R3VLimited Forums

Go Back   R3VLimited Forums > E30 Technical Forums > Suspension & Unsprung > Springs, Shocks, Sways & Steering

Reply
 
Thread Tools Search this Thread
Old 10-11-2018, 08:59 PM   #1
Secniv
Noobie
 
Join Date: Nov 2017
Location: New Zealand
Posts: 20
Suspension setup and alignment



Hi guys your advice please. Iím having problems with my suspension setup. Have bilstein shocks and shocks all round.

#1. I rebuilt the rear end with new sub-frame, trailing arm, spring perch and diff bushes. Had a wheel alignment which is giving me neg toe of left 5mm and right 3.5mm.

#2. Front I replaced strut top mounts, spring perch bushes, rear control arm bushes. RH side camber is within spec but LH is -2.25deg. Iíve checked for damage by PO but nothing obvious.




Sent from my iPad using Tapatalk

Last edited by Secniv; 10-15-2018 at 09:59 AM.
Secniv is offline   Reply With Quote
Old 10-13-2018, 02:19 AM   #2
Secniv
Noobie
 
Join Date: Nov 2017
Location: New Zealand
Posts: 20
Been doing some digging. If the cars straight and looks like it is, something must be bent in the front right suspension, strut or shock rod or steering knuckle?


Sent from my iPad using Tapatalk
Secniv is offline   Reply With Quote
Old 10-17-2018, 03:48 PM   #3
AndrewBird
The Mad Scientist
 
AndrewBird's Avatar
 
Join Date: Oct 2003
Location: Portland, OR
Posts: 11,636
Strut tube or control arm is bent most likely. Get another tube from the junk yard and swap out.
__________________
AndrewBird is offline   Reply With Quote
Old 10-22-2018, 10:11 AM   #4
Secniv
Noobie
 
Join Date: Nov 2017
Location: New Zealand
Posts: 20
Quote:
Originally Posted by AndrewBird View Post
Strut tube or control arm is bent most likely. Get another tube from the junk yard and swap out.


I measured LH strut from spring perch to centre of hub carrier and it was 4mm shorter than the RH strut. Doesnít seem much but as you say something is out of true so either try some 2nd hand struts or camber plates.


Sent from my iPad using Tapatalk
Secniv is offline   Reply With Quote
Old 10-24-2018, 03:57 PM   #5
Hellabad
E30 Modder
 
Hellabad's Avatar
 
Join Date: Aug 2008
Location: Nor Cal
Posts: 807
Right strut is hit, and bent in at the bottom.

A shop should be able to tell you this by looking just at those numbers.

If you feel like confirming, measure the gap between the inside of the tire )at the top) and the strut on both sides, and compare.

I am going to guess also that the entire subframe is moved to the left.
__________________
Here is my photo gallery answering common questions about Ground Control Suspension, and e30 suspension problems in general.
Ground Control Gallery

The Ground Control facebook page: Dragged, kicking and screaming into social media to see what happens next.
Ground Control facebook page

Hellabad is offline   Reply With Quote
Old 10-28-2018, 10:18 AM   #6
Secniv
Noobie
 
Join Date: Nov 2017
Location: New Zealand
Posts: 20
Quote:
Originally Posted by Hellabad View Post
Right strut is hit, and bent in at the bottom.

A shop should be able to tell you this by looking just at those numbers.

If you feel like confirming, measure the gap between the inside of the tire )at the top) and the strut on both sides, and compare.

I am going to guess also that the entire subframe is moved to the left.


Thanks for heads up Hellabad. Car on stands at mo will check when wheels back on and on ground. Is there a way I can check sub-frame while itís up?


Sent from my iPad using Tapatalk
Secniv is offline   Reply With Quote
Old 01-05-2019, 06:55 AM   #7
Secniv
Noobie
 
Join Date: Nov 2017
Location: New Zealand
Posts: 20
So in the end..

Rear: I replaced OEM bushes with aftermarket eccentric hardware with poly bushes.


Front: concern around straightening strut and weakening it. Finding a straight 51mm replacement was going to be hit and miss and expensive so went with adjustable camber plates.

