I would like to install a dual pump assembly from an L into my 97 f150 with a 5.4( future mods planned ). does anyone know if this is a simple drop in? do you have a part number? is the assembly 4 wire or just two that splits inside the tank? i intend to use Walbro 255's as a safety measure. Also, who makes larger fuel rails for L motors? My future plans are for a s/c install and i want to play it safe for fuel delivery.
Yes i wish i had an L like you but i have to settle with slowly piecing together my own.
Thanks for any help!

 

no help? anybody?

 

not sure but I think the pumps are controlled seperately. I know that the L's have 2 pump relays & a hi/lo relay- the one that controls the second pumps power. A resistor to control the pump speed and pressure (the hi/lo relay bypasses this resistor for hi speed full pressure).

BTW the stock L rails are good to 450-500+ rwhp with a good set of injectors.

 

i know if this gets off the front page there isn't much hope for a reply....so...bump again!