Formula 1 powertrains for Le Mans in 2014

Racecar Engineering reports they have been shown documents laying out the framework for the 2014 LMP1 regulations. The biggest area of change is to the power trains of the cars, the engine maximum capacity will be increased to five liters from the current 3.7 liter maximum. Variable geometry turbochargers such as the one used by Audi on the R18 will be banned. The maximum boost pressure will be 4 bar, and the engines will not have air restrictors instead the cars will be limited on the energy they use per lap using a fuel flow meter such as the unit produced by Gill Sensors. Specifically it has been made clear that the new generation of Formula 1 V6 engines could be installed, which could give a Ferrari, Mercedes, PURE, Cosworth and Renault a short cut to Le Mans, as they would not have to develop a bespoke engine.

With Formula 1 testing tightly restricted it could allow the engine manufacturers to use the 2014 LMP1 cars a test beds for their powertrains.

Ratification of these regulations is expected in the coming days with an official announcement shortly before the start of the 24 Hours.

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