I am interested in putting eibach springs on my 350 and was wondering if anyone has them on. If so, how has the ride quality changed. Thanks.

 

Their not out yet. I was told mine should be shipping by the end of the week so I will let you know next week how the car rides...

 

Thanx.....I cannot wait to hear yor review.

 

Yep,..not out as of yet!! But I got Sprint springs but will have to use them as Paper Weights because they will lower my Z a little too low on the 19's!Wound't be too bad for Stock wheels but on 19's a little too low!

Guess I'll still have to wait for Eibachs which I'm already waiting on them anyway!

Eibachs will provide then perfect drop on 19's I'm guessin--and was sayin in other threads that it will not even probably be noticable--so I'm eating my own words now!

 

Got some in stock!!

 

What about camber kits? Adding the springs will increase the camber on the wheels (already -1 degree) another degree or so. I'd love to add these springs but don't want to totally F up the suspension. The struts and wheels will wear a bit quicker but wondering if anything else will get screwed. Looked and H&R but they drop too much, I'm gonna go with the Eibach's if all's well with the rest of the suspension.

 

Funny you should ask! Tomorrow (Wed) I am having Eibachs installed @ 10 am thanks to Todd @ Discount Direct.
I will let you know how they look and ride in the next few days. I think they will complete the look I am wanting when coupled with the new Privat Fahren 18/8fr and 18/9rr I installed last week. I have 245/40fr and 275/40rr Nitto 555 Extreme rubber. I like the look and think the little lowering of .8 and 1.2 will be just right.
This is the b4 Eibach shot and I will post after install tho it may take a few days to settle fully. Regards, Jim

 

How's the bounce/chop with the new springs?

 

Just installed tham last night and in one word: "Go get them right now" ( Well, 5 words" I got the Eibach Pro-Kit from discounttiredirect.com (Thanks Todd) for $220 shipped. Installed bya friend for a C note and these things rock. All that ******** bounce is gone. Cornering is much more responsive. The suspension really comes alive with these springs. Kinda pisses me off though that Nissan didn't use progressive springs in the first place. Coulda saved some of us some hassle. Will post pics tomorrow and show a side by side comparison. Later

 

Qbnmissile:

I big concern of mine is poor tire wear. I am watching a number of you feeling good about the Eiback kit and that is reassuring. As you know, 350Z's are having a feather problem. My worry is how is this eibach kit going to improve or make it worst? Did you get your camber adjusted yet?

Jeff

 

ZLAND, those are valid concerns that I looked into before jumping on this bandwagon. As far as the feathering, if I remember correctly, this was a problem with cars built prior to September (19th I think) '03. I haven't had any problems yet with it so I don't expect that the springs will cause this anymore than stock would've. As far as camber, no direct measurement yet (I'll see if the dealer can do this when I get an alignment tomorrow) but from several sources, all independantly agree that the springs (Eibach's) will only add about -1 degree camber. Going with the H&R which have a much moe aggresive drop would probably have a more significant effect on wear. This isn't really enough of a change to cause a horribly noticeable change to tire wear. Do I think I'll get the same tire life now vs. stock; No. But are we talking about a few weeks, months, or years off of tread life, IMHO I think we're only talking about months, though I could be wrong (Time will tell). The short and sweet; these springs really help out with the performance and overall ride of the car. Despite "tightening" the suspension in corners and aggresive driving, the car is so much more comfortable and smooth to drive on the highway and around town (No ********, neither!!!). It completely gets rid of that crappy "porpoising" or "bouncing" everyone's been writing about. My 2 pennies worth

 

Put mine on today. Ride is better on smaller bumps, but mildly more harsh on larger ones. Overall, I like the ride. I have 4500mi on a pre-Sept. car (if there is any difference). I did take measurements.
Ride Hieght Stock (after some settle with 4500mi) inches
center of wheel and inside wheel well
LF 14 3/8 RF 14 5/8 (note the lower # at highest wieght corner)
LR 14 3/4 RR 14 3/4

w/Eibach
LF 13 1/2 RF 13 5/8
LR 13 5/8 RR 13 5/8
These might settle more in time, but my others did not settle much. It does look good.

Camber
Stock (again after settle of about 1/2 deg from new)
Fnt 1.5 Rr 2.5

w/Eibach
Fnt 2 Rr 3

The camber is of concern. This is quite aggressive and larger than on some race cars.

Driving impressions: Still have not driven too much, but I like the feel. I have experienced mostly oversteer and definitly have more understeer now. I am running 17x8.5 wheels with 255/40 frt and 275/40 rr Yokahoma race compound. Dive and squat are less as well as sway. I particullay noticed that on a hard corner exit, the squat into the outside rear is much less. I can get a great deal of torque to the ground with these tires.

For those who drive the car mostly straight on the freeway, I believe the camber will eat tires. But for those of us who mostly wear the tire in corners, the camber and lower stance is great.

I have not re-aligned, but I will check it tomorrow and set toe (the only thing adjustable) to zero, although I did not feel much toe.

Let me know if your shop needs to adjust much, assuming they will tell you.

 

1. Please educated me, can the camber be adjusted on ft and rear of a Z?
2. If yes, then I assume the wear is the same since it is correct at that point?
3. If camber can be adjusted, what is the estimated cost for something like this?

Thanks, I am learning. My 265/295 Toyo proxies cost me just under $1000 bucks, i would rather ask questions now instead of after they are ruined..Jeff

 

There is no camber adjustment on a stock Z as there is on a Miata or Vette. You must use after market parts that either have eccentric cams where the A arms attach (stock on my Miata) or new A arms. I do not know if eccentric cams will work on the Z and I have heard nothing that there are any now or will be. There are arms available (expensive) to adjust the rear. I have not seen any for the front, but I am sure they will show up. Avalon Racing has some stuff and you might call them.

I aligned the car today. It took about 1/2 hour. The front was toed out 1/4 inch after the drop which took 1/2 turn unscrew on both sides to get 0 toe. The rear was right at 0. I liked the 1/4 inch out as I am an old autocrosser, but the tire wear would be unacceptable with this much camber (the inside of the tire would melt quickly).

 

Check 350EVO.com. They have front and rear adjustable arms. No cost listed. I intend to call, but I do not think we can talk about prices here.

 

do those arms allow for caster adjustment as well??

 

The cams do on my Miata. I do not know how the 350evo arms are adjustable, but my guess is that they use cams and therefore should adjust castor. Call 350evo. Avolon does not list any arms only camber plates that can not work on a Z with its wishbone set-up, but they claim on some threads to have some arms.

 

I have the Eibach Springs on as well and let me tell you they made a world of difference for the handling of the car. It still has some understeer, but it's not as bad as it was when the car was stock. I'd say what will help this car out most is an upgraded swaybar kit and some Energy Suspension bushings. I had e-mailed Energy Suspension if they are working on a kit for the Z and they replied that they are working on one, but when it comes out no one knows for sure.

However, I highly recommend the springs. For $220, it's money well spent.

 

I am in my third week w/Eibachs and this shot shows the final settling, which, btw, was minimal. The handling is much improved and the famed "porpoising" is gone. Regards, Jim

 

Seems like dropping the Z is the way to go especially with Eibachs. Has anyone used the H&R springs. What do you think of a 1.5" drop. Would that be too extreme for daily driving and better yet being able to get the car on a lift when getting serviced.