Originally Posted by Captain Ned
According to the shop manual these are the specs for pump discharge pressure at oil temp of 80C:
600 rpm - 14 psi
6,000 rpm - 56.8 psi
That is for your year. His year has lower specs, but these are minimum
specs. Pressure rates will fall to these levels over many 10s of thousands of miles, not a few thousand or a few oil changes.
Here's a chart for your viewing pleasure...