Autobahn

How is the PSS9 different from the stock suspension?
I don't use my car for track days so I was wondering if it still would make sense to 'upgrade' my suspension?
Also I do not want to change the ride height of my car because of my steep garage driveway.
I am actually quite happy with the car as it is but since I have been reading in this forum I am not so sure anymore!!!!!

Thanks for any info on this topic.

Patrick

Jeff 993TT

There are tons of stuff in the archives in the 993 board. With several active threads right now.

Here's a link to get you started:

<a href="http://p-car.com/susfaq.html" target="_blank">http://p-car.com/susfaq.html</a>

ggmr

I installed the PSS9 about 6 months ago and love it. It's not too stiff and still hugs the road way better than stock. It is a nice compromise between stock and full race. ('97 993TT)

krish

I installed my PSS-9s about a month ago. When i first picked up my 993tt, I thought "This thing just doesn't talk to you like my 964". She's fast, yes but nowhere near as communicative (I have a H&R setup on the 964). Fitting the PSS-9s has made my 993tt handle better but has also subjectively increased the feel and feedback I get while driving her. Definitely would recommend you getting them!

cheers,
Kris
'97 993tt
'89 964 C4

Arthur Del Mundo

They great thing about the PSS-9's is that they are adjustable and you can go for a total street setup to a track setup to somewhere in between. I have mine set up somewhere in between and it makes the car look better, handle better, and better feedback as well and I can still go over 90% of speedbumps.

Autobahn

Thanks for all the info.

I must admit that I am still very confused.
I live in Germany and therefore I have a european setup which seems to be lower than the US version.
The reason why I am considering changing the suspension is that I have a lot of understeer. I have read in this forum that this could be the result of worn front tires. I am also using 17mm spacers at the rear wheels. Could this add to the understeer?
To get rid of the understeer would I have to make the suspension harder and therefore lower? I am asking because I can't lower the car due to my steep driveway.

Thanks again for your help.

Regards.

Patrick

Greg Fishman

Look at getting an adjustable rear sway bar and/or a thicker one. Tires could be the problem also, especially if the fronts are worn more than the rears.

You could just get a larger rear sway bar and see if that helps the understeer.

TrackJunke

The spacers in the rear could definately be contribution to understeer. You are making the track width larger in the back which decreases the amount of weight transfer from the back wheels during cornering thus giving them more grip. A properly set up suspension could get rid of understeer without making it lower. To get rid of understeer you could also get slightly larger front tires than you are running right now.

ca993twin

You should also check your alignment. A more agressive alignment, while tougher on tire wear, can do wonders in correcting understeer.