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I'm glad to see George B. entered our discussion.
I have two comments that I would enter for our readers
consideration.

First, John Deakin's article "Those Fire Breathing
Dragon's" used GAMI data and charts that were based on an
0-470 nonturbo engine.
George, in his comments to the List referenced a TIO-540
(Lycoming).
I maintain that while the comparison is not oranges and
apples, it IS green cooking apples, to Golden Delicious
apples.  
I maintain that George's statement that-- given the
conditions of 100 degrees ROP, 100 L. L., hottest CHT
420F, "will run one or two cylinders continuously in
light detonation, as measured by the FAA's current
detonation criteria" --IS NOT necessarily applicable to
the TSIO 550. Even individual model numbers (B vs E)
engines or early cylinders vs late model cylinders may
skew the data. And even engine to engine configuration
(intake turbulence due to pipe misalignment etc. etc.)
would negate the comparison.
Secondly, no reference is made in any of the comments as
to longevity and life expectancy of cylinders operated
at LOP. I doubt that operation LOP (without additive
insertion (MMO)) will ever equal (hours) at ROP due to
the aforementioned lack of upper cylinder lubrication.  
Here again, data collection needs to be from like make-
model.
Even George requires data from YOUR engine prior to
selling you GAMI injectors.

Charlie K.

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