Looking for some info of guys who are already running these.
Just finished building a 94 hilux truggy with trail gear leaves up frotn and fox 2 inch air shocks and a triangulated 4 link rear.The shocks are 16 inch travel and at the momment are set at 195 psi of nitrogen for the vehicle height and have added 36ml of extra oil.As of first trip car is extremely tippy and just wants to fall over.Since then have added oil to come up to 36ml was only 12ml over standard amount for first trip.Also have added 2 leaves back into front spring packs to get them back to original they are 5 inch spring.Rear air shocks have a top seperation of 17 inch and bottom of 37 inches.The shocks are almost vertical and show 5 1/4 inches of shaft at level ride height.
Took car for quick spin now it dose feel better than before but still want it to be stiffer.
So to all you guys running in WE Rock and Oz Rock how have you set your air shocks up?
Any info would be great.
Thanks Duncan
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Air shock presures and oil levels
Moderators: toaddog, TWISTY, V8Patrol, Moderators
the HUGE question, sooooo many variables and ideas.....
How we do it - jack up, remove shock, strip and work out what low speed bleed screws/hole (1 max for trail rig IMO). re-assemble. remove schroeder valve, fill with oil (cycle a few times to get air out) compress to remove excess oil. leave ~3/4 to 1" of shaft open to act as hyd bump. refit valve. (put a little bit of Nitrogen in it to allow it to extend) refit to vehicle. jack up to max (no load on shocks) put ~80psi in both. lower rig and check height. if need be jack up again and add more gas in small increments ~10-20psi at a time (equal amounts L&R). cycle/bounce to settle shox at each setting..
enjoy
note oil levels are NEVER the same from factory!!!!
How we do it - jack up, remove shock, strip and work out what low speed bleed screws/hole (1 max for trail rig IMO). re-assemble. remove schroeder valve, fill with oil (cycle a few times to get air out) compress to remove excess oil. leave ~3/4 to 1" of shaft open to act as hyd bump. refit valve. (put a little bit of Nitrogen in it to allow it to extend) refit to vehicle. jack up to max (no load on shocks) put ~80psi in both. lower rig and check height. if need be jack up again and add more gas in small increments ~10-20psi at a time (equal amounts L&R). cycle/bounce to settle shox at each setting..
enjoy
note oil levels are NEVER the same from factory!!!!
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So when you say cycle then compress to remove excess oil your only compressing it untill there is still 34 to 1 inch of shaft showing.This would leave it over full so when it trys to fully compress it will hydro lock to act like a hydro bump stop.
What and were are the low speed bleed screws Im taking it that they are located in the floating piston .Do you have any more info on theses as never played with air shocks before might just fill till full then compress as you have said see how they go then would think they would be heaps stiffer than now.
Duncan
What and were are the low speed bleed screws Im taking it that they are located in the floating piston .Do you have any more info on theses as never played with air shocks before might just fill till full then compress as you have said see how they go then would think they would be heaps stiffer than now.
Duncan
Greg you are coming to set my coilovers up1MadEngineer wrote:the HUGE question, sooooo many variables and ideas.....
How we do it - jack up, remove shock, strip and work out what low speed bleed screws/hole (1 max for trail rig IMO). re-assemble. remove schroeder valve, fill with oil (cycle a few times to get air out) compress to remove excess oil. leave ~3/4 to 1" of shaft open to act as hyd bump. refit valve. (put a little bit of Nitrogen in it to allow it to extend) refit to vehicle. jack up to max (no load on shocks) put ~80psi in both. lower rig and check height. if need be jack up again and add more gas in small increments ~10-20psi at a time (equal amounts L&R). cycle/bounce to settle shox at each setting..
enjoy
note oil levels are NEVER the same from factory!!!!
I'll let you know when 
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I have a lux with 18" swayaway airshocks and a-frame in the rear. front is 16" airshocks and parallel 4 link +panhard.
i found the same thing at first. it was that unstable it was scary.
now i run them full of oil(as 1madengineer described). i have since manucactured some internal spacers that limit droop by 6 inces in both the front and rear. it seems that 18" shocks on a trail car was a little excessive. anyway, now i run them full of oil then with around 300psi of nitro to leave me with around 60mm of bump travel.
if i had my time again, i would have run coilovers, i think airshocks are best left for buggies.
jim
i found the same thing at first. it was that unstable it was scary.
now i run them full of oil(as 1madengineer described). i have since manucactured some internal spacers that limit droop by 6 inces in both the front and rear. it seems that 18" shocks on a trail car was a little excessive. anyway, now i run them full of oil then with around 300psi of nitro to leave me with around 60mm of bump travel.
if i had my time again, i would have run coilovers, i think airshocks are best left for buggies.
jim
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