I have a 2006 GT with a Magnacharger and have been running a KB Boost A Pump to get enough fuel to run the 10psi pulley with 39lb injectors. I'm thinking about upgrading to the KB 2.6L supercharger and running more boost. Where am I going to run out of fuel pressure? How much fuel will be delivered with the Boost a pump with the stock pump? The Magnacharger is maxed out at 10psi.
I believe the stocker flows at ~150 lph. The BAP will bump that to ~225. You need a 250 lph pump (or even better, two of them) if you are thinking about changing to larger injectors.
stl your a wealth of knowledge. i pretty much always wait for a response from you
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88 LX Hatch- Was fast...now parted out
06 Tungsten Grey GT- SOLD
07 Black GT- Custom Muffler Delete/BMR LCAs/Hurst Short throw/HID/Smoked Tails/Eibach Sportlines
Go to KenneBell's website. I think under the link for our cars, they explain all of this in great detail. If you are considering a KB, then that whole site is "required" reading. Heck if you are doing any supercharger the info is invaluable. Like STL said I think if you stay with the 39lb injectors you are fine. I am running the KB at 8lbs of boost and think that I can go to at least 10 with my injectors. Dyno will tell us for sure. I love my KB, but unless you are going higher on boost, why are you switching?
Paul
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2006 Roush Sport Vert Performance KB2.6L ,Roush Rear Springs, Roush Short Throw, SOS Double Pod/Autometer Boost & Fuel Pressure, Raptor in Vent, J&M APB & LCAs Appearance Midwest Auto Strut Covers and Radiator Extensions
I run 11 PSI on stock pump with BAP 39 lb injectors are fine.
I get a constant 50 PSI wehn under throttle.
I understand over 500 RWHP is about where you need to upgrade the fuel pumps and injectors.
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KB 2.4 IC, KB Stage 2, Level 10 tranny, Kooks 1.75" LT, Powerhouse, FRRP, Moroso, M/T, AFCO, Autometer, Hot Rod Chassis, ST Motorsports, Moroso, Granatelli Motor Sports, Simpson
I run 11 PSI on stock pump with BAP 39 lb injectors are fine.
I get a constant 50 PSI wehn under throttle.
I understand over 500 RWHP is about where you need to upgrade the fuel pumps and injectors.
My experience is about the same. I've been at 12psi for a long time, with the stock pump, a BAP and 39# injectors. It's been working great, but there isn't much left in that setup, though. I have decided that before I increase the boost, I'll go to a dual pump set-up and 60# injectors.
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2005 Sonic Blue, a.k.a. "BAD 05 GT", Auto Trans (and damn proud of it!) Best 1/8 mi: 6.691 @ 103.04, DA= 1,166' (2-19-09) Best 1/4 mi: 10.37 @ 132.98 (3-14-08)
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Quote:
Originally Posted by bigwilly43729
HP numbers are good and all, but they are like asking someone how much they can bench. What difference does it make if I can still kick your a$$?
I'm maxed out with the Magnacharger at 10psi. It has awsome low end torque and good HP numbers but I'm thinking about a built motor and trying to figure out what I can use and what needs to be upgraded. I'm thinking I'd like about 550 rwhp so I have a lot of upgrading to do.
2006 Mustang GT Fuel Pump Volume 
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Seriously, I just do a lot of reading.
