What is the horsepower and torque of the Hurricane 4 Turbo?
The engine produces 324 horsepower at 6,000 rpm and 332 lb.-ft. of torque from 3,000-4,500 rpm.
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Automotive / Engines
Stellantis’ New Hurricane 4 Turbo Engine Debuts in 2026 Jeep Grand Cherokee
Stellantis has unveiled its all-new 2.0-liter Hurricane 4 Turbo engine, set to make its debut in the 2026 Jeep Grand Cherokee. This innovative four-cylinder engine delivers horsepower and torque comparable to many six-cylinder engines, whil...
Key Insights
- The Hurricane 4 Turbo produces 324 horsepower and 332 lb.-ft. of torque.
- It features turbulent jet ignition (TJI) technology for fast, complete combustion, enhancing power and efficiency.
- The engine uses a variable-geometry turbocharger, providing 90% of peak torque from 2,600-5,600 rpm.
- It achieves 20% more power than Stellantis' current 2.0-liter DOHC I-4 while using 10% less fuel.
- The engine design is flexible for conventional, hybrid, and plug-in hybrid powertrains.
In-Depth Analysis
The Hurricane 4 Turbo engine incorporates several key technologies to achieve its impressive performance.
- **Turbulent Jet Ignition (TJI):** This system uses a pre-chamber and spark plug to ignite a small amount of fuel, which then jets into the main combustion chamber, creating a faster and more complete burn.
- **Miller Cycle:** The engine employs a Miller Cycle operating strategy, closing intake valves early to optimize efficiency and reduce emissions.
- **Dual Fuel Injection:** The engine uses both port fuel injection and direct fuel injection, deploying each system based on engine status and driver demand.
- **Variable Geometry Turbocharger:** This turbocharger uses active vanes to deliver up to 35 psi of boost, providing significant power and torque at low engine speeds.
The engine block is made from a die-cast deep skirt aluminum, enhancing structural stiffness and minimizing noise, vibration, and harshness (NVH). The cylinder bores feature an ultra-thin, low-friction Plasma Transfer Wire Arc (PTWA) coating for increased wear resistance.
FAQ
What is turbulent jet ignition (TJI) technology?
TJI uses a small pre-chamber and spark plug to ignite fuel, which then jets into the combustion chamber for a faster, more complete burn.
Where is the Hurricane 4 Turbo engine assembled?
The engine is assembled in Dundee, Michigan, with future production planned for Kokomo, Indiana.
Takeaways
- The Hurricane 4 Turbo engine offers a powerful and efficient alternative to larger engines.
- Key technologies like TJI and variable geometry turbocharging contribute to its performance and fuel economy.
- The engine's design is versatile, accommodating conventional, hybrid, and plug-in hybrid powertrains.
- The 2026 Jeep Grand Cherokee will be the first vehicle to feature this engine.
Discussion
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