Why is LOP (lean of peak) controversial?

Because in years past, several respected gurus of the GA field had
stated that LOP would "burn the engine up" if you did it, and
recommended running ROP. In fact, Lycoming actually recommended running
50 deg ROP at full power operation, which G. Braly's research has shown
is the absolute worst place to run. Many are probably just trying to
cover their ass for being so wrong in the past. At least that is my
take, since I believe as you do that it is either true or it isn't.
Good point.

Bud


Andrew Gideon wrote:
I'm not asking about LOP itself, but why it's so "hot" snicker a topic.
It would seem to be a simple thing to me: the cylinders run at decent
temperatures LOP or they do not. What else is there?

I know at least one person in person, and others from their postings, that
are getting success running LOP. I also know at least two persons that
think that LOP is some myth that kills cylinders. One of those two people
tells a story of someone that bought gami injectors, ran LOP, and then
cooked four of six cylinders.

What I don't understand - and what that person hasn't answered, BTW,
perhaps because he doesn't know - is why that person that "cooked" four
cylinders would have failed to see a problem immediately on his CHT probes.

So...what am I missing?

- Andrew