and swapped my Sport suspension for a set of brand new 2005 OEM 350Z struts and springs - got a great deal too. The ride is great - not too firm, but definitely more sporty than the Sport setup. The drop looks great too, really great IMO. My advice is to take Gsedan35's advice - he's our resident suspension Wizard!