The TFSI engine fitted in the TTS summons its power from a displacement of 1984 cc, and blends two separate Audi technologies – gasoline direct injection and turbocharging – to form a partnership that is perfect for a sports car. It is with good reason that an international jury of motoring journalists has crowned the two-liter four-cylinder power unit "Engine of the Year" three times in succession since 2005.
It is not only the 200 kW or 272 hp (265 hp in the U.S.) of output that makes the TFSI so scintillating, there's its hefty pulling power too – the maximum torque of 350 Nm (258.15 lb-ft) is constantly on tap from 2,500 up to 5,000 rpm. The Coupe with manual transmission (not available in the U.S.) takes just 5.4 seconds to race from zero to 100 km/h (62.14 mph), while a mere 4.4 seconds are required to speed up from 80 to 120 km/h (49.71 to 74.56 mph) in fourth gear. The Roadster is almost as impressive, recording times of 5.6 and 4.6 seconds respectively for the same two exercises. The electronic limiter calls a halt to this outstanding propulsion at a speed of 250 km/h (155.34 mph) in both models.
Compared to the engine it was derived from, the two-liter power unit has undergone extensive reengineering and strengthening to ready it for operation in the TTS – overhauled areas include the engine block, the cylinder head, the pistons, the connecting rods and the turbocharger, which can build up as much as 1.2 bar of relative air pressure.
The intake and exhaust systems have undergone elaborate honing to allow the refined four-cylinder engine to both breathe freely and generate a powerful, resonant soundtrack. An optimized and highly efficient intercooler lowers the temperature of the compressed air, producing a crucial increase in the quantity of air supplied for combustion.
Thanks to its outstanding efficiency, the TFSI has impressive fuel consumption of 7.9 liters per 100 km (29.747 mpg – European specification) in the Coupe when partnered by the S tronic transmission, and just 8.0 l/100 km (29.375 mpg – European specification) in the Roadster.
The two-liter engine is extremely light, weighing in at 153 kilograms (337.31 lbs). This has considerable benefits for the overall weight of the TTS as well as for the axle load distribution and, consequently, for the vehicle's handling.
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Audi's
eighth Le Mans triumph in just ten races! This
puts
Audi in third place – just one
victory short of Ferrari
– on the perpetual list of
winners of the endurance classic
which has been staged since 1923
.
Audi
accidents prevent outright win in Salt Lake City
-Both Audi R10 TDI cars involved
in collisions just before the end
-Lucas Luhr/Marco Werner
win LM P1 class -Frank Biela/Emanuele
Pirro third in class despite premature
exit within the race.
1-2
fininsh at Long Beach for Audi -First
victory of the Audi
R10 TDI at Long Beach
-Second consecutive
victory of Audi TDI power on street
circuit
-Lucas Luhr/Marco Werner
extend championship lead
Villeneuve
handed Le Mans chance
The Canadian,
35, will drive the new diesel car the French company hopes will end
Audi's domination of the race.
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