Fuelabs pump issues

[Mike69Cam]

Thanks...Agreed...it looks like we are going to move the pump inside the tank and make sure we have the right "gravity" set up. Keeping pump submerged and cooler seems to work best. Also runs a bit quieter while in the tank.

[JohnUlaszek]

How is the cell vented? Its pretty common to have pump problems and supply issues when air is not entering the tank as you are using fuel. Often manifests as “vapor lock” and eventually a dead pump because it causes cavitation. Also, do you know how hot the fuel is getting?

[572Camaro]

John is exactly right.
How is your tank vented?
When the pump air binds, pull your fuel cap and see if the fuel tank is in a vacuum condition.
What is the fuel pump inlet hose/tubing size?
I hope it’s a minimum of 1/2” diameter

Once we figure out root cause, please consider mounting pump in tank so long as it is submersible.
In-tank pumps are quieter, run cooler, and eliminate undercarriage clutter.

(I run Aeromotive pumps in tank and have no regrets. My car is “Jim and Geralyns Camaro now on lat-G car features)

[pannetron]

I went through two in-tank Fuelab pumps before I gave up and revised my tank and fuel system to use a GM CTS-V pump module and VaporWorx controller.