In the face of newly passed CAFE regulations, it looks as though Chrysler will once again have to cease production of its legendary Hemi engine. Chrysler hopes to sway the definition of what performance and power means to those who didn't grow up with the Hemi engine by offering smaller, more fuel efficient powerplants with similar performance.
"The Hemi is not the powertrain of the future," Jim Press, Chrysler co-president, told Automotive News. "It's the powertrain of today."
One powertrain of the future could lie underneath the hood of the recently unveiled Dodge Zeo a 268 horsepower electric motor capable of propelling the concept from 0-60 in less than 6 seconds. Dodge says the lithium-ions battery pack that powers the car can go 250 miles between charges.
Although the Dodge Zeo offers Hemi-like performance without the fuel consumption or emissions, its technology still puts it several years out. However, Chrysler's new line of fuel efficient Phoenix V6 engines will arrive in about a year. The new Phoenix range of engines will feature double-overhead-cams, an aluminum block, variable valve timing and cylinder deactivation. The new V6s should offer greater performance while reducing emissions and fuel consumption.
But Chrysler hasn't completely given up on the Hemi yet. The latest iteration will bow in the all-new 2009 Dodge Ram, which will feature the same displacement 5.7L but will see a 10% increase in horsepower up to 380 while reducing overall fuel consumption by 4%. The improvement were achieved through variable valve timing and cylinder deactivation.
Chrysler didn't shed any more light on the Hemi's future, but with the new CAFE standards taking effect in 2011, the Hemi's revival could be short lived.