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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.

2016 Dodge Viper ACR priced from $117,895

Fancy getting your hands on the all-new Dodge Viper ACR? Prepare to shell out at least $117,895, not counting destination or gas-guzzler tax. Those two add $1,995 and $2,100, respectively, for an out-the-door price of $121,990. That's $32,900 more than a base 2015 Viper, or the equivalent of a Challenger with a few options. As we explained previously, the ACR model doesn't do much for outright power – the 8.4-liter V10 offers up only five more ponies than before – but it does add suspension and aerodynamic upgrades that make this particular Viper far more potent on the track. The order books are officially open for the ACR, so if you've got the coin, get in touch with your local dealer. Until then, head into Comments and let us know what you think of the ACR's pricing. Would you shell out $118,000 for the ultimate Viper? DODGE OPENS ORDER BANKS FOR NEW 2016 DODGE VIPER ACR The fastest street-legal Viper track car ever offers a tremendous value for performance May 12, 2015 , Auburn Hills, Mich. - Viper enthusiasts with the need for ultimate handling, performance and road course domination, as well as the ability to drive their Viper home from the track, can now place their orders for the fastest street-legal Viper track car ever. The Dodge brand has announced pricing and opened order banks for the recently introduced 2016 Dodge Viper ACR. Unveiled last week at the revamped Conner Avenue Assembly Plant in Detroit, the American Club Racer model of the iconic, hand-built American supercar will have a starting U.S. Manufacturer's Suggested Retail Price (MSRP) of $117,895 (excluding destination and gas guzzler tax). "Bringing our street-legal Dodge Viper ACR back is going to arm our track enthusiasts with the ultimate weapon to dominate road courses across the country," said Tim Kuniskis, President and CEO - Dodge and SRT Brands, FCA - North America. "This is without a doubt the best Viper ACR ever. The latest in aerodynamic, braking and tire technology will ensure its legendary performance reputation around the world." Originally introduced in 1999 and last available for the 2010 model year, the Viper ACR has a long-standing legacy as the ultimate street-legal track car for club racing. The new 2016 model honors that performance legacy with significant aerodynamic and suspension upgrades, new Carbon Ceramic brakes with six-piston calipers and high-performance tires specifically designed for ACR.

Dodge could resurrect the ACR nameplate on a track-hungry Challenger

Dodge will reportedly celebrate the Challenger's 50th birthday by introducing a track-focused variant of the coupe that will resurrect the American Club Racer (ACR) nameplate. It will arrive as a cocktail of the automaker's best race-bred parts, including bits and pieces sourced from the defunct Viper. The Challenger ACR will be presented as a follow-up to the sold-out Challenger Demon available during the 2018 model year. While Dodge developed the 840-horsepower Demon for drag racing, it's designing the ACR to tackle America's windiest road courses, according to anonymous sources who spoke to website Mopar Insiders. It will need to take a turn, not just go really fast in a straight line. To that end, Dodge will give its popular muscle car more downforce by adding a full body kit that will include a huge adjustable rear wing shaped like the one fitted to the Viper ACR. The racer will be based on the Widebody variant of the Challenger, which handles considerably better than its narrow-bodied sibling, and it will rely on composite materials like carbon fiber to keep weight in check. In other words, it will receive more extreme modifications than the Challenger SRT8 ACR that Dodge introduced during the 2011 SEMA show but never approved for production. If this configuration sounds familiar, it's likely because the carmaker sponsors an independent team named Wesley Motorsports, which races a Hellcat Redeye all over America. It features an adjustable suspension provided by Blistein, slick Toyo tires, and a supercharged, 797-horsepower V8. The Challenger ACR described by Mopar Insiders sounds a lot like the one Wesley Motorsports regularly enters in hill climbs and time attack competitions (pictured). Coincidence? It's too early to tell for sure. Dodge hasn't commented on the report, and it hasn't announced what it has in store for the Challenger's 50th anniversary. The original Challenger made its debut in late 1969, and it arrived in showrooms during the 1970 model year, so Dodge will need to unwrap its surprise before the start of the 2021 model year to keep it timely. Expect an announcement during the first half of 2020. While pricing information remains a mystery, Mopar Insiders added the Challenger ACR will come standard with only a driver's sat. Buyers will be able to add a passenger seat for $1.