I did an about face on my on-board air mentality.
I have been thinking Power Tank all along and did an about face and purchased a
Viair Extreme Duty dual 350C compressors & 2 gallon tank.
100% duty cycle & 2.68 cfm rated.
Rated to fill 37" tires, mine are 33" tires.
I have these neat little valve stem fittings which let air out to a certain psi adjusted by me/you... While you drive!
They are the wrong ones which let air out to too low a psi for each tire (5-20 psi rated).
Anyway I aired down to 20 psi. Great for easy rolling and chatter free off roading.
I will pick up the next psi rated ones in which I can air down to 25-35 psi (15-40 psi rated).
On returning to pavement I aired up back to street pressure, which for me now is quite high as I'm pulling a trailer around the SW.
From 20 psi to 70 it took apprx 6 minutes & 30 seconds per tire!
That is close to a half hour to air up!
Would that be ok for you?
I consider that too much time spent to air up.
This kind of system to me is emergency air vs a quick usable air source.
Good for air when I'm in the middle of nowhere.
So that is what I have...
Oh, those plastic coiled air hoses they come with are junk. Stretch it to the far tires and it is stretched out and does not return to a tight coil for storage. First time out.
I now feel the need for a proper air hose that will have durability.
Nice air 'gun' w/gauge though.
This set-up is supposed to run air gun though.
So there you have my opinion of a dual compressor/air tank from a reputable company.
I don't how racers can use them.
For those of you that want fast I would suggest the Power Tank.
They are supposed to last a decent while.