thats because the ecoboost has twin turbos so you get a long flat torque curve. The naturally aspirated engines are usually a sharp curve at screaming rpms. Hardly anything anymore makes its power below 5000rpm, thats probably why the fuel mileage sucks on most new engines.Make an engine that makes peak torque at about the same rpm as normal cruise speeds and I bet the mileage would be a lot better.
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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