Turbo Oil Return

[ARCTurbo]

I am currently looking at the packaging for our turbo. I am trying to determine how vertical the return line is required to be, I have been told it needs to be mostly vertical to stop any issues but I have seen some pics of other cars that have little angle on the return line and dont seem to have a dry sump or scavenge pump. I wanted to ask what are others experience with this?

Also is there a good spot for the oil return on the F4?

[ARCTurbo]

I am currently looking at the packaging for our turbo. I am trying to determine how vertical the return line is required to be, I have been told it needs to be mostly vertical to stop any issues but I have seen some pics of other cars that have little angle on the return line and dont seem to have a dry sump or scavenge pump. I wanted to ask what are others experience with this?

Also is there a good spot for the oil return on the F4?

[VFR750R]

If the line isn't vertical you should consider making it larger in diameter. Just make sure oil can't be trapped anywhere and can drain out when the engine is stopped so you dont burn up oil in the heat soaked housing. (Reason for turbo timers). As far as good place to put the drain...anywhere on the pan you can get it, although I've seen it drain back through the clutch cover with I'm assuming no performance issues. You could even go though the front or rear of the actual cases, it wouldn't be recommended for many reasons.

[CornellGixxer]

If you can get your hands on a copy of the factory drawing (either from the company directly or another team) it should give a range of acceptable angles... both pitch and roll. Off the top of my head, a good estimate is a max of 10 degrees.

Also, make sure that the oil return to the pan is high enough to prevent any accumulation of oil in the return line. The last thing you want to do is back that line up during hard cornering and force oil into your either of your housings.