Final analysis with a specialist alignment and handles like it should






Sent from my iPad using Tapatalk
Secniv is offline   Reply With Quote
Old 01-11-2019, 03:27 AM   #8
S.J.1981
Noobie
 
S.J.1981's Avatar
 
Join Date: Dec 2018
Location: Germany
Posts: 30
Quote:
Originally Posted by Secniv View Post
So in the end..

Rear: I replaced OEM bushes with aftermarket eccentric hardware with poly bushes.


Front: concern around straightening strut and weakening it. Finding a straight 51mm replacement was going to be hit and miss and expensive so went with adjustable camber plates.

Final analysis with a specialist alignment and handles like it should






Sent from my iPad using Tapatalk
I was considering getting eccentric bolts/washers to get some camber adjustment in the rear, instead of pulling out the RSF and welding in the "proper" camber and toe kit.

Those bolts just drop in place? no extra work?
S.J.1981 is offline   Reply With Quote
Old 01-11-2019, 09:39 AM   #9
Secniv
Noobie
 
Join Date: Nov 2017
Location: New Zealand
Posts: 20
Suspension setup and alignment

Quote:
Originally Posted by S.J.1981 View Post
I was considering getting eccentric bolts/washers to get some camber adjustment in the rear, instead of pulling out the RSF and welding in the "proper" camber and toe kit.



Those bolts just drop in place? no extra work?


Yes pretty straight forward. I set them up to minimise negative toe when putting them in but get an alignment specialist to set-up. Iíll prob check them again in 6 months to make sure they havenít moved.

In New Zealand we have certification rules around modifying suspension parts like using the non OE Ďproperí plates.


Sent from my iPad using Tapatalk

Last edited by Secniv; 01-11-2019 at 06:45 PM.
Secniv is offline   Reply With Quote
Old 01-11-2019, 09:52 AM   #10
S.J.1981
Noobie
 
S.J.1981's Avatar
 
Join Date: Dec 2018
Location: Germany
Posts: 30
Quote:
Originally Posted by Secniv View Post
Yes pretty straight forward. I set them up to minimise negative toe when putting them but get an alignment specialist to set-up. Iíll prob check them again in 6 months to make sure they havenít moved.

In New Zealand we certification rules around modifying suspension parts like using the non OE Ďproperí plates.


Sent from my iPad using Tapatalk
Much appreciated, i am planning on getting a reinforced rear subframe that comes with properly welded in toe/camber bolts/plates before summer.

Just considered a quick and easy way to adjust camber in the rear, when i install the lowering H&R springs, incase the rear camber gets too high.
S.J.1981 is offline   Reply With Quote
Old 01-11-2019, 03:44 PM   #11
AndrewBird
The Mad Scientist
 
AndrewBird's Avatar
 
Join Date: Oct 2003
Location: Portland, OR
Posts: 11,636
Eccentric bolts don't do anything without slotting the holes and adding the adjuster. Do you mean eccentric bushings perhaps?
__________________
AndrewBird is offline   Reply With Quote
Old 01-11-2019, 07:23 PM   #12
Secniv
Noobie
 
Join Date: Nov 2017
Location: New Zealand
Posts: 20
Quote:
Originally Posted by AndrewBird View Post
Eccentric bolts don't do anything without slotting the holes and adding the adjuster. Do you mean eccentric bushings perhaps?


Might be talking cross-purposes as the sleeves and bolt heads are off-set. The bush encompasses the sleeve is concentric. Hopefully the photos shows the off-set of the sleeve.






Sent from my iPad using Tapatalk
Secniv is offline   Reply With Quote
Old 01-12-2019, 02:06 AM   #13
S.J.1981
Noobie
 
S.J.1981's Avatar
 
Join Date: Dec 2018
Location: Germany
Posts: 30
Quote:
Originally Posted by AndrewBird View Post
Eccentric bolts don't do anything without slotting the holes and adding the adjuster. Do you mean eccentric bushings perhaps?
I know what you mean by that, but i am referring to this as a "quick rear camber" adjustment before taking the whole SF off and getting toe/camber kit welded:

https://epytec.de/en/chassis/camber-...ber-adjustment
S.J.1981 is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -7. The time now is 12:38 AM.


Powered by vBulletin® Version 3.8.10
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Copyright 2004 - 2020 R3VLimited LLC