Quote:
Originally Posted by Isaac Zachary
I'm not so sure about that. Seeing how I seem to get better fuel mileage by pulse and gliding, which is essentially making the engine run at a higher load on purpose, even in a 4,000lb car with a little 2.5L 4 cylinder engine that at my altitude is producing around only 100hp max, I do believe that there's better fuel mileage to be had by sizing an engine so it runs at an even higher load for the average driver that isn't going to be pulse and gliding all over the place like me.
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So, to test your claim that smaller engines give better fuel economy. You would suggest that a 600cc motorcycle engine would return great FE numbers in real world use when installed in a minivan?
Also you would suggest that a 7000cc engine in a Corvette would get poor fuel economy in real world use?
Or maybe it's the other part of the claim... that there are many other variables. Vehicle size, aerodynamics, transmission, hybrid?, city or highway use, towing, tire/wheel size and selection, 2wd/4wd/awd, curb weight, etc.