Date: Sat, 08 Apr 2000 08:48:11 -0400
From: Curtis Leeds <cleedsnopsamnet>
Subject: Re: Turbo and Gas MPG...

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. The biggest variable, though, is how the car is driven.

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