保时捷近日在维也纳引擎研讨会上发布了新的V8双涡轮引擎。它将应用于下一代卡宴和Panamera上。该引擎大致基于奥迪S4的那台3.0升V6涡轮增压引擎。虽然保时捷没有透露引擎排量，但据报道它采用了所谓的“半引擎模式”的停缸技术。该模式在引擎转速在950到3500转/分之间的低负载工况下激活，最多可使油耗降低30%。考虑到这该引擎将被搭载于多款车型上，保时捷对其进行了多项相关优化：包括匹配自动启停和混合动力系统等技术的相关优化；适配于奥迪MLB前驱平台或保时捷MSB后驱平台的优化。另外，该引擎可搭配八速自动变速器或八速双离合器变速器。在Panamera Turbo上，该引擎最大功率为404千瓦/549马力，扭矩770牛米。虽然比原来的4.8升V8双涡轮引擎功率更强劲，但其二氧化碳排放量显著降低。

 

Porsche unveils new biturbo V8 engine

Porsche has quietly unveiled a new biturbo V8 engine at the Vienna Motor Symposium.

 

Set to be used in the next-generation Cayenne and Panamera, the engine is loosely based on the turbocharged 3.0-liter V6 that powers the Audi S4. The company declined to mention the engine's displacement but reportedly confirmed it will have a cylinder deactivation system with a so-called “half-engine mode.” The mode is activated at "low loads between 950 and 3500" revolutions per minute and helps to reduce fuel consumption by up to 30 percent.

 

The engine has also been designed with multiple applications in mind so engineers optimized it for start/stop systems and hybrid applications. Engineers also worked hard to ensure the engine can be used in an assortment of different vehicles including front-wheel-drive models based on Audi's MLB platform as well as rear-wheel-drive models based on Porsche's MSB platform. Depending on its application, the engine will be connected to either an eight-speed automatic transmission or an eight-speed dual-clutch gearbox.

In the Panamera Turbo, the engine will produce 541 horsepower (549 PS / 404 kW) and 567 pound-feet (770 Nm) of torque. Despite being more powerful than the outgoing biturbo 4.8-liter V8, the new engine will have "significantly reduced" CO2 emissions.