Quote:
Originally Posted by mechman600
How about a tank of helium? Maybe helium injection would raise the exhaust note to a higher pitch. It works when I talk after sucking on a helium balloon. The higher pitched exhaust sounds would be like getting free extra RPMs.
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It would actually work as an alternative to variable geometry intake and exhaust systems. You could start with Xenon-Oxygen mix for low rpms and gradually go to Helium-Oxygen mix for hight rpms. Pity making the mixes isn't practical.
Maybe using carbon rich fuels for low rpm and hydrogen rich fuels for high rpm would have some effect.
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2016: 128.75L for 1875.00km => 6.87L/100km (34.3MPG US)
2017: 209.14L for 4244.00km => 4.93L/100km (47.7MPG US)