Ok...how does a oil hole in a rod bearing help with a floating wrist pin at the other end of rod? How in the hell does it help crank case pressure? What surfaces are moving against each other? The rod bearing is riding on a film of oil between the crank and bearings. I've built enough race engines to know better...
Scott
Scott
You need to calm down mr. race engine builder.
Where do you think some crank case pressure comes from? Only piston ring blow by?
Movement of everything in the short block, cam, crank, rods, oil splashing around etc. Part of it is oil being churned between two surfaces. The oil doesn't just stay put, it moves through the bearing and gets pumped/moved around. This movement causes pressure.
some rods are designed with an oiling hole drilled in them to oil the floating pins.
and by the way, i have been building engines for longer than you have been alive, including race engines.