Originally Posted by madscientist
Originally Posted by BIG DRAG
Excessive side clearance will cost hp from excessive windage in the crankcase, it will also lower oil psi due to the clearance being larger. The oil has to go somewhere. I wouldn't bandaid an issue with loose rod side clearance.



This just isn’t true. Side clearance has zero affect on oil loss through the bearing. None.


Then why is it that when bearing clearance is excessive that oil psi goes down? Clearance is like a controlled leak, more clearance more leakage.

This has been my experience.