Community Forums

Mapnerd · 08-19-2019, 08:14 PM

I asked a similar question a while back. Do I even need an air compressor?. The answer was yes and there are some good suggestions. I ended up purchasing the Porter Cable solution.

I agree with Gary RVRoamer’s thoughts on your key metric being throughput (SCFM). RV Tire pressures aren’t really anything too special, but their volumes are. So the biggest thing I focused on was a small package with a high throughput so that I could get air into the tire fast and be on my way.

At $135 with a 2SCFM and 150psi rating, its hard to beat the value of the Porter Cable CMB15 if you ask me.

Allentc2 · 08-20-2019, 09:47 AM

Gotta admit, that one looks nice! I went with a Bostitch BTFP02012. Probably a little overkill. 150psi max, 2.6SCFM, and a 6 gallon tank. It'll come in tomorrow, so this weekend I'll go out to the coach, pull the anti-theft caps off my sensors, air everything up, and put the sensors back on.

les.warden · 08-20-2019, 10:25 AM

Quote:

Originally Posted by Allentc2

air everything up,

What pressure to air those tires up to[emoji848]...Now that is a whole new searchable topic. Good luck with your new equipment.

KiteSquid · 08-20-2019, 11:07 AM

I prefer a 12V DC over a 120V AC compressor because I can use it in my toad.

My RV tires dont leak air so I usualy only have to air up when I have decended from high altitude, so it is like twice a year that I have to put some air in a RV tire.

That said I have a Viair 450P RV air compressor. 100% duty cycle 150 PSI / 1.80 CFM

For details go here: https://www.viaircorp.com/portables/450p-rv-auto

Crasher · 08-20-2019, 11:17 AM

I have twin Viair 450's in my rock crawling Jeep for faster inflates. I thought about one for the motorhome, but Menards had a small 120 volt 150 psi compressor for 1/3 the price of the 450 Viair. Easy to store, convenient power source and a little faster than the 12 volt. Either one will serve you well. I only add air a couple times a year.

Mapnerd · 08-20-2019, 11:44 AM

Quote:

Originally Posted by Allentc2

So I purchased a TPMS for my coach (and like an idiot, did NOT get flow-thru caps)

They make flow-thru adapters that work with TPMS Systems. Here’s one from the company that owns TireMinder.

Allentc2 · 08-20-2019, 12:05 PM

Quote:

Originally Posted by les.warden

What pressure to air those tires up to[emoji848]...Now that is a whole new searchable topic. Good luck with your new equipment.

OMG, don't get me started. I've been trying to decipher that chart next to the pilot's seat for months!!!

I'm starting with 95psi per tire and learning how to set the low limit alarm on the monitor.

Ray,IN · 08-20-2019, 12:58 PM

Quote:

Originally Posted by Allentc2

So I purchased a TPMS for my coach (and like an idiot, did NOT get flow-thru caps) and now I'm thinking it might be a good idea to have an air compressor aboard to inflate/deflate the tires as the situation warrants. Have any of you done this? If so, was it useful?

I recall my dad having a compressor that plugged into the wall, but all the ones I see online have alligator clips to connect to batteries. Since I do have an outlet in one of my basement compartments, I'd kinda like to do that.

I cannot think of a situation where you would need to reduce tire air pressure.

Sbrownstein · 08-20-2019, 01:05 PM

Quote:

Originally Posted by Ray,IN

I cannot think of a situation where you would need to reduce tire air pressure.

Easy. Depart somewhere in the NE at 20 degrees ambient with 93#. Travel south to Florida in the winter. Morning temperature 75 degrees ambient, 104#. Maybe within tolerance but I don't like cold pressures that high.

**Lt Dan** · 08-20-2019, 01:36 PM

Quote:

Originally Posted by Allentc2

I'm leaning towards either a Bostitch or Porter-Cable pancake compressor I think. Six of one, half dozen of the other.

Porter Cable is what I use. It's not a pancake, but it only weighs 20lbs and adds air very quickly.

**CLIFFTALL** · 08-20-2019, 01:38 PM

I use it’s sister.

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Spk64 · 08-20-2019, 01:42 PM

X2 on the Porter Cable. Have the same and it works very well. I carry the Viair on most trips but will occasionally swap out for the PC which spends most of the time in the garage at home and is used a lot.

Allentc2 · 08-20-2019, 03:31 PM

Quote:

Originally Posted by Ray,IN

I cannot think of a situation where you would need to reduce tire air pressure.

I was thinking in looser surfaces; sand, etc. and temp changes.

BigEvi · 08-20-2019, 06:51 PM

Sorry to thread jack...Is there a reason one couldn't just plug a hose into the coach's air system?

My coach air system runs about 125psi and my front tires are only 115 and rears 95. Seems like it should work? But there must be a reason no one recommended it.

-E