Outer Limits 4x4 Board

I am thinking about buying a Boss air comp. Does anyone have first hand info on these. Are they reliable, where are they made, amps draw, lts per min anything else worth knowing.

thanks

Gary

Hey Gary,

Here is some info I found on them recently,

BIG PRO Compressor (PX7) 12v 100% duty, restart amp draw of 60amps max pressure 200psi recommended running pressure of 0 to 150psi continuous, will restart at 200psi. External washable air filter for easy maintenance, fan on rear of engine for cooling. Robust construction, replacement parts available for re-build (if needed). No lubrication required, pumps about 3.5cfm free flow.

i got the big mofo and havnt used it yet but can tell you it is big

few threads on patrol forum bout em.

http://www.patrol4x4.com/forum/showthre ... light=boss
http://www.patrol4x4.com/forum/showthre ... light=boss
http://www.patrol4x4.com/forum/showthre ... light=boss

Have got one in my mq with a 10 litre air tank. It`s been in there for 2+ years and has been faultless. It inflates my 35in trepadors from 15psi to 35psi in about a minute per tyre. I have a 30amp circut breaker controling it . They do draw about 15 amps when running.

Ive got one with a 15 litre tank. I put it in 2 months ago. I have no complaints.

With a full tank it seems just as fast as a servo pump.

Hi all,

Thanks for your replies. They look like a good solid unit and with spares available. I think I'll lash out and get one.

Regards

Gary

ive had one in now with a 9 litre tank for about 12 months.

pumps up my 33's from 18 psi to 35 in less than a minute each.

never stops, no problems, wrapt with it so far

Had one in my 80 coupled to a 5 gallon tank. Was awesome.
The only drawback is that you ALWAYS end up doing your mates tyres after a days wheeling as well.

Rick.

Mine is very slow compared to my old endless setup. I only run a little 3 litre tank though. Takes about 4 minutes to pump a 35" tyre from 6 to 38psi. Does a bigger tank really make all the difference?

Thanks again for replies, have just ordered compressor.

regards

Gary

RAY185 wrote:Mine is very slow compared to my old endless setup. I only run a little 3 litre tank though. Takes about 4 minutes to pump a 35" tyre from 6 to 38psi. Does a bigger tank really make all the difference?

Warning Will Robinson - should be much faster than that even without a tank at all. Make sure you are running very heavy (8mm) wire and that your power source is not also running through dash board and pressure switch.

Call us on 03 5975 5533 if you want any advice. Even if you already have one and want it to work better...

Also got some in stock.

Hobzee wrote:

RAY185 wrote:Mine is very slow compared to my old endless setup. I only run a little 3 litre tank though. Takes about 4 minutes to pump a 35" tyre from 6 to 38psi. Does a bigger tank really make all the difference?

Warning Will Robinson - should be much faster than that even without a tank at all. Make sure you are running very heavy (8mm) wire and that your power source is not also running through dash board and pressure switch.

Call us on 03 5975 5533 if you want any advice. Even if you already have one and want it to work better...

Also got some in stock.

He speaks the truth, these things suck the juice, and you almost need winch size power cables running to them to supply it.

i ran 4 gauge with mine and run it off the main battrey it sucks the joice but very fast!!

Yeah, I did read the other threads regarding wiring before fitting it up. I used 8mm 100amp cable. Engine on, I read 14.2v at the compressor, switch the compressor on and it drops to 13.75. The battery, compressor and 180a relay are all in the back so there are not any great lengths of wiring. Only thing in cab is the switch. I pulled out the stop watch this morning and did an official test. 3m54s to pump a 35x13.5x15 tyre from 10psi to 38psi.

Thinking about puting a fitting straight onto the compressor (negating the tank) to see if its quicker. Any other ideas?

RAY185 wrote:Yeah, I did read the other threads regarding wiring before fitting it up. I used 8mm 100amp cable. Engine on, I read 14.2v at the compressor, switch the compressor on and it drops to 13.75. The battery, compressor and 180a relay are all in the back so there are not any great lengths of wiring. Only thing in cab is the switch. I pulled out the stop watch this morning and did an official test. 3m54s to pump a 35x13.5x15 tyre from 10psi to 38psi.

Thinking about puting a fitting straight onto the compressor (negating the tank) to see if its quicker. Any other ideas?

Off the cuff - sounds like there is a problem of some sort - they are better than that. I'm thinking maybe quality of connections or fittings, type of air fittings or quality of earth. Have you earthed to battery or to body and potentially earthing through accelerator cables, etc... Most electrical performance problems with big elec motors (includes winches) is usually poor earth.

Give me a call on 03 5975 5533 and I will suggest someone local to swing by and see for an opinion on how you have set it up.

Hobzee wrote:

RAY185 wrote:Yeah, I did read the other threads regarding wiring before fitting it up. I used 8mm 100amp cable. Engine on, I read 14.2v at the compressor, switch the compressor on and it drops to 13.75. The battery, compressor and 180a relay are all in the back so there are not any great lengths of wiring. Only thing in cab is the switch. I pulled out the stop watch this morning and did an official test. 3m54s to pump a 35x13.5x15 tyre from 10psi to 38psi.

