Need some help - loosing oil pressure at high rpm's

[madmaxx]

Thanks, as I roll into my 5 th beer watching Auburn I am skeptical about the filter causing the dip. My pressure gauge last test was after the filter and never saw a dip. Sooooo I will try for grins but rod and mains are probably going in. Easy work. If that doesn't get it who Kobe's I will hae exhausted all avenues and will be forced to install a dummy light in place of gauge.

[blykins]

I honestly don't think it's bearing issues. If you had loose clearances, the oil pressure wouldn't just dip at 4300 rpm. You did check a couple right? If they looked new, chances are that you don't have a problem with the others.

I think you have a problem with the pickup, or the oil is not returning as it should.

If I would have been checking this, I would have bypassed all the remote filter junk and the cooler altogether. Slap a filter directly to the block, even if it is a shorty, and then see if the pressure dips.

[Rick Parker]

The more you describe your concerns the more it sounds like you are getting a vortex at the pump screen and sucking the pan empty.

[PLDRIVE]

Max follow Brents instructions (put the filter on the block). I will bet you 5 more beers pressure returns to normal.

Mark