It will change the distance the pistons travel in their cylinders by as much as 6 mm, or about a quarter of an inch.
Nissan’s chief powertrain engineer, says Infiniti’s VC-T engine is expected to deliver a combined city-highway EPA-rated fuel economy gain of 27 percent over the QX50s’s outgoing 3.7-liter V-6. The VC-T engine is rated at 268 hp and 288 pound-feet of torque. Kiga says the 2019 QX50 will reach 60 mph almost one second faster than its four-cylinder competitors.
The VC-T adds cost but is less expensive than a diesel engine. The VC-T engine is about 10 percent more expensive to produce than a regular 2.0-liter turbo four-cylinder engine.
The old engine had a combined city and highway mileage of 20 mpg. The new combined fuel economy should be around 26 mpg.
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