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Date: Sat, 08 Apr 2000 20:17:21 -0700
From: TimeRangernopsam.com
Subject: Re: Turbo and Gas MPG...


On Sat, 08 Apr 2000 08:48:11 -0400, Curtis Leeds <cleedsnopsamnet> wrote: > >Four Weis wrote: > >> Turbos use the exhaust gas to spin a shaft which powers a "fan" to pump >> fresh >> air into the engine. This allows more air and fuel to be fed into the >> engine >> for more power. >> >> This give you more power, but will reduce mileage, if you base it on the >> same >> engine. > >This may sound logical, but it's mistaken. The equation is >not nearly so simple. If a turbo increases an engine's >efficiency, then it will result in higher gas mileage. And >turbos do increase efficiency, because (unlike a simple >supercharger) it converts what would have been wasted >exhaust heat into energy. Turbos do not use the heat energy but the pressure of the gasses being exhausted to turn the fan. More fuel is NOT necessarily fed to engines that are fuel injected. -- "Our eyes and hands and feet will give us the same assistance in doing mischief as in doing good; but it would not therefore be better for the world, that all mankind were blind and lame. Arms are not to be laid aside by honest men, because carried by assassins and ruffians; they are to be used the rather for this very reason." -George Campbell (1719-1796)

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