I am not sure what an ideal temp is, and I also don't know the accuracy of the spektrum TM1000 telemetry and sensor, so its a little guesswork. I know some guys were attaching really accurate/sensitive probes during running in phases. But not seen much in-flight records.
I have mine in a Yak-55M. I chose a cheap, easy flier as a platform to get the engine run in, the cooling sorted out, and without spending money on an expensive, heavy warbird.
Its eventually going into a Bearcat.
Personally I think 340F (170C) is too hot...
Last edited by cathurga; 04-19-2016 at 10:37 AM.