[solidsnake11]

I used the factory wrx oil pump that runs off the cam to pump oil through a oil cooler.
The factory wrx oil pump is a scavenge pump for the OEM turbo.
One of the aftermarket turbo kits for the brz comes with the wrx pump.

I also used a electric fuel pump for oil scavenging on my gsxr1000 turbo I built. Had to build a oil box below the turbo and run a breather to it. Without the breather the turbo would stop spinning at idle with the pump running. I figured it was sucking the turbo bearings dry which caused it to stop spinning.