I have a Procharger project going and came across an issue today while running the engines. I have Prochargers on a couple HP500's. I took the oil supply to the chargers off the port just above the oil filter mounting on the block. I return to a bung on the pan. When I first plumbed the oil I primed the motor and made sure there was oil flow at this port. After running today I touched the supply line expecting it to be warm, but it was cold. Disconnected both my supply oil and return oil lines and little to no oil in the lines. The oil pressure for both motors showed around 50psi. Is this not a good port to pull oil from for the chargers?

Mine pulls oil from the front of the block, the braided line attached right behind the P/S Pump in the pic. Drain goes back to the side of the pan. If it was run for more than just a minute or so, I would go ahead and box it up and send it back to Procharger. Cheaper/Easier to fix now than if it snags a bearing.
cbell