I have installed a wet sump 454 BBC in my Studebaker. It appears that the oil pressure is deteriorating during the 1.3 mile run at El Mirage. My peers have said most of my oil is going upstairs, and is filling the valve covers. I have Moroso .062 orifices in the oil gallery's going to the rockers. Does anyone know how much oil flow can go through a .062 orifice at 70 psi or so?
Both valve covers have breathers, and there is no indication any oil has backed up that high.
Currently I don't have any drain back hoses, however I could put some in the valve covers at the front of the motor, and drain back to the Mark IV fuel pump hole. Or pull the pan, and weld on bungs..
I am also concerned about the windage that is created by the oil return in the valley dropping down on the spinning crankshaft. I am thinking about closing up several of the casting holes in the block, and using the one at the rear most location for drain back. Any Suggestions would help. Thanks #352 yellow Studebaker...