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  1. Join Date
    Apr 2003
    Posts
    974
    #1
    Hi fellow Tsikoteers. I'm just curious whether or not turbocharged engines are less fuel efficient than normally aspirated ones. Please enlighten me. TY.

  2. Join Date
    Jun 2005
    Posts
    113
    #2
    Two reasons why they're less fuel efficient than n/a engines:
    1. Lower static compression ratio
    2. More fuel is wasted out of the exhaust to drive the turbo.

  3. Join Date
    Oct 2002
    Posts
    370
    #3
    Are you asking if NA engines retrofitted with turbos will be more fuel hungry or are you asking if factory turbo engines consume more gas then NA engines?

Fuel consumption of turbocharged engines