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Old 09-16-2013, 09:27 AM   #80
Suberman
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Join Date: Jul 2013
Drives: Subaru BRZ Sport Tech Satin White
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Quote:
Originally Posted by DAEMANO View Post
So you're saying that by adding a turbo and driving the car faster you get a +1.5 mpg increase. Cool story b... aww forget it.
Low pressure turbocharging can make an engine more fuel efficient. Even driving aggressively results in full boost being used for less than 10% of the time. SAAB did studies in the 70's that led them to pioneer low pressure turbo charging, or at least low rpm turbocharging resulting in significant fuel economy improvements over larger naturally aspirated engines. Much to their surprise they also found fuel economy gains using the same sized engines.
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