PakProtector
Veteran Member
The VE Cummins folks have tapped into the pump so that the input shaft seal is not under pressure, and then boosted the inlet pressure to levels you mention. Not quite sure how, but there ya go...maybe pump element filling becomes an issue?
with less power from the larger nozzles from the smaller ones efficiently using the limited fuel available from the pump vs raw flow volume
Makes me wonder about running significantly higher case pressures.
Rework the shaft seal out front with proper hydraulic packing instead of having inlet pressure against the back side of a lip seal and set up the power steering pump as a higher pressure fuel pump to deliver 200psi of inlet pressure, case pressure regulator and transfer pump should bump that up to something like 5-600 psi in the pump.
cheers,
Douglas
now putting a 12mm P7100 4-pot pump on it would be insane.