Looking for the most efficient and best proven fuel system upgrades I turn to all of you with boost-a-pumps or inline pumps. I know the Whipple kit comes with nothing, the Kenne Ball kit comes with a boost-a-pump, Radix comes with an inline pump, and I read that Lingenfelter uses a boost-a-pump with their forced induction trucks. What is the stock fuel pump rated to? Will an inline pump be able to outflow the stock pump?

A for the survey:

Which set-up are you running?
What kind of power are you making/ET's are you running?

Thanks for your help.

 

i used an inline set up. it was simple and prety cheap, pump was $120 and everything else(relay, fuel hose, clamps, terminations) was around $50. with this set up i ran an 11-1 a/f ratio with 9psi and a 75dshot on a 6.0 and didn't run out of fuel yet, with that set up i would have been in the 11.8x(ran an 11.92 with 8psi). here is a nice chart for the gss340, it seems to be the prefered pump. http://www.gnttype.org/techarea/fuel...albroflow.html

i did see the presure drop with a little richer mix so i was geting close to it's limit

from that chart you can see it will flow 50gph at 60psi, i think fuel weighs 6lb/gallon so that is 300lb/hour or aproxamately 600crank hp. you can tell from looking at this chart http://www.gnttype.org/techarea/fuel...ss307flow.html that the voltage on those first pumps was at 12volts, i am going to say the 340 is good for 60gph at 14volts and that would be more like 720crank hp.

your stock pump will not be a restriction since it only has to push a few psi to get it up to the inline it will flow more than enuff. i figured this was a good first step and that a boostapump feeding the stock pump and inline pump might be required eventualy.

i have a feeling if you went with any larger of a pump than the 340 that it would outflow the return line or regulator, i could really hear the fuel screaming thru the regulator and the presure floated around a couple of psi when idleing.

on my next set up i am going to start out with both the inline and BAP, see how far that takes me. that is if they dont come out with the duel intake 340 set up like they have for the fbodys, that would be the ultimate set up.

 

My Magnacharger kit came with a Boost-a-pump and shortly after my intitial installation the intank fuel pump went out.After replacing the intank fuel pump I called Magnacharger and they sent me a inline pump and fittings that would'nt fit on a Tahoe so they told me to continue to run the boost-a-pump until they could figure out the installation glitch.So I've run the boost-a-pump for about 4000 miles with no problems after the intank pump failure I experienced earlier.I still plan to install the inline pump but the boost-a-pump is working.I think the inline pump is the best way to go.