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An Allpar reader caught this Dodge Challenger, fully instrumented and “sounding like a vacuum cleaner,” running along Michigan roads. It appears as though it might be a testbed for the upcoming 6.2 liter supercharged “HellCat” Hemi, which various sources are claiming to be powered at anywhere from 550 hp to 700 hp. Since the ZF eight-speed automatic to be used with the engine is good for just 660 lb-ft, that will probably be the limit for torque, unless, like the current 392 Hemi Challenger SRT8, the car also has an optional six-speed manual transmission. In that case, Chrysler could conceivably go beyond the automatic’s torque limit to provide an extra incentive to “go manual.” At this point, Allpar believes that the engine will end up rated around 580-600 horsepower, given the need for a 200,000 mile design life, durability and reliability concerns throughout the powertrain and chassis, the ability..
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