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Air Compressors?

roaniecowpony

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A redneck work around for the lack of an inline pressure gauge is a stop watch. 20psi to 39psi with my stock KO2s on the Rubicon, takes about 2 min and 10 sec. The last tire takes a little longer ... the pump is running hotter by tire number four.
I'm not a expert wheeler by any definition, but I read an article or two by some who are. They all were talking 10-12 psi with no beadlocks and single digits with beadlocks. They stated that those lower pressures have a huge difference in traction. Me? I have a lot of truck time on trails, but not much with Jeeps and none of it aired down.
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roaniecowpony

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For a fast re fill,, Powertank. It will even re-seat a bead. No wires, easily portable, no real moving parts. Yes, you have to get it refilled with CO2.
Didn't you see Jaws when they shot the scuba tank? Shark guts everywhere.




My new compressor is much faster and safer.

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melendez69

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roaniecowpony

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mikej

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For what it’s worth, I went with the Viair 400P-auto due to the automatic cut off. It’s kinda nice to have the thing turn off while I’m moving from tire to tire. It’s a little bit slower, but I doubt I’ll notice. I like the duty cycle of the 450 (and it has autoshutoff) but it was a lot slower.
 

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roaniecowpony

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I looked at the duty cycle of the 440P. It's 30 mins continuous. The 440P also has a higher CFM rating than the 400P at the pressures from 10 to 30 psi and should take about 2 mins to air up a 35" tire from 10 to 30 psi. Plenty of margin for me. I have no plans to use it for anything else.
 

stil2low

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Made up a little bracket for my 450H. Had the pump mounted under the hood of my JK and worked very well. It’s only 1.8 cfm but at 100% duty cycle. I made a 4 tire inflation hose and will inflate my 35’s from 10 to 34 in about 12-13 minutes

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kkuntz01

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I'm not a expert wheeler by any definition, but I read an article or two by some who are. They all were talking 10-12 psi with no beadlocks and single digits with beadlocks. They stated that those lower pressures have a huge difference in traction. Me? I have a lot of truck time on trails, but not much with Jeeps and none of it aired down.
I can tell you from experience, tire pressure means all the difference in your vehicle walking up an obstacle, or having to ram the skinny pedal to the floor trying to throttle over it, or having to back down and look for a bypass. A couple of times I've wheeled with people in Moab who chose to run their tires at higher PSI (18-20psi) where I was running about 13psi. Lines that I would walk right up and make it look easy, they struggled or it required more throttle input.


Another example would be getting stuck in the sand at the beach or cruising across the top of it without a care in the world. I rescued a couple in a trailblazer on a beach in Cape Hatteras. They had buried the wheels up to the axles on it. I had them air down before holing a recovery strap and giving them a tug out of their ruts and they were able to drive off the beach.
 

kkuntz01

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Made up a little bracket for my 450H. Had the pump mounted under the hood of my JK and worked very well. It’s only 1.8 cfm but at 100% duty cycle. I made a 4 tire inflation hose and will inflate my 35’s from 10 to 34 in about 12-13 minutes

74C1B47E-4278-42A1-A27B-40787F731353.jpeg


81949898-A474-472A-B7CD-E5D657FB97CF.jpeg


323E519B-0F42-48CF-9475-66EBBDF958DF.jpeg
I've been contemplating doing something similar to what you did on my junk in that same location. My only concern would be the tub supporting that much leveraged weight (figure most are around 10-12lbs) without any vertical support underneath the bracket to the wheel well hump.

Have you noticed any issues with it bouncing around or the tub flexing as you're rolling down the road with that set up?
 

stil2low

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I've been contemplating doing something similar to what you did on my junk in that same location. My only concern would be the tub supporting that much leveraged weight (figure most are around 10-12lbs) without any vertical support underneath the bracket to the wheel well hump.

Have you noticed any issues with it bouncing around or the tub flexing as you're rolling down the road with that set up?
I was concerned with that too, but so far so good. The tub definitely seems stronger than the JK along the rail, and there is also a anchor point for the carpet underneath the pump I could tie into if need be

I don’t hear it at all and haven’t seen any signs of movement. Maybe on my days off I’ll mount the GoPro back there and go for a drive see if it moves at all
 

szobell

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I picked up an ARB Twin. Been looking at locations and have found 2 under hood, 1 under passenger seat, 1 behind driver and last in the rear cubby storage. I ordered the under hood bracket on driver fender. Jim Clark, [email protected]. makes the bracket for $93 shipped. Nice guy too.

Update: Got the bracket today. 3 piece heavy gauge, powder coated with hardware. Very professional product.
How difficult was it to mount?
 

Lou3.6

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Highly recommend ARB CKMP12! I chose for a long time, compared the characteristics and realized that this is the best in its price category. I got one article https://jeepequipment.com/portable-air-compressors-for-jeeps/ In which it was written for the best Portable Air Compressor, After reading and thinking for a long time... I decided to buy CKMP12
Good Choice, one that I have also. The "Portability" aspect most appeals to me - tired of getting "ripped" off at the most unexpected times, if you know what i mean !? Mom always used to say, "An ounce of prevention is worth a pound of cure." ! Wish I'd taken her advice way long ago. I also recommend getting their Deflator Gauge - I don't know if they have a Digital one yet . I've had mine for about 3 years and at the time they only had the analog . It's not the quickest, but it's gotten the air-up / air-down thing "more enjoyable". I'm still in my 2016 G.C. but I intend to keep it when I "move up" to a 2020 JLU or perhaps Gladiator ! ?
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