Early 928 shock damper and spring selection
#16
Rennlist Member
I fitted S4 perches to my 81. They are a bit deeper. In addition I had to cut 1/3 of a revolution off the spring. Those two combined put me down to where I wanted it.... At the bottom of the factory spec.
#17
Rennlist
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My car sits 26" at the front and 24.5" at the rear when the car is fully settled. Having compared my car to an 84.5, if I try to get the height close I have a very springy car. I know this is due to weak shocks. However, there is no way in God's green earth that this car with S3 springs is ever going to get to 24.5". In fact in checking the height of the car when I originally bought it, with its original 78 springs and shocks, it was too high. And I have had a few people tell me that 78-80 cars were quite high.
Not to be a jerk but I would like to get back on topic. Has anyone actually successfully and properly brought an early shark to 24"-25" ride height at the wheel center. Yes I realize I am abusing the center of the wheel well as a measurement point. I know its a bogus measurement but for sake of this discussion... Running the adjustment collars to zero is not the solution. You're at the end of the spring, meaning your suspension will require a deeper compression to reach the proper inflection and shock damping point. Yes you may want to soften up or stiffen up from time to time. However those changes also significantly change camber and are meant to be changed for the conditions under which you will be running for the day. If you go in there and ***** nilly change the height and let it go with that you're going to chew up tires.
Anyway. I am still looking for someone who has an early car that has solved this with alternative springs either by cutting and retempering or via Hypercoil et al.
Fronkenstein
Not to be a jerk but I would like to get back on topic. Has anyone actually successfully and properly brought an early shark to 24"-25" ride height at the wheel center. Yes I realize I am abusing the center of the wheel well as a measurement point. I know its a bogus measurement but for sake of this discussion... Running the adjustment collars to zero is not the solution. You're at the end of the spring, meaning your suspension will require a deeper compression to reach the proper inflection and shock damping point. Yes you may want to soften up or stiffen up from time to time. However those changes also significantly change camber and are meant to be changed for the conditions under which you will be running for the day. If you go in there and ***** nilly change the height and let it go with that you're going to chew up tires.
Anyway. I am still looking for someone who has an early car that has solved this with alternative springs either by cutting and retempering or via Hypercoil et al.
Fronkenstein
Literally just off the lift...suspension not "pulled down". Bilstein shocks. Lowest setting with my changes (and I'm never ever going to cut springs). It's obviously going to settle more. (It's a good thing there is plenty of "up"....this thing will be "slammed" when the suspension settles.)
Different picture angle:
__________________
greg brown
714 879 9072
GregBBRD@aol.com
Semi-retired, as of Feb 1, 2023.
The days of free technical advice are over.
Free consultations will no longer be available.
Will still be in the shop, isolated and exclusively working on project cars, developmental work and products, engines and transmissions.
Have fun with your 928's people!
greg brown
714 879 9072
GregBBRD@aol.com
Semi-retired, as of Feb 1, 2023.
The days of free technical advice are over.
Free consultations will no longer be available.
Will still be in the shop, isolated and exclusively working on project cars, developmental work and products, engines and transmissions.
Have fun with your 928's people!
#18
Burning Brakes
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Join Date: Aug 2013
Location: Northeast USA
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So gruffalo are you talking lower perches only? Fronts only?
Greg how did you achieve such a nice height balance? Looks awesome. Please share.
Fronkenstein
Greg how did you achieve such a nice height balance? Looks awesome. Please share.
Fronkenstein