Some manufacturers believe a 500cc cylinder is near the ideal. Giving a good balance of smoothness, power, emissions management and economy.
Interestingly, larger cylinders are more thermally efficient and have lower piston ring swept area. Leading to better economy. A lycoming 5.125 inch bore engine designed in 1960 can reach thermal efficiencies of Toyota’s best today, due largely to the above.
In the end, I like high boost or V8’s.
Interestingly, larger cylinders are more thermally efficient and have lower piston ring swept area. Leading to better economy. A lycoming 5.125 inch bore engine designed in 1960 can reach thermal efficiencies of Toyota’s best today, due largely to the above.
In the end, I like high boost or V8’s.
