TT gets RS power

  • 30-Apr-2009 03:55 EDT

The Audi TT RS comes standard with a fixed rear spoiler, but an automatically deploying system is optional.

Audi’s powerful addition to its range announced at the Gene­va Motor Show ­was the TT RS quattro in Coupe and Roadster forms, with a new, 2.5-L 250-kW (335-hp) five-cylinder turbocharged engine. Peak torque is 450 N·m (332 lb·ft) from 1600 to 5300 rpm, and performance figures include a 0-100 km/h (0-62 mph) time of 4.6 s. Combined fuel consumption is 9.2 L/100 km.

The 49 cm (19.3 in) long, 183-kg (403-lb) engine is installed transversely in the TT. Weight savings includes the use of vermicular-graphite cast iron for the crankcase. Audi has previously used the material for larger-capacity TDI (diesel) engines. Fuel injection pressure is 120 bar (1740 psi), compression ratio is 10:1, and the turbo generates up to 1.2 bar (17.4 psi) of boost. The engine drives through a six-speed manual gearbox.

Aware of the importance of a sports car’s aural signature, Audi has given the quattro GmbH-developed TT RS dual-noise capability: a driver-operated Sport button opens a flap in the left-hand exhaust tailpipe to boost sound levels. An optional Sports exhaust system is also available.

Suspension includes a four-link rear configuration, steering is speed-sensitive electromechanical, and the car’s sports chassis is 10 mm (0.4 in) lower than that of a regular TT. Audi magnetic ride is optional. Wheels are 18-in carrying 245/45 tires. Ventilated disc brakes measure 370 mm (14.6 in) front, 310 mm (12.2 in) rear. The ESP (Electronic Stabilization Program) can be switched off partially or totally.

Aerodynamic aids include a front spoiler that tapers into a splitter. The car’s two tailpipes are encircled by a diffuser insert. A fixed rear spoiler is standard, but a deployable system is an option. The Coupe’s Cd is 0.30.

Top speed of the TT RS is limited to 250 km/h (155 mph), but an extra cost option allows this to be raised to 280 km/h (174 mph).

HTML for Linking to Page
Page URL
Rate It
3.25 Avg. Rating

Read More Articles On

Jaguar's all-electric I-Pace Concept and Ford's EcoSport small crossover open the 2016 Los Angeles auto show.
Mazda will introduce its first-ever diesel engine for the U.S. market in conjunction with the all-new 2017 CX-5 compact crossover.
Volkswagen may have ruined its own diesel engine future in the U.S. by cheating on emission tests, but that isn't holding back other auto makers from introducing new diesel cars and trucks in this market.
Despite two-dollar per gallon gasoline in the U.S., automakers are developing new, even more efficient power solutions.

Related Items

Training / Education
Technical Paper / Journal Article