The Hurricane twin-turbo I-6 is the primary internal combustion power plant of the future in North America for vehicles using the STLA Large and STLA Frame platforms, including Wrangler, Cherokee, and Grand Cherokee models.  -  Source: Stellantis

The Hurricane twin-turbo I-6 is the primary internal combustion power plant of the future in North America for vehicles using the STLA Large and STLA Frame platforms, including Wrangler, Cherokee, and Grand Cherokee models.

Source: Stellantis

Automaker Stellantis introduced its 3.0L, twin-turbo, inline, six-cylinder engine, named Hurricane. According to a statement, the Hurricane delivers better fuel economy and fewer emissions than larger engines while at the same time generates more horsepower and torque than many competitors’ naturally aspirated V-8 and boosted six-cylinder power plants. Designed with an I-6 configuration, the Hurricane twin-turbo’s base architecture enables Stellantis propulsion systems engineers to create two variants:

  • Standard Output (SO): Optimized for fuel economy, including the use of cooled exhaust gas circulation (EGR), while delivering enhanced power and torque (about 400 hp/450 lb.-ft. of torque)
  • High Output (HO): Optimized for performance (about 500 hp/475 lb.-ft.) while maintaining fuel economy during heavy use, such as towing

“As Stellantis aims to become the U.S. leader in electrification, with a 50% battery-electric vehicle (BEV) sales mix by 2030, internal combustion engines will play a key role in our portfolio for years to come and we owe it to our customers and the environment to provide the cleanest, most efficient propulsion possible,” said Micky Bly, Stellantis head of propulsion systems. “The Hurricane twin-turbo is a no-compromise engine that delivers better fuel economy and an important reduction in greenhouse gases without asking our customers to give up performance.”

The foundation of the Hurricane twin-turbo is a deep-skirt cast-aluminum block with a structural aluminum alloy oil pan. Cross-bolted steel main bearing caps contain the strong rotating assembly of a forged steel crankshaft and forged steel connecting rods. During manufacturing the block is deck-plate honed to optimize the cylinder bore shape, which helps improve fuel efficiency. 

The 3.0L Hurricane twin-turbo I-6 shares design features, including bore and stroke and cylinder spacing, with the globally produced turbocharged 2.0L I-4. In North America, the 2.0L engine is currently available in the Jeep Wrangler, Wrangler 4xe, Cherokee and recently launched Grand Cherokee 4xe. The 3.0L Hurricane twin-turbo I-6 is produced at Stellantis’ Saltillo Engine Plant in Mexico.

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