I know most of you do not like the pneumatic suspension.But I have a few questions on it.How much is the adjustment from hi-lo.One project I want to try after my offroad wagon is built and I have some space is a lowered wagon with alot of horsepower.But I was thinking(dangerous things happen then) What if the "hi" setting on the air suspension was say 2" below stock ride hight for standard strut wagons.Then the low is well LOW.Than would solve the lowered subie issue and it might be somewhat practical having the thing "bagged". So how much adjustment is actually present?

There was a guy over on XT6.net from Austrailia who made up some kind of switchbox to control his struts independently. It lifts high, and lows low, from the look of it anyway. Mega neet idea!

I can't find it though. Surely someone can.

The XT's had about 1 and half inches difference in ride height from low to high positions.

 

Wayne

I am assuming that the low position doesn't let out all the air.So I bet that if low was 0 psi it could be a good bit lower(Not for driving unless I want to drag stuff off:lol: )

I suppose I could have switches for all struts and maybe a dial to find the right pressure for driving around.Could you imagine an awd "Bagged" subaru station wagon with 450 AWHP:banana: .Really low "for access" and lowish and really fast.

you would have to somhow over ride the automatic lowering when you hit 60mph. that would be very bad if your car was as low as you say you want it...

 

-=Suberdave=-

http://www.suberdave.com

I am assuming that the low position doesn't let out all the air.So I bet that if low was 0 psi it could be a good bit lower(Not for driving unless I want to drag stuff off:lol: )

I suppose I could have switches for all struts and maybe a dial to find the right pressure for driving around.Could you imagine an awd "Bagged" subaru station wagon with 450 AWHP:banana: .Really low "for access" and lowish and really fast.

 

Actually, the pressure stays the same no matter what the height. The difference is only the volume of air in it. The pressure only changes as you add load since the system will compensate to level the car. Ever notice that hiss when you get out of the car. That's so the strut can relevel itself.

I dont have the air suspension on my car.What I am talking about is just using the compressor,tank,and the air struts,lines,etc but not the computer,then just wire in solinoids so when I hit the switch for low all of the air vents out of the air struts..And have a setting that is lower than stock be the normal ride height...

 

might be a lot cheaper than a "Air ride" kit,especially as everyone wants to get rid of their Air suspension..

If you can get a hold of this guy he might be able to help you.

He does good stuff.

 

EDIT : Link didn't show up

http://xt6.net/forum/viewtopic.php?t=6899

I have a issue with Elroy's post on the air pressure vs air volume.

 

His statement is no doubt based on the fact that X PSI

will empress Y pounds (force) = X times A (the square area in inches) of what the gas is contained in.

 

 

If an expandable entity has a volume V, and it has a certain volume of air (V) in it.

If it is constrained by supporting a weight (the corner of said vehicle).

Now if you want to increase

the volume in said entity by adding more air and thus bring the weight

to a level higher than it was initially.

 

I can see no way to do it without forcing air in at a higher pressure

and thus increasing the pressure in said entity.

Note it does not support any more weight just increases the height the weight is carried.

 

Two items come to mind.

One: a tire, adding air makes the tire taller and increases the height of the corner.

In this case the contact patch and thus the "A" in the above example does change.

 

Two: my motor home has air bags and to increase ride height,

I add air (via onboard comp. and air tank), the corner goes up, and the air pressure gauge

(mine has one for each corner)

goes up.

The contact patch of the air bag does not change appreciably.

 

But the volume V contained in both examples does increase.

 

Comments?

PV=NRT