Nissan 370Z Tech Forums banner

1 - 20 of 21 Posts

·
Registered
Joined
·
15 Posts
Discussion Starter #1
I was planning on buying some new lowering springs for my '05 Base. Can I get away with just replacing the springs with the Eibach Pro-Kit, or will I need to replace my struts also. I want to improve handling, not sacrifice it.
 

·
Registered
Joined
·
543 Posts
You can replace just the springs.

You can also replace the struts if you want... my understanding is upgraded struts would give you a firmer (or adjustable) ride. Springs will, for the most part, give you a lower ride, and if the springs are stiffer, then the ride will be stiffer as well.

I plan on doing springs only soon... struts are pretty expensive... (when compared to springs only).
 

·
Premium Member
Joined
·
17,697 Posts
You only have to replace the springs. It will improve your ride quality over bumps and your handling through turns, as well as giving you a better stance.

I definitely reccomend this mod for you.

If you have any questions, ask away. I'm sure I'll be able to answer them for you.
 

·
Registered
Joined
·
543 Posts
I would like to chime in here and ask a question...

How do springs effect feathering?

Has anyone had feathering WITH springs?

I suppose, if I got springs, and had feathering, I could remove them if I needed warranty work... Also, CAN it be aligned correctly with 1" Eibachs?

My concern is taking it in for warranty and catching crap from Nissan about lowering it.
 

·
Premium Member
Joined
·
17,697 Posts
It WILL void your warranty on your feathering issue.

However, it has been said (I don't have enough miles to reassure this) that progressive lowering springs will correct your issue.

My Eibachs were not aligned within specs. However, they are sooooo close that I have a 95% chance of never seeing any wear on the inside of the tires. You can buy camber kits and such to fix this, but a little negative camber is good for the track anyways, so.... I'm not going to waste my money :)

Any more questions?
 

·
Registered
Joined
·
543 Posts
Will it void the warranty if I put the OEM springs back on IF I detect feathering?

I dont intend to screw Nissan... but here is a dilemma...

I would like to use th springs to try and eliminate feathering, but in an attempt to do so, I could be screwing myself by voiding the warranty.

However, Nissan does not know if and when I am putting on slowering springs, so if I bring it into them with OEM springs and a clear case of feathering, shouldnt it be covered under warranty?

Also, I would not try for warranty coverage for uneven wear due to misalignment, only feathering, wihch are clearly different, right?
 

·
Registered
Joined
·
785 Posts
You mentioned you wanted to fix your cars handling, the springs will only go so far to fix this. When you lower the car, the oem shocks will have to work harder & becuase they are now compressed (because they have been forced into this constant state due to the springs) the ride may be firmer even though the spring rates might be lower than stock.
I would recommend getting adjustable swaybars to fix 'handling', best bang for your buck suspension mod, & springs with shocks for the ride or even just springs first and see how you go!
 

·
Premium Member
Joined
·
17,697 Posts
Correct Zboy...they'll never know.

mickyboy- I have been told that the stock shocks work great with just a 1" progressive drop and there isn't a big need to change them. If you hear otherwise, please let me know.

I'm no suspension expert...I've just read a couple of threads, so if anyone has anything to add, feel free.
 

·
Registered
Joined
·
785 Posts
The oem shocks will probably last longer than most of us will own the cars! However, the ride quality decreases the lower you go.
Anything over 1" (some say even less drop than that) & camber issues come into effect.
Just get a regular alignment from a good shop to keep incheck.
My ride quality is about the same as stock with the Hotchkis springs.
 

·
Premium Member
Joined
·
17,697 Posts
My ride quality is actually a little bit better. The Eibachs took out some of the bounce on the interstate.

I also reccomend having regular alignments to make sure you're in check.
 

·
Registered
Joined
·
10 Posts
[/quote]

Study, can you eloborate on swapping out the coil to get a better ride? I've been trying to figure out how to improve my ride w/o lowering the suspension? can you reccomend a very good coil ($$ do not matter to enhance my ride w/o losing performance?) can this be done? any help would be greatly appreciated!
 

·
Registered
Joined
·
5,437 Posts
[/quote]

Study, can you eloborate on swapping out the coil to get a better ride? I've been trying to figure out how to improve my ride w/o lowering the suspension? can you reccomend a very good coil ($$ do not matter to enhance my ride w/o losing performance?) can this be done? any help would be greatly appreciated!
<div align="right">[snapback]86612[/snapback]
[/quote]

Upgraded Shocks would be the way to do this.. like the Tein Adjustables. Ride height stays the same, but you can now change the bound and rebound of the spring setup. Might be the way to go.
 

·
Registered
Joined
·
10 Posts
[/quote]



Study, if I went w/ coils to improve my ride from OEM, which would you recommend? To improve performance and most of all ride quality (bumps), you have my attention...please!

Thanks


Study, SORRY, I missed the thread above! Which you answered my question...THANKS!

After all the threads I've read and talking to my Nissan dealer (Conrad is a total guru at Nissan Cerritios ibn So Cal), he def. reccomends the Tien with the eEFDC (Sounds like a great system!!).
 

·
Premium Member
Joined
·
17,697 Posts
As long as the springs are "progressive" I don't think it matters. Just buy something that's worth buying. No rip-off brand products.

Eibach is great. Espirit, Tein, JIC...all of them are going to be great. The EDFC is probably a great choice, because you'll be able to adjust your quality from in the car.
 

·
Registered
Joined
·
6 Posts
I have Eibachs on since the 5K miles mark.

At 8500 miles the fronts were unusable due to feathering, replaced.
At 17,xxx miles, fronts replaced again due to feathering...
At 26,500 miles, seems like feathering is coming back.

The Eibachs do NOT solve the feathering issue. They do improve the ride tremendously. I got them to get rid of the "bunny hop" and because maybe they would help with the feathering. I love the ride, the stance, the turns, etc.

The dealer will NOT honor the feathering TSB because of the Eibachs, although they don't cause it or cure it. I got camber arms (front and back) just to make sure I get the car back in spec.

After Eibachs I was very small out of camber front and back. I got Kinetix control arms and fixed both, just so that Nissan can't say it is the camber issue. I then got Toe cam bolts to adjust Toe per the latest TSB.

The only thing left for me is that I have always used "old thread" RE040s. I don't know if I will try new thread ones next time or might just switch to other (harder) tires. We will see.
 
1 - 20 of 21 Posts
Top