If you are interested, I will find out what the production sensors
ford uses
on return less systems and work on adapting them. We can drive any
external
pumps with this as well as any of the submerged pumps.
Aeromotive already sells a pwm drive module, I just don't like the
price.
Check out the pump the jegs is selling. I like the fact that you can
use an
fittings.
http://www.jegs.com/p/JEGS/1167179/10002/-1
Larry

Larry -

Thanks for your offer to research and identify specific part numbers
for:
- electronic fuel pressure sensors (for the fuel rail)
- PWM in-tank (submerged) EFI fuel pumps
- PWM fuel pump controllers

I suspect the PWM fuel pump controller (3rd item above) is implemented
in software on the car's computer.  This would mean that we'd need to
design and test a custom PWM fuel pump controller ourselves.
Hopefully there are OTS parts available for this as well.

I looked last night for about 1.5 hours and didn't come away with any
good candidate parts.

*** As a reminder, I am willing to build a test rig for a common PWM
two-tank design, test it, refine it, and publish the design and test
results.  My strong preference is to use in-tank submerged EFI fuel
pumps similar in specification to the EXTERNAL Walbro units that Tracy
sells.

I really, REALLY would like to base the design on widely available OEM
parts that can be scavenged from junkyards.

Anyone else have advice, information, or units/makes/models to
recommend?

-Vince Orton