[Diy_efi] Need Help With Holley Pro-Jection

[Mike]

This is a common problem even with factory installations,

ie. Say you run out of petrol and the car is either not
built that well or its on a slight hill - then walking up
the road for 10L of fuel (std small carry can) thinking it
will get you to the next stop and who wants to lug 20L in
a steel jerry can 5Kms soon finds out about pump priming
issues (well, if they are technical enough that is) !

As to the former re not built well, the strainer and low
pressure fuel pump may just be too high above the swirl
pot or the strainer has the associated spring in a position
so its several millimetres above the fuel - from what I
have seen on aus.cars and other groups for last 10 yrs
or so from time to time this hastens the demise of low
pressure pumps for those people that often run their fuel
tanks into the red zone... Trouble is a failure of the
low pressure pump usually means the high pressure pump
sees an inlet restriction so operates fine up to some
50% or so engine load - as soon as you pull fair amounts
of power, the high pressure pump cavitates and engine
responds with cavitation - pity its too expensive for
all the vehicle manufacturers to have differential
fuel pressure inputs to their ECUs :(

rgds

mike



At 10:56 AM 4/9/03 -0400, you wrote:
>     If the pump is located above the fuel  level in the tank, that may be
>the problem. _______________________________________________ Diy_efi
>mailing list Diy_efi at diy-efi.org
>http://www.diy-efi.org/mailman/listinfo/diy_efi 

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