Suspension & Brakes Theory, alignment, spring rates....

is it my shocks or my lowering springs?

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Old Mar 31, 2005 | 12:57 AM
  #1  
_Endless_'s Avatar
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Default is it my shocks or my lowering springs?

i drive a '99 SiR but not the coupe that you guys have in the US instead it's a 4-door sedan.

i lowered the car using Neuspeed lowering spring(green color) and retained the stock shock absorbers.

i have noticed that the car keeps getting lower especially on the front. the car is turbocharged but i don't think the turbo, pipings and IC is really that heavy to lower the car more, besides, the ride height didn't change when the turbo was first installed.

now, whenever i drive aggressively and the road becomes a little higher(2 inches) all of a sudden, i would hear some metal sound when the tires hit the new road. if i turn right or left while in motion, the fender liner would start scraping on the tires.

my temporary solution was to put the front end of the car on jack stands overnight and this would let the car sit a bit higher but after a few days it will start sagging again.

someone told me that it's my neuspeed lowering spring coz they tend to sag overtime. could it be the lowering spring or the shock absorbers?
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Old Mar 31, 2005 | 06:23 AM
  #2  
CRX Lee's Avatar
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From: Union, KY, USA
Default Re: is it my shocks or my lowering springs? (_Endless_)

It is not the shocks as they do not play an active role in ride height since they have fixed location welded spring perches. If these where threaded coil-overs, the sorty would be different. To me it sounds like there is a spring and weight issue. I would suggest that you take some real measurements and do it periodically to see if they are really changing.

To get a proper measurement of ride height, put the car on really flat ground and use a tape and measure yout rin diameter lip to lip across the face (don't just use the 14, 15 16 or whatever of the tire, get a real measurement), Divide that diameter number by 2 to get the radius or lip to hub measurement. Not use the tap and measure each corner from the lowest part of the rim to a fixed and repeatable point on your fender straight up vertically. If you can't find an exact and repeatable point, put a little piece of masking tape on the fender and put a line to measure to on it. Now subtract the hub to lip number from the bottom lip to fender measurement and you have an exact hub to fender measurement. This is the only real good height measurement (hub to fender) as you have taken the wheel and tire out of the equation.

Take this measurement of a period of time and you will see what if anything changes.
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Old Mar 31, 2005 | 07:08 AM
  #3  
vtecvoodoo's Avatar
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From: SoCal Redneck
Default Re: is it my shocks or my lowering springs? (_Endless_)

It is your springs.
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