Notices
Brakes & Suspension 350Z stoppers, coils, shocks/dampers

Twisted chassis? Poor spring installation? opinions

Thread Tools
 
Search this Thread
 
Old May 25, 2006 | 03:50 PM
  #1  
tienlo's Avatar
tienlo
Thread Starter
New Member
 
Joined: Mar 2005
Posts: 705
Likes: 0
From: Australia
Default Twisted chassis? Poor spring installation? opinions

Heya, I've just realised that my car sits a few millemetres (approx 1/4 inch) higher on the Left Front and Rear Right (ie opposite corners). I'm simply measuring the distance from the center of the wheel to the top of the wheel arch. It's quite noticeable too when you look at the gap between the top of the wheel arch and the top of the tyre.

I've put Trust Dowmax progressive springs in the car and sway-bars. Wheel alignment has never been a problem, with equal camber / toe / caster on both sides of the car. I'm not aware of the car being in any crashes but i did buy it as a demo vehicle with approx 8000 miles. The car drives fine. It's RHD because i'm in australia.

I'm also aware that some brands of lowered springs are intentionally 5mm or so taller on the driver's side to compensate for weight.

So... what do you guys think? Is this normal? Is my chassis twisted? or do you think it's something fixable eg re-installing springs / sways etc.
Reply
Old May 25, 2006 | 03:52 PM
  #2  
sq40's Avatar
sq40
Registered User
iTrader: (4)
 
Joined: Apr 2004
Posts: 5,587
Likes: 4
From: Charlotte, NC
Default

Are you sure the Ground is Level?
Reply
Old May 25, 2006 | 05:11 PM
  #3  
tienlo's Avatar
tienlo
Thread Starter
New Member
 
Joined: Mar 2005
Posts: 705
Likes: 0
From: Australia
Default

Originally Posted by sq40
Are you sure the Ground is Level?
definitely. I've measured it several times with the car in flat concrete garage, with the car positioned in all directions (because i thought that might be the problem) and the result is the same.
Reply
Old May 25, 2006 | 05:19 PM
  #4  
Driver06's Avatar
Driver06
Registered User
iTrader: (4)
 
Joined: Jan 2006
Posts: 241
Likes: 0
From: NY
Default

I doubt your chassis is twisted, but anything is possible.
Did you make sure that your springs are sitting properly in the cups?
Reply
Old May 25, 2006 | 05:39 PM
  #5  
sq40's Avatar
sq40
Registered User
iTrader: (4)
 
Joined: Apr 2004
Posts: 5,587
Likes: 4
From: Charlotte, NC
Default

One of Ubermench's Girls didn't flop down in your seat did she?






Really though, I would have all of components checked out, sometimes they forget a bushing or two.. How long have you had the mods? Maybe they need to "Settle".
Reply
Old May 27, 2006 | 06:19 AM
  #6  
Gsedan35's Avatar
Gsedan35
New Member
iTrader: (10)
 
Joined: Mar 2003
Posts: 3,121
Likes: 7
From: Central California
Default

Looking at Z's and G's over time, where owner's have actually tape measured their ride heights. It is common to see such a differance in ride height in. On the whole, the rear is far more likely to be where the differance is seen and generally it is usually limited to one corner. Can't really say I've heard of a whole side being higher.

If a spring system is using differing drop amounts to effect corner weights, in the absense of the car being on corner scales at the time of install,.....how on earth do you know where to make a adjustment? I'd like to read how that brand sell's that type of idea.
Reply
Old May 28, 2006 | 08:36 AM
  #7  
Z1 Performance's Avatar
Z1 Performance
Former Sponsor
iTrader: (564)
 
Joined: Feb 2003
Posts: 19,266
Likes: 5
From: Long Island, New York
Default

unless your car was t boned by a dump truck, the chassis is fine

it is totally normal for a car with aftermarket springs to sit slightly differently front to back and side to side

I have never heard of a spring intentionally being higher on the driver side to account for driver weight...that makes zero sense
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
XM 1
Engine & Drivetrain
29
Jul 10, 2022 07:44 AM
Lt_Ballzacki
Brakes & Suspension
39
Aug 6, 2021 06:19 AM
MM'08_350Z
VQ35HR
225
Apr 22, 2021 09:42 PM




All times are GMT -8. The time now is 05:35 PM.