LYCS - What does LYCS stand for? The Free Dictionary
References in periodicals archive
But the big performance change for the Seneca II came in the power-plants, with the four-banger Lycs
giving way to six-cylinder turbocharged Continental TSIO-360-E engines with fixed waste gates.
Still, Diamond knew that the 180-HP Lycs
were a good match for the DA42.
I think the early Mooney M20J or M20F models with a Lycoming four would have been a more appropriate comparison considering that most of the small Lycs
do quite well LOP even in stock form.