djmc

I think I have a rear shock or dampener gone on a row mo30 with oem shocks I have searched but found enough info to keep me reading for 2 months, there are very rough and uneven roads where I live and my current set up is very bouncy
So a simple question which is better on uneven surfaces

Blisteins HD with mo30 springs or pss9

PS. PLEASE HELP Im starting to go blind from looking at this computer for
the last 5 hours

Viken

To me, if you don't need to make damping changes for each time you go on and off track, the PSS-9 is not worth it. Having said that, if you want to screw around adjusting the PSS-9 shocks for whatever reason, go with them. If you want to just drive your car, you can't beat the HD/M030 combo.

Jeff 993TT

viken, can't you just set the pss-9's once and never change it again also?

Viken

If you want your car to handle well and ride well at the same time, the answer is no. If you don't care about the ride quality, you can very much setup the car to give you optimum handling on the street. However, that may or may not be adequate for a particular track. The purpose of adjusting a suspension, whether it is dampers or anti-roll bars, is to custom tailor the handling to a particular type of driving or a particular venue.

hn

For me, the idea of choosing the pss9 (for a little more money) is to find the perfect setting and stick with it rather than being able to change to different settings (for track purpose).

djmc

Which would be better for rough or uneven roads I have only tracked my car once are HDs mo30 a softer ride

adsc4s

If you want soft, the PSS9's have 9 different setting from soft to firm. With that said, I am not sure how the softest setting compares to the HD's. However, the price delta, at least for me, was not so great so I went with the PSS9's.

Poon

I recently went through the same dilemma,

I spoke with a well respected tuner here in the UK, (our roads are crap) and he advised me not to fit the PSS9s as the spring is far too short for road use, he also said that if I wind the dampers to soft I will have a set of mismatched springs and dampers. I went for the Roock set up, which is very similar to and actually made by H&R.

The bouncy ride you have is probably due to worn dampers, if you are only going to track the car on the odd occasion if never then I would get the Bilstein HD dampers and stick with the M030 springs.

Just my £0.02

hn

Before I was looking for new suspension, I just wanted to correct the problem I had (car not stable during high speed sweep) and maintain the ride quality. I'd thought the Pss9 was too stiff but I learned something after having them. Since the quality (matching damping rate?)is so good, I didnt' mind the stiffness at all. I started out with 9/9 (full soft) for one day and changed to 6/8 and love the ride and may go for even lower numbers soon. The car bounces with a higher frequency though which I like.

Mark in Baltimore

If it's within your budget, I'd go with the PSS-9's. I love the variability.

ca993twin

As I see it, the only downside with PSS-9s (compared with ROW/Bilstein HD) is the cost. When you factor in the expense of the install, the alignment, and the corner balance, the extra cost of the PSS-9 doesn't look too great. Plus it has this terrific "cool" factor, ride height adjustment plus all that damper control. My ROW/OEM shocks are junk, and I'm lining up a slightly used (off a race car) PSS-9 kit. I'd love the RS sway bars, but they are way out of my league. I "think" with my very early build TT (3/95) I may have the ROW rear sway bar already. It'll have to do.

hn

Steve, Per. Products just listed new HR sway bars for our car with rear adjustable I think for a very decent price. That may be another good choice.

Viken

Why do you say that, Steve? Do you think they are hard to adjust or is there another reason? Personally, I would much rather have adjustable bars than dampers. It is a lot easier and much less time consuming.

ca993twin

Viken,

I should have been clearer... "out of my budget". The RS adjustable sway bars would be great, if not for their amazingly high price tag. When I used to race 911s, I only had adjustable sway bars to mess with, and I was able to get the job done pretty well. Of course this was back in the bad old "torsion bar" days.

Shant Ohannessian

Anyone know which setting on the PSS-9 is equal dampening to the HD's?