How is it possible with the Chevy’s and Caddy’s with their pure American 6 litre V8’s didn’t get past 300 horsepower.
It seems so implausible that such a massive engine was so inefficient.
In: Engineering
In addition to better efficiency via emission controls and more precise ECMs (electronic control modules I.e. computers), modern engines are machined with incredibly tight tolerances. In other words, very, VERY small gaps between pistons and rings inside engine cylinders. Tighter spaces and smaller gaps don’t allow for the escape of expanding gasses during the combustion process result in more of the fuel/air ratio to completely do their fine tuned job. This means that there is much less energy loss.
Finally, even the engine oil used today is formulated to last longer and work harder at keeping the engine clean, lubricated, and cooler, which all reduces mechanical wear and drag. Less wear and drag = less loss of energy.
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