meaker, I really wouldn't call it bouncy but it does hug the road much tighter and if the road is bumpy or bouncy the car will feel it. I think the ride is firmer but not as hard as stock. The responsiveness is much quicker.

 

Thanks for the info.. I guess I need to find someone here in Charlotte with PSS10 and see if I can get a ride in thier car...

 

ride height.pdf

 

FWIW, I had a test drive in a PSS10 Turbo; it did not feel bouncy at all. But this is purely subjective so of course not everyone will have the same assessment. I don't know if this would help, but maybe reduce your tire pressures to the recommended 33 and 39 (instead of 35/42) and see if it improves the ride? For me, a small 1 psi increase in tire pressure makes a noticeable difference.


Other than that, keep in mind that PSS10's spring rates of ~285/570 are (significantly?) higher than stock. In addition, it is a stacked spring set up with damper springs fully compressed, so the initial response to bumps will be necessarily stiffer than stock. I am not an expert but AFAIK: Progressive springs are used more in street oriented cars; stacked springs are geared more for performance, not comfort. (Google "linear progressive springs" if you are interested.)

BTW, I called Bilstein regarding potential problem with the internal bump stop when the ride height is reduced too much. For the 997 Turbo Damptronics, Bilstein's official recommendation is that ride heights be reduced 10-30 mm front, and 5-25mm.
It's interesting that Bilstein does NOT recommend ride height be kept same as stock level!

 

Just as some encouragement on the damptronics, this past weekend I autocrossed my RS and the Turbo:

7 runs in the RS 1min 22 sec
1 run in the turbo: 1 min 23 sec

Relatively fast course,
very impressive, ( just not as involving on the sound front!)
thnik that I could go faster in the turbo with more runs

 

Thanks for sharing your experience; your result makes me feel better!
Did you have lap time for the Turbo before the suspension mods?

 

Thanks Cannga for the info. I'll try lowing the pressure to 33/39 and see how that does. If they recommend 5-25mm in the rear, I might be over that a tad.. I still would like to find another TT owner in the area with PSS10...