This is actually a split off from the "Rotating Injectors Among
Cylinders" thread. I prefer not to distract that thread any.

I must say that I find the evidence presented in support on LOP to be
uncompelling. Although it is certainly appealing at the gut level, it
is a far cry from scientific evidence that LOP operations is better for
the engine and will lead to longer TBOs.

I am not saying that the assertion is false; I am saying that I have yet
to see properly controlled long-term experiments that prove the
hypothesis that is so emphatically stated as truth.

I hasten to add that it does not appear that the engine manufacturers
have done any scientific experiments to suggest that ROP operations lead
to longer TBOs or better operation. This is what I find so frustrating.
So much depends on quality information about proper engine
operations, yet there appears to be little science behind the assertions.

OK, I said my piece. I am done venting now.

-Sami
N2057M, Piper Turbo Arrow III