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Tom wrote:
At this website they said....
"If the air valve is too big, you don't control the air flow. For example, a smaller displacement engine will only flow X
snip
" The rule of thumb for naturally aspirated fuel injection, at a standard 1.5 inches of water column, is that for every square inch of butterfly, you will flow 140 CFM.
Tom, I think the second statement is more important than the first. Specifically "1.5 inches of water column". If you drop that standard to .5", you will have more power. The throttle will lose responsiveness and control, but except for formation flying, I don't think there is any need in an airplane for the type of throttle control a car generally has. I'd gladly accept a few more ponies for the ability to perfectly trim for 180kts vs 181kts. 8*)
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