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Old 09-12-2009, 09:27 PM   #1
Charlie
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Default Video: Driving the Saturn Aura HCCI Prototype at GM

A new story entry has been added:

Video: Driving the Saturn Aura HCCI Prototype at GM’s Milford Proving Grounds

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From HighMileage.org: Adam Barrera and Vijay Ramappan test a Saturn Aura equipped with Homogeneous Charge Compression Ignition (HCCI) on GM's super-secret Milford Proving Grounds. A Chevrolet Volt mule even makes a cameo appearance! See the annotations for important highlights and facts.
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Old 09-13-2009, 12:52 AM   #2
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Default Re: Video: Driving the Saturn Aura HCCI Prototype at GM

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MAn That is incredible. Gas running like diesel, Wide ope throttle body with air and fuel controlled by computer and valve opening duration. Efficiency of a diesel and performance of a gas engine all the while running gasoline, E85 or Ethanol. Amazing. But will Penskee be able to use the technology or just GM?

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Old 09-13-2009, 11:56 AM   #3
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Default Re: Video: Driving the Saturn Aura HCCI Prototype at GM

The MPG gains aren't any better then a Hybrid. If they were running a V6 in the Aura, wouldn't they get better fuel economy with a 2 cylinder shut down like on the Silverado compared to this?

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Old 09-14-2009, 08:36 AM   #4
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Default Re: Video: Driving the Saturn Aura HCCI Prototype at GM

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The MPG gains aren't any better then a Hybrid. If they were running a V6 in the Aura, wouldn't they get better fuel economy with a 2 cylinder shut down like on the Silverado compared to this?
This is also a helluva lot cheaper than a hybrid add-on. No big expensive battery. AFM is a secondary option for running above 60mph, when HCCI cuts out.

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