Where does the oil drain from the turbo go?
Well, where is the turbo mounted? If you’re using an HKS manifold or a similar piece, it’s easy. The turbo drain points down and you run a large diameter hose from the drain down into the pan. You will need to put a fitting into the pan, as high on the pan as possible but low enough that it is still below the turbo drain. It will be almost directly inline with the oil cooler return fitting. You will need to use a good quality hose. I have AN drain fittings and AN fittings on my oil pan and I use a #12 Earls hose between them. You cannot tap into the oil cooler line for a drain. The turbo needs a larger diameter hose. The oil in this hose will be VERY hot and is about the viscosity of a McDonald’s milk shake. It has to flow downhill on its own. If your turbo mounting is such that it cannot flow downhill to get to the pan (if the drain is below the oil upper oil level in the pan) then you will need to use a scavange pump. Tilton has a nice unit that works well with hot oil.
