Welcome to the North American Subaru Impreza Owners Club Thursday September 18, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Click here to visit TireRack
Brakes & Suspension Forum sponsored by The Tire Rack

Losing traction? Need new tires?
Click here to visit the NASIOC Upgrade Garage...
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Brakes, Steering & Suspension

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 01-27-2002, 09:06 PM   #1
Rallyspec
Scooby Specialist
 
Member#: 5967
Join Date: Apr 2001
Location: Olympia, Washington
Default Suspension problems! Back end is unstable. shutters left or right??!!!???

Ok ill give you guys the setup.
I have DMS 50mm rally setup on all four corners accompanied by; STI strut mounts
Cusco front upper strut tower bar
18mm FHI sway bar
Revolutions adjustable control arms

Ok. recently i have been having trouble and perhaps it has been happening ever since i threw on my DMS. but It seems to be getting worse. While driving on the road my back end will shift left and right like there is no traction. mostly happening in the rain. I will be driving straight ahead and ill drive over the marker tape or the road arrows on the ground and the back end will shutter left and right. or going over a manhole itll kick left or right depending where i hit it. It feels like something isnt working well at all. it should be steady and not lose its back end when going straight. Its frightening when going around a corner and i hit some street marker tape. back end shifts really quick. its not oversteer it is just losing ground for a second. like something is broke. but i just reinstalled everything and it looks ok. when you you are driving straight it feels like someone pushes your car from the back side. Its not working together. anyone have this problem?????

I also forgot to put in an important factor. I have an appointment to get an aligment but havent got one yet after reinstalling my dms and putting on the adjustable control arms. Could this be an alignment deal. the toe in the back is messed up? but why would my back end lose control when going over anything slick? both left and right

The front does not do this. only the back loses ground.
The tires are fine also. the lug nuts are torqued properly. bolts are tighen properly also.
Aaron
* Registered users of the site do not see these ads.

Last edited by Rallyspec; 01-27-2002 at 09:13 PM.
Rallyspec is offline   Reply With Quote
Old 01-28-2002, 12:42 AM   #2
Rallyspec
Scooby Specialist
 
Member#: 5967
Join Date: Apr 2001
Location: Olympia, Washington
Default

someone has to know or had this happen to them.
Rallyspec is offline   Reply With Quote
Old 01-28-2002, 01:03 AM   #3
zzyzx
Scooby Specialist
 
Member#: 815
Join Date: Jan 2000
Location: Florida
Vehicle:
2013 Boss 302 White
2000 2.5 RS Coupe Silver

Default

Simple, really. You have a lot of toe out in the rears. The longer you wait to get that alignment done, the more trashed your rear tires will be. Did you also install those "control arms" (lateral links) in the rear? If so your rear toe is definately screwed up.

Curious, why did you install those control arms, anyways?

- Steve
zzyzx is offline   Reply With Quote
Old 01-28-2002, 01:07 AM   #4
wistful
Scooby Specialist
 
Member#: 745
Join Date: Jan 2000
Location: Royal Oak, MI
Vehicle:
2004 STi
Java Black Pearl

Default

It definitely sounds like you have an alignment problem. This happened to me before when I bent my rear crossmember (don't ask). I had to drive around on it for a while, the car was helllla unstable over everything. It would kick out at the most random moments. I drove white-knuckled for those few days. GET it ALIGNED ASAP!!

DoN
wistful is offline   Reply With Quote
Old 01-28-2002, 01:23 AM   #5
suberboy
Scooby Specialist
 
Member#: 1531
Join Date: May 2000
Chapter/Region: RMIC
Location: Salt Lake City, UT
Vehicle:
2008 GRB
Red

Default

Hello,
This is a bit off topic but if you don't mind, what rims and tires are you using on your car, and how close is the tire to the springs?
I'm asking because I installed the DMS 50mm yesterday I couldn't use the Legacy GT rims with 205/55 tires I have because the tires hit the springs in the rear and barely cleared the front. Luckily my stock 14x6 inch rims and tires fit (I have a '93 Impreza wagon). But I really want to get some 17x7 or 7.5 for this summer and I'm worried they won't fit.

Thanks.
suberboy is offline   Reply With Quote
Old 01-28-2002, 03:28 AM   #6
Rallyspec
Scooby Specialist
 
Member#: 5967
Join Date: Apr 2001
Location: Olympia, Washington
Talking

Superboy:
I am glad you said something about that. I too had a problem with the 50's rubbing the perch. i am assuming you are referring to the spring perch and not the spring right? Are you positive they rub. There is only supposed to be about 3mm between the perch and tires. very very minimal. scary almost. I ripped a tire on my spring perch after wrecking. so it is close. If it does rub. you need to check the play in your strut top mount and also the upper bolt that connects the knucle to the strut. If not call Dave Clarke. he will have some suggestion for you.

zzyzx:
I was rallying and ended up jumping a ditch and hitting a mountain head on and then spinning around and landing on my right rear tire. The spring perch ended up ripping my tire. i went down to get a new tire put on and the perch was rubbing the tire. no one could figure out the problem since it was off by a few mm. so i took the powers in my own hand and bought adjustable control arms and trailing arms. it brought my wheel out enough so it is about 3mm away from the tire. that and it would be nice to have something sturdy down there when rallying. And yes i adjusted them and installed them myself so yes i am sure my toe is completely off. i am just waiting for my appointment now.

Aaron
Thanks for the help guys
Rallyspec is offline   Reply With Quote
Old 01-28-2002, 03:33 AM   #7
Rallyspec
Scooby Specialist
 
Member#: 5967
Join Date: Apr 2001
Location: Olympia, Washington
Default

oh by the way i am using my stockers now. 205 55 16. and 17's or 18's would be fine. i would stick with 7 and not 7.5, and if you want to be safe keep the 205 width and not go to 215 or 225 esp. you would get more clearance with a 17. the stock tires bubble out way to far and with 17 the wall is either straight or inverted.
I thought about getting 17's but would miss out on the fun of passing a gravel road. still might do it though.
Aaron
Rallyspec is offline   Reply With Quote
Old 01-28-2002, 01:50 PM   #8
suberboy
Scooby Specialist
 
Member#: 1531
Join Date: May 2000
Chapter/Region: RMIC
Location: Salt Lake City, UT
Vehicle:
2008 GRB
Red

Default

Aaron,
Thanks for the info on the DMS 50's. I am going to go and make some adjustments today and see if I can get enough clearance for the Legacy GT wheels to work. I think I need to use the camber washers they included to take all the camber out or even put negitive camber in and then use the the adjustable control arms to put some camber back in, can I get camber with the control arms or only toe?

Thanks again,
Noah

P.S. the springs were touching but i need to raise the car an inch or two and then i think the perches would be hittting. my car is a bit to low right now. you could say it is in "rice" mode and it should be in "gravel" mode
Attached Images
File Type: gif tire-touching-dms-spring.gif (34.6 KB, 105 views)
suberboy is offline   Reply With Quote
Old 01-28-2002, 01:57 PM   #9
Rallyspec
Scooby Specialist
 
Member#: 5967
Join Date: Apr 2001
Location: Olympia, Washington
Default Yikes!!!

wow thats bad. um. control arms have a lot to do with all of that. have someone at the subaru dealership near you work on it. I had a good 1/4 of an inch on the left rear side and then i threw on the control arms and i only had a few milimeters. very minimal. and yes thats way to low. your perch on a legacy should actually be cresting the tire. must have it slammed. The camber washers help out also. and no you dont want negative camber that would push your wheel in to the spring.
I believ e that is why you have the problem in the first place if you raise it up to stock height then you will get that gap you want. also there wont be neg. camber, and that is what you have now.

Aaron
Rallyspec is offline   Reply With Quote
Old 01-28-2002, 06:13 PM   #10
suberboy
Scooby Specialist
 
Member#: 1531
Join Date: May 2000
Chapter/Region: RMIC
Location: Salt Lake City, UT
Vehicle:
2008 GRB
Red

Default

okay, so I want positive camber, I had the terms messed reversed. If I go with as much positve camber as the camber washers will give me can I then put negitive camber back with the control arms?
The car is really slammed right now (see pic below) it is about a centimeter below the recommended "Tarmac" settings from DMS of 330mm. I will try and remedy that this evening if I can get myself to go and work out in my carport while it is snowing, brrrrrr.
suberboy is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
is the bish going left or right?? brain test INFIDEL Off-Topic 52 09-29-2008 01:36 PM
left or right? right or left? left or right?right or left? rendog24 Off-Topic 2 09-12-2007 07:12 AM
How does one become left or right wing? il96 Political Playground 33 12-17-2004 02:06 PM
Left or right? I can't tell... 4x4GGG Political Playground 1 10-27-2004 12:28 AM
left or right handed? HubCap Off-Topic 19 01-16-2003 10:28 AM


All times are GMT -4. The time now is 07:42 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.