Japan: Toyota unveils new 1.2-litre turbo-petrol engine

In today’s automotive world, efficiency is king. Forced induction has had a major role to play in the global need for more performance from smaller engines. A new entrant into the turbo petrol family is Toyota’s 8NR-FTS 1.2-litre direct-injection turbo-charged engine. Toyota says the engine delivers improved thermal and fuel 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 remains unaffected by the engine's thermal load. Engineers say this helps improve throttle response and deliver a larger chunk of the available torque across a wider rev band. Toyota claims, the improvements combine to produce a maximum thermal efficiency of 36%, as per the in-house measurements.

The engine produces 114 BHP @ 5,200-5,600 rpm and 185 Nm of torque from 1,500-4,000 rpm. The 8NR-FTS mill will be available as an option for the recently updated Auris, that was just launched in Japan. The Auris variant powered by this engine uses a CVT automatic gearbox that transmits power to the front wheels. The new Auris costs between 1,789,855 - 2,590,037 Yen (INR 9.26 Lakh - 13.40 Lakh approx.), with the most expensive variant being powered by the new engine.