Fr3AkAzOiD -
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Originally Posted by Fr3AkAzOiD
Don't know how 3,000+ lbs is light when the Cobalt was 2,700 lbs and I still consider that overweight.
Wonder why they went with an iron block instead of aluminium?
Still.....42 mpg highway isn't bad.
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I don't like the iron block either, but maybe it's to make it more durable in tandem with the turbo?!?!?!?! Here's a blurb from the URL that MetroMPG posted :
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Efficient powertrain
Cruze Eco is powered by power-dense Ecotec 1.4L turbocharged engine and a standard six-speed manual transmission. The transmission's gearing is optimized for the model's specific 17-inch wheel/tire combination and includes aggressive ratios for first and second gear coupled with a highly efficient, "taller" sixth-gear ratio for highway driving. That means engine rpm is reduced on the highway, which in turn reduces fuel consumption. A six-speed automatic transmission is available, with EPA-estimated fuel economy ratings of 26 city and 37 highway.
The Ecotec 1.4L turbo's power ratings are 138 horsepower (103 kW) and 148 lb.-ft. of torque (200 Nm) between 1,850 rpm and 4,900 rpm. The wide rpm range for the maximum torque – a specific trait of turbocharged engines – helps the engine deliver a better driving experience and performance. The turbocharger is integrated within the exhaust manifold, for reduced weight and greater packaging flexibility.
The engine also features premium design elements that give it world-class smoothness and durability while also contributing to the Cruze Eco's lower curb weight. They include a cast iron block with a hollow frame structure, hollow-cast camshafts and a plastic intake manifold.
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CarloSW2