Smoke out of the exhaust.

[Ivan141]

Basic AE86 knowledge.... during prolonged g-forces going left, the oil gets slinged to the right side of the engine (viewed from the drivers seat). The oil does not drain down from the cilinder head fast enough and starts overflowing through the crankcase ventilation. This would cause the car to lay smoke screens of burnt oil. It's also the reason why later smallport engines have an external oil return pipe to aid oil drainage from the cylinder head.
I've seen people switching the cam covers around so that the crankcase breather hose is more to the middle of the engine.. this will stop the oil from escaping into the intake.. an oil catch can will also help. Eventually, it might be dangerous for your engine to keep going sideways for so long, once there's not enough oil left in the sump, it's bye-bye engine time. Jasper or P-Nut can probably tell you if this ever happens in practice since they have plenty of experience with drifting ae86's already.