which fuel pump to use

[turbo 250]

hi guys,
got my new engine together now,just thinking about what fuel system would be better.eliminator 11104 or red armstrong double pumper.i have stroker kit,gn1 heads,95 lbs injectors,215/220 cam,72mm turbo and 3500 stall(400turbo with trans brake) thanks for any help

 

[norbs]

With a 20% safety factor using 95 lb injectors you will need select a pump and line to flow 94 gph@75 psi or 575lb/hr approx. I would ask armstrong the flow rates of his set up and see if they are within that spec. Within a few days i will have a fuelab pump and will tell you what i think of them.

 

[norbs]

This is a good write up on pumps. Looks like the xp pump is ok at over 14 volts

Tuning

 

[87GN_70GS]

From the graph in this post:

http://www.turbobuick.com/forums/ge...1-fuel-flow-graph-bigger-pumps-injectors.html

The 100# injector curve is close enough to 95 but is a bit more so it will give some margin. Looking at the manufacturer's published data for their pumps, there are quite a few that will cross at more than 70 psi. The Weldon 2015 crosses right at 70 psi, so it may be iffy (but if you only run 80-85% dc it should be ok). In order of increasing capacity from there:
Aeromotive A1000 - 75 psi
Fuelab 41402 - 76 psi
Aeromotive eliminator - 80 psi
SX 18207 - 81 psi
Weldon 2032A - 82 psi