Posted for "George Braly" <gwbraly@gami.com>:

 Craig,
 
 There are  a lot of variables.  But the experiment was run at a university a
few years ago on a Lycoming engine.  I saw the data.  I was surprised by how
much the 50d F drop in CHT influenced the  volumetric efficiency of the
cylinder.
 
 Regards,  George

"""
 The measure is "manifold air temperature".  If the manifold air temp is
lowered 50 deg F, then the power would increase 5.8%.  That is of course if
the proper A/F is maintained.  I believe there are to many variables to
predict what a 50 deg cylinder temp drop would do to the manifold air temp.
 
 Craig Berland
"""
 
 
 
 
 
 
 
 
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