I converted a YORK air-conditioning compressor. Well, there's not really much "converting." My vehicle didn't come with air conditioning. But other vehicles with my engine did. So I went to the junk yard, found a vehicle with my same engine, and stripped the compressor, brackets, and pulleys. Went home and mounted it on my vehicle. A longer fan-belt makes it go. A few trips to the hardware store and I had the correct fittings to connect a pressure switch and the air hoses. Then I found a small air tank and connected that in my air line. A few quick-connects and I've got a respectable on-board air compressor system!
One note- the air conditioning compressors require lubrication. Normally the refrigerant has some lubricant in it. No more refrigerant = no more lubricant. But that is easily solved. I just manually add some lube from time to time. I also mounted a little air filter to the air intake.
Old post, but I'd hope you figured out by now that a York has its own oil sump. The oil will get sucked into the "air" passages which requires you to either modify the compressor so it no longer vents or add an oil/air separator. Sanden's and other rotary compressors use generally use PAG oil in the refrigerant lines to lubricate the compressor and don't have a separate sump like the York's. I run regular 30w in my York since it's just pushing air.
I used to have a hard-mounted Quick Air 2 but it was super slow. Better than nothing but with the low CFM (1.19 CFM @0 psi) It took forever to fill my old 32's from 15 to 35 psi. I think even a 225/70R15 took several minutes as well (0-35 psi). (It wasn't 100% duty cycle if I remember.) Now, I have a CCI/York in my Jeep. I've had two different setups. One was for engines without A/C, the York sat where the OEM compressor and would use a 5-rib serpentine belt that ran all the other accessories. The current setup I have has the compressor mounted next to the OEM compressor and used a small V-groove belt off of the alternator. This allows me to maintain the factor A/C while having OBA as well. I also have a 2.5 gallon air tank mounted under the Jeep.
From what I've seen, the dual ARB, while expensive is about as fast as my York at idle, 700 rpm @90 psi. Plenty for getting 33-35's from 15-35 psi. in a reasonable amount of time. Though with more RPM, the York's are able to produce 6-8 CFM a@90 psi. If I couldn't fit a York to the engine, I'd probably be running a twin ARB compressor for simplicity. If you don't have A/C then converting the Factory A/C compressor to air is fairly simple. Another option is CO2 like the
Power Tank.