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YOUR RESEARCHPSS9 after install issues
Leading reported evidence
Install pss9 and set the height exactly as x74 suspension
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Performed · outcome unconfirmed · Original poster
I just installed PSS9 and set the height exactly as x74 suspension.
Leading evidence: 'Install pss9 and set the height exactly as x74 suspension' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check offsets' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion
Looking at your avatar you might want to check your offsets on the custom wheels.
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Suggestion
You may be riding lower than the x74 settings, or your suspension maybe be running too soft allowing too much movement.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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7 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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Generation: 20261026T165820Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I have 996 Tiptronic. I just installed PSS9 and set the height exactly as x74 suspension. It is very low lower then my standard suspension (euro model) plus H&R springs. I can not put even one finger between fenders (front or rears).
Problems that I have is that during normal driving with moderate speeds I hear some squeaks in front suspension. Is this normal? When is wet outside it goes away but after some driving it come backs. During the suspension installment I installed the rubber upper piece form my old suspension so the spring is not moving around. This is not this sound.
Also with the X74 ride height on bumpy road I can hear front tires touching fenders. Is this again normal or PSS9 should not be lowered that much? It seems that when tires are touching the fenders the suspension is not on it bump stops.
Last question PSS9 have two springs: shorter one down and longer up the strut. Do you some how adjust them? There is some adjustments but I don’t know which way it should be adjusted. Here in Poland no one know this suspensions.
I am running the x74 suspension and I have never rubbed the fenders or hit the bump stops. I have around 1 1/2 finger gap between the wheel and the fender. You may be riding lower than the x74 settings, or your suspension maybe be running too soft allowing too much movement.
Here is the ride height in the front with x74
The wheels on my avatar are winter wheels. For summer I am using Turbo twists. I just measured my suspension. Front is 63,0cm/25,15 inch, Rear 65,6cm/25.8ich. Shocks are set: Front 8, Rear 6. I will try to make some pictures tommorow.
Did you install the stock thrust bearing that sits between the rubber isolator and the camber plate? If not, the spring will bind when turning and cause strange noises.
The thin flat spring is just a helper and is normally fully compressed. It expands when you lift the car so that the springs stay in their pockets as the struts extend.
-Wayne
Sounds like the front is a bit too low! I have PSS9 on my C4S and I followed the gT3 Ride height of 65cm and it works well on track, no rubbing at all. If you need help in Portland, try Rennsport Systems.
Rennsport Systems
[phone removed]
Raise it up a bit and the sound should go away. I had the some noise when going over bumps when I first installed them. I have mine set at being able to put a finger between the tire and fender.
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