Guptar:
The new TCM IOF-550N FADEC looks great and on paper shows promise...
That is until the extra engine weight is noted, then the ruputed extra huge price increase..........
Now if TCM had the balls to increase their TBO on the FADEC to match their machismo about the new engine then it would be worth while.
I'd consider a new aircraft or a retrofit aircraft with a 3000+ TBO FADEC - even for another US$10-15K.
I've operated heaps of Lycoming and TCM engines, all were about the same when operated by a good Pilot. (slight agreement with OpsNormal that a few more $$ went into the Lycomings).
However, TCM get the biggest black cross when it comes to support. Their published warranty may as well be 20 years but it means little when it comes to a claim......