Hi Mr Jabs,
Just curious as to why LOP is not recommended above 75% power. I would think that cht and egt would be lower regardless of cyl pressure?
Not by anyone who really knows what they are talking about. In fact you can make an engine run at 100% power LOP, given a Turbocharger and some control of MP and a few other things. It will do very nicely.
As you have correctly pointed out, the CHT's would be fine and that is because the ICP's would be fine. Better than doing it ROP.
It must be stated this is not possible to achieve (100% that is) on a NA engine but you can and I do if at 1000' up the coast run in the mid 80's as JD has detailed above
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