Technical specifications – INFINITI 'MR20 DDT' 2.0-liter VC-Turbo.

Fuel type: Gasoline
Construction: Aluminum block with arc-sprayed mirror coating to cylinder bores, aluminum cylinder head with integrated exhaust manifold, single-scroll turbo with intercooler
Compression ratio: 8.0:1 ~ 14.0:1
Capacity: 2.0-liters, 1,997 ~ 1,970 cc (8.0:1 ~ 14.0:1)
Bore x Stroke: 84.0 x 94.1
Cylinders: 4
Valves: 16 (four per cylinder)

Valve control:
Intake: Electronic Variable Valve Timing Control
Exhaust: Hydraulic Variable Valve Timing Control

Turbo: Single-scroll turbocharger with electronic wastegate actuator
Turbo cooling: Intercooler
Fuel system: Gasoline direct injection (DIG) and/or multi-point injection (MPI)
Max power: 200 kW (268 hp / 272 ps)*
Max torque: 390 Nm (288 lb ft)*

INFINITI today unveils the all-new 2.0-liter VC-Turbo (Variable Compression Turbo) gasoline engine, the world's first production-ready variable compression ratio engine. Shown for the first time at the 2016 Mondial de l'Automobile in Paris, the four-cylinder VC-Turbo promises to be one of the most advanced internal combustion engines ever created.

With the ability to continuously transform, INFINITI's VC-Turbo technology uses an advanced multi-link system to seamlessly raise or lower the stroke of the pistons, detecting the car's driving condition and driver inputs, and instantly selecting the most suitable compression ratio.

The engine is able to offer any compression ratio between 8:1 (typical for high performance engines) and 14:1 (used by many manufacturers for high efficiency).

The result is an engine that combines the power of a high-performance 2.0-liter turbo gasoline engine with the torque and efficiency of an advanced diesel powertrain – without the equivalent emissions – offering a compelling alternative to similarly-powered four-cylinder diesel engines. The VC-Turbo engine will be comparable to certain six-cylinder gasoline powertrains for performance, while significantly outperforming them in efficiency.

The four-cylinder VC-Turbo engine achieves lower levels of noise and vibration than conventional internal combustion engines, particularly diesel, and is lighter and more compact than V6 units with comparable power outputs.

INFINITI's VC-Turbo technology marks a significant leap forward for the internal combustion engine, joining other renowned powertrain innovations such as liquid-cooling, fuel injection, catalytic convertors, and turbocharging. The arrival of the variable compression ratio engine will establish new benchmarks for power, efficiency and emissions.

Fixed compression ratio engines have been in existence throughout the 130-year history of the motor car. Throughout this time, other manufacturers have taken on the challenge of developing a variable compression ratio engine. INFINITI will be the first to bring the technology to market, with an engine that continuously transforms according to driver behavior.

A truly historic challenge, INFINITI has worked on this technology for more than 20 years. The first major breakthrough was the invention by INFINITI of a new multi-link technology in 1998, which held the key to a true variable compression ratio.

INFINITI has tested and developed more than 100 engine prototypes in perfecting the technology, covering over three million kilometers of equivalent road testing and spending over 30,000 hours on the test bed (equal to five million kilometers of on-road testing). The engine is now in its final stages of development on real roads.

The advanced new VC-Turbo engine is the latest driver-focused technology from INFINITI. The company has introduced a series of world-first technologies since 1989, such as 'steer-by-wire' Direct Adaptive Steering and predictive forward collision warning.

The compression ratio is the ratio of the combustion chamber's volume from its greatest capacity (when the piston is at bottom-dead-center within the cylinder) – to its smallest capacity (when the piston is at top-dead-center).

A higher compression ratio is able to achieve greater efficiency and improved fuel consumption; lower compression ratios offer greater power and torque, particularly in turbocharged engines, but are known for reduced fuel efficiency.

Until now, in every production engine ever built, this ratio has been fixed as a result of the dimensions, components and engine layout.

INFINITI's VC-Turbo engine uses an advanced multi-link system to change the compression ratio seamlessly, actively raising or lowering the height of the pistons' stroke. Offering any compression ratio between 8:1 and 14:1, the VC-Turbo engine offers both power and efficiency within the same engine.

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