On Board Air Idea

[JeepinMaxx]

I just finished putting together a CO2 OBA set-up.  I was at my local homebrew supply shop checking out systems for Kegging my homebrew.  The tanks they had looked like they would work like a Powertank.  So I went on-line and ordered a high pressure dual gauge keg regulator (0-160PSI) for $56, a quick disconnect and ball valve from Home Depot (~$5).  Went to my local welding shop and got a 10LB CO2 cylinder for $90.  You can find these tanks on-line for ~$80 (aluminum) + shipping, however my gas place only does cylinder exchanges, so it made sense to get it local. 
Tested it out.  Filled my 33x12.50s from 10 PSI to 36 PSI in ~ a minute and a half.  (I have a low flow tire inflator, so I'm sure it can be faster with a good air chuck)
Ran the impact gun fine also.
Costs $12.50 to fill (exchange)
According to the PowerTank website - a 10lb cylinder will inflate 20 33" tires from 10-30 PSI (should last a few runs :mrgreen

So for ~ $160 I have a homebrewed PowerTank that is dual purpose (time to brew some beer :wink

If anyone wants the parts/part# list and where to get them, let me know




[attachments are removed after 60 Days]

 

[massxj]

i have a 20# tank and a 150 psi fixed reg. works great and total cost was 25 bucks. the high side gauge wont  move much and when it does your tank will be almost empty. best to go with weight on co2 and not the pressure gauge. anyway  nice set up  im sure you will like it

 

[Rubie Nubie]

Nice, I've got a similar set-up, but I use a older high pressure SCBA system 
that does a pretty good job of filling a 33" tire, from 8psi to 32psi, did
about five complete cycles(20) and still had a few left in it....
It helps being in my position....

An old style scba tank
a old high pressure regulator
a few air fittings
not waiting in line at the Cape Cod beach air-up station
priceless.... :grinyes:

 

[jipjip]

i was thinking of doing this myself, but where do you fill co2 tanks???? they don't do it at my local gas stations i think.
where would you fill the tank??

 

[massxj]

i have mine  filled at a fire extinguisher shop

 

[JeepinMaxx]

Nice, I've got a similar set-up, but I use a older high pressure SCBA system
that does a pretty good job of filling a 33" tire, from 8psi to 32psi, did
about five complete cycles(20) and still had a few left in it....
It helps being in my position....

An old style scba tank
a old high pressure regulator
a few air fittings
not waiting in line at the Cape Cod beach air-up station
priceless.... :grinyes:

Rubie -I was entertaining the SCUBA tank concept - I researched it and if you already have the SCUBA tank/regulator it's definately worth it.  Same with N2 tanks.  Since they are a compressed gas at ~2000- 3000PSI the tire fill-up may be quicker, however, since CO2 is a compressed liquid gas it has 3 times the capacity of a N2 or SCUBA compressed air/gas in the same sized tank.  So cost wise - if you have the compressed gas equipment (SCUBA / N2 tank and regiulator) - that's the cheapest way to go . 

If you are starting from scratch - the CO2 tank / regulator seems to be the least expensive way to air up. 

 

[NomadJeep]

looks good Frank...

 

[CJKarl]

I must say the power tank type set up is nice, but I'm sticking with my little Chinese 12V pump for now. I fill 4-33s from 10 to 40 lbs in 12 minutes. Plus it only takes up a 10"X10"X6" space...so 3 minutes apiece.

 

[JeepinMaxx]

In response to the PM's I recieved - here's the parts breakdown:

High Pressure Beverage Regulator ($56):
http://www.beveragefactory.com/draftbeer/regulator/double/742HP.shtml 

Quick Disconnect with male 1/4" NPT fitting ($2.36):
http://www.homedepot.com/prel80/HDUS/EN_US/diy_main/pg_diy.jsp?CNTTYPE=PROD_META&CNTKEY=misc%2fsearchResults.jsp&BV_SessionID=@@@@1679434477.1145411149@@@@&BV_EngineID=ccdfaddhigieilhcgelceffdfgidgmk.0&MID=9876

1/4 NPT ball valve ($7.96):
http://www.homedepot.com/prel80/HDUS/EN_US/diy_main/pg_diy.jsp?CNTTYPE=PROD_META&CNTKEY=misc%2fsearchResults.jsp&BV_SessionID=@@@@1679434477.1145411149@@@@&BV_EngineID=ccdfaddhigieilhcgelceffdfgidgmk.0&MID=9876

If you dont have a local airgas/welding supply place - you can buy a tank on-line and have it filled locally
http://www.beveragefactory.com/draftbeer/tanks/co2/C10.shtml

 

[massxj]

iv had good luck with  this( 150  psi fixed)  regulator  its a high flow  design  so no worries  of it freezing up http://www.4x4rockshop.com/scripts/prodList.asp?idCategory=214

 

[JeepinMaxx]

I must say the power tank type set up is nice, but I'm sticking with my little Chinese 12V pump for now. I fill 4-33s from 10 to 40 lbs in 12 minutes. Plus it only takes up a 10"X10"X6" space...so 3 minutes apiece.

CJKarl - I also enjoyed the PepBoys $59 compressor. 

But now I need to pass it on to Holly's KJ for air-up and soon to install ARB 

 

[JeepinMaxx]

iv had good luck with  this( 150 psi fixed)  regulator  its a high flow  design  so no worries  of it freezing up http://www.4x4rockshop.com/scripts/prodList.asp?idCategory=214

I looked at this also - and if I was going with a dedicated Jeep OBA - I would have gone that route (be carefull running some airtools at that pressure  :wink

However- since I need an adjustable regulator to run homebrew beer kegs - I made a slight compromise on the BeverageFactory.com regulator  :wink:  On the up-side - If we ever get a large aluminum beverage container at one of our camp outs - we're all set 

 

[PaulW]

now you just need the keg and the tap and you should be all set  :mrgreen:

 

[JeepinMaxx]

now you just need the keg and the tap and you should be all set :mrgreen:

 

[xjmark]

Cool set up. 
I used to carry a 40 cf nitrogen tank and regulator to fill my tires up until I put the compresssor in. Worked well, but didn't have the volume per tank that co2 has.

Do you keep the tank there all the time, or just for trail rides?
That could be a magnet for DOT officers to give you a hard time. :cop: :twak:

 

[JeepinMaxx]

Cool set up.
I used to carry a 40 cf nitrogen tank and regulator to fill my tires up until I put the compresssor in. Worked well, but didn't have the volume per tank that co2 has.

Do you keep the tank there all the time, or just for trail rides?
That could be a magnet for DOT officers to give you a hard time. :cop: :twak:

The tank is just sitting on the bumper for the picture.  I haven't decided where to mount it yet.  Since it will be dual purpose - It will only be in the Jeep for trail rides.  Maybe a bumper mount isn't the best idea