What Air Compressor Do You Have?

Built this from parts.
Chinese harbor frieght elec start 11 hp gas motor.
3 cyl 2 stage (2 cylinders pump into 1 cylinder which then pumps into the tank) total 3 cylinders. eatoncompressor.com (100% American) 300 bucks plus shipping.
Standard 60 gallon tank with pressure switch routed to a timer control module I built with a relay that starts and stops the motor based on psi in tank. Added a solenoid air valve which serves as an auto unloader that dumps pressure off pump during startup and subsequently dumps moisture and water collected in pump input line to tank.
Works awesome. 16 cfm at 175 psi. Starts and stops just like an electric pump.

I suppose I could clean up the wiring and some small items but so many projects and so little time, this one got put together in beta form and it has been working great ever since. Uses riding lawnmower battery to for startup, has its own trickle charge built into motor. Seems like the battery goes down if I leave the pump in active mode for a week or so, as the relay and timer stay on even though the motor never kicks on cause it is above activation pressure. Half the time I forget to turn it off.