coilover setup

superpile

superpile

Probably running in circles
Joined
Jan 17, 2006
Location
Asheville nc
So I got the spring rates finally, but still was wonderin how much oil you guys recommend and NO2 charge to put on them. I'm running 14 inch 110 and 80 springs on each corner with 420 lbs per frt corner with 14 stroke SAW shocks without the piggyback with 5 uptravel and 7 down travel. Just need some starting point for oil/pressure.
 
you don't adjust either.

the shocks get 200psi, and the oil level is as-delivered - full.
 
Rich said:
you don't adjust either.

the shocks get 200psi, and the oil level is as-delivered - full.
Click to expand...

Got these used with unknown oil level - not full, if it was full it wouldn't hold any NO2, :flipoff2: These don't have the piggy back res. Do you only charge them if they have the piggy back unit?
200 psi ? I don't have that much in my rear air shocks ... course the complete rig weighs less than 2000lbs. Is this what you run in your rig?
Guess I'll call polyperformance and get some numbers from them.

Like the big woody quote by the way but think the Chuck norris one Travis has is better.
 
I dunno about emulsion shocks, but reservoir coilovers are filled FULL of shock oil. You take out the shaft and piston, fill it almost to the top, then slowly re-insert the piston.

I'm guessing emulsions are different, but at any rate, I doubt you're gonna "adjust" the oil level and N2 charge. This isn't an air shock... spring rate is adjusted with springs, the curve is adjusted with the dual rate slider stop.

I am running 200psi in mine, that's what it says to fill them to. A guy I know with a very light rig had to drop his pressure to 150 because his 80/100 spring combo still had him sitting a little too tall.. The gas is just there to help prevent the oil from foaming, so I doubt 50psi will make any difference in performance for what we do.
 
That's what I didn't get was why do they use NO2, to prevent foaming, ok I'll buy that. I knew the springs supported the weight, oil was for ride/rebound but was wondering what the deal with NO2 was. I'll get with Mike at Poly tomorrow and have him walk me through the emulsion set up and put it up here for anyone else interested. I figured the piggy backs held additional oil for foaming prevention and since NO2 was the compressable part that it would set the rebound, to do that it would seem to need lower psi to allow for proper compression/extension. Seems a high psi would over come the springs and make it behave like a air shock. I was told that is why the reservoir equipped shocks are used in suspensions that see lots of cycling (jumping, high speed, etc) cause they have a much higher oil capacity with the reservoir, the additional oil helped prevent foaming from heat of cycling. Isn't the oil still setting up the rebound/compression cause it is going through the valving and having to compress the N2?
 
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