Ebay GT45 + 5.9 Magnum + E85 blow thru
I installed a digital fuel pressure gauge and learned that my pressure is dropping to as low as 30psi under lite boost. After checking all my lines for leaks, removing the fpr built into the Fitech and blocking it off I determined my issue was with the new Quantum 380lph pump. Opened up a support ticket with the EBay vendor and they said they would send me a new one. I also went ahead and ordered the latest AEM 400lph pump rated for E85/E90. Both arrived today. Hats off to the Quantum guys. Great support. I decided to install the AEM. Dropped right in place, confirmed all my fittings were good and leak free and went for a test drive. Guess what? Pressure still dropping. Base is 58psi and briefly goes to 60 under boost and then starts to drop. So, something else is going on. Not sure. My new gauge sucks, bad elec connections, the FPR? Don't know.
I installed a digital fuel pressure gauge and learned that my pressure is dropping to as low as 30psi under lite boost. After checking all my lines for leaks, removing the fpr built into the Fitech and blocking it off I determined my issue was with the new Quantum 380lph pump. Opened up a support ticket with the EBay vendor and they said they would send me a new one. I also went ahead and ordered the latest AEM 400lph pump rated for E85/E90. Both arrived today. Hats off to the Quantum guys. Great support. I decided to install the AEM. Dropped right in place, confirmed all my fittings were good and leak free and went for a test drive. Guess what? Pressure still dropping. Base is 58psi and briefly goes to 60 under boost and then starts to drop. So, something else is going on. Not sure. My new gauge sucks, bad elec connections, the FPR? Don't know.