Stellantis Debuts Twin Turbo I-6 Hurricane Engine

Stellantis unveiled its new 3.0-liter Hurricane twin-turbo inline six-cylinder engine that delivers better fuel economy and fewer emissions than larger engines while at the same time generates more horsepower and torque than many naturally aspirated V-8 and boosted six-cylinder powerplants. The 3.0-liter Hurricane twin-turbo I-6 HO, shown, generates more than 500 hp.
Stellantis unveiled its new 3.0-liter Hurricane twin-turbo inline six-cylinder engine that delivers better fuel economy and fewer emissions than larger engines while at the same time generates more horsepower and torque than many naturally aspirated V-8 and boosted six-cylinder powerplants. The 3.0-liter Hurricane twin-turbo I-6 HO, shown, generates more than 500 hp.

Stellantis will be putting straight sixes back on the map. Today, the company revealed its new, 3.0-liter, twin-turbo, inline, six-cylinder engine, named Hurricane, that 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 inherently smooth-running I-6 configuration and state-of-the-art technology, the Hurricane twin-turbo’s robust base architecture enables Stellantis propulsion systems engineers to create two distinct variants:

Standard Output (SO): Optimized for fuel economy, including the use of cooled exhaust gas circulation (EGR), while delivering enhanced power and torque (more than 400 hp/450 lb.-ft. of torque)
High Output (HO): Optimized for great performance (more than 500 hp/475 lb.-ft.) while maintaining significant fuel economy during heavy use, such as towing.
The Hurricane twin-turbo achieves this V-8-rivaling performance while being up to 15% more efficient than larger engines.

“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.”

Reducing greenhouse gas emissions is one part of Stellantis’ commitment to cut its carbon footprint by 50% by 2030 and to lead the transportation industry by achieving Net Carbon Zero by 2038. Those goals are key elements of the Stellantis Dare Forward 2030 strategic plan.

Specific horsepower and torque ratings will vary based on vehicle. The first vehicles powered by the Hurricane twin-turbo I-6 reach dealership showrooms this year.

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.

Stellantis propulsion system engineers employed a suite of state-of-the-art technologies for the Hurricane twin-turbo to deliver reduced emissions and attain big-engine power:

Two low-inertia, high-flow turbochargers for rapid response to throttle inputs

Plasma Transfer Wire Arc (PTWA) coating in the cylinder bores for an ultra-thin, low-friction wear surface

High-pressure (5,075 psi/350 bar) direct fuel injection with pumps (single for SO/dual for HO) actuated by a dedicated chain-driven shaft

Dual overhead camshafts with wide-range, fully independent variable valve timing

Fuel-saving engine stop-start (ESS) function with robust starter motor for quick restarts

Engine-mounted water-to-air charge cooler with a dedicated cooling

Continuously variable displacement oil pump with integrated scavenge stage

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