REFLECTOR: Fw: IO-550 Fuel Flow Issues and running LOP

[Scott Derrick]

Sid Knox wrote:

> This could be more than an annoyance at idle... it would be destructive with 
> take-off power!

> To run too lean, full-power, at low altitudes is begging for detonation. 
> With heavy detonation, cyl temps can hit 500F so quickly you may not even 
> notice it before it is too late.

To clarify,  running too lean does not cause detonation, it causes the 
engine to shut down.

Running between 50 LOP and 75 ROP causes detonation.  There is a bad 
range that is rich of 50 LOP and lean of 75 ROP that can be harmful to 
your engine.

Scott