low lift pump pressure

[turboram]

Has anyone had experience with low lift pump pressure causing pump tie up? My regulator malfunctioned and was only delivering 4psi of pressure. Then my pump tied up and left me and my family stranded 4 hours from home
I am putting another pump together tonite and want to make sure this was the issue because we rely on this as our daily driver until we sell it and i build a new one

[RCCUMMINS89]

Even with 4 psi, your pump would be fine.

[turboram]

Could it be from the pump being turned up all the way and stock injectors ? Just seems odd it was running fine then boom

[RCCUMMINS89]

Apologies, I was in a hurry when I originally posted.

What do you mean by tied up?

As far as fuel pump pressure, as long as there is at least 1 psi no injection pump damage will occur, unless one is draining their case pressure. So unless you are running humungous injectors and working it very hard they don't really need much for fuel pressure. The internal vane pump does a tremendous job. Now with good pressure, it doesn't have to work as hard, etc.... Also I notice a pump being a little more responsive with a little higher pressures than stock.