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Pearlj10 · 02-01-2021, 10:04 PM

Thanks for the response folks. The light bulb finally clicked for me, I think. I had been too worried about pressure on the low side but wasn’t thinking enough about volume from the low side. Makes sense if the volume is low at the tank that the HPFP wouldn’t be happy. I ordered the ZL1 pump and an access door. If only I had foresight to do the in tank pump upgrade when I did those rear cradle bushings, upper control arm bushings, yada, yada. I’ll post back on how it goes. My glass is half fuel (pun intended) that more volume will equate to higher pressure at the rail.

02-01-2021, 10:04 PM	#5
Pearlj10 Drives: 2011 Camaro 2LT Join Date: Oct 2018 Location: Az Posts: 369	Thanks for the response folks. The light bulb finally clicked for me, I think. I had been too worried about pressure on the low side but wasn’t thinking enough about volume from the low side. Makes sense if the volume is low at the tank that the HPFP wouldn’t be happy. I ordered the ZL1 pump and an access door. If only I had foresight to do the in tank pump upgrade when I did those rear cradle bushings, upper control arm bushings, yada, yada. I’ll post back on how it goes. My glass is half fuel (pun intended) that more volume will equate to higher pressure at the rail.