Thread: Eco racing?
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Old 12-10-2023, 08:43 PM   #9 (permalink)
Ecky
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I recall years back seeing a video where a Prius was driven at 10/10 around a track, and a some expensive sports car (V8 Ferrari?) was driven right behind it. The Ferrari got better fuel economy.

Reason being, the 4 cylinder Prius engine was running way outside its efficient range, whereas the Ferrari's was just about dead center in its, driving at what was probably closer to 4/10 for that vehicle.

Mercedes have experimented with fuel efficiency in their Formula cars, using turbines in the exhaust to recover heat energy into electricity. I believe their thermal efficiency approached 50%.

https://www.roadandtrack.com/motorsp...ne-efficiency/

It helped in racing because they spent more time doing laps and less time refueling, even if the equipment to bring up the efficiency slowed it down.
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