"john smith" wrote in message
...
TripFarmer wrote:
What is an acceptable CHT in cruise? How hot can one stay in extended
cruise
flight? I've got 6 new ones and want to take care of them.

I asked those questions to each of the Lycoming and Continental reps at
AirVenture a couple of weeks ago.
The answers I got were, it depends on the engine and the airframe in
which they are installed. You need a copy of the engine manual for your
airframe. A range will be given in that reference.
I was asking about Continental TSIO-360FB in a 1979 P28T and a Lycoming
I0-520K1G5 in a 1978 PA32.


I have seen this but never understood it. Why does the maximum allowable
CHT depend on the airframe?