Audi Banks On Efficiency At Le Mans

Audi will fight for victory in the Le Mans 24 Hours on June 12/13 with an evolution of the R15 TDI diesel race sports car.

An extensive testing program with the revised LMP1 vehicle has just begun in the United States.

"From Audi’s perspective, the LMP1 is the better alternative to Formula 1 because this motorsport category features technologies and developments which are relevant to production vehicles," said Head of Audi Motorsport Dr Wolfgang Ullrich.

"At Le Mans, efficiency is of paramount importance – and today, more than ever before, it is a key deliverable of production vehicles as well and it is one of Audi’s special strengths."

Therefore, efficiency was a focal point during the R15 TDI evolution project – particularly in the complex area of aerodynamics.

"This year, the Le Mans regulations prescribe air restrictors with a smaller diameter and reduced supercharging pressure for diesel-powered vehicles," said Dr Martin Mühlmeier, Head of Technology at Audi Sport.

"Due to the reduction of engine power as a result of the regulations we have tried to make the car’s aerodynamics even more efficient than before and to improve the Cd value and downforce parameters."

A late change in regulations that was announced only in November made the work of the engineers more difficult and forced Audi to completely modify the front section of the R15 TDI. Consequently, the diesel race sports car that is internally designated as "R15 plus" now has a new, distinctive face featuring a split nose.

The entire shape of the R15 TDI’s body has been revised for maximum efficiency. The same is true for the modified cooling and fuel tank system. The V10 TDI engine has been optimized for the smaller air restrictors and reduced supercharging pressure.

(PR)