The 2.0 TFSI® engine in the Audi TT Sportback concept captivates with its performance characteristics: It generates 294 kW at 6,400 rpm, with a specific output of 147 kW per liter of displacement. The four cylinder engine puts 450 Nm of torque on the crankshaft between 2,400 and 6,000 rpm, with over 300 Nm already available at just 1,900 rpm. The high-performance engine limits fuel consumption to an average of 7.0 liters per 100 kilometers. This equates to CO2 emissions of 162 grams per kilometer.
As a member of the Audi EA 888 engine family, there is a comprehensive package of high-end technology on board for the turbocharged direct-injection unit. The camshaft adjustment on the intake and exhaust sides and the Audi valvelift system, which varies the stroke of the exhaust valves in two stages, ensure good filling of the combustion chambers. At part load, indirect injection complements the FSI® direct injection. The exhaust manifold embedded in the cylinder head is an important component of the thermal management. The flow of coolant is managed by a powerful rotary slide module.
In order to generate the high power output, the 2.0 TFSI® has undergone profound modifications, including special aluminum pistons with an integrated cooling channel and a crankshaft made from ultra-high-strength forged steel. The crankcase consists of a new, high-strength casting alloy and the cylinder head has been designed for the increased gas flow rate. The turbocharger has also been redeveloped and builds up a maximum relative boost pressure of 1.8 bar. It contains a mixed flow turbine wheel that is noted for its particularly fast start-up performance.