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Dodge Challenger spied exercising supercharged Hellcat Hemi V8

One of the prime complaints against the Dodge Challenger is that, even in SRT8 guise, its 470 horsepower is responsible for hauling over 4,200 pounds of vehicle. For comparison, the 420 hp in the Ford Mustang GT only has to deal with 3,618 lbs. Things only get worse from there, as the higher-performance variants of both the Mustang and the Chevrolet Camaro are far more powerful than an SRT8 without adding on much heft.
So what is Chrysler to do? The correct answer is add a whole lot more grunt to its hefty two-door and even the odds. That's where the all-new Hellcat engine comes into play. We reported on this engine in May, and suggested that the Hellcat, a supercharged powerplant based on a 6.4-liter V8, would easily generate 500 to 570 hp and could likely arrive boasting more than 600 ponies.
Chrysler's ace in its sleeve has now been spied testing, with a number of Hellcat-equipped Challengers running the potent new engine both in more urbanized areas and under the sun of Death Valley. The hoods on these testers have been raised to accommodate the engine, and that camouflage over the fascias of these prototypes is there to hide a larger air intake. We also note what appears to be a new split grille under wraps. As for power output, our spies are now suggesting a Viper-equalling 640 hp from the Hellcat-equipped cars.

Chrysler almost smothered the Hellcat before it lived

Chrysler's 6.2-liter supercharged Hellcat V8 was an absolute sensation from the very moment it was announced, and honestly, how could it not have been? Packing 707 horsepower and 650 pound-feet of torque, its numbers immediately put every other production muscle car (and many supercars) to shame. Plus, we soon learned that would be wrapped in a package retailing for around $60,000 - a pittance compared to other vehicles offering similar grunt. However, the Hellcat almost never got the chance to rumble under the hood of the Challenger and Charger.
The Hellcat was initially proposed back in 2011, back when Fiat was deciding its future strategy for Chrysler Group, according to Automotive News. At the time, the company was just emerging from its bankruptcy doldrums, and an ultra-high-performance V8 wasn't exactly a must-have item. The program didn't move forward. However, SRT engineers kept fighting, according to AN, and four months later, they received the green light to pull the project off the shelf and continue developing the Hellcat. The muscle car world is certainly better for that decision.
The work of those engineers focused on taking Chrysler's standard 6.2-liter V8 and making it reliably handle all of the extra power from the supercharger. "It came down to micron levels of changes in the crank to be able to withstand the pressures of the engine," said Chris Cowland, director of advanced and SRT powertrain, to Automotive News. The changes amounted to switching out about 91 percent of the parts to make the Hellcat, including some quite minuscule alterations. For example, the washer holding the supercharger pulley is embedded with industrial diamonds to keep it from slipping.

Dodge Challenger R/T Shaker and Mopar '14 Challenger up the retro appeal

The reborn Dodge Challenger might be getting a bit long in the tooth, having been on the market in its current form since 2008, but Chrysler isn't going to give up on its brutish, full-size two-door just yet. For this year's SEMA Show, the Challenger will be getting a new Mopar edition, as well as a retro-cool shaker hood on the 5.7-liter, Hemi-equipped R/T models.
As we mentioned last night, the Shaker Package will cost $2,500, but includes the Super Track Pak (new steering rack, brake linings, upgraded shocks and 20-inch Goodyear Eagle F1 Super Car tires), a $595 option on its own. The shaker hood result in a performance bump of any kind, but the blacked-out, pop-up scoop is a nifty feature that hasn't been seen on a production car since the Ford Mustang Mach 1 in the early 2000s.
The Mopar '14 Challenger (pictured right) follows the cues of previous Mopar Editions, which have included the 2010 Challenger, 2011 Charger, 2012 300 and 2013 Dart. Only 100 Mopar '14 Challengers will be produced, and they'll include the new shaker hood, Mopar's distinctive blue graphics and wheels, and whatever is pilfered from the accessory catalog.