just for ***** and giggles and to stir up the pot. My 12v ran like 80-100 when cold and like 40-60 when warm. I would think 40 would be perfect. I think feeding a turbo is more of just making sure you have oil to it. Cummins spec for oil pressure is min 10psi. So if the turbo can last with as little as 10psi i think you are good to go
Cool thx! Yep my 24v Cummins cold ran same as yours. It was always said if you used cheap oil filters you'd pop a hole in them with the pressure. I never tested it myself out of fear, but I have seen pics to support it being true