oil pumps (not efi)

[Dave Williams]

-> > With the same spring, both the standard and high volume pumps will
-> flow >the same amount of oil at the same running pressure.  None of
-> the "high >volume" ever makes it out of the pump.

> This is true, but with all else equal, the high volume pump will
> develop more pressure at a given RPM, hence it will pump more oil,
> simply because its pumping more volume through the same clearance
> space.

 No additional oil is *getting* to a clearance space.  It's never
leaving the pump.  The only way you're going to move more oil through
the bearings is to increase the pressure.