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Old 08-27-2012, 01:43 PM   #24 (permalink)
Diesel_Dave
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Join Date: May 2011
Location: Indiana
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White Whale - '07 Dodge Ram 2500 ST Quad Cab 2wd, short bed
Team Cummins
90 day: 37.68 mpg (US)
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Quote:
Originally Posted by stillsearching View Post
Can you find me even one vehicle on fueleconomy.gov that shows the same MPG figure for a turbo engine vs a nonturbo engine if gas powered?
No, I can't...but I can show you two with improved FE. The Chevy Cruze & the Dodge Dart. It comes with the option of 2 different engines: a 1.8L naturally aspirated engine and a 1.4L turbocharged engine. Both have exactly the same horsepower rating according to Chevy (138 hp):
2012 Chevy Cruze | Powertrain & Chassis | Chevrolet

fueleconomy.gov rates the NA engine at 22 mpg city & 35 highway = 27 mpg combined. The turbocharged engine is rated at 26 mpg city & 38 highway = 30 mpg combined--a 10% improvement in FE.
Compare Side-by-Side

The Dodge Dart is very similar--two engines with the same exact 160 hp power rating: 1.4L turbo & 2.0 L NA (http://www.dodge.com/en/2013/dart/). The 1.4L turbo beats the 2.0L NA engine by 10% (http://www.fueleconomy.gov/feg/Find....32403&id=32404).


Quote:
Originally Posted by stillsearching View Post
Those are being driven about as easily as possible in the mileage loop.
Research the EPA test procedure--there's a whole lot more to it than just driving around easily in a loop.
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Diesel Dave

My version of energy storage is called "momentum".
My version of regenerative braking is called "bump starting".

1 Year Avg (Every Mile Traveled) = 47.8 mpg

BEST TANK: 2,009.6 mi on 35 gal (57.42 mpg): http://ecomodder.com/forum/showthrea...5-a-26259.html



Last edited by Diesel_Dave; 08-27-2012 at 01:51 PM..
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