Audi is extending the engine range for its new TT generation. From July, the compact sports cars will also be available in a 1.8 TFSI version developing 132 kW (180 hp). The turbocharged 1.8 TFSI has a displacement of 1,798 cm3 and achieves its peak torque of 250 Nm (184.4 lb‑ft) across the rev range of 1,250 to 5,000 rpm. At part loads, an additional manifold injection system supplements the FSI direct injection, to cut emissions. The Audi valvelift system varies the stroke of the exhaust valves, improving the engine’s response. A compact rotary valve module for thermal management and the exhaust manifold integrated into the cylinder head both play a major part in the four‑cylinder engine’s efficiency.
The TT Coupé with six‑speed manual transmission accelerates from 0 to 100 km/h (62.1 mph) in 6.9 seconds, or in 7.0 seconds with the optional six‑speed S tronic, and continues right up to a top speed of 241 km/h (149.8 mph). In the case of the Roadster, the corresponding figures for the standard sprint are 7.2 seconds with manual transmission and 7.3 seconds for the S tronic version. The top speed for both combinations is 237 km/h (147.3 mph). The 1.8 TFSI Coupé version covers 100 kilometers (62.1 mi) on an average of only 5.7 to 6.0 liters of fuel (129 – 138 g CO2 per km) (33.6 – 30.9 US mpg; 207.6 – 222.1 g/mi); the TT Roadster 1.8 TFSI achieves this on 5.8 to 6.1 liters (132 – 142 g CO2 per km) (33.1 – 30.5 US mpg; 212.4 – 228.5 g/mi).
As well as the new entry-level engine version, Audi supplies the new TT generation with a choice of three two‑liter engines: The TT 2.0 TDI ultra with 135 kW (184 hp) and 380 Nm (280.3 lb‑ft) of torque needs only 4.2 liters of fuel per 100 kilometers (56.0 US mpg). That corresponds to CO2 emissions of 110 grams per kilometer (177.0 g/mi) and therefore represents new best-in-segment fuel economy. Then there are two versions of the 2.0 TFSI: In the TT, the supercharged petrol engine develops 169 kW (230 hp) and 370 Nm (272.9 lb‑ft) of torque; the power output of the TTS is 228 kW (310 hp) and 380 Nm (280.3 lb‑ft). The Coupé sprints from 0 to 100 km/h (62.1 mph) in 4.6 seconds.
