May 18, 2011

Audi 2.5-liter TFSI Wins International Engine of the Year Award

Audi TFSI engine

The Audi 2.5-liter TFSI has been named the “International Engine of the Year” for the second year in a row. The reigning champion of the 2.0 to 2.5 liter category can be found in the Audi RS 3 Sportback and Audi TT RS Coupe and Roadster. This turbocharged five-cylinder produces an impressive 340 hp and 332 lb-ft of torque. A creation by quattro GmbH, the engine powers the TT RS Coupe to 62 mph in 4.3 seconds, while the heavier RS 3 Sportback gets there in 4.6.

What makes the TFSI unique spans much further than its latest direct gasoline injection technology and gaudy spec sheet. The numbers speak volumes, but if you dig a little deeper you’ll truly see what separates this engine from the competition. Every manufacture is capable of creating a motor that produces a lot of power. However, it takes some special engineering to produce such numbers in a lightweight and compact package, which is exactly what Audi was able to accomplish.

The 2.5 liter TFSI is just 19.29 inches in length and a record setting 403.45 pounds. The crankcase is made out of vermicular-graphite cast iron, meaning it’s better suited to withstand mechanical stress, while also aiding in weight savings. That lightweight and durable theme continues down to the pistons, cylinder head, and connecting rod. Thus, the TFSI is certainly designed for sporting purposes and delivers in spades exactly what’s expected from a performance engine.

The turbocharger is standard equipment and generates a forceful 1.2 bar of boost pressure, while the intercooler effectively reduces air temperatures by over 80 percent. All while maintaining an impressive 25.57 mpg is the reason why the Audi 2.5 liter TFSI is a deserving winner of the International Engine of the Year Award for 2011.

[Source: Audi]

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  • [...] R8 is equipped with a 5.2-liter V10, while the A1 Clubsport Quattro utilizes a modified version of Audi’s five-cylinder TFSI. That’s equal performance from half the cylinders, and half of the displacement that the top R8 [...]

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