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Jaguar details the technology behind the I-Pace

Jaguar I-Pace

Ahead of it public debut at the Geneva International Motor Show next month, McLaren has released further information on the Senna. Fitted with a 4.0-liter twin-turbocharged V8 – McLaren’s most powerful IC engine ever produced for a road car – the limited release hypercar will develop 800ps and 800Nm.

Toyota details its new Dynamic Force engine

Megane R.S Video

The Japanese OEM has revealed its all-new powertrain system which is set to be installed in 80% of Toyota vehicles by 2023. Based on the Toyota New Global Architecture, the technology will feature a new continuously variable transmission (CVT), a 6-speed manual transmission and a 2.0-liter hybridized engine unit.

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As OEMs continue to announce plans to end production of diesel engines, Mercedes-Benz has unveiled its new diesel PHEV C-Class at the Geneva Motor Show. Will this powertrain development give TDI a new lease of life? 


Toyota reveals second turbo offering in new engine series

Toyota is ready to debut its second turbocharged entry in a series of new engines that boasts improved thermal and fuel efficiency.

The new 8NR-FTS 1.2-liter direct-injection turbo engine will be available as an option for the partially redesigned Auris, which recently went on sale in Japan. Like the other entries in Toyota’s new engine lineup, development of the 8NR-FTS is a culmination of Toyota’s experience in hybrid and conventional powertrain development, including advances in combustion and loss-reduction technologies. As a result, the OEM claims the new engine delivers superb driving performance and acceleration, while also achieving impressive fuel efficiency and thermal efficiency.

The engine pairs a single-scroll turbocharger with a cylinder head that uses an integrated water-cooled exhaust manifold to optimize exhaust temperature. This enables adaptive intake cooling that is not affected by the engine’s thermal load. The result is responsive acceleration and maximum torque across a wide rpm range.

Toyota has also improved combustion speed by creating a strong tumble flow inside the cylinder. This, together with D-4T (Direct-injection 4-stroke gasoline engine with turbo) technology, creates an ideal air-fuel mixture. In addition, continuous variable valve timing on the intake (VVT-iW) allows the engine to use the Atkinson cycle by adjusting valve timing according to load. These improvements combine to produce maximum thermal efficiency of 36%, according to in-house measurements, making the new engine a leader among mass-produced gasoline engines.

Despite the success of hybrids, Toyota is aware that vehicles with conventional powertrains still represent the majority of vehicles sold. By constantly increasing environmental performance across its entire vehicle lineup, Toyota aims to offer a portfolio of environment-friendly vehicles that meet the diverse needs of consumers.

April 8, 2015

8 April 2015


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