Cadillac has developed a new 2.0-litre turbocharged inline-four engine as part of an all-new global architecture of versatile, high-efficiency powertrains. The engine heralds the next generation of powertrain engineering and will debut later this year in the Middle East under the hood of the all-new Cadillac XT4.
The new motor is engineered with industry-leading valvetrain technology, delivering efficient performance as well as immense power on demand at all speeds. It features an advanced, power-dense inline-four layout with an industry-first tri-power system. The system optimizes the performance of the turbocharged four-pot motor by having three operating modes: High valve lift for maximum power, low valve lift for a balance between power and efficiency, and finally Active Fuel Management (cylinder deactivation) for improved fuel efficiency.
Christian Soemmer, Managing Director of Cadillac Middle East spoke about the engine, saying, “The modern, sporty character of the XT4 and its tech-savvy target customer from the millennials of the Middle East are perfectly suited for this advanced family of engines. Right from the beginning, the XT4 has been powered by an all-new engine that delivers exceptional responsiveness to inspire driver confidence with power, while providing competitive fuel economy for optimal efficiency.”
The petrol engine produces an SAE-certified 237hp (177kw) and as much as 350Nm. A twin-scroll turbocharger enhances torque output at lower engine speeds with the help of direct injection technology. Aboard the Cadillac XT4 compact SUV, the motor achieves peak torque from as low as 1,600RPM and maintains it up to 5,000RPM. This makes for a flat torque curve across a wide band that is sure to thrill drivers seeking a more spirited performance from the motor.
Power and grunt are not the engine’s only forte; aided by intelligent technologies the engine also scores top marks in the fuel efficiency department. The 2.0-litre motor claims three world-first innovations which are as follows:
- A three-step sliding camshaft that enables advanced Active Fuel Management (cylinder deactivation) for optimized fuel efficiency.
- An electric purge pump in the fuel system that helps the engine comply with emissions norms.
- An active thermal management design that makes smart use of waste energy to further enhance efficiency and reduce friction.
Additional technologies are added to the Cadillac 2.0-litre engine to improve the engine’s balance of performance and efficiency, such as an electric water pump to eliminate the drag of a conventional engine-driven pump. This design also enables uninterrupted cabin heating even when the engine is off during a stop-start event. The integrated exhaust manifold in the cylinder head helps recover exhaust heat for faster engine and transmission warm-up and quicker turbo response. Stop/start technology also serves to improve fuel efficiency and can be deactivated by the driver at startup.
The new Cadillac 2.0-litre Turbo engine on the XT4 will be mated to a nine-speed automatic transmission with next-generation Electronic Precision Shift. Finer details of the engine are listed in the table below.
CADILLAC 2.0L TURBO
|Engine type:||2.0L Turbocharged I4 DOHC with Active Fuel Management, direct injection and stop/start|
|Bore x stroke (in. / mm):||3.26 x 3.63 / 83 x 92.3|
|Block material:||Cast aluminium|
|Cylinder head material:||Cast aluminium|
|Valvetrain:||Tri-power system with dual-overhead camshafts and four valves per cylinder|
|Fuel delivery:||Direct injection with electronic throttle control|
|Horsepower (hp / kW @ rpm):||237 / 177 @ 5000 (SAE-certified)|
|Torque (lb.-ft. / Nm):||258 / 350 @ 1500-4000 (SAE-certified)|
|EPA estimated fuel economy:||9.4L/100 km city / 7.8 L/100km highway (FWD)
9.8 L/100 km city / 8.4 L/100 km highway (AWD)
Hydra-Matic 9 speed automatic