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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.

FCA recalling 63k Jeeps, Vipers and Ram ProMaster City vans

Fiat Chrysler Automobiles has announced a pair of recalls cover nearly 63,000 vehicles. The bigger of the two actions covers manual-transmission-equipped vehicles from 2006, including the Jeep Liberty and Wrangler, as well as the Dodge Viper. FCA engineers uncovered that the clutch ignition interlock switches use a kind of wire that was part of a previous recall campaign. Because of this, the company said that affected vehicles may not start, although in rare cases, "if recommended starting procedures are not followed," the affected vehicles may lurch forward after turning the key. Those recommended starting procedures "include activating the parking brake, placing the shift lever in neutral and pressing the clutch pedal before turning the vehicle's ignition key." Recall number two affects the company's 2015 Ram ProMaster City cargo and passenger vans. Owners will need to report to dealers to have a piece of tape removed from the side-curtain airbags. The tape is added during assembly and in some cases, may not have been removed. That could prevent the airbags from deploying in the event of a crash. Just under 59,000 vehicles are included in the first recall, including 43,874 in the United States, 11,309 outside of North America, 2,944 in Canada and 706 in Mexico. The ProMaster City recall includes just over 3,900 vehicles. FCA claims it's unaware of any injuries, fatalities or accidents related to either recall and will perform repairs free of charge. Scroll down for the official press release on both campaigns. Related Video: Statement: Clutch Ignition Interlock Switch April 23, 2015 , Auburn Hills, Mich. - FCA US LLC is launching a voluntary recall of an estimated 43,874 older-model U.S.-market cars and SUVs equipped with manual transmissions. The Company will replace their clutch ignition interlock switches at no charge to customers. The action follows an investigation by FCA US engineers that discovered these vehicles are equipped with switches that contain a certain type of wire implicated in a previous campaign. The wire, which was temporarily substituted by a supplier for the specified material, may break. As a result, the vehicles may not start, and in rare cases – if recommended starting procedures are not followed – a vehicle may exhibit unintended movement when its ignition key is turned. FCA US is unaware of aware of any related injuries or accidents involving this population of vehicles.

Next-gen Jeep Wrangler to pack 300-hp Hurricane turbo four

Fiat Chrysler has been working for some time now on a new turbocharged four-cylinder engine. Dubbed "Hurricane," the engine is now said to produce nearly 300 horsepower. And its first application could be in the next-generation Jeep Wrangler. With that much power coming from such a small engine, the Hurricane would offer an even higher level of specific output than the 1.75-liter engine in the Alfa Romeo 4C – one of FCA's highest-stressed engines – far eclipsing the 4C's 120 horsepower per liter with 150 hp/l. By way of comparison, the latest 2.0-liter, four-cylinder version of Ford's EcoBoost engine produces "only" 245 hp (122.5 hp/l). The 2.0-liter turbo four in the latest Mercedes-AMG CLA45 and GLA45, however, produces 375 hp. To get so much out of so little an engine, FCA will utilize a twin-scroll turbocharger and variable valve timing. That could make it ideally suited towards a compact performance model, but according to Automotive News, its first application could be in the new the Wrangler. The larger 3.6-liter Pentastar V6 produces 285 hp, nearly as much as the Hurricane will. But with a smaller engine, an eight-speed transmission, and aluminum construction, the new Jeep will likely benefit from dramatically-improved fuel consumption. Related Video: