In article ,
says...


Why do turbocharged piston props seem to be so rare/unfavored? Don't they
provide a substantial advantage over normally aspirated engines?


This only "seems to be" true for someone who has not researched the
subject. In virtually every case, when a standard piston model gets a
turbocharged upgrade, the "turbo" version outsells the normally aspirated
version by a healthy margin. They are extremely popular and common.

http://www.flyingmag.com/pilot-repor...-turbo-skylane