Notices
944 Turbo and Turbo-S Forum 1982-1991
Sponsored by:
Sponsored by: Clore Automotive

Handling/Suspension issue????

Thread Tools
 
Search this Thread
 
Old 08-13-2006, 04:37 PM
  #31  
toddk911
Drive-by provocation guy
Rennlist Member
Thread Starter
 
toddk911's Avatar
 
Join Date: Apr 2002
Location: NAS PAX River, by way of Orlando
Posts: 10,439
Likes: 0
Received 0 Likes on 0 Posts
Default

See recent alingment results. Some they could not get into spec, but is this enough to greatly effect the feel/handling?
Attached Images  
Old 08-13-2006, 08:29 PM
  #32  
chris951
Rennlist Member
 
chris951's Avatar
 
Join Date: Jan 2004
Location: amarillo
Posts: 1,109
Likes: 0
Received 2 Likes on 2 Posts
Default

it sounds like a strut/rebound problem if it is "floaty" at highway speeds.
Old 08-14-2006, 09:53 AM
  #33  
toddk911
Drive-by provocation guy
Rennlist Member
Thread Starter
 
toddk911's Avatar
 
Join Date: Apr 2002
Location: NAS PAX River, by way of Orlando
Posts: 10,439
Likes: 0
Received 0 Likes on 0 Posts
Default

That's what I am thinking but wouldn't it be even worse in the corners or turns? As it feels pretty solid when hard turning or corners. Only in the straights it feels floaty.

Could it be the strut bushing/bearing? the large rubber piece a top each strut.

Anyone have a pic of a newer or solid looking strut bushing??
Old 08-14-2006, 11:20 AM
  #34  
JPR
Racer
 
JPR's Avatar
 
Join Date: Aug 2002
Location: Miami, Fla.
Posts: 404
Likes: 0
Received 0 Likes on 0 Posts
Default

Floaty = low or no spring damping. Change the shocks and look no further. No other suspesion setting or adjustment will solve this. If left unattended, this condition will cause your other suspension components to deteriorate faster making the problem worse. The reason it gets worse as it heats up is that with less fluid inside the blown shock, the remaining fluid has to absorb the heat of the oil throttled thru the shock valve; so it thins out and foams up giving you even less damping.

Jpr
Old 08-14-2006, 11:40 AM
  #35  
toddk911
Drive-by provocation guy
Rennlist Member
Thread Starter
 
toddk911's Avatar
 
Join Date: Apr 2002
Location: NAS PAX River, by way of Orlando
Posts: 10,439
Likes: 0
Received 0 Likes on 0 Posts
Default

AHHHHHHHHHHHHHHH, ok. I was thinking the heat was doing something to the shock fluid.

Are there any other shocks on the market that are alomst as good as Koni/Bilstien, etc. but a little cheaper? Due to newer technolgy.

I have Knoi yellows all around due to the PO, but he was planning to DE the car alot. Mine is a daily driver and might only see a few DE/autocross events here and there.

I ahve always thought of Monroe shocks as el cheapo, but after some research it seems they have some higher end sport shocks now.

Any other choices that would be good for hard street/some DE not as intense as Koni, etc. ?
Old 08-14-2006, 11:45 AM
  #36  
toddk911
Drive-by provocation guy
Rennlist Member
Thread Starter
 
toddk911's Avatar
 
Join Date: Apr 2002
Location: NAS PAX River, by way of Orlando
Posts: 10,439
Likes: 0
Received 0 Likes on 0 Posts
Default

Also, would this be just the fronts or all four?
Old 08-14-2006, 12:50 PM
  #37  
toddk911
Drive-by provocation guy
Rennlist Member
Thread Starter
 
toddk911's Avatar
 
Join Date: Apr 2002
Location: NAS PAX River, by way of Orlando
Posts: 10,439
Likes: 0
Received 0 Likes on 0 Posts
Default

Would I also be experienceing more bump steer?
Old 08-14-2006, 02:43 PM
  #38  
toddk911
Drive-by provocation guy
Rennlist Member
Thread Starter
 
toddk911's Avatar
 
Join Date: Apr 2002
Location: NAS PAX River, by way of Orlando
Posts: 10,439
Likes: 0
Received 0 Likes on 0 Posts
Default

http://www.autopartswarehouse.com/pe...987&partid=329
Old 01-22-2013, 12:15 AM
  #39  
lejams
Pro
 
lejams's Avatar
 
Join Date: Jun 2002
Location: Kihei, Hawaii
Posts: 617
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by toddk911
Well, in the corners it is pretty solid.

