Monday, March 06, 2006

Vorsprung durch Technik!

The brand new Audi R10. Attempting to fill the shoes of the legendary Audi R8 will be difficult, at best, but Audi may have pulled it off with this car.

A completely new Diesel V12 TDI engine with a cubic capacity of 5.5 litres – the maximum permitted at Le Mans – and power exceeding 650 hp and torque of more than 1100 Newton metres. Aluminum Crank Case, 90 degree cylinder-bank angle. The injection pressure easily exceeds the 1600 bar achieved in production cars. The ignition pressures also reach values never previously seen in any Audi engine. The engine’s power and high torque are available to the driver practically from idling speed – a speciality of diesel technology to which the drivers must now become accustomed. The usable power band lies between the relatively low 3000 and 5000 revs per minute.

“We really have explored completely new territory with this engine,” says Ulrich Baretzky, Head of Engine Technology at Audi Sport.

“Compared with the R8, the engine’s length has grown through the number of cylinders, and because of a diesel’s typical power and strength,” says Wolfgang Appel, Head of Vehicle Technology at Audi Sport. “In this respect we had to react by making everything as light as possible on the chassis side.”

The R10 has a significantly longer wheelbase because of the larger capacity engine. The R8 still had a traditional chassis clothed in synthetic bodywork, whereas the majority of the carbon-fibre parts belonging to the R10 monocoque are now suspended directly in the air flow and therefore require no additional fairings. No longer hydraulic, they’re using electric steering now. The new steering and the larger, more comfortable cockpit will make it easier for the drivers during 12 or 24 hour endurance races.

“The R10 project is the biggest challenge ever to have been handed to Audi Sport,” says Head of Audi Motorsport Dr Wolfgang Ullrich. Vorsprung durch Technik indeed.

Audi R10 Page

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