Audi TT Technologies
Audi TT SN Roadster
Two most underpowered motors were replaced by more capacious ones in September 2005. The horsepower increased to reach 163 hp (110 kilowatt) and 190 hp (140 kilowatt). The torque reached 255 Nm and 240 Nm although used to be 210 Nm and 235 Nm respectively. What is more, the standard model`s price was left unchanged.
In 2003 TT was first provided with 3.2-liter V6 engine that VW Golf R32 featured. 6 cylinders assure 250 hp, which is 184 kilowatt.
TT quattro sport was introduced in April, 2005. It was a special edition. This model`s 1.8-liter turbo-charged motor produced 240 hp when turbo-charger`s pressure was increased. Therefore TT quattro sport was the most capacious TT provided with a turbo-motor. Optimized weight distribution (what is more, it was 75 kg reduced) resulted in improved dynamic characteristics, which are much better than of a usual 6-cylinder engine.
The Platform
First generation TT was based (technically) on the platform of Audi A3 as well as on the platform of the forth-generation Golf. What is more, rear axle and suspension based on trailing arms that are linked with the help of a bar that Golf features (this is a rigid axle de facto) were replaced by independent suspension with a trailing arm or with two crossbars.
The technologies Golf V and Audi A3 (second generation) boasted of were used when designing second generation TT. However these technologies had be restyled as the car featured rather large wheels. The front axle is a McPherson gear with offset fulcrum bearings while the rear axle is a four-link construction. Audi`s frame was made of aluminium in order to assure 58:42 weight distribution. Audi magnetic ride usage was also an innovation. That is a magneto-rheological damping fluid that assures dynamic combination of damping power with road conditions. There is a magnetic field with small iron particles therefore the fluid with these particles in it can change its viscosity and consequently, the dampers` rigidity.