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Bilstein PSS10 Shocks settings

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Simon JH

PCGB Member
Member
Hi,
I have recently put a set of PSS10s on my 964 targa, along with the corresponding lowering springs. The tracking (incl toe in and camber) have all been set by Porsche specialist to 'RS settings'. The car handles and turns in very well on twisty roads however feels vague about the straight ahead on the motorway and seems very susceptible bits of road where trucks have worn a channel on the inside lane in which circumstance it seems more in control that me!
I currently have all 4 shocks set on 5 (0 - 10 range) however am wondering if anyone has any advice on typical settings for road use? (before I start playing!)

Thanks

Simon.
 
On the face of it I have the same set up on my C2 coupe (PSS10's with ride height 'RS'). However, I have certainly not experienced anything but sure-footed handling at all times. If ever I have an issue it's simply with a large pot hole or bump in the road jarring through the car (a consequence of harder suspension).

I run mine on 6 for the road and 10 at the track if dry.

I suspect there is a massive black art in the geometry of a car and thousands of permutations. Not least amongst these is wheel size and tyres. 17" wheels and a decent brand of tyre would be expected... is this what you are running?

There will be others who will have experience of camber, toe in etc that I cannot comment on. I got mine set up by Center Gravity and have loved it since. If you want me to look up further detail, PM me.

Cheers
Mick
 
Not sure what settings you need on the shocks but the straight ahead sensation you are getting is likely to be down to how aggressive they've gone with the geometry.

My car has been set up by Jaz and its turn in and composure through the corners is fantastic. The downside the setup is that it does feel more twitchy (because it reacts to steering input quicker) and at higher speed bumps in the road can send the car off course. It actually feels quite a lot like my old GT3 did!

Car setup is a compromise so you could dial the front camber and castor back a bit if you really don't like it.....


 
I agree with Richard that the shocks will have very little to do with the sensation. RS geometry is probably not the best set up for a road only car. RS settings turn the car into a sniffer dog. The nose of the car will sniff out every imperfection in the road and tell you about them. Great for track but can be disconcerting on the road. My car has RS geo settings...I find the best way to drive it on the road is with a very light grip on the steering wheel and let the car hunt the ruts and cambers and find its own way.

Going back to shocks that are adjustable, the way you set them can affect the amount of understeer and stability at speed. For road and particularly motorway use I would have the front shocks on the stiff side and the rears on the soft side. So if '5' is medium, try setting the front to one harder and the rear to one softer. I don't know on the bilsteins if '1' is hardest or softest so you'll have to work that one out for yourself.
 
Thankyou all - very helpful. I will have a (gentle) play with shocks, but may back off the RS settings!
 

ORIGINAL: Masher

1 is soft, 10 hard.
Mick
Click to expand...

Thanks Mick! [:)]

In which case, the experiment for Simon would be; '6' on the front and '4' on the back. If that feels better but you want more stability at speed, I would then go '7' on the front and leave the rear at '4'.
 
I don't think the shocks are the issue here unless they are badly out of balance.

If you want some proof it's not the shocks, go extreme on the settings so try 1 all round, then 10 all round on a straight bit of road and that should be enough to show you how they influence straight line stability.

Be careful though as it won't be nice on the bends!
 
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