Juan,


Running rich of peak
aviods the peak settings that can overheat things and do damage.

Not at all true. In fact, completely false. Sorry.

Come on, Thomas. What in the world makes you think that the effects of heat
due to leaning to peak EGT at high power settings are NOT going to create
problems for the engine? This is common knowledge -- the closer your EGT
gets to 1600 degF for extended periods, the higher the chances your engine
will not reach or exceed TBO.

The absolute worst place to run your engine with regard to extreme numbers
(temperatures AND pressures) is the 50 degree rich of peak area. That is in
direct contradiction to your statement above. And that's what my comment
referred to. The key temp to manage is cylinder head temp, not EGT.

Running at peak EGT at high power settings for
extended periods -will- have a negative effect on your engine. That's why
none of the manufacturers recommend doing this.

Define "high". The manufacturer's absolutely do recomment running at peak EGT
at their recommended cruise power setting. They call that the "best economy"
setting.

--
Thomas Borchert (EDDH)