I have seen a couple high powered engines loose
oil pressure on hard acceleration. My theory was the
oil is getting pushed to the back of the pan starving the pump suction, this included a car with a baffled 8 quart pan. Same engine going in 2nd gear steady at 6000 rpm had 60 psig
oil pressure, during hard acceleration it would drop to 50 psig before owner got nervous and let off. I told him dry sump but had no idea of the cost.