The 2.7-litre V6 Biturbo Design and Function Self-study Programme 198
Turbocharged engines are already something of a tradition at AUDI. The task now facing AUDI’s engineers was to develop a worthy successor to the 5-cylinder turbocharged engine. One of the key development goals for the turbocharged engine was to achieve a good level of dynamic response, particularly at the bottom end of the rev band.
The goal of AUDI’s engineers was to realise a high “basic torque level“ and a torque characteristic that rises in direct proportion to engine speed to its peak. The term “basic torque level“ describes the torque which is immediately available when the throttle is opened (e.g. at part throttle or in overrun)
This engine will also be used in the Audi S4 and Audi A6.
The engine used in the A6 has a comfortoriented setup, which means that it has different torque and power output.
This effect was principally achieved by modifying the software configuration of the engine control unit.
A tuning protective device prevents the S4 engine control unit being installed in the A6!
This prevents misuse, which can result in damage to the drivetrain! An auxiliary heater is not available as an option for the S4 and the A6, due to the constraints on space.
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