Peter Dohm wrote:
As to the issue of Mxsmanic, I am amazed that the thread went as far as it
did before he saw most of the common proceedures as "voodoo or tea leaves."
Perhaps we all just provided sufficient dialog until all of the views were
known.

He is, of course, right. Pilots often do act on "voodoo" when it
comes to engines, and other flight details. Or at least on the tales
their CFIs told them... some correct, some not. How many times have we
had someone here say "I was told this", and half the replies are "but
no, it's really that!" It's often hard to sort the wheat from the
chaff, not least because there can be so much difference between
airplanes.

It's only fairly recently that researchers outside of the engine
manufacturers really began looking into how the motors work in
practice. And we needed those outside people because for a long time
the manufacturers had conflicting advice, or no advice at all. If it
seems strange at times to pilots, it must be doubly strange to a
non-pilot. Anyway, we all know about GAMIjectors as one example of
research. Here's an interesting read:

http://www.avweb.com/news/reviews/182558-1.html

Cheers, Kev