Nissan 370Z Forum
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Nissan 370Z Forum (http://www.the370z.com/)
-   Brakes & Suspension (http://www.the370z.com/brakes-suspension/)
-   -   BC Coilovers Question (http://www.the370z.com/brakes-suspension/117522-bc-coilovers-question.html)

teggy 12-02-2016 05:44 PM
or nm i think i figured it out.. someone confirm this for me. so the actual shock is what holds the preload and the adjustment it done by the spring in the rear so you can make adjustment in the rear without losing the preload.

Jhill 12-02-2016 11:15 PM
Quote:
Originally Posted by teggy (Post 3585276)
simple question so you can adjust the front without having too touch the preload again, but the back anytime you make an adjustment the preload has too be adjusted again?
Right. The rear you have to adjust the spring seat and then the shock length after you set your spring, that's the downside of oem type.

Fairlady_Zeto 12-03-2016 11:55 AM
Quote:
Originally Posted by Jhill (Post 3585233)
Hmm looks like I need to add a little preload to my rear on my powertrix. Been feeling good but just a slight bit of noise over speed bumps. I just threaded the shock bodies up until all spring play was gone but didn't actually preload it and I too am a bit lower than I had anticipated for how high I set the collars (also not exactly even side to side). Going to do one more final adjustment Sunday before track event on Monday. Going to be a little harder to measure my exact spring compression since it still uses the oem seat but I'll get it close.
Yeah it made a world of difference after everything was done. I measured from where the spring seat comes in contact with the perch up to the top of the spring then preloaded up 8mm using the jack (BC recommends 7-10)

Fairlady_Zeto 12-03-2016 11:59 AM
Quote:
Originally Posted by teggy (Post 3585279)
or nm i think i figured it out.. someone confirm this for me. so the actual shock is what holds the preload and the adjustment it done by the spring in the rear so you can make adjustment in the rear without losing the preload.
Yes exactly and the pita part is that each and every time you make an adjustment to the spring in either direction you also have to go back in and reset the preload. It took me three or four tries to get everything where i wanted in the rear. Fronts are easy because they are indeed preloaded from the factory youre just adjusting the lower locking rings and twisting the shock body up or down.

teggy 12-03-2016 12:35 PM
that does sound like a pain then, hope i get it first try was just going too go half way in the rear then hope that low enough lol

Fairlady_Zeto 12-03-2016 01:25 PM
Quote:
Originally Posted by teggy (Post 3585544)
that does sound like a pain then, hope i get it first try was just going too go half way in the rear then hope that low enough lol
Its not hard it just takes time. I personally would start by lowering it a quarter then seeing where it is. Mine was quite low already at a quarter of the way and then i raised it from there. Good luck:tup:

teggy 12-03-2016 05:44 PM
yea i was going too start of by lowering half way but maybe that too much too start lol i just want too lose the wheel gap


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