Originally Posted by mrfred

Not at 570 whp yet, but hope to be there eventually. Currently around 535 whp. I can monitor rail pressure and can see net injector pressure falling off under high flow, high boost conditions due to the relief valve being triggered. My guess is that the new high pressure relief valve W450 at 14 V is good for maybe 575 whp before it can no longer sustain 3 bar rail pressure.

Originally Posted by Wiznaz

Are you referring to the F90000274 pump with 115psi relief?