Department - Author 1

Mechanical Engineering Department

Degree Name - Author 1

BS in Mechanical Engineering



Primary Advisor

Peter Schuster, John Ridgely


The objective of this project was to redesign the drivetrain of the electric 1977 Porsche 911 Targa S with the goal of optimizing the drivetrain for motor efficiency and performance. The focus was to redesign the interface between the electric motor and rear wheels to maximize the efficiency of power transmission from the motor to the ground.

Two systems were proposed, a fixed gear reduction and two motors with an electronic differential. The fixed gear reduction was chosen to be designed and built by replacing the stock Porsche transmission with a differential featuring a favorable gear ratio for the electric motor currently in the Porsche.

The project provides detail design of the fixed gear reduction system's integration into the Porsche and provides testing evidence of the improvements over the stock transmission.