QUESTION: Paul, I have a Lycoming 0-235C1B installed in a Piper Colt. What are your feelings about an STC to install either an 0-290 or 0-320 engine in this aircraft? Please share: Continue Reading →

QUESTION: I operate a IO-540C4-B5 in an experimental. I am wondering about the correct position of the mixture lever after idle cutoff has been selected. Should I leave the lever in that position, or should I advance it (after the... Continue Reading →

QUESTION: It seems that most automotive engines can be boosted in power to approximately one horsepower per cubic inch (obviously at the expense of reliability). Would it be possible to boost a Lycoming 720 engine to, say, 500 or 600... Continue Reading →

QUESTION: I’m fortunate in that, in addition to giving glider rides, I’m able to fly the tow planes for a couple of glider operations. The tow planes are CallAir A-9s and Pawnees. All are equipped with O-540s. One of the... Continue Reading →

QUESTION: I have a 1969 Skyhawk with a Lycoming O-320-E2D engine. I think it is an excellent engine. I would like to update to a 1975-1980 Skyhawk. I heard Lycoming had trouble with engines in 1977-78. Is that true? What... Continue Reading →

QUESTION: I own a 1968 Cherokee 140 with a 160 hp O-320-D2A engine that was installed prior to my purchase of the aircraft. According to the logbook endorsement and the tach installed in the aircraft, the redline on the engine... Continue Reading →