EFI fuel pump and water.

[Joseph Obernberger]

Jörgen Karlsson wrote:

> > So far couple propane tanks, and a $20 air compressor, how much
> > cheaper can
> > ya get?.
>
> Didn't we forget about the solenoid valve?
> ERL has a nice unit that can be pulse width modulated, but the flowrate is a
> bit low and it is expensive. It is compatible with up to 100% methanol.
>
> If pwm is not needed there are several alternatives, but I haven't found one
> below 100$
>
> Jörgen
>

If one is going to use a solenoid valve (non PWM) - could just use
a comparator type circuit (connected to boost pressure sensor - or throttle
position sensor) to trigger the valve.
Guess the pump would have to be controlled via some sort of pressure switch, and

perhaps turn on when the valve opens (under boost or whatever) as well.
I'm enjoying this thread.
                                                    joeo


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