geolab

Tony, for the rear, you could purchase all arms brand new, remember the ball joints, for the price you mentioned.
Here is the set I mothballed

IXLR8

Have you priced the components from Porsche? The Elephant Racing bushings will look like a bargain compared to new front control arms. The ER bushings are made by the company who makes them for Porsche.

One thing I could never figure out is why a company like Porsche who is out to make a profit like any company, would not go with cheaper PU bushings. Actually, why doesn't any manufacturer?

Tony_KB

Thanks for the tip! These are OEM on the picture?

Ed Hughes

And now you've heard from "expert" with no experience in any of these aftermarket products.

NP993

I was an early adopter of the Walrod bushings -- been on my car for five years and 50K miles now. No noise, no squeaks, no complaints. An outstanding product.

Cupcar

My thought FWIW, would be Walrod's in front, new lower RS wishbone for a fresh start on forward bearing and ball joint as well as RS rubber, and Elephant RS rubber bearings in the rest of the rear arms.

Then put these in the Subframe http://www.fvd.de/us/en/Porsche-0/99..._85_Shore.html

Cupcar

Having said the above, I had questions about the Elephant bushings because I noted 2 different styles of bushing in my rear suspension, a thin and a thick rubber annulus bearing. I don't recall which went where (maybe someone can look at their car?) , but think the thin bearings were in the rear toe arm.

So, not being sure what bearings were "really" in an RS, I eventually went metal bearings and solid subframe mounts in the rear.

Below a new Elephant on the left, stock bearings center and right, note the Elephant only matches that in the center:



EDIT: I just checked a track control arm I have and it has the style of bearing like the Elephant and Center pictured. The one on the right goes in the toe arm, which makes sense since the pivoting of the track arm against the toe arm creates the passive 4 wheel steering that Porsche was trying for.

Basically, this steering effect is eliminated by using solid metal bearings as was done in the race cars.

IXLR8

Same for the front control arm bushings.

A stock bushing on the top and an Elephant Racing bushing on the bottom.

Tony_KB

What's the effect of putting these on the subframe?

Cupcar

The subframe attaches the suspension to the chassis at 4 points which use these rubber bearings. The frame can move about and steer the car, so the RS used stiffer rubber and the GT2 and race cars used solid bushes.

Cupcar

It is the thickness of the rubber shown in the boxes that is different.

Tony_KB

Thanks for all the valuable info, I think the course of action will be:

-PSS10's at ROW height
-Walrod PU bushes in the front
-Check rears and leave if they are ok, get new arms if they are not
-more neg camber as allowed by oem plates
-maybe new engine mounts
-alignment and corner balancing

With these changes, go to track and assimilate, from there add further enhancements as needed that way i will try to gage improvement bit by bit...

Bill Verburg

Because they are a cheap as* shadetree solution and inappropriate for the application

rubber for street
monoball for track

w/ some overlap

It never fails to amaze me how people spend lots for the car than cheap out on parts

Why would you use p/u in front and rubber in the back?? that doesn't make sense, use rubber or monoballs all around.

Solid sides make a huge difference for track and very low cars, not so much for most 993 owners

RS only used harder bushes on the trailing fronts, trailing ream A-arm and and the rear kinematic arm, all the others were the same as on other 993s

Ed Hughes

Chris Walrod's bushings have been a fairly simple and effective way for many here to refresh control arm bushings that have more than a few years and miles on them, in their own home. They are the pick up points that seem to show the wear the most. I think the cheap as * method is to think one doesn't need new bushings up front, and keep the originals in place.

Tony_KB

You are right it doesn't make any sense putting PU bushes in the front and rubber in the back, either all Walrod , (is this possible?) or all elephant.
Maybe for me, since it's a street car mostly that will see occasional track use the walrod is a better deal?