Quote:
Originally posted by daepp
Engine gurus - all other conditions being equal, can the additiion of a turbocharger improve efficiency and mpg? Does the capture of the heat and exhaust and harnessing it for better induction lead to hgiher efficiencies?
Now I know most everyone on this board was put that additional power to use and save no fuel at all, but if it does lead to higher efficiencies why don't auto makers use them to increase fleet mpg?
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No, a turbocharger, if used will increase fuel consumption. The only higher efficiencies obtained would be horsepower and torque. If one stays off boost, the engine will consume as any other similarly displaced engine. One must take into account the bottom end when considering forced induction, as it may not be strong enough to handle the combustion.