Has anybody ever put dual fuel pumps in their tank? I searched and found nothing. How big of a hassel is it to wire 2 pumps? Does it matter where I splice the wiring for the 2nd pump? I assume I'll have to go with thicker gauge wire from the battery.
My opinion, the dual pumps with stock fuel lines will probably not do much at all for you.
I have stock fuel lines with a Ford GT supercar pump and a KB BAP wired to run 100% all the time, and the car runs out of fuel not much above 500+rwhp. The GT's can run way above 500rwhp with the same pump. So, it has to be the fuel lines being the restriction in my car.
I have the KB Boost a pump mounted in the trunk behind the drivers side wheel well. I am also running with a Focus fuel pump, Aeromotive FPR and fuel rails with 60 lb injectors. The stock lines were retained. Remember we have a return type system.
I did not set-up my fuel system, but I was told I need at least a -8 or -10 delivery line if I wanted to go any further with hp, and a -8 to -10 return line. A -8 line should keep me safe to 700rwhp.
I will check with Aric on how he wired everything on the BAP. I know he also did some mods to the bucket like removing the hat, and fitting the hose directly to the pump because the o rings in the hat failed. He also removed the fuel anti drain back diaphragm in a attempt to help the flow some. With the diaphragm removed, i have to key on and wait a couple seconds before starting now.
One of these days I will bite the bullet and have him do a complete fuel system overhaul, but for now, I am good with what I have.
I was going to check with Aric, as he wired my car for the fuel pump and BAP. His business is closed on Sunday and Monday though. Here is a link to ask him your self by email, or talking with him. Might be better than me trying to translate what he says. He is a busy guy, so please be aware that it might take a day or two for him to respond to you. You can also talk with Ryan, and he can try and get the info you need to get it done. Tell them I sent you.
In Minnesota you can get it at just about any gas station. I pretty much never have to worry about detonation or preignition. I can run high compression, a lot of boost and no intercooler.
I run dual red armstrong walbro 255's intank I wired each with 12 gauge wiring to a separate relay for each pump. I run -10 to my regulator then out to the rails with -8 all SS lines.
I used the original wire that was the high side of the pump to trigger the relays. I'll look for some pic's