Engine Oil Cooler

Ideally the oil pump would have a dedicated stage or two that takes the scavenged oil out of the dry sump pan, pushes it thru the oil cooler, and then dumps it into the dry sump oil tank. :)

In the real world it is usually plumbed between the oil pump and the engine using at least -10AN lines & hoses. Can buy a thermostat for the oil system if you live in an area where it will too cold to have the cooler in the system all of the time. These start to open at 160°F and are fully open by 180°F, and they never fully close - there is always a little oil flowing thru the cooler so that an sir pocket doesn't develop and get delivered to the bearings when the t-stat starts to open.
Can find these t-stats at BAT-Mocal (along with some really good oil coolers) and Pegasus Racing. Summit may finally be selling them too. DO NOT buy the type with cast hose bibs, buy the type that requires an AN adapter fitting and use some form of compatible hose & fittings. Hose barb type fittings are really, really bad plan for the life-blood of your engine.