eli5 why trucks don’t use small displacement high revving engines

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Like, you see cars like ferrari making absurd power figures with small block engines, like a 4 liter making 800hp. Is it just a cost thing that they would rather use a 10 liter? It makes the same power, and thanks to the transmission it’ll get the same torque at the wheel.

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Anonymous 0 Comments

The ferrari engine could well cost 10x what the truck engine does. It will also burn more fuel and wesr out fsr quicker due to needing to rev so high for the same power.

The truck engine likely also has a smooth flat power curve where it almost constantly outputs 800hp The ferrari by comparison maybe only puts out 800hp at a very narrow rpm range. So to use the ferrari engine for pulling you would need q gearbox with some ridiculous number of gears or a cvt made of admantium.

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