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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.

Stellantis axed the SRT engineer team, but performance isn't going away

Stellantis has broken up the Street & Racing Technology (SRT) engineering team that created over a dozen high-performance vehicles, including the Dodge Charger Hellcat, but the situation isn't as dire as it sounds. The newly-formed company assigned SRT's former engineers to different positions, where they'll continue to make hot rods. "All of the core elements of the SRT performance engineering team have been integrated into our company's global engineering organization," a spokeswoman told enthusiast website Mopar Insiders. She added that integrating SRT's personnel into other brands in the Stellantis portfolio will ensure that the lessons learned from decades of peddling speed will permeate other products. Previously, SRT operated with a high degree of independence. Don't get too excited. Her statement does not necessarily mean that Citroen will begin building cars powered by the Hellcat engine, though a C3 Chat D'enfer sounds absolutely epic. Technology transfer will likely be limited to fields like aerodynamics and thermal management, and the design department might learn a couple of neat new tricks. Dodge will still move forward with the development of its next SRT-branded cars; the decision to dissolve the SRT team will not affect future models, according to the spokeswoman. Whether they'll be powered by a V8 is up in the air, because company boss Tim Kuniskis warned that regulations are killing the eight-cylinder engine. Similarly, Jeep will continue designing high-performance models, like the Grand Cherokee Trackhawk. What changes is that the model will be developed and designed by a group of engineers and designers from Jeep, not from SRT. SRT is dead, but performance isn't going away. SRT's demise nonetheless marks the end of an era for Chrysler. The division traces its roots to 1989, when some of the company's brightest minds were brought together to develop the first-generation Dodge Viper. It merged with Team Prowler to form the Specialty Vehicle Engineering (SVE) group, which was renamed Performance Vehicle Operations (PVO) in 2002 and finally dubbed SRT in 2004. SRT has operated as the carmaker's in-house tuner since, its resume includes a diverse selection of cars ranging from the Neon SRT-4 to the 1500 TRX, and it was promoted to a standalone brand led by designer Ralph Gilles in 2011. Fiat-Chrysler Automobiles (FCA) axed the SRT brand in 2014 but kept the name and the development team. Related video:

Dodge Hellcats change their stripes for 2016

If you've been on the fence about ordering up a new Dodge with Hellcat power, this might just provide the extra incentive you were looking for. Starting this month, Dodge is offering a new stripe option, exclusive to its most powerful muscle cars. The SRT Hellcat stripes are now available to order on the top-of-the-line, 707-horsepower versions of both the Charger and Challenger. The dual full-length stripes run all the way up from the front lip, over the grille, up the hood, accentuating the NACA duct, along the roof, down the trunklid, across the rear spoiler, and down the rear bumper. They feature a carbon-fiber texture, and can be ordered with any of eleven colors for an extra $995. Along with the stripes, Dodge has also announced that it is extending the availability of the exclusive Plum Crazy color – which was originally scheduled to expire at the end of December – for another month. The throwback hue can be ordered on Charger and Challenger models ranging from the SXT through the R/T models all the way up to the SRT 392 and Hellcat. 2016 CHALLENGER AND CHARGER SRT HELLCAT MODELS EARN EXCLUSIVE STRIPES, DODGE EXTENDS PLUM CRAZY PAINT - All-new SRT Hellcat dual exterior stripe design adds even more Dodge attitude to 2016 Challenger and Charger SRT Hellcat models - SRT Hellcat-exclusive dual full-length carbon-fiber pattern stripes provide a customized-from-the-factory look - Dealers will start taking orders for Hellcat stripes in January 2016 - SRT Hellcat dual stripes have a U.S. Manufacturer's Suggested Retail Price of $995 - Dodge is answering enthusiast demand for Plum Crazy exterior paint with an additional one-month run of the legendary and limited-edition high-impact hue January 8, 2016 , Auburn Hills, Mich. - For more than a year, Dodge Challenger and Charger SRT Hellcat models — the fastest and most powerful muscle cars ever with 707 supercharged HEMI® horsepower each — have stormed roadways and drag strips with acceleration blasts to 60 mph in the low 3-second range, generated more than 61 million sensational YouTube video views around the globe, enabled an entirely new generation of Dodge enthusiasts and now for 2016 have been rewarded with their very own Dodge performance stripes.