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PSS9 adjustability question

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Old 01-19-2005 | 05:36 AM
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Default PSS9 adjustability question

For those of you that have PSS9's. They are touted as having 9 point adjustability, are they difficult to adjust, do you have to lift the car or readjust or balance other things on the car when you change the settings?
Old 01-19-2005 | 10:58 AM
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I had mine adjusted when they were installed and left them alone. The front helper springs were rubbing on the inner rim of my BBS RE wheels so we cut them off and re-adjusted the ride height and wired the main spring to keep it in position when the car is lifted. You have to get to the shock towers to adjust the them and that can be a hassle for the rear shocks. You can also screw things up if you don't know what your doing. Nonetheless, they are a great improvement over the stock sport suspension of the anniversary car.
Old 01-19-2005 | 02:09 PM
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They are very easy to adjust on my car. I can reach the fronts by turning the wheels all the way to one direction. The rears I have to slide out the speaker box, but also very easy to do. It probably takes all of about 2 minutes to change all of them.
Old 01-19-2005 | 04:07 PM
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What Darren said. Pretty easy to Adjust.
Old 01-19-2005 | 04:24 PM
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Excuse my ignorance but:
What you are adjusting is the damper rate, correct?.......and there are 9 settings for that?.
I'm assuming you are not messing with ride height (on the fly) as that would affect corner balance & rake........correct?
Old 01-19-2005 | 04:38 PM
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correct.. its dampening rate for both bound and rebound (in pre-set pairs)... ride height is not adjusted by those dials...

ride height still requires to move the perch collars manually and corner balance/alignment to follow...
Old 01-21-2005 | 12:37 AM
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So the dampening is easy to adjust in moments and is not a hassle, but ride height has to be decided upon at installation because there are many more adjustments that must be compenstaed for. Am I right?

I am trying to decide between the X74 and The PSS, I am worried that X74 will be too low for the 40th's front end.
Old 01-21-2005 | 04:11 AM
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Originally Posted by DrPeter
So the dampening is easy to adjust in moments and is not a hassle, but ride height has to be decided upon at installation because there are many more adjustments that must be compenstaed for. Am I right?

I am trying to decide between the X74 and The PSS, I am worried that X74 will be too low for the 40th's front end.
you typically do not change ride height unless you are tuning the car to a specific track or need... once you get to the height you want with the rake you want, you corner balance it for optimal handling characteristics. you can have it higher if you want more street clearance or lower for looks or track needs...

keep in mind, when you lower a car, you increase its roll characteristic (change in instantaneous center)..

a set of coilovers will definitely give you more fine tuning capabilities to your car then the x74 will...
Old 01-21-2005 | 10:55 AM
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Originally Posted by hayaku
keep in mind, when you lower a car, you increase its roll characteristic (change in instantaneous center)..
Care to explain this a tad more.........conventional wisdom would be, lowering cg generally a good thing........I believe the good doctor was once quoted as saying the ideal place for cg is under the pavement.
Old 01-21-2005 | 03:01 PM
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Originally Posted by GreggT
Care to explain this a tad more.........conventional wisdom would be, lowering cg generally a good thing........I believe the good doctor was once quoted as saying the ideal place for cg is under the pavement.

here's a simple link to help understand.. its much much more complicated and most people here use off the shelf components without truly understanding the engineering changes to their car...

cg is a big part, but it ain't everything...

tech article by dr gustuv stroes
Old 01-21-2005 | 03:55 PM
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I'd spend the extra money now and have a competent shop install it. You can set the ride height to any specification and the car realigned. I'm very happy with my PSS9's.




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