One thing no one has mentioned is LOP may not be possible with
carbureted engines. The flows to each cylinder just aren't consistent
enough to make it work. Also you really need CHT and EGT guage on each
cylinder to do it right. The problem with LOP, isn't running LOP, its
that you are running peak and THINKING you are running LOP. The same
could be said of running rich of peak too. Running AT peak is really
only a problem at higher power settings. So most of this LOP stuff is
really for turbocharged fuel injected engines. I said MOST. Some people
with just fuel injection use LOP and a FEW at least claim to use it
with carburetion.

LOP works, but I think you have to really know what you are doing and
have the right equipment. But if you are running at 65% power or below,
it doesn't hurt to try it, no matter what sort of equipment you have
(unless of course you dont even have a mixture knob :-))

Thomas Borchert wrote:
Andrew,

So...what am I missing?


The inertia of the pilot population, myths, misinformation, engine
manufacturer's law departments - all factors. "Show me the numbers" is
the old trick to silence the LOP opponents. They can't.

I take it you are familiar with John Deakin's columns on the topic and
engine management in general at avweb.com?

--
Thomas Borchert (EDDH)