Thinking about puting a fitting straight onto the compressor (negating the tank) to see if its quicker. Any other ideas?

Off the cuff - sounds like there is a problem of some sort - they are better than that. I'm thinking maybe quality of connections or fittings, type of air fittings or quality of earth. Have you earthed to battery or to body and potentially earthing through accelerator cables, etc... Most electrical performance problems with big elec motors (includes winches) is usually poor earth.

Give me a call on 03 5975 5533 and I will suggest someone local to swing by and see for an opinion on how you have set it up.

Too easy, let me check a few of these things out as well as pumping straight off the compressor first. If I still have a drama I'll give you a bell.
Your attention is much appreciated Steve.

That sounds about the same speed as mine. It takes 6 minutes to pump a 37 on a 15 x 10 inch rim from 10PSI to 40 with the 9L tank full of air! I just thought they weren't as good as the advertising. Mine is earthed to the floor of the body, should I earth it back to the battery or chassis?

Nelso wrote: should I earth it back to the battery or chassis?

try it, ya got nothing to lose..

to Hobzee for standin by his gear and helpin out

off topic i know but great stuff to you hobzee - always helpin out and maintaining genuine service that is so rare these days.

bogged wrote:

Nelso wrote: should I earth it back to the battery or chassis?

try it, ya got nothing to lose..

to Hobzee for standin by his gear and helpin out

Thanks Mr Bogged.

Yes most Earth problems come from earthing to body - that then relies heavily upon earth strap to engine and to battery and the most common cause for buggered clutch cables and accelerator cables, etc. Will make a huge difference if you run 8mm wire (battery lead strength) to +ve and to -ve on battery.

This stuff even applies to brighter lights and better UHF reception, etc.

little rusty wrote:off topic i know but great stuff to you hobzee - always helpin out and maintaining genuine service that is so rare these days.

Thanks Mr Little Rusty Sir.. What goes around comes around. There aren't too many other sellers out there who get out and mix with the dudes.

how did ya go in the end Ray?

bogged wrote:how did ya go in the end Ray?

Been quite the saga Bruce. New one should arrive today sometime. I'll test it over the weekend and post up the whole story next week. Let me just say that Steve (Hobzee) has gone above and beyond to help me out as much as he can even though I didn't buy the compressor off him.

I'll provide details next week so stay tuned if you're interested.

RAY185 wrote:

bogged wrote:how did ya go in the end Ray?

Been quite the saga Bruce. New one should arrive today sometime. I'll test it over the weekend and post up the whole story next week. Let me just say that Steve (Hobzee) has gone above and beyond to help me out as much as he can even though I didn't buy the compressor off him.

I'll provide details next week so stay tuned if you're interested.

Cheers dude.
Again, good to see someone for once standing by a product.

RAY185 wrote: Let me just say that Steve (Hobzee) has gone above and beyond to help me out as much as he can even though I didn't buy the compressor off him.

Damn that's awesome, i've never bought anything from him and i've been umm'ing and ahh'ing for the last few weeks about some of the things on his site but guess who'll i'll be calling this week

cheers

Hi all,

I started this thread a few weeks ago. Well the compressor and air receiver arrived ( thanks Hobzee ) and I finally got it fitted up. Managed to fit it under bonnet picking up existing holes or captive nuts.Took me a while to measure and make mounting bracket but I'm just slow at the best of times. Never had to move a single original thing either so was happy about that. Had to relocate small airlocker compressor but that fitted ok after making another bracket. 9 litre Air receiver fitted between transmission and chassis rail on x member. I didn't have any plans as to where it was all going to fit just worked it out as I went along. Used Jamec fittings for air outlets front and rear picking up bolt at rear and captive nut up front. Fittings held in place using plastic coated P clips. 8mm press in fittings were used for high pressure air lines. Used 2x 40 amp auto resetting fuses to give 80 amp protection. Compressor pumps 9 litre air receiver from 0 to 135 psi ( pressure switch cut out setting ) in 1min 45 secs. Should be the ducks nuts for reseating tubless tyres. pumped up a 275-65-17 from 0 to 38 psi in about 3 mins. I'm happy with that.
I have some pics if anyone is interested in fitting one to a 2006 t/d Landcruiser.

Cheers

Gary

RAY185 how did you go with the new unit????

Featherfoot, if your in Perth I wouldnt mind having a look at your install as mine is not as quick as that. If that doesnt work I'll give you a call Hobzee and see if we can work it out over the phone.

I'll take a few voltage readings and time it before so we have some numbers to discuss.

Currently I reckon my ARB air locker unit is quicker at pumping 33's up than the BOSS and 15litre tank DOH

gtir300 I am in Perth will pm you with contact details


Gary

what was the end result ray