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964 / 993 Control Arm Bushings

 
Old 04-14-2008, 09:12 PM
  #136  
axl911
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I just finished replacing the bushings. This REALLY helped tighten up the steering and feel of the car! This is a definite must do mod.

However, it took me over 10 hours to do this job.
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Old 04-14-2008, 11:45 PM
  #137  
Ritter v4.0
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I was among the first to buy and will probably be last to install.
Is there a write up somewhere in these 10 pages. On a scale of 1 to 10 in diffculty, where does this rank?
Is 10 hrs representative? If so, I'd have to double that.
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Old 04-14-2008, 11:58 PM
  #138  
chris walrod
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Originally Posted by Ritter View Post
Is there a write up somewhere in these 10 pages.
Hi David, here is a link to the DIY guide.
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Old 04-15-2008, 12:03 AM
  #139  
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Cheers.
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Old 04-23-2008, 10:54 AM
  #140  
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I installed these bushings over the weekend. They are a big improvement. My car has 65K miles and the factory bushings were worn. The front end is much more composed, focused and has a tighter feel. Prior to installing I believed my front shocks were shot. The front end had an unsettled characteristic going through tight turns. It also bounced (i.e. pogo stick) after going over small dips or bumps at parking lot speeds. After this upgrade, the bad characteristics were eliminated. This is a great upgrade with tremendous value. Highly recommended. Thanks Chris!
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Old 04-23-2008, 11:31 AM
  #141  
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How long did it take you?
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Old 04-23-2008, 11:54 AM
  #142  
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Mine took maybe 3-4 hours but I took my time and cleaned the arms up really good. I am going to help Cincy Ron do his and Im thinking I can do it in 2.
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Old 04-23-2008, 12:39 PM
  #143  
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5-6 hours. The second arm went faster than the first.
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Old 04-23-2008, 01:27 PM
  #144  
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From 2 to 5-6 hrs is quite a delta. Someone earlier said almost 10 hrs.
Must be beer breaks in there.
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Old 04-23-2008, 02:10 PM
  #145  
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Took me probably 3-4 hours total. If I did it again, it would go much faster.
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Old 04-24-2008, 01:44 AM
  #146  
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anymore of these bushings for sale I will need a set
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Old 04-24-2008, 02:36 AM
  #147  
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Originally Posted by sptschoice View Post
anymore of these bushings for sale I will need a set
Yes, they are available. I replied to your email this afternoon but it bounced back. I resent it just a few minutes ago. PM me if you dont receive it.
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Old 04-24-2008, 06:55 AM
  #148  
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Chris
I just waded through all the posts to see if there was any tecchy type stuff comparing performance of your bushings compared to stock ?

I have a Porsche retrofit kit on my tt which is basically what was fitted to the 450PS 993 turbo S in Europe. The kit was developed by Weissach and contains lots of bits including new track control arms. The TC arms in the kits according to the part numbers are from the 993 Carrera RS ie 993 341 017 80 etc

My question is: Firstly I am presuming the only difference between the RS arms and the stock arms are the type of rubber used and then secondly how does your material compare to stock rubber and/or the RS type rubber ?

Are there any ways of measuring this to put it into numbers ?

Cheers
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Old 04-24-2008, 11:25 AM
  #149  
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Originally Posted by TB993tt View Post
Chris
I just waded through all the posts to see if there was any tecchy type stuff comparing performance of your bushings compared to stock ?

I have a Porsche retrofit kit on my tt which is basically what was fitted to the 450PS 993 turbo S in Europe. The kit was developed by Weissach and contains lots of bits including new track control arms. The TC arms in the kits according to the part numbers are from the 993 Carrera RS ie 993 341 017 80 etc

My question is: Firstly I am presuming the only difference between the RS arms and the stock arms are the type of rubber used and then secondly how does your material compare to stock rubber and/or the RS type rubber ?

Are there any ways of measuring this to put it into numbers ?

Cheers
One way would be to determine the durometer reading of your rubber bushings and compare it to the durometer reading of urethane. Urethane is much greater in stiffness.

The real difference being the urethane bushing (forward position) is solid whereas the factory forward bushing is what is termed a 'cavitiy bushing'. Cavity bushings are often times used in motormounts since they are designed to be more compliant, or offer more movement, in one axis, stiffer in the other two.

In the case of the 993 front lower control arm, because of where the cavities are located within the bushing, the movement is designed to be in the Y direction. X being longitudinal, Z being vertical.

Y axis deflection allows front toe and caster changes as the bushing deflects (car hits pot holes as an example). As designed these rubber bushings are fine but as the age, they crack, degrade, and begin to tear away from their steel outer sleeves. This is where the random steering wheel wobble and brake judder comes from. Of course, there are other sources of these wobbles and judders.

I will measure the durometer reading of the standard rubber bushings and report back.
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Old 04-24-2008, 11:34 AM
  #150  
RallyJon
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X being longitudinal
You mean axial? So with stock bushings the A-arm is allowed to move left and right, but not forward and backward or up and down?
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