Infiniti's VC-Turbo engine is the world's first production-ready variable compression ratio engine - and it makes its production debut on the new 2019 Infiniti QX50. This unique variable compression technology represents a breakthrough in combustion engine design - the all-new QX50's 2.0-liter VC-Turbo continually transforms, adjusting its compression ratio to optimize power and fuel efficiency. It combines the power of a 2.0-liter turbocharged gasoline engine with the torque and efficiency of an advanced four-cylinder diesel engine. The VC-Turbo changes its compression ratio seamlessly with an advanced multi-link system, continuously raising or lowering the pistons' reach to transform compression ratio - offering both power and efficiency, on demand. A high compression ratio gives greater efficiency, but in certain applications poses the risk of premature combustion (knocking). A low compression ratio allows for greater power and torque, and avoids knocking. In operation, the 2019 QX50's VC-Turbo engine offers any compression ratio between 8:1 (for high performance) and 14:1 (for high efficiency). Deploying smart power for greater control, the empowering engine exemplifies Infiniti's driver-centric approach. The blend of performance and efficiency represents a compelling alternative to diesel, challenging the notion that only hybrid and diesel powertrains are capable of delivering high torque and efficiency. The engine delivers 268 hp @ 5,600 rpm and 280 lb ft @ 4,400 rpm. The VC-Turbo's specific power output is higher than many competing turbocharged gasoline engines, and comes close to the performance of some V6 gasoline engines. The unit's single-scroll turbo ensures immediate accelerator responses, on demand.

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