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.  

Tracy

Sent from my iPad

On Jun 17, 2011, at 12:36 PM, Ernest Christley <echristley@att.net> wrote:

> I figured out how to use a spreadsheet and graphed the MAP based on RPM.  Results below.
> <blower_efficacy.png>
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