Thanks fellas for your excellent responses,I feel I should apologise for my rant since it was written just after quitting the game and I still had my knickers in a twist.

I am surprised that non CEM seems to be so inaccurate but I do fly IL21946 in CEM so hopefully I can use that knowledge in this sim.
Buzzsaw, thanks for the engine settings data it leads me to think that a sticky topic could be started with these settings for the different aircraft in game as a good reference for anyone who wants to improve their flying skills.
Thank you all