IFP Nitrogen PSI effects

[Will]

I know I read something somewhere about the nitrogen pressures but can't seem to find it. Might have been buried within an unrelated topic so I thought I'd start a thread for it.

My 2.5" Custom Kings from Thuren have settled in and the on the highway firmness has smoothed out. I purchased a gauge with a no loss valve and both fronts are setting at 160psi.

I do understand what the Nitrogen psi does and how it prevents the oil from boiling and does not effect the actual valving of the shock. My question is if I bump them up to 200, will I notice a change in the on road firmness? I like the sporty feel from when they were new and wondering how much the Nitrogen psi actually effects the "feel".

[Colibri]

Offroad boogie mode I'm at 250psi on road commuting I do around 150 to smooth them out a little. Same with hydro bumps offroad but 50psi on the street. It's not much of a difference but it is noticeable enough that I bother doing it lol.

[coder]

It might be worth a quick call to Thuren so you can understand all the impacts of moving the psi higher or lower and see what he recommends...

[Will]

I did email Don, I started to call him but sometimes I forget I'm in Florida and didn't know if he was up yet. haha. He said definitely can add more and to try them at 200. It will make a slight change but noticeable.

[thuren]

With less pressure, enough to notice the ride get better, what you are doing is basically "controlling cavitation". The initial first hit can often be what you feel, and softening this can help. From there, Nitrogen pressure does come in to play on the faster/higher shaft speed hits. The more aggressive the internal compression valving, generally, the higher nitrogen pressure you need. For reference, my Stage 1-3 valving can do fine with 150psi. My stage 4 needs about 175psi, and up to Stage 6 can pretty much need 250psi when running hard.

[Will]

Cool, thanks for the info. I might have a nitrogen rig at work so I can try it.

[2wagons1driveway]

Cool, thanks for the info. I might have a nitrogen rig at work so I can try it.

I would look Into buying a 2' tank man. They are like 200$ and worth it to do your own servicing on the shocks or whenever you have to remove them obviously makes them way easier to be bled of nitro... I ran my rears at 300psi for awhile and I could notice less bottoming but I can feel sharp edged cracked more in the rear on the highway at those pressures.


Sent from Canada