any boaters out there?

[mrvette]

Correct, but I used the hi-pressure pump down in the bilge area, with the same
fuel line on the suction side as went to the mech. pump on the stock carb.
setup....so it was fire line,  true that FI pump was poor on suction side,  but
being real low and rite next to tank,  it worked well anyway....now the hi-side
was run through aeroquip  1/4 or 5/16  double heavy fuel hose....rated for an
oh-my-god pressure and run at ~40 psi engine off condition....return line
similar....

I consulted tieh an engineer with the USCG in wash d.c. on this, lookig for
input on safety, and what the USCG / BIA requirements were,  and in spite of my
descriptions here,  I followed allthe rules....:-)))  GENE

Jack Boatman wrote:
> 
> Keep in mind that an automotive type "high pressure" fuel pump in the tank
> is NOT considered safe.The problem is that with pressurized fuel lines any
> crack, pin-hole, etc. spits out fuel. In a car it goes on the road (~safe).
> In a boat it goes in the hull (~not safe). Also, no recirculation from the
> pressure regulator back to the tank for the same reason.
> 
> Typically two fuel pumps are used; one is a higher volume, lower pressure
> "lifting pump" that gets the fuel up to a mechanical or electrical
> high-pressure pump that supplies the rail. The "high-pressure" run is made
> as short as possible using very robust materials.
> 
> >From an engineering perspective, it is a pain to work with. Vapor lock is a
> real issue. However, safety first.

-- 


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