What size air compressor for tires?

[vsheetz]

Originally Posted by mc8404

Just as another option, the Porter Cable at the link below is what I purchased. It fits nicely in the front storage compartment of our Class C, can quickly inflate the tires to 90lbs fairly quickly, and it's quiet.



It's also fairly inexpensive at under $100.



Robot Check

I just bought one of these Porter Cable units as well. Same as a Sears Craftsman this is often recommended and no longer available via Sears. Works well on my 22.5 tires.

Replacing a pancake compressor I used previously that is being re-tasked to another job.

[tmw188]

Originally Posted by vsheetz

I just bought one of these Porter Cable units as well. Same as a Sears Craftsman this is often recommended and no longer available via Sears. Works well on my 22.5 tires. Replacing a pancake compressor I used previously that is being re-tasked to another job.

How noisy is it?

[Tireman9]

Originally Posted by tmaxx

I've got a 29' class c rv with dual tires on the rear. I have it covered for the winter. I noticed today that the outer back tire has only 30 psi. I had a small compressor (3gallon, 100psi) which I carried out to the rv to air up the tire. It took about 15min just to raise it 10psi. I think the compressor is just too weak. I want to buy a new one that I can use when the tires get low. I want one that is not too bulky. Can someone suggest what size I need for airing up my rv tires?
Thanks

If your tire leaked down to 30 you have a problem. Are you 100% certain the tire was no more than 10% low when you last drove it at the end of the last trip?

If you drove with 20% or more air loss you may have done damage and should have professional service and complete inspection of the tire.
I just did a post on the safety concerns.


RE inflating a tire Large 22.5 tires run about 5 - 8 Cu-Ft. you can figure how much compressor you need by looking at Cu-Ft per min at 100 psi to learn how long it will take to raise pressure 1 psi.for each Cu-Ft.

If you need to add more than 10% you will need a LARGE compressor. But if you monitor your tires you should be able to just top them up at a truck stop.

I have covered the question of compressors and inflation a number of times..

[JoeSR]

I have the Porter Cable 150psi compressor as well.

tmw188,

The compressor is fairly quiet. It gets double duty as an air source to top off the MH tires and as a portable air source for my pneumatic trim nailers (I am a slow nailer - it works just fine.).

[TexasProud]

I just bought a Viair 300P off of Ebay couple of days ago. My tires are rated @ 80 PSI so it should be sufficient. Site had it for $149/free shipping or "best offer". I offered $125 (with free shipping) and vendor accepted. Should be here in 2 days and will try it out.