I've recently picked up a set of nicely used NB Bilsteins for my 92NA (Was actually purchased off of here at, Mturbo)
the specs are as follow:
NB Top hats
Unknown adjustable perches (I believe its Ebay?)
Big bar front, rear bar removed
Cut NB bump stops front, no rear bump stops (Got a set of 36mm linear that I will be throwing on this weekend)
Springs droop when the car is jacked up
Anyhow, I have no complaint about ride quality or height, actually I really like them as is at the moment. one thing that bothers me a little is springs 'clunk, clank' going over sharp bumps (Highway expansion joints, irregular small bumps and dips on local roads).
Some points to mention:
- On large dips, it stays fine and quite at any speed.
- Sound is much more evident & frequent at high speeds.
- At low speed, its hard to replicate the sound.
So I thought it was the top hat nuts, UCA nuts, LCA nuts, etc.. but they were triple checked at full load and are dang on spec. So I am pretty sure its the springs.
What I am suspecting is the following:
1. Springs are high rate, thus, unload rather violently after hitting sharp irregularities, causing it to become unseated
2. Springs are not getting unseated but its just getting loose enough, hiting the adjustable collars
Possible solution that I came up with:
1. Wrap the adjustable collars with garage door sealer to decrease any possible movement of the springs that may occur, creating more of a cheap spring isolator
2. Place some cushy-cushy stuff on wherever spring gets in contact with.
Oh and Yes, I did search but I couldn't exactly find an answer, so please excuse me if I am overseeing some stuff or even better, please guide me to an answer
Help a newb out please !
Thank you all in advance!