Originally Posted By: bdcardinal
Depends on the RPM and the engine. One of the HiPo builders for the Ford Modular engine made fibreglass timing and valve covers and watched a DOHC engine running at ~6k RPM force all 6 quarts up to the heads within a few seconds.
That can't be. The oil pump pick up screen must be submerged at all times or there will be an oil pressure loss.
Quote:
Many engines do have some splash lubrication, where the crankshaft splashes oil onto the cylinder walls at the very bottom of the stroke.
Does it? Any crankshaft splash into the oil at, say, 5000 rpm would cause immediate foaming of the oil and possibly damage the crankshaft...until the oil was too foamy to either be carried by the crank or too foamy to pump by the oil pump. Yes, oil is flying everywhere, and oil droplets in suspension will be whipped around by the moving parts. But hard parts dipping into the oil laying in the sump? I thought the 1954 pressure lubricated Chevrolet ended that.