Torque Converter: Description and Operation

3250 Torque Converter/Starting Acceleration

Starting performance has been improved by altering the characteristic of the torque converter. To further improve acceleration when the accelerator pedal is pressed quickly followed by a downshift into 1st gear, the converter's bridging coupling is now closed in this situation, thereby reducing slip. A further improvement in acceleration when shifting from first to second gear has been produced by increasing the rpm of the shift point (from approx. 5800 rpm to 6300 rpm), thereby realizing a higher shifting speed (7200 rpm instead of 6900 rpm) and a shorter shifting time.

In order to further enhance the sporty character of Tiptronic S, in the 911 Carrera and the 911 Carrera S the engine can also be revved up to the engine speed limit when the vehicle is stationary, when the selector lever is set to "P" and "N".

IMPORTANT: If the engine is revved to over 2500 rpm when the selector lever is set to "P" or "N" and a gear is then engaged, the injection signal will be blocked until the engine speed drops to a level which cannot cause any damage to the transmission.