Hey Turbo Guys

oil return has to be a 45 degree or greater >3/4 inch tube gravity dump into the block (or collector) wherever the turbos is gonna sit. If it has to dump UP to the pan, it will have to be pumped as the oil gets pretty frothy leaving a turbo even if it is pressurized going in (at little volume as it gets a restrictor jet). come to think of it, I have never seen a turbo that low and how it gets the oil back to the pan. TT5.9 probably has more info on that than I do, but the Holset HX40 service manual specs a 3/4 inch oil return at a minimum of 45 degrees down.