In 2013, Audi launched the third-generation A3, followed two years later by the RS3, the most powerful version of this model. This car is equipped with a 2.5-litre, five-cylinder turbocharged TFSI petrol engine. The first year models have 360 horsepower, and after a model update in 2017, the power has been increased to 400 horsepower. The same engine is fitted to the third-generation Audi TT RS, which debuted in 2014.
As soon as these cars were launched, StartLine Motors decided that it was necessary to increase their capabilities, which reached the 1000 horsepower mark following the modifications.
To achieve this level of power from a 2.5 litre TFSI engine, reliability and the elimination of weak points is the first priority. This requires the replacement of the factory engine connecting rods, which are not able to withstand the loads and are bending, as well as the replacement of the pistons. The engine block of this engine is made of aluminium, which requires cylinder gouging and the engine head studs must be replaced with stronger ones. Another modification is the widening of the intake and exhaust valve passages, which also entails the replacement of the standard valves with wider ones. Following this work, the standard turbine is replaced by a new larger one, which provides a more efficient air supply to the combustion chamber of the engine. The larger turbine is accompanied by a new exhaust manifold.
The larger turbine requires more efficient cooling of the incoming air and therefore a larger intercooler is installed. The standard engine air intake system is replaced by a more efficient one. The increased air intake efficiency also affects the exhaust system and therefore the factory system shall be replaced with a new one that provides the required exhaust gas flow. The new exhaust system not only provides the performance required for maximum power output, but also a new, more aggressive engine sound, but the dampers in the exhaust system ensure that the aggressive engine sound is muffled for more comfort.
A further step in the effort to boost the 2.5-litre TFSI engine's power to 1000 horsepower is the modification of the fuel system. The fuel tank is fitted with a new, high-performance pump and more efficient fuel injectors. These modifications are necessary to allow the injection of ethanol (E85) into the engine to achieve maximum power.
The power enhancements also include new control computers for the Syvecs engine and traction control systems, which can be set to distribute engine power equally to the front and rear wheels, but the driver is free to adjust the ratio according to his needs or the current surface conditions. Another advantage is the unique traction control system, which allows maximum engine power to be used when the car is moving, but prevents the drive wheels from spinning. This ensures maximum traction, allowing you to enjoy extremely quick and efficient starting and stability at high speeds.
Both the RS3 and TT RS are equipped with seven-speed, dual-clutch automatic (S-Tronic) transmissions. This is a very fast gearbox that shifts instantly, but if the engine power is increased to 1000 horsepower, modifications are required. This includes a significantly stronger clutch and a new limited slip differential (LSD).
The full effectiveness of the modifications has already been tested, verified and finalised on StartLine Motors Audi RS3 and TT RS test cars, so when your car arrives at the workshop, the modifications can be installed quickly enough, as all the modifications and the manufacture of some of the components are carried out in StartLine Motors professional workshops.
