Home Articles Revotron marks next generation engine family from Tata Motors

Revotron marks next generation engine family from Tata Motors

Revotron marks next generation engine family from Tata Motors

A new engine family will power Tata Motors’ new generation passenger vehicles into the future.


A separate Motor Show and Components Show at the 2014 Auto Expo attracted quality visitors. Held at two separate venues, 40 kms apart, the Components Show, at Pragati Maidan, reflected the journey of auto components manufacturers through challenging times. Their strategies and efforts to survive and keep growing. If some participants reasoned that their ability to innovate had kept them firmly on the path to growth, there were those who announced that they had a good time in 2013 since their clients performed well; had new, exciting models to offer, which assured growth.

Tata Motors announced the launch of a new, modern engine family called Revotron in January 2014. A next generation petrol engine family, Revotron will power a range of future passenger vehicles from Tata Motors. As of now, the Revotron engine family is spearheaded by a modern 1.2-litre turbocharged multi-point fuel injected petrol engine called the Revotron 1.2T. Designed and developed on the basis of the feedback received from car owners, enthusiasts and expert drivers, the turbocharged petrol engine was developed in close co-operation with AVL, an Austrian engine consultant known for its involvement in numerous Indian engine programs. Tata Motors also roped in world-class automotive tier suppliers like Bosch, Honeywell, Mahle and INA to develop the Revotron engine.


Engineered for optimal combustion, optimal turbo boost, minimal friction and the right calibration, the Revotron 1.2T petrol motor weighs less, is low on friction and high on performance as well as fuel efficiency according to sources close to the development. Producing 85PS @ 5000 rpm and 140 Nm @ 1750-3500 rpm, the 1.2T motor incorporates a low inertia flywheel. The low inertia flywheel enables it to provide a faster response for a flat and seamless segment-highest torque density. There is availability to good torque from low rpm. Torque is also available over a wide operating band. If this results in an exciting driving experience, the engine’s multi-drive modes, coupled with superior throttle response, advanced catalytic converter with reduced toxic emissions and Smart ECU (Electronic Control Unit), ensure a desirable mix of driveability and fuel efficiency.

Claimed to use innovative strategies at the ECU level, a stiffened crankcase ensures low NVH. The tuned intake and exhaust system aids in reducing the noise of combustion. A silent-steel oil pan helps to lower the auxiliary system noise. The ECU making for precise control, the Revotron 1.2T motor employs drive-by-wire technology. This translates into a smoother and responsive throttle response. Using low viscosity, fuel efficient engine oil, the Revotron engine comes with an optimised water-jacket and head gasket, which was developed with an extensive use of Computational Fluid Dynamics (CFD) technology. The outcome has been a water jacket and head gasket design, which ensures efficient combustion and reduces thermal inertia.

Featuring 8-hole fuel injectors, the Revotron petrol engine range will come to include a range of next generation 3- and 4-cylinder petrol engines. The Revotron 1.2T petrol engine is powering the Bolt and the Zest, which were showcased at the 2014 Auto Expo.

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