Outer Limits 4x4 Board

in the market for a compressor and an airtank for my fourby

its duties will include inflating tyres, footies and the like, operating a rattle gun and eventually operating airlockers.

what size tank do ppl reccomend with which compressor. looking for a compromise on size cos too big and it takes too long to get up to pressure and too small and i will have to wait for it to fill up again after 2 and a half tyres.

after value for money.
dont mind paying a bit more to get quality.

http://myworld.ebay.com.au/the4wdshop/
check Hobzzys shop on Ebay...

Endless Air, and any tank you want.

9 CFM and 100% duty cycle is completely addictive. Turn the compressor on and the tank will fill as you drive.... who cares how long it takes?

Electric compressors are not in the same league.

Steve.

I've had a bad run with electric compressors, there seems to be an inverse relationship between the pressure you need and their life.

Mates have had the identical compressor and used them just for tyres and had reasonable life but ask for 80PSI ( locker ) and the life seems to fall to months.

I'd go engine driven any day ( and wish I had.... )

might hi-jack this a tad.

Can any A/C pump be converted to endless air? Cause I got 2 spare rocky A/C units but don't really want ac. Would love endless air. How hard is it to set up?

RockyF70 wrote:might hi-jack this a tad.

Can any A/C pump be converted to endless air? Cause I got 2 spare rocky A/C units but don't really want ac. Would love endless air. How hard is it to set up?

If it can pump AC gas, then it can pump air.
Just search for endless air, plenty of info.

im already using the spare engine pullley thingo for a/c, and want to keep it.

how big of a tank are ppl running with a 12v compressor?

i made a tank up out of 75mmx50mm at 1.8 meters long i got 30 locks before the compressor cut in again dunno about tire inflation tho i never tryed

PJ.zook wrote:

RockyF70 wrote:might hi-jack this a tad.

Can any A/C pump be converted to endless air? Cause I got 2 spare rocky A/C units but don't really want ac. Would love endless air. How hard is it to set up?

If it can pump AC gas, then it can pump air.
Just search for endless air, plenty of info.

Uh, not really. AC gas carries lots of oil in it to keep everything lubricated. York piston compressors do not require the inlet air to be lubricated to keep them alive, however, pretty much every other compressor does. I have a very small KYB A/C compressor in my 660 sierra running as an air compressor, and it is embarrassingly slow, (and needs oiling to stay alive as it is a vane type) But it does work. how long for though is another question.

There are some axial piston types that require less oil to live in an air environment, but they still won't last long run dry.

Endless air compressors are modified with different seal material to work in a dry environment.

The york piston compressor is the way to go, of you have room for one. They were used in X series V8 falcons, lots of old volvo's and some mercs. They run about 8-9 CFM, and mine worked flawlessly in my merc for 7 years.

I run a 35 litre tank in my suzuki and I have a bigger one in my merc - an ex isuzu FSR brake tank.

Steve.

Steve, where do u run the tank? in the back i guess.

i am also running my sierra g16b ac pump as air pump without tank at the moment. works fine and as fast too.

Going to mod with tank eventually

Nic

My car is a LWB tray so the tank is under the tray. On a SWB, I would put the tank across the car under the floor in front of the rear axle. It would require exhaust work but a smallish tank will fit in this space. On a car with a BL there's quite a bit of room here.

Steve.