Stellantis Debuts Hurricane Twin-turbo I-6 Engine That Cuts Emissions, Increases Fuel Economy And Is More Powerful.
28-03-2022 09:40 - CAR NEWS
Stellantis 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.
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.
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.
The Hurricane twin-turbo flexes its muscle with a broad, flat torque band that sees the engine maintain at least 90% of peak torque from 2,350 rpm all the way to its red line.
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. During manufacturing the block is deck-plate honed to optimize the cylinder bore shape, which helps improve fuel efficiency.
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, each feeding three cylinders, 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 circuit (single inlet for SO/dual inlet for HO), dual water-cooled exhaust manifolds integrated in the cylinder head, continuously variable displacement oil pump with integrated scavenge stage tailors pump output to engine demand, reducing frictional losses and helping save fuel, high-flow ball-valve thermostat minimizes restriction in the cooling system, reducing mechanical losses.
The Hurricane twin-turbo flexes its muscle with a broad, flat torque band that sees the engine maintain at least 90% of peak torque from 2,350 rpm all the way to its red line.
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. During manufacturing the block is deck-plate honed to optimize the cylinder bore shape, which helps improve fuel efficiency.
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, each feeding three cylinders, 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 circuit (single inlet for SO/dual inlet for HO), dual water-cooled exhaust manifolds integrated in the cylinder head, continuously variable displacement oil pump with integrated scavenge stage tailors pump output to engine demand, reducing frictional losses and helping save fuel, high-flow ball-valve thermostat minimizes restriction in the cooling system, reducing mechanical losses.