370Z springs experiment
Joined: Jan 2004
Posts: 21,095
Likes: 47
From: Toronto, GTA north
Where are you headed???
A long way from you...Calgary.
Although I've been to Toronto before. I lived in Cleveland for a few years and made a trip up there once for a long weekend.
Although I've been to Toronto before. I lived in Cleveland for a few years and made a trip up there once for a long weekend.
Joined: Jan 2004
Posts: 21,095
Likes: 47
From: Toronto, GTA north
..if you have time you should touch base with Swivelnips, he's in Cowtown
Well, I got the springs installed and 5/8" shaved off the rear spring mounts. The front looks perfect...I really like it, but I would like the rear about 1/4" lower. Anyway, now I'm in Calgary and it's killing me not to have my car.
Hey Ian, did you notice any settling of the springs when compared to initial install vs. couple months later?
Hey Ian, did you notice any settling of the springs when compared to initial install vs. couple months later?
Joined: Jan 2004
Posts: 21,095
Likes: 47
From: Toronto, GTA north
not really, but mine were used springs.
...I debated taking a bit more off the back as well.
It looks pretty good with a full tank, but a tad high after 1/2 tank.
...I debated taking a bit more off the back as well.
It looks pretty good with a full tank, but a tad high after 1/2 tank.
Joined: Jan 2004
Posts: 21,095
Likes: 47
From: Toronto, GTA north
...I think you could probably go to 3/4" for sure.
& maybe to 7/8"
Registered User
Joined: Jun 2009
Posts: 18
Likes: 0
Ya that's right.... I have scored a set of 370Z springs to test with 
Plans:
I'm trying to line up a test facility to give me some actual spring rates for he G & Z
Then it's a test fit for drop.
This may prove to be a completely worthless experiment, but my hopes are:
1. Knowing that the Z is a lighter car than the G, it is most likely sprung more aggressively.
result = close to a rate compatible with the OE sedan rate.
2. The drop? ....a complete unknown, but I'm hoping it's similar to what we were doing with 1st gen cars.
(
Plans:
I'm trying to line up a test facility to give me some actual spring rates for he G & Z
Then it's a test fit for drop.
This may prove to be a completely worthless experiment, but my hopes are:
1. Knowing that the Z is a lighter car than the G, it is most likely sprung more aggressively.
result = close to a rate compatible with the OE sedan rate.
2. The drop? ....a complete unknown, but I'm hoping it's similar to what we were doing with 1st gen cars.
(
i am contemplating on putting in the front 370z springs as well, but concern that i'll have to spend money on camber kit, tires, etc. I am going to have to take it to a shop to get the springs installed. Any advise? thanks!
Registered User
Joined: Oct 2008
Posts: 165
Likes: 1
ooooh....this is interesting. Just curious, if you replace just the front springs, wouldn't the spring rate differences between the front(370z springs) and back(G35 stock) causes problems in the long run?
What i am saying is, aren't our front stock springs ratio are designed to be proportional to our back springs' rates? But now you are putting a higher spring rates on the front. wouldn't this mess up the 'engineering' side of things? Please enlighten me b/c i honestly don't know how spring rates on front and back affect each other.
What i am saying is, aren't our front stock springs ratio are designed to be proportional to our back springs' rates? But now you are putting a higher spring rates on the front. wouldn't this mess up the 'engineering' side of things? Please enlighten me b/c i honestly don't know how spring rates on front and back affect each other.