If you monitor a real-time data log under WOT acceleration from a stop or near stopped, the oil pressure will dip.
The issue is that the deep sump of the oil pan is at the rear like it should be BUT, the oil pickup tube is at the front of that rear sump.
Under peak acceleration three things happen. The oil pressure/flow is ramped up which sucks more oil from the pan, the oil runs to the back of the pan away from the pickup, and the pump picks up a gulp of air and the pressure drops.
As the initial hit acceleration and pressure increase settles, there is no longer a problem potential. However, there’s been much discussion on this phenomenon in other threads.
At first I didn’t think much of it, but after I logged it myself, I see there is a definite potential for a bearing problem, ESPECIALLY if the oil level is even a little low. The problem was identified by Adam (
@zfgracing) who discovered the issue while tuning drag racer engines. He “fixed” it by adding a 1/2 qt extra oil. There is now an aftermarket oil pan that fixes the potential for momentary oil pump cavitation and bearing failure. Try the link I posted above.
A forum member (I think it was
@Gsteve) spun a bearing that was likely caused by this issue.
