PUBLIC FORUMS => General Discussion => Topic started by: GTJake on November 11, 2008, 11:11:15 AM
Title: 12v compressor...worth it?
Post by: GTJake on November 11, 2008, 11:11:15 AM
So I need some sort of on-board air. in the intrest of trying to be cost effective, what do you guys think about this one? has anyone had a small pump like one of these? http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=96068
Title: Re: 12v compressor...worth it?
Post by: fedrusion on November 11, 2008, 12:26:35 PM
I have a combo flashlight compressor that my wife got me a couple years back from wally world. It does the trick its just not the fastest.
Title: Re: 12v compressor...worth it?
Post by: GTJake on November 11, 2008, 01:10:14 PM
yeah i have one too, but sunday i uesed it to air up a tire...i started it on 1 tire , ate lunch and stood around and that 1 tire was still not done. im not patient enough to use it again. i need a better way
Title: Re: 12v compressor...worth it?
Post by: smichaelR22 on November 11, 2008, 03:01:42 PM
get a york or get a N2 tank, i wouldnt bother waisting money on any 12V compressor- i have never seen one thats usefull for cheaper than the above 2 options.
$0.02
Title: Re: 12v compressor...worth it?
Post by: Wingman on November 11, 2008, 03:03:33 PM
Joel (FairportX) has a good unit...
Title: Re: 12v compressor...worth it?
Post by: smichaelR22 on November 11, 2008, 03:08:04 PM
maybe good for 31\" tires still 5- 8 minutes a tire is along time after wheeling all day.
cora\'s york with fill my 42\" TSL from 4psi to 25psi in less than 30 seconds or so
Title: Re: 12v compressor...worth it?
Post by: GTJake on November 11, 2008, 04:02:10 PM
Title: Re: 12v compressor...worth it?
Post by: smichaelR22 on November 11, 2008, 04:22:00 PM
the last time i looked under an XJ hood, realistate is pretty scarce.... id look for a hole thats near the belts first.... with a cerpintine, you probably end up welding a ve grove to one of the existing pullies.
you would have to do some research to see if the volume of that pump is anything comparable to one of the larger yorks. i believe there are 3 sizes- its been a while since i have read up on them.
Title: Re: 12v compressor...worth it?
Post by: GTJake on November 11, 2008, 04:56:03 PM
theres got to be a 12v one out there thet works well. I want to be able to blow up a 35 in only a min or so.
Id like to mount it in the rear on my jeep and hard wire it in to a switch. The less things under my hood the better. (water damage)
Title: Re: 12v compressor...worth it?
Post by: fedrusion on November 11, 2008, 06:31:59 PM
You should put together your own CO2 onboard air system, I think the 15lb tanks are available on ebay for about 90 each then you will need to add a regulator and figure out how to mount it. pretty cheap compared to the ready to go units. and it will air up your tires faster than any plug in 12V compressor.
You could also turn your AC into OBA with the adition of an air tank.
Title: Re: 12v compressor...worth it?
Post by: GTJake on November 11, 2008, 09:00:36 PM
...but then wouldnt I loose use of me AC system?
Title: Re: 12v compressor...worth it?
Post by: smichaelR22 on November 12, 2008, 02:23:54 AM
yes
Title: Re: 12v compressor...worth it?
Post by: Wingman on November 12, 2008, 07:47:51 AM
A/C is for sissies, man up... :rofl:
Title: Re: 12v compressor...worth it?
Post by: GTJake on November 12, 2008, 08:21:08 AM
I have to/had to...wear a tie to work.
Im not willing to give up my AC. I like the idea of Co2 and have been thinking about that for a while, but I worry about not being able to know if its full enough or not. whos using a co2 tank??
Title: Re: 12v compressor...worth it?
Post by: gCracker on November 12, 2008, 08:28:54 AM
I was ready to convert my A/C to OBA, until a long trip home from Rausch in the summer.. believe me A/C is needed for those trips.
Ryan posted a 12V compressor on eBay a while ago, I think it was Puma brand that was supposed to be very worth the money, it could even run tools.
Keith loves his C02.
Title: Re: 12v compressor...worth it?
Post by: GTJake on November 12, 2008, 08:47:14 AM
I guess then the next step is probably to go to harbor freight and buy one, air down 1 of my tires and see how long it takes...if it takes too long, return it
Title: Re: 12v compressor...worth it?
Post by: fedrusion on November 12, 2008, 12:28:23 PM
As long as you know how much your empty tank weighs you can get an idea by using a bathroom scale. And if all your going to use it for is airing up tires you should be able to many a tire before depleting it.
I have been looking into seting one up, I have heard that a 15 lbs CO2 system can support an impact gun for about 30 mins. obviously this would vary depending on each gun.
Title: Re: 12v compressor...worth it?
Post by: GTJake on November 12, 2008, 12:44:50 PM
I hate to worry about running out. it goes against my \"be prepared\" motto. and I should be able to get a \"good\" 12v for UNDER the cost of Just the co2 tank. and i wouldnt have to worry about ever running out
Title: Re: 12v compressor...worth it?
Post by: GTJake on November 12, 2008, 12:57:37 PM
http://www.grainger.com/Grainger/items/2AGF2
ok this one has 2.54 CFM @ 135psi and a max psi of 150.
is 2.54 enough to power a gun?
Title: Re: 12v compressor...worth it?
Post by: GTJake on November 12, 2008, 01:05:48 PM
i have a bluepoint gun so i used this as an example. if u read the specs it looks like it working CFMs is only 2.8....it SHOULD work......right???
Title: Re: 12v compressor...worth it?
Post by: fedrusion on November 12, 2008, 09:45:58 PM
I have found that what it say it will run on and what it actually needs are not the same, I would say around 5 cfm @ 90 for best results for an impact. If you have a tank with the compressor You should be able to use it in short bursts, I did this with a little pancake compressor when pulling a motor out of my MG.
The compressor in my garage does 5.8cfm @90 and just barely keeps up with my impact gun set to full torque.
If your only going to need to fill tires that compressor should work, Then you could also test how well it keeps up with a gun set to a lower torque say just enough to lossen lug nuts.
