Momentum is also available at the dynamic pinnacle of the A3 family: The S3 is joined by the Audi S3 Sportback. It has the same immensely powerful engine under its hood: The 2.0 TFSI has an output of 195 kW (265 hp); its maximum torque of 350 Nm (258.15 lb-ft) is constantly available from 2,500 to 5,000 rpm. The turbocharged direct injection engine catapults the Audi S3 Sportback into the exclusive class of compact, fast sports cars.
In comparison with the A3, the two-liter engine in the S3 has been intensively further developed. The turbo, with its upsized turbine and compressor turbine wheel, builds up a relative charge pressure of up to 1.2 bar. A reengineered charge air cooler significantly lowers the temperature of the compressed air and thereby increases the air mass required for combustion.
Pistons with reinforced pins operate within this, the most powerful TFSI engine; reinforced, newly mounted connecting rods transmit the forces onto the crankshaft. The cylinder block has been stiffened, with its head being cast from a new, high-temperature alloy. The exhaust camshaft timing has been adapted to the increased output, whilst the high-pressure injectors have been provided with increased cross-sections. With all of its concentrated technology, the highperformance, turbocharged engine weighs just 152 kg (335.10 lb), less than comparable engines from direct competitors.