I am thinking about installing the Walbro 394 inline pump along with my current Walbro in tank. I plan to run -10 lines to and from the tank (Just in case I plan to switch to a cell and bigger pump) so I can just neck the fittings down to fit my rail and pump (Which are both -6). The question is how do most people wire it all up? Do they leech the power from the stock pump or hardwire it with a relay?? I guess i just dont want the inline pump to start sucking through the intank pump as that would seem bad. I am assuming people just hardwire it with a relay but do they hardwire the intank as well? Do I need to be concerned about the inline overpowering the intank or anything strange? Any help is appreciated!

 

Come on Someone can help me out

 

I have a similiar setup in my GTI (stock fuel pump intank & an inline walbro 255) The intank should be able to flow more fuel than normal because it doesn't have to pressure the fuel system. The inline will do the work, the intank just feeds the inline. I would hardware with a relay.

 

Yeah I did some reading up on it and I figured out how to intank is simply used as a priming pump for the external. I guess now the question has changed slightly, the Wlabro inline doesnt seem very beefy... tiny inlet/outlets... smaller than -6. I plan to run either -8 or -10 lines so what is a good pump that doesnt cost $350+? My other question is to do the wiring... since I am leaving the Walbro intank (And the EVO Wiring is decent for the pump) should I just run the power wire from the intake to open/close the relay that would power the secondary pump? That seems to be the easiest and best way to wire up the second pump. I read up on all the hardwire crap on DSMs but it seems that it would be much easier to simply do it my way. Run a decent guage power wire from the bat to a 30amp relay, run the power wire for the original pump to the open/close on the relay and run a decent ground near the external pump.

 

Also, I guess for simplicity, is there a way to convert the stock fuel lines to AN fittings? The only way I can see to do it is cut the metal fuel line, flare it, put a rubber or braided line and attach the appropriate fittings to that... seems like a pain in my @ss to do that... any other ways?