I received my 5hp/60 gallon compressor the other day and am slowly getting it set up. It is rated at 15.5 cfm at 90 psi and 17 cfm at 40 psi. First thing I did was added an after cooler using a B&M transmission stacked plate cooler with 1/2" NPT fittings. I mounted it on the back of the protection cage in front of the pump pulley so that it pulls air through it.
I still need to add a water drain at the bottom of the line where it goes into the tank so that water goes into the trap instead of the tank. I ordered a $49
electronic drain valve off Amazon so that it will drain on a set time interval. It will drain there and at the bottom of the tank using remote lines.
I did an initial test the other day using my laser thermometer. Input temp of tube from pump head to inlet of tranny cooler was 255 deg F. Outlet fitting from the tranny cooler was 86 deg F and the temp at the tank inlet was 76 deg F. A significant decrease in temperature and therefore water retention capabilities.