Fuel Curves
goflo at pacbell.net
goflo at pacbell.net
Thu Sep 3 15:51:39 GMT 1998
CFM = (displacement in cubic inches/1728 ) X RPM/2 X MAP/406.8
where MAP is inches of water, 406.8 "H2O = 1 atmosphere
RPM/2 because its a four-cycle (is'nt it?)
lbs/hour of air = CFM X 60min/hr X .0805 lb_cu_ft
so
lbs/hour of fuel = lbs/hour of air/ desired air-fuel ratio
Reality, as ever, is more complicated, but it's a place to start.
Regards, Jack
Bruce Robertson wrote:
> What would an ideal plot of manifold vacuum versus injected fuel
> quantity look like?
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