Been toying with the idea myself lately, don’t know if this may help but have been told that using the oil to cool the turbo from the motor may be a problem for the motor, overheating oil-starvation etc….another problem I have which you may not, is that my turbo is oil & water cooled…no water, I have an air cooled motor.
Worked it out and in the long run it’s a more practical design anyways, am adding separate oil and water tanks with pumps, just for the turbo. So nothing for the turbo comes from the motor….
Found some 12v low amperage constant use electric pumps on the net plus some really trick pit bike radiators…all up 2 pumps, radiators, tanks, timer, gauges, and some lines…about $250ish.
It solved my problem of feeding the turbo oil from the motor and also the problem of where the hell I was going to get water from to cool the turbo as well…