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500+ hp Stellantis 'Hurricane' I6 previews a world without Hemis

After years of rumored development, Stellantis has revealed its new six-cylinder engine family. The 3.0-liter, twin-turbocharged "Hurricane" I6 will offer V8 power, forced induction torque and six-cylinder efficiency in a package designed to fit into any of the company's North American rear-wheel-drive platforms.  What is "V8 power," exactly? Well, in standard output guise, the new I6 cranks out more than 400 horsepower (the specific figure will vary by application) and 450 pound-feet of torque, while the high-output variant is good for more than 500 horses and 475 lb-ft. The final figures will be dependent on the application. We'll save you a little legwork: In current Ram, Jeep and Dodge products, the 5.7-liter Hemi tops out at about 395 hp and 410 lb-ft, give or take, and the 6.4-liter around 485 hp and 475 lb-ft.    This is a clean-sheet design that is only related to the company's turbocharged four-cylinder by some common measurements. The I6 is exclusively direct-injection (no hybrid/port-injection here) and the two I6 variants share 96 common parts, including the block and oil pan design. The differences are found in their internals, intake plumbing, valvetrain components and the turbochargers themselves. Stellantis is not yet ready to share specs or supplier info for the turbos but says announcements will come from its partners soon.  The standard-output I6 has a compression ratio of 10.4:1 and revs to 5,800 rpm. It will run on regular fuel, albeit with reduced performance; 91 octane is recommended for maximum output. The high-output variant has a compression ratio of 9.4:1 and will rev to 6,100 rpm. That one will require premium. The new I6's advantages go beyond basic power output. Every Hemi family engine currently in production is based on an iron block design, so they're heavy. The aluminum-block I6 shaves weight off the total engine package, even if some of that gets added back thanks to the turbos and their associated plumbing. The standard-output I6 weighs 430 pounds, Stellantis engineers told us; the high-output adds just another 11. Fully dressed 5.7-liter V8s are in the 550-560-pound ballpark, and 6.4-liters close in on 600 pounds.  You may be wondering, "Why a clean-sheet gasoline engine now, when the industry is moving toward battery-electrics?" A valid inquiry, and one Stellantis was prepared to address. While the company will be pivoting to electrification over the next decade, it won't be instantaneous.

Playing in the snow | 2017 Dodge Challenger GT First Drive

The previous day was miserable. An icy rain fell over Portland, Maine, coating the pavement and making even walking a chore. Driving a muscle car like the Dodge Challenger seems ill-advised. But this is exactly the weather Dodge hoped for, because we're here to test the new all-wheel-drive 2017 Challenger GT. The morning of our test drive dawns sunny and cold. The remnants of a late January nor'easter now past, we nonetheless steel ourselves for a day of unruly roads. Stepping into an inch of slush, we open the huge door, climb inside, and nestle into the heavily bolstered driver's seat. Immediately comfortable, we know the Challenger well. It's an old friend. Late in life, it's finally finding stability. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Heading onto the Maine turnpike, we're struck by the Challenger's poise. All-wheel drive civilizes the coupe's brutish nature. We confidently navigate the first on-ramp – still wet from the storm – and merge onto the highway. A rear-wheel-drive car would come unsettled here, yet this Challenger's 19-inch wheels wrapped in all-season Michelin rubber are not disturbed. At the very least, the specter of tire spin would have made us overcautious. All-wheel drive doesn't morph the Challenger into a Subaru Outback, but it does make the Mopar a realistic year-round option for buyers north of the Mason-Dixon line. Dodge arrived at this conclusion after some introspection. The Challenger and its sibling the Charger sedan are usually cross-shopped with each other, and design is often the deciding factor. With Charger AWD sales remaining strong (in 17 Northern states at least 50 percent of Chargers are sold with the system), not offering an all-wheel Challenger leaves money on the table. Ben Lyon, Challenger brand manager, says the common refrain was, "I would have bought a Challenger, or I would have bought a two-door muscle coupe, if it was available with all-wheel drive." View 50 Photos Naturally, the Dodges share an AWD system, which has an active transfer case and the ability to disengage the front axle, making the Challenger a rear-wheel-drive car in certain conditions to help save fuel. Ambient temperature, wheel slip, Sport mode, passing situations, and the driver's behavior can trigger the all-wheel capability.

Hennessey Dodge Demon sets hellishly fast quarter-mile time

The Dodge Demon doesn't strike us as a muscle car much in need of a performance makeover. After all, this 840-horsepower MoPar machine's voracious quest for straight-line speed means it trims weight by jettisoning everything from a front passenger seat and rear seat, to its stereo and all carpeting in the trunk. The folks at Hennessey apparently think that's not nearly extreme enough. So, the Texas-based tuning outfit has turned the Demon into a 1,035-horsepower mega beast that runs a quarter-mile in 9.14 seconds at 152 mph. That's fast, really fast. In fact, the HPE1000 is now the world's fastest Dodge Demon, having set its record-setting pace at Lonestar Motorsports Park on May 8. "The 2018 Demon is a street-legal rocket from Dodge, but we wanted to take the car's impressive track times to an industry leading level." said president and company founder, John Hennessey. For comparison, the stock Dodge Demon is credited with running the quarter-mile in 9.65 seconds at 140 mph. The main HPE1000 modification involves replacing the stock 2.7-liter supercharger with one that's a staggering 4.5-liters in capacity. Also included in the Hennessey toy-chest are stainless steel long tube headers, a high-flow air induction system, upgraded throttle body, upgraded fuel pump and fuel injectors, along with custom engine management calibration. When all is said and done, the HPE1000 Dodge Demon delivers a total of 1,035 horsepower at 6,500 rpm and 948 pound-feet of torque at 4,200 rpm. While the standard Demon accelerates from 0-60 mph in only 2.3 seconds, the Hennessey variant trims this down to only 1.9 seconds. That's quick enough to make a Bugatti Chiron blush. Hennessey hasn't stated what all this will cost, though the company did say production of these devilishly fast Demons will be limited to only 50 examples. Customers also receive a 1-year/12,000-mile warranty, which seems a nice touch for a car that's downright scary with its performance specs. Related Video: Featured Gallery Dodge Demon Hennessey HPE1000 View 30 Photos Aftermarket Dodge Coupe Performance supercharger Hennessey dodge demon quarter mile demon