Is it possible to use my A/C compressor for onboard air while retaining the heater? How many CFM and PSI do the A/C units put out?
See REDCould I plumb my crankcase vent into the suction side of the compressor after a filter to oil the pump and then put a filter/separator on the pressure side? Interesting idea, it would not be the same oil as the compressor runs. You would have to be creative in case the pump doesn't move the same amount of air as the breather, and some type of bypass when the pump is off.
For the tank I could probably install a 150psi shutoff switch run to the compressor, or a 150 psi blowoff valve?I would use both, but set your pressure switch to like 120 psi then use a blow off valve set for around 150 psi.
When I made some air cannons we also used Air-compressor regulators to regulate the Co2 from the bottles (800psi) down to 100 psi, how could I plumb in a regulator on the pressure side to allow only 150psi and to stop over-pressurization of the holding tank?
That is the function of the pressure switch, to de-energize the compressor clutch when desired pressure is reached.