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Re: CIS Cheap Power
In a message dated 97-05-12 21:59:37 EDT, you write:
<< Now, wouldn't the mixture get _lean_ if you shove more air into the
engine while keeping the fuel flow constant?
No, not exactly. Fuel flow is NOT a constant. Atmospheric pressure is on
one side of the flap, vacuum on the other. Po (Atmospheric pressure) is a
constant, the flap raises (richening mixture - increasing fuel flow) as
vacuum increases the flow of Po by the flap. Fuel flow is a variable in the
CIS equation, not a constant. Po, cone pitch and dia are the constants, not
fuel flow. I suppose, once you reach the limit of fuel flow you could make
that argument, but that's a pretty high threshold, and the rest of the time,
rich is the ticket.