Neil -
Quote:
Originally Posted by NeilBlanchard
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I thought I had heard that they originally wanted to use a purpose made 1L aluminum engine, but shelved it to save money; and used the "off-the-shelf" 1.4L cast iron unit? I am still hoping they go this route...
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I forgot it was cast iron. Here is the current Volt engine :
GM Family 0 engine - EcoFLEX
Quote:
The EcoFlex engine is a version of the TwinPort tuned to provide better fuel economy and lower emissions. The 1.4 L engine was introduced in 2008 and 1.0 L engine in 2010.
1.0 L Straight-3 (998 cc): 73.4 mm (2.89 in) bore, 78.6 mm (2.94 in) stroke, 10.5:1 compression, 64 hp (48 kW) @ 5300 rpm, 66 lbs.ft (90 Nm) @ 4000 rpm.
1.4 L Straight-4 (1398 cc): 73.4 mm (2.89 in) bore, 82.6 mm (3.3 in) stroke, 10.5:1 compression, 130 N·m (96 lb·ft) @ 4000 rpm, 87 hp (65 kW) @ 5600 rpm or 100 hp (75 kW) @ 6000 rpm
For model year 2012, the EcoFlex engines have been updated with double cam phasing (DCVCP) in a 'Gen III block.
A special version of the EcoFlex 1398 cc engine delivering 85 hp is used in the Chevrolet Volt/Opel Ampera.
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And the Cruze Eco version :
GM Family 0 engine - Turbo
Quote:
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Opel and US-market Chevrolet versions of the Delta II platform compact cars use a turbocharged version of the 1.4 L engine with double variable cam phasing (DCVCP); in the future, an optional gasoline direct injection system will be introduced.[1] This small turbocharged engine delivers the performance of much larger naturally aspirated engines while maintaining fuel efficiency of a small engine. EPA estimated highway fuel economy is 42 mpg.[2] Opel versions feature Start&Stop system from 2011 and a Gen III block; a lower-power 120 ps version has been introduced as well.
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CarloSW2