CFM is the most important part. 4.0@90psi or more is good.I have a harbor freight special i use for the sand dunes when i go it is around 5.2 scfm and it fills 8 tires quickly best part it was only 89 bucks.
4 gallon tank with a 1.something scfm will be very slow might start out well but fade real fast
chuck4788 wrote: My experience from inflating tires is that the air compressor needs to be rated at least 25psi higher than the desired pressure in your tires. Actually the criteria is cutin pressure for the compressor, which is about 20-305 psi less than the max rating. The air system on my MH runs at 125psi but the compressor cutin is 90 and it won't air up my 120psi tires. I bought a Porter-Cable 150psi rated air compressor with a 6 gallon pancake tank and it works great. You also need at least several CFM at 90psi and/or a tank or you will spend 15 minutes holding an air chuck on a tire to add a few psi, this eliminates most of the 12 volt compressors. My 2.5 ProSine will run my air compressor.
My experience as well. I bought a 150 psi 120 V Sears unit that stores in a baggage compartment. No problems now airing up quickly.
John & Sharon, 2 Daughters, 2 Sons-in-law, 5 GK
Scottish Terriers (Bonnie & Chloe)
1997 HR Imp., 38CDS, 1 Slide
325 Cummins C8.3Mech., MD3060, EBw/Cst.Sw.,
Toad-98Tracker 4X4 or 03GMC Envoy 4X4, Excallibar TB, Pressure Pro TPMS, Henderson Mot. Ctrl. Units
I did a "Google" search & was unable to find that 150 psi 120 V Sears air compressor people have recommended. Do you suppose it has been discontinued or have I just missed it.
Kelly & Al
2003 Damon Challenger, model 329 Chevy Workhorse 8.1 & Allison transmission. Towing '03 Hyundai Santa Fe 4 cyl 5 speed.
3 lovable doggy guys. Max, Checkers,& Cora..aka, Buddy Bear, Swamper, & Motormouse
The Bayfield Bunch wrote: I did a "Google" search & was unable to find that 150 psi 120 V Sears air compressor people have recommended. Do you suppose it has been discontinued or have I just missed it.
Unfortunately, I believe the model I was referring to has been discontinued. Other posts that I've read discuss a small pancake style that Sears and Harbor Freight have, 4 or 5 gallon capacity, I think.
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