Supporting Super Moderator
September 22, 2009
September 22, 2009
Could we see a DI V8 and/or a Hybrid Camaro soon?
In a recent press release from Tom Stephens (Group Vice President, GM Powertrain Europe) He speaks about Corvette's Future. "To boost fuel economy, GM plans to reduce the Corvette's weight, offer tires with less rolling resistance and offer an engine with direct injection, variable valve timing and cylinder deactivation. Electric power steering alone could add about 0.5 mpg." says Stephens. Revealing that Corvette has a DI V8 on the way with the new generation. What does this mean for Camaro? Could Camaro get the DI V8 from the Corvette? Along with that, Stephens also states that a hybrid Corvette is not out of the question if fuel standards require it. "We will only do a hybrid if that is what is required to maintain the vehicle, I think we have a pretty good plan right now that probably will not require a hybrid in the near term." Says Stephens. With Camaro production much higher than Corvette, could this indicate that a hybrid Camaro could not be far off?
With direct injection, fuel is sprayed directly into the engine cylinder, where it is mixed with air. As the fuel vaporizes in the cylinder, the air and fuel mixture is cooled. This enables the use of a higher compression ratio, which improves engine efficiency and performance.
See how Direct Injection works: Video
GM tested there experimental engine based on their current all-aluminum Gen IV 6.2L V-8 (L92) rated between 380-403 hp in stock form. When they added DI the prototype V-8 produced “well north of 450 hp (on gasoline),” says Dave Sczomak, development engineer-GM Powertrain Advanced Engineering. Sczomak also says adding E85 ethanol makes even more power because of its higher octane rating(106 octane). Besides the increase in HP, DI aslo added about 10% in low-end torque and 3-6% improvement in fuel economy to the 6.2L V8.
The US has pushed CAFE standards for fleetwide average of 35.5 miles per gallon by 2016, which is four years ahead of the schedule
The application of direct injection also reduces cold-start hydrocarbon emissions by 25 percent.
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