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Been researching this recently, my contribution, which is welcome for fact checking:
Tesla Motor unit Options
Now at least 3 dealers selling them (EVWest, HSRMotors, Zero-ev.co.uk):
Large Drive unit (132kg, 475+ HP), 9.73:1, open differential
Rear Small Drive unit (88kg 260+ HP), rear refers to placement in Model S Dual motor model. Rear unit is wider. 9.34:1, open differential internally installed.
Front Small Drive unit (93kg 260+ HP), front refers to placement in Model S Dual motor model. Front unit is taller. 9.34:1, open differential internally installed.
Model3 drive unit not yet commonly available and different type of motor from Model S.
Comes with Invertor, Open Diff and Motor as one unit. Quaiffe LSD available from Zero-EV).
All models requires controller.
Controllers available:
HSR Motors/057 Controller board, replicates Tesla CAN and therefore same performance as stock.
EVBMW (Damien Maguire) has open source boards that can run above stock HP, characteristics.
Big gotcha so far is that the Tesla units are designed for mounting between wheels (eg in place of stock diff) which given their size, weight and deviation from ICE standard (engine in front, driveshaft to rear etc) is a legalisation impossibility in many regions around the world. Only Polykup (an independent conversion shop) has demoed a front engine bay install (in an Audi S5) by separating a large Tesla motor unit into its 3 major components (motor, inverter and diff).
Tesla Motor unit Options
Now at least 3 dealers selling them (EVWest, HSRMotors, Zero-ev.co.uk):
Large Drive unit (132kg, 475+ HP), 9.73:1, open differential
Rear Small Drive unit (88kg 260+ HP), rear refers to placement in Model S Dual motor model. Rear unit is wider. 9.34:1, open differential internally installed.
Front Small Drive unit (93kg 260+ HP), front refers to placement in Model S Dual motor model. Front unit is taller. 9.34:1, open differential internally installed.
Model3 drive unit not yet commonly available and different type of motor from Model S.
Comes with Invertor, Open Diff and Motor as one unit. Quaiffe LSD available from Zero-EV).
All models requires controller.
Controllers available:
HSR Motors/057 Controller board, replicates Tesla CAN and therefore same performance as stock.
EVBMW (Damien Maguire) has open source boards that can run above stock HP, characteristics.
Big gotcha so far is that the Tesla units are designed for mounting between wheels (eg in place of stock diff) which given their size, weight and deviation from ICE standard (engine in front, driveshaft to rear etc) is a legalisation impossibility in many regions around the world. Only Polykup (an independent conversion shop) has demoed a front engine bay install (in an Audi S5) by separating a large Tesla motor unit into its 3 major components (motor, inverter and diff).
