Electric Motor Power: 180 HP & Car Fitment

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Electric motors with 180 horsepower are available, with the Tesla Roadster's 3-Phase AC Induction Motor being a notable example, delivering 288 peak horsepower. This motor operates at 375 volts and can draw up to 900 amps, equating to a power requirement of approximately 550 kW for optimal performance. For a 180 HP output, an electric motor would need to