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Tracy wrote:
Where is the pressure being measured? Very strange if this is a graph of your actual Manifold Pressure. Is it? I can't think of any scenario where the manifold pressure would remain almost constant from 1000 to 5500 rpm unless the prop presented almost no load to the engine. Even assuming that, I can't see why the MAP should be higher with the blower on.
The video that I linked to last night...notice how the airplane didn't move?...very little load. Best it could do was blow over the fan I had setup for the cooiling intake. My big goal for the weekend is to get more pitch into this prop so that I have something resembling a load.
Why wouldn't you expect the map to go up when you have a blower pressurizing it?
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