Suspension question - ride height
Thread Starter
Rennlist Member
Joined: Dec 2007
Posts: 987
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From: Chicago, IL
Suspension question - ride height
I have a 1/2 in difference in ride height between left and right in the rear and a 1/4 in difference in the front. The rear difference is noticeable even without measuring when looking at the car from the back.
This is a stock C2.
What is causing this? Bad springs? The car has 80K and this may well be the original springs/shocks. I am somewhat new to the 964 suspension.
Thanks.
This is a stock C2.
What is causing this? Bad springs? The car has 80K and this may well be the original springs/shocks. I am somewhat new to the 964 suspension.
Thanks.
Thread Starter
Rennlist Member
Joined: Dec 2007
Posts: 987
Likes: 185
From: Chicago, IL
Great point - did not think driver's weight would make that much difference, but it does. Driver's side is higher and measuring with a person in the seat, all is well again.
Thank you!
Btw, what is the the average life of springs and shocks for normal street use, i.e no track time?
Thank you!
Btw, what is the the average life of springs and shocks for normal street use, i.e no track time?
Drifting
Joined: Aug 2010
Posts: 2,274
Likes: 3
Great point - did not think driver's weight would make that much difference, but it does. Driver's side is higher and measuring with a person in the seat, all is well again.
Thank you!
Btw, what is the the average life of springs and shocks for normal street use, i.e no track time?
Thank you!
Btw, what is the the average life of springs and shocks for normal street use, i.e no track time?
80K is only like 4k a year.
I would suspect a normal service life of a shock or strut is 60K
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Racer
Joined: Apr 2008
Posts: 369
Likes: 0
From: Silver Spring, MD
I've been curious about this, so I'm wondering if you can answer. Aren't the 964 struts/shocks just dampers? If so, then wouldn't they carry very little load while the car is sitting parked? Or is there a modest spring within the damper, which helps support static weight of the car? I must confess ignorance on the internals of the dampers, but that's why I'm asking. Any insight into this? Thanks.
Drifting
Joined: Aug 2010
Posts: 2,274
Likes: 3
Gas charged unit would carry a very tiny bit of the load, that is why when the gas escapes the car drops about a 1/4, otherwise there is nothing else inside, like a spring or anything like that: just oil a shaft and some valves inside.
Otherwise, no, the only thing holding the car up is the springs.
Otherwise, no, the only thing holding the car up is the springs.
Racer
Joined: Apr 2008
Posts: 369
Likes: 0
From: Silver Spring, MD
Gas charged unit would carry a very tiny bit of the load, that is why when the gas escapes the car drops about a 1/4, otherwise there is nothing else inside, like a spring or anything like that: just oil a shaft and some valves inside.
Otherwise, no, the only thing holding the car up is the springs.
Otherwise, no, the only thing holding the car up is the springs.
Drifting
Joined: Oct 2009
Posts: 2,211
Likes: 436
From: yoou -tah
so the effect is a slightly lower effective spring rate? the net result is lower ride and increased roll/squat etc?
and the dampening is maintained until the valving goes south? does it go south and leave you with a bounce ride?
in any case i'm convinced mine are near or past their time and have purchased the HR/Bilstein combo. trying to assemble the bits and pieces to install when the weather changes.
and the dampening is maintained until the valving goes south? does it go south and leave you with a bounce ride?
in any case i'm convinced mine are near or past their time and have purchased the HR/Bilstein combo. trying to assemble the bits and pieces to install when the weather changes.
Addict
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Joined: Jul 2003
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From: Atlanta
Impact harshness is the first sign that a shock is going bad. You will feel that long before the shock feels loose in a hand test.
