I suspect the cause of all of this would be that when the higher compression ratio pistons were installed, the carburetor was never compensated to provide a higher fuel ratio to support the higher horsepower being taken out of the engine.
With aircraft engines, there’s no such thing as a free lunch
by Paul McBride | Jul 3, 2022 | #Aircraft, 20220707, Ask Paul, Aviation News, Engines, flying, General Aviation, Lycoming Engines, Opinion, Pilots | 0 comments