"TripFarmer" wrote in message
...
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.


Thanks in advance.


Is yours a turbo? What displacement?

Check out John Deakin's "Engine Series" at
http://www.avweb.com/news/columns/182146-1.html (specifically #'s 8, 18, 43,
63-66).

Never more than 400 degrees and typically at 370-390.