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Bump Steer + RS Uprights

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Old 04-19-2013, 09:39 AM
  #31  
ACEparts_com
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Well, it's all installed along with new brake discs etc. By buying the bearing cover and bolt, new abs sensors and screws it was a really easy swap (for my mechanic). Took less than 4 hours total.

I've also has the alignment set to:
Front camber 1o29' each wheel
Front Toe 0o15' each wheel (toe in) Total toe 30'

Rear camber 1o25'

First impressions are (driving car 100 miles in the rain home), car has much sharper steering, much more precise. Follows my inputs much better. The steering & car is no longer darting about doing it's own thing. It feels like all the noise has been filtered out.

I'll see how it feels on track next week.
Old 04-19-2013, 12:53 PM
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cavlino
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Glad to hear you already notice a positive difference
Old 04-20-2013, 05:23 AM
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Told ya!
Old 04-26-2013, 06:03 AM
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Bullmrkt
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Where can I get rs/gt2 uprights in the US? Sounds like the tie rods are necessary too?

Hm, my pss10 install keeps getting more expensive.
Old 04-27-2013, 12:45 PM
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Basal Skull
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Got mine from UMW - Kevin

Originally Posted by Bullmrkt
Where can I get rs/gt2 uprights in the US? Sounds like the tie rods are necessary too?

Hm, my pss10 install keeps getting more expensive.
Old 04-27-2013, 12:58 PM
  #36  
Bullmrkt
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Originally Posted by Basal Skull
Got mine from UMW - Kevin
Excuse the ignorance but what is UMW? Thanks.
Old 04-27-2013, 01:35 PM
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UMW = Ultimate motor works - sells turbos and wot nots.

They're available from any porsche dealer (in the UK they are anyways!)

Best of luck.
Old 05-05-2013, 06:03 PM
  #38  
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Well. first track day is behind me. The only work done on the car has been the RS uprights and a tiny bit more camber up front.

The car is MUCH less inclined to understeer now. Much more of a difference than I can imagine 1/6th of a degree of extra front camber can give. I was wondering if the hubs altered other geometry such as additional camber when the wheels are turned?

Most impressed. Just a nice evenly balanced car.
Old 05-05-2013, 06:05 PM
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I will add. Trail braking of any sort would result in the back coming around quite quickly! Before I had to carry the brakes on initial turn in to keep the nose tucked in.
Old 06-09-2016, 09:50 PM
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DRPM
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Mine is lowered with PSs10's and suffering bump steer etc
I see Carnewal has a kit with Walrod bushings.
Is there another source in the USA?
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Old 06-10-2016, 12:12 AM
  #41  
OverBoosted28
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I got my uprights/tie rods from Sunset.
Old 08-18-2016, 07:01 PM
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MarinS4
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Originally Posted by ACEparts_com
Well. first track day is behind me. The only work done on the car has been the RS uprights and a tiny bit more camber up front.

The car is MUCH less inclined to understeer now. Much more of a difference than I can imagine 1/6th of a degree of extra front camber can give. I was wondering if the hubs altered other geometry such as additional camber when the wheels are turned?

Most impressed. Just a nice evenly balanced car.
I have followed many of the RS upright threads and most seems to miss the fact the uprights correct the lower control arm angle as well as the tie rod angles. The kit is touted for it's bump steer correction (which it does nicely) but the other big bonus is correcting the lower control arm angle and camber curve. On a strut type car when you lower it too much you end up with camber losses as the arm works through it's range of motion. With correct control arm angles you get some camber gain in the initial portion of the curve.

Having played with several strut based race cars over the past few year I can say correcting the lower control arm angles has a profound effect on front end grip. It has solved many under steering problems we've have had on race cars.

Last edited by MarinS4; 08-27-2016 at 08:48 AM.
Old 08-19-2016, 05:53 PM
  #43  
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Originally Posted by MarinS4
I have followed many of the RS upright threads and most seems to miss the fact the uprights correct the lower control arm angle as well as the tie rod angles. The kit is touted for it's bump steer correction (which it does nicely) but the other big bonus is correcting the lower control arm angle and camber curve. On a strut type car when you lower it too much you end up with camber losses as the arm works through it's range of motion. With correct control arm angles you get some camber gain in the initial portion of the curve.

Having played with several strut based race cars over the past few year I can say correcting the lower control arm angles has a profound effect on front end grip. It has solved many under steering problems we have had on race cars.
I'm a sensitive kind of guy
Old 08-21-2016, 08:48 PM
  #44  
C4Spolar
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Got my factory uprights/tie rods from SSF in California at a very decent price.

Contact Joe @ SSF.

Originally Posted by DRPM
Mine is lowered with PSs10's and suffering bump steer etc
I see Carnewal has a kit with Walrod bushings.
Is there another source in the USA?
Old 08-21-2016, 10:49 PM
  #45  
MarinS4
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Originally Posted by C4Spolar
Got my factory uprights/tie rods from SSF in California at a very decent price.

Contact Joe @ SSF.
Grab em wherever you can. They are on world wide back order right now. I was told by Steve W Porsche Motorsports plans on making em again. It's hard to believe Porsche will continue to make such a part on a 20 year old car though. Just glad I got my hands on set!


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