Forum: Liquid Lounge
it's a simple equation
Larger engines can get HP from cubic inches instead of compression.
higher compression means faster wear, everything else equal,
overtaxing the engine without enough HP
(e.g., wing load of 6 kayaks while driving 80 mph over a mt interstate like I79 in WV)
means faster wear.
Of course low volume, high comprression engines also generally are more efficient.
Particularly (not generally), there is a lot that can be done to make engines more effficient without making them wear out too much faster like having them breath better, a preignition lubrication of engine parts with an electric oil pump and just machining to better tolerances.