And the Audi S3 press release:
quote:
TFSI in its most powerful form
The power plant of the S3 delivers all that is expected of a powerful sports engine, and does it supremely well. The 2.0 TFSI, which combines direct injection and turbocharger technology, delivers 265PS at 6,000 rpm. And at just 2,500 rpm it already musters up an impressive 350 Nm of torque – this pulling power remains constant up to 5,000 rpm. In the combined driving cycle the 2.0 TFSI displays another welcome character trait, its FSI direct petrol injection technology contributing to an impressive combined economy figure of 31.0mpg.
Compared with the A3, this engine is an advanced version which has undergone fundamental changes. The new turbocharger with its enlarged turbine and compressor rotor generates 1.2 bar of boost pressure – an unusually high figure. A modified intercooler significantly lowers the temperature of the compressed air, thus increasing the air mass necessary for combustion.
Pistons with stronger pins and strengthened connecting rods with new bearings transmit the powerful forces to the crankshaft. The cylinder block has been stiffened up and the head is made of a new, highly heat-resistant alloy.
The exhaust camshaft timing has been adjusted to accommodate the increased power output. High-pressure injectors with an enlarged cross-section squirt the fuel straight into the combustion chamber.
Despite all this progressive engineering, the high-performance turbo weighs in at just 152 kilos, which is less than comparable power plants from direct competitors, and this has a positive effect on the axle load distribution. The compact dimensions of the 2.0 TFSI make it suitable for transverse installation, which brings benefits in terms of the S3’s interior space and luggage capacity.