I imagine some of the difference is due to weight (larger engines being in trucks) or performance (sports cars made to accelerate rather than cruise well), but it seems that almost without fail the bigger the engine the less MPG, I don’t understand where the extra energy goes if not to the wheels
In: Engineering
> I don’t understand where the extra energy goes if not to the wheels
It’s lost through friction and heat
It is possible to engineer engines to be more efficient at all kinds of configurations, but it’s a numbers game
It’s not worth making an engine that gets 2 mpg more if it is ten times the price of the 2 mpg worse engine, which is kind of what F1 does with its 1.6L V6 engines
They have and had complex systems to recover energy from the engine that normally would be lost, but they are and were so complicated and costly to produce that teams want to get rid of some parts. You can read up on the MGU-K and MGU-H for more information on those, but I digress
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