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Less than 24 hours after Jeep’s online configurator leaked early details about the brand’s inline-six petrol engine, the twin-turbo Hurricane motorcycle makes its full and official debut. Designed to match the output of the larger V8 unit, the new 3.0-liter straight-six is up to 15 percent more efficient than the eight-cylinder engine and Jeep will sell it in two power stages, depending on the application.
Let’s get straight to the numbers. In standard form, the new 3.0 twin-turbo engine produces “over” 400 horsepower (294 kilowatts) and 450 pound-feet (610 Newton-meters) of torque. This version is optimized for best fuel economy and uses cooled exhaust gas circulation. The High Output variant, in turn, is good for “over” 500 hp (368 kW) and 575 lb-ft (780 Nm) with the promise of delivering “significant” fuel savings during heavy loads, such as towing.
The foundation for the new 3.0 L6 is an inner skirt cast aluminum block with a structural aluminum alloy oil pan. Jeep has installed two low-inertia, high-flow turbochargers, each supplying three cylinders. Fuel is provided by a high-pressure direct fuel injection system with one pimp for the standard version and two pumps for the more powerful, driven by a special chain drive shaft. Both versions come as standard equipped with a start-stop system that reduces emissions in urban use.
As a result of the hardware solution, Jeep says the new engine delivers a flat torque curve with the engine maintaining at least 90 percent of its peak torque from 2,350 rpm to its red line. The unit’s inline-six architecture makes it suitable for future electric support integrations, meaning the Hurricane hybrid engine can produce more power and have fewer harmful emissions.
Jeep said exact output figures will vary depending on the application with the first vehicles powered by Hurricane engines expected to reach dealerships later this year. The Grand Wagoneer will be one of the first to receive it and there are rumors of a next-generation Dodge Challenger and Charger also making it a more efficient and environmentally friendly alternative to the current V8.
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