Last Friday saw a flurry of engine-related announcements that confirmed among others a new tie-up between McLaren and Renault, with the British team set to receive the French manufacturer’s next power unit specification from 2018.
The new Renault engine assembly has already been earmarked as a major step comprising three fundamental changes compared to the original concept introduced in 2014.
First, Renault has reportedly modified the layout of the ERS (energy recovery systems) parts, i.e. both motor-generator units (MGUs), the control electronics, the battery and associated coolers.
The second change focusses on cooling with radiator size significantly reduced (resulting in gains in terms of weight and drag).
Finally, the ERS can work under hotter conditions since heat sources have been homogenised.
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