Outer Limits 4x4 Board

Very interested to see the results of this test Nelso. Keep us posted.

Nelso wrote:

RAY185 wrote:

bogged wrote:

clm434 wrote:

RAY185 wrote: $1100(USD) for the bottom of the range.

Yeah they are expensive but you do get what you pay for. Basically a 12v pump with 240v performance. Still, each to thier own.

Come to think of it what are two of the new ARB pumps worth?

I must admit, I feel the need to spend $1500+ on a compressor to used few times a yr, at about 1% of its duty cycle..

Yeah this is the issue. No doubt its an excellent compressor but its use doesn't warrant the expense.

Nelso, 6 minutes each tyre sounds excessive. I'd hate to spend close to half an hour just inflating my tyres. Mine are only 35s and probably wouldnt take as long though. I'm pissed off I can't run endless air on my new donk, t worked beautifully on my old one, took about 2 to 3 minutes to go from 6 to 40 each tyre. I'd love to get that speed or close to it from a well setup yet relatively inexpensive 12V setup. I already have the tank and switches, etc. Just need a compressor (or 2).

There is a BIG difference in time between 35s and 37s on 15x10 inch rims. You wouldn't think they would be that different but the 37s hold a ridiculous amount of air! It used to take the ARB about 15 min per tyre to get them to 20psi so I could drive to the garage to spend another 20 minutes to do the rest.

We should test it on someones 35 up at TuffTruck this weekend and post up how it goes next week.

so how'd it go?

No-one let down their 35 to test it out but we did pump a 33 from 10psi back up to 35psi in 2 minutes. It was on a 10 inch bead-locked rim too.

I would guess if it takes a 37 on 10 inch rims 6 minutes and a 33 on 10inch rims 2 minutes a 35 on an 8 inch rim is going to be less than 4 minutes.

I should have done a sneaky and let someones tyre down so I could test it but to be honest I forgot about doing this once the fridge opened.

Next time I'm out I will try to remember to pump up a 35 as I am curious myself of how long it will take.

clm434 wrote:Here's a pump that should flog the ass of an endless setup. www.oasisoffroad.com

U.S military approved...can your pump run a 1/2" rattle gun straight from the pump? WITHOUT A TANK????

my home made endless air running at 2000 RPM off my suzukis 1 litre engine can run a supercheap auto handheld style hammer chiesel with no tank and keeps up suprisingly well

OK you want big air - do a little web searching (i would link it but im lazy :-) ) for the american screw compressors they fit to F250 and the like.

There is some awesome footage of these babies running two jack hammers through 3/4 inch hoses, The unit is about the size of a sprintex supercharger and has all the goodies like auto throttle control etc. But you do have to have f series underbonnet space....

OH - and dont warn already have some bloody winch and compressor all in one ? or was i dreaming

I have been dicking around with the idea in making a Oasis type compressor from a york and an old winch/hydraulic/etc motor.

Here are some links:
http://www.layitlow.com/forums/index.ph ... 66302&st=0

This is my DIY version of the Oasis XD2000 compressor. I've coupled a York 210R air conditioning compressor to a Prestolite MBD-5007 5HP hydraulic pump motor (24VDC). I run it with 24V worth of marine deep cycle batteries (4 in series-parallel). This fills my 30 gallon tank in an astonishing 3 minutes (0-150).

As yet I have not found a york at the wreckers but there are plenty of sanden 508's about.

Another option I am thinking if is just using the pump from a 240v compressor - there are plenty of these around that are cheap and come with a tank and fittings. Then just match up a 12V motor with the right power/rpm.

Here's a handy table for the yorks:
Engine RPM CFM Seconds to fill a 2 gal tank 0-100 psi
750 3.2 34
1200 4.4 25
2000 7.3 15
3000 9.1 12

Another interesting pic, looks like the pump is from a 240v setup:
http://www.12-voltair.com/products_12v6cf.asp

grazza wrote:As yet I have not found a york at the wreckers but there are plenty of sanden 508's about.

when i got my sd7 from 'u-pull-it' i saw quite a few yorks in the european cars section.

bradley wrote:OH - and dont warn already have some bloody winch and compressor all in one ? or was i dreaming

Yeah they do but they also do portable ones too:



226 L/min @ 90 psi compared to my new ARB compressor which does 72L/min at 30 psi

Any idea on a price on these things?

Ohhhh baby...........

now we're talking

Yeah any idea on the moola?

Corgie Carrier wrote:Any idea on a price on these things?

way too much to run in the engine bay of a 4b (once you remove engine), to use 2-5 times a year.

I put one of these typhoon pumps on my ute connected to an old fire extinguisher... worked well about 3 times then the compressor sh*t itself... going to go with a more reputable brand next time