I need more fuel and I know it. I have bought a 255lph inline fuel pump and a Kenne Bell voltage booster.
The question: If I install the inline pump and hook the voltage booster to it, how can it feed more fuel than the stock pump since the inline pump is relying on the stock pump to feed it fuel? I was told, by someone who should know, to hook the Voltage Booster (VB) to the inline pump and leave the stock in tank pump alone. Seems to me the inline pump with the VB hooked up would suck the line dry before the stock in tank pump could feed it more fuel. Am I way off here?

 

you need to suck it up and put a intank pump.

 

You will be fine with just the inline pump. Im going to be using the same pump and 43#ers for my new setup and I think Ill be fine. If it was me I owuld hook the VB to intank pump. The inline pump can handle itself without a voltage boost.

 

Can I hook it up near the tank or what? I was told by another person that you need to be within 12" if the pump because the wiring harness won;t hold the voltage for very far. Do I tap into the fuel pump wiring right as it goes into the tank or what? I have no directions as Magnacharger only sells their Magnavolt now and I have the Kenne Bell boost a pump. Anybody know where I could find a schematic or the wiring for a Chevy fuel pump to Kenne Bell?

 

Foudn this real quick.



Got it off this website
http://www.kennebell.net/accessories...boostapump.htm

 

I wonder why all the ones I have seen have a boost **** for in the cab and mine has a boost switch nder the hood that activates at a preset 3#'s or 3000rpm? I like the underhood switch better, just wondering.

 

Where can I find out the LPH rate of my stock fuel pump. My Tahoe is a flex fuel "Z" vin so the pump is different than most. Any dealer empoyees on here that can look it up? VIN 1GNEC13ZX2R133495

 

From what I have heard, the main pump supplies enough volume and pressure for the stock truck plus more.
Its when you start pushing higher horsepower levels that you need more pressure to feed the motor, the stock pump will supply enough fuel to the in line pump and the in line pump will boost or keep the pressure at a high enough level to feed what the motor wants.
Some pumps are better at suppling volume and some better at pressure.
The in line just ensures that there is no lag or pressure drop when you need it the most.

 

Well my fuel pressure gauge never dropped. Ok, it dropped by a pound or two at the very top 5800rpm. That was on 38# injectors. The ford 42# which are more like 49#'s at GM pressure will probably cause my pressure to drop more even if they are open less time. I would really like to avoid the Boost-A-Pump if possible. Has anyone just added an inline 255lph pump to a stock pump and made 500+ rwhp? I'm pretty sure the stock pump in my truck is beefier than most because I had bigger (38#) injectors stock and my rail pressure was at 50psi at idle and jumps to 62psi at WOT. Hell, maybe they're the same pumps and the injector size is causing the different readings between mine and everybody else who get 58psi at idle. And what's all this hoopla about boost referenced fuel pumps? Do I have one? Screw it I'm putting a 3 million lph pump in the tank.