Dave,
    I don't know how big the fuel pump you are using is, but in my car, my
fuel pump draws over 12A at 14V. I wouldn't be suprised if the injectors and
fuel pump draw closer to 20A at higher voltages. Low impedance injectors are
only about 3 ohms each, although you usually run a current limiting resistor
of about 4-6 ohms. Obviously it matters how many injectors you will run at
once and how high of a fuel pressure you are trying to use.

Of course, if you use a fuel pressure regulator for the fuel pump, it's
power doesn't need to be voltage varaible, and it can be pretty dirty power,
just like you find in a car.

--Ian

> Dave Vanee wrote:
> >
> > Hello,
> > I'm building a fuel injector flow bench and am having trouble finding
out
> > how I should power the fuel pump and injector.  The voltage has to be
made
> > to vary between 1.5V and 16V (roughly).  Also, I think the pump and
> > injector will need anywhere from 4A to 8A (I've been looking for a 10A
> > method to be sure).

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