In the straights, aboe 50-60mph, it starts to feel real "floaty". Especially if I rake the steering wheel some back and forth.

Almost feels like if I do it a little more or was going a little fast it would go into like a car version of a bike "high speed wabble". Almost like a mild "hydroplane" feel. Again, only at highway speeds. I have not even gotten it up to higher speeds as it would seem to feel like the car would float right off the road.

Also seems to react to every bump or crease in the road. I.e. the steering wheel/wheels will grab to that instead of jsut sucking up the bump so to speak.

Work done:

Both new steering rack bushings. Driver side is Delrin.

Steering rack just changed.

Full 4 wheel alignment.

Now all matching Khumo tires.

Koni adjustable fron struts (7+ years old) but mech said they "seem" ok.
The only issue he noticed was one side the strut "bearing/bushing" on top seems stretched.

Full inspection under the car showed nothing loose or out of spec.

Any suggestions?

Just new shocks? Camber plates?? Strut tower brace???
What was the solution to this problem. I'm experiencing almost verbatim the exact same issue. Tight in the corners, but floaty in straights at 60mph plus. Unlike the 944, at 70mph + it begins to feel unsure and somewhat scary. Everything seems to check out; recent rebuilt yellow adjustable Koni's, new tie rod ends, control arms and ball joints look good, rack looks good, tires and alignment is in check.

With the car turned of and rocking the steering wheel, it's loose enough to note, and in addition, it has sort of a stop knock noise when rocking it too. Sometimes when you run across expansion joints on a driveway, or speed bumps, or even on a gravel road, the steering rattles or clunks a bit. You can hear it and feel it. Just can't follow where/what's causing it. I've had someone sit in the car rocking the wheel while I watched the intermediate shaft, and I cannot identify anything wrong, but it's still suspect. Any thoughts?
Old 03-12-2013, 01:45 PM
  #40  
blade7
Drifting
 
blade7's Avatar
 
Join Date: Dec 2007
Location: England UK
Posts: 2,256
Received 33 Likes on 27 Posts
Default

Got all the undertrays fitted ?.
Old 03-12-2013, 11:35 PM
  #41  
lejams
Pro
 
lejams's Avatar
 
Join Date: Jun 2002
Location: Kihei, Hawaii
Posts: 617
Likes: 0
Received 0 Likes on 0 Posts
Default

I talked with toddk911 and his issue was resolved with an proper alignment. Same for me, a good alignment resolved my problem as well.
Old 03-13-2013, 02:26 PM
  #42  
blade7
Drifting
 
blade7's Avatar
 
Join Date: Dec 2007
Location: England UK
Posts: 2,256
Received 33 Likes on 27 Posts
Default

I took the undertrays off when I changed the belts/rollers, decided to wait until I'd re tensioned the belts before fitting the trays again, at 130+ without the undertrays the front definately felt lighter.
Old 03-13-2013, 11:08 PM
  #43  
Lex_GTX
Racer
 
Lex_GTX's Avatar
 
Join Date: Nov 2010
Location: Surrey, BC
Posts: 271
Received 55 Likes on 16 Posts
Default

Originally Posted by lejams
I talked with toddk911 and his issue was resolved with an proper alignment. Same for me, a good alignment resolved my problem as well.
What were your alignment settings?
Old 03-14-2013, 12:45 AM
  #44  
lejams
Pro
 
lejams's Avatar
 
Join Date: Jun 2002
Location: Kihei, Hawaii
Posts: 617
Likes: 0
Received 0 Likes on 0 Posts
Default

Here you go Attachment 711158

Last edited by lejams; 03-03-2014 at 09:58 PM.
Old 03-14-2013, 01:25 AM
  #45  
Lex_GTX
Racer
 
Lex_GTX's Avatar
 
Join Date: Nov 2010
Location: Surrey, BC
Posts: 271
Received 55 Likes on 16 Posts
Default

Thank you!


Quick Reply: Handling/Suspension issue????



All times are GMT -3. The time now is 05:59 PM.