The new Energy dCi 160 Twin Turbo is a showpiece of downsizing and twin turbocharging. This 1,598cc Diesel engine delivers the driving enjoyment of a two-litre powerplant, but with fuel consumption reduced by 25%. The fuel efficiency of the Energy dCi 160 Twin Turbo makes it ideal for larger vehicles. It will notably be available for the brand’s upcoming top of the range models.

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The new energy dci 160 twin turbo engine : the feel of a 2-litre powerplant, plus a 25% saving in fuel consumption

As a successful engine maker in the world of F1, Renault makes full use of its experience by continuously refining the energy efficiency of its road car engines to deliver even greater driving enjoyment. The latest fruit of the firm’s downsizing strategy is the Energy dCi 160 Twin Turbo, the first 1.6-litre diesel powerplant to benefit from twin-turbocharging.

This 1,598cc block delivers 160hp and a generous 380Nm of torque, which catapults it into the domain of 2-litre engines in terms of performance. This important breakthrough combines with fuel consumption and CO2 emissions savings of 25%.

Improved performance courtesy of twin-turbocharging expertise

The use of ‘Twin Turbo’ technology for this diesel engine ensures a blend of low-end torque andhigh power at higher revs, the obvious knock-on effect of which is enhanced driving enjoyment.

The system comprises two sequential turbo-compressors:

  • The first is a very low inertia turbo which provides high low-end torque for crisp pull-away and mid-range acceleration. To guarantee sprightly pick-up response at low revs and incisive acceleration, 90% of peak torque is available from 1,500rpm.
  • The second turbo assumes the reins at the higher-end and produces high power (100hp per litre) at faster engine speeds to ensure smooth, linear, dependable acceleration right the way up to maximum revs.

The engine always works within its range of optimum efficiency, which naturally yields benefits in terms of fuel consumption and CO2 emissions.

A hi-tech unit boasting technology borne out of Renault’s F1 expertise

This expertise in the field of sophisticated turbochargers is not the only link between the 1.6-litre Renault Energy F1 Power Unit and the Energy dCi 160 Twin Turbo block which takes advantage of a number of technologies borne out of Renault’s know how in F1, notably in terms of cooling and friction reduction:

  • The transverse water flow system permits faster and more efficient cooling of thecombustion chamber.
  • "U"-section U-Flex piston rings adapt to changes in the form of the cylinder walls resulting from fluctuations in temperature and pressure to yield the optimum compromise between efficiency and friction.
  • Super-finishing also reduces friction.

The fuel injection system of the Energy dCi 160 Twin Turbo operates at a pressure of 1,800 bars to function with the twin turbocharger. It complies with Euro 6b emissions legislation and incorporates a NOx Trap and particulate filter regeneration system.

By dint of its efficiency, this engine is comfortably capable of powering larger vehicles, and will notably be available for Renault’s forthcoming top of the range models.

The Energy dCi 160 Twin Turbo will be manufactured at Renault’s Cléon plant in Normandy, France, which specialises in the production of the company’s technologically-advanced engines.

Performance, efficiency and reliability : motorsport at the service of production vehicles

The success of Renault engines, whether designed for motorsport or mass-produced road cars, is founded on three cornerstones:

  • Performance: Renault’s motorsport engines provide first class performance, while the units designed for the brand’s road vehicles benefit from specific power levels that rank amongst the most competitive of any volume manufacturer.
  • Efficiency: Squeezing the very most out of every last drop of fuel is essential in motorsport. At the same time, Renault’s production engines stand out for their efficiency and figure amongst the market’s very best in terms of their power output-to-fuel consumption ratio. As an example, New Clio Energy dCi 90 returns fuel consumption of just 3.2 litres/100km. That’s equivalent to 83g of CO2/km, a figure which rivals with that of the best-performing hybrids.
  • Reliability: Consistency in its results has played a fundamental part in the success achieved by Renault in motorsport over the decades, and that has been made possible by the durability of the brand’s engines in extreme conditions. Renault’s production powerplants, too, benefit from excellent reliability, as recognised in surveys conducted by independent motoring organisations and the company’s partners.