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Compressor for 80 PSI tires?
#1
I'm looking for a good compressor to keep onboard for tire inflation...and with dually's on my truck, filling up to 80 psi can be a long process. The small 12v compressors I've tried were a mixed bag...weak, but the one had a thread-on valve connection so I didn't have to stay hunched over for 20 min. Worked pretty well for all but inner tires.

I'm also fine going with 110v, but my standard 2.5 gal pancake only gives me +7psi per tank recharge...and it's too big to haul anyway. I figure that with all the big RVs out there, surely there must be a good system...I can't picture elder folks dealing with the ergonomics of the way I've been doing it so far..?
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#2
You're going to need a 120v compressor. The $40-$75 units at Walmart or Harbor Freight will work, they are not fast, but will get the job done, and relatively easy to store.

Also, buy a dual-foot chuck and a dual-foot tire gauge, if you don't already have these.

I have one of these to inflate the 80psi tires I have:

https://www.walmart.com/ip/Campbell-Haus...t/12534870
Wondering about Wandering.
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  • BradKW (06-14-2018)
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#3
My Q industries masterflow MV-50 12v compressor has no issues pumping my airbags to 100PSI and is rated for 120PSI.

These however can use some spit and polish to work to their potential. It draws 16 amps and comes with alligitor camps to attach to battery.

Very few 12v compressors that come with ciggy plugs are any good, as they cannot really ask for much more than 100 watts through that shithouse electrical connection.

My Mv-50 is modified to accept standard 1/4 NPT air fittings, and has a 80Mm computer fan blowing over the head. And a better air hose, and locking tire chuck.

I have a porter cable pancake 120vac compressor, but if someone needs their bike or car tire pumped up, I use the MV-50 as it is capable and convenient and easier to move than the pancake compressor.
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  • BradKW (06-14-2018)
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#4
Check out viair air compressors, they are one of the best there is.
2001 Phoenix Cruiser 2300B
On A Ford E350 Chassis
V10 Engine
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  • BradKW (06-14-2018)
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#5
The on board compressors for air bags work great for that. And then if you ever get airbags you are already set up. The compressors can be mounted on the undercarriage. Mine is screwed the inside of the frame. I had put in an extra line to rear of my truck to air tires up on truck or camper (all tires on my rig require 70-80lbs).
#NomadLivesMatter  
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  • BradKW (06-14-2018)
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#6
(06-14-2018, 07:38 AM)American Nomad Patriot Wrote: The 12 volt on board compressors for air bag systems work great for that. And  then if you ever get airbags you are already set up. The compressors can be mounted on the undercarriage. Mine is screwed the inside of the frame. I had put in an extra line to rear of my truck to air tires up on truck or camper (all tires on my rig require 70-80lbs).
#NomadLivesMatter  
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#7
Viair gained their solid reputation when they were made in the USA. They no longer are, but quality control is likely higher than that of my MV-50, by a good amount I would have to guess.

Almost all of these 12v compressors will have a max run time listed in thier manuals. They can eaasily get too hot, then the little rubber cup on the piston sleeve basically burns up and does not compress the air anymore, making them effectively a noise making battery draining tire deflator.

On my MV 50, the piston sleeve touched the head heatsink in 3 areas, not even 4, and these air gaps effectively act like insulation, prevnting that heat from reaching the heatsink. I filled them with grease to better conduct heat. The 80Mm fan was another attempt to keep the head cool.

Airing up big truck tires, will take some time, so overheating of the compressor is a concern. Try and find the manual of any product considered, and look for the max duty cycle or run time. The cheapo 12v ciggy plug ones will say something like 5 minutes on then allow 30 minutes to cool off. Making them almost useless on big truck tires.

My MV-50 uses a relay in the tail cap as no dc switch is going to last very long switching on and off 16+ amps of electric motor. Adding wires to power an 80mm fan blowing over the head, was simple, though I wish I had a more powerful 80MM fan for the task, one like a Delta that concentrates the airflow in a column rather than the typical 4 hotspot at wider angles. The fan I used was taken from an old desktop computer.

My MV-50 is over 10 years old now. Not sure of the latest offerings but here i a link to it.

https://www.amazon.com/Compressor-Portab...dpSrc=srch

In the related products links, ,there are several Viaair models. If you do go for a 12v compressor,, just make sure they have alligator clips and not a ciggy plug.
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  • BradKW (06-14-2018), American Nomad Patriot (06-14-2018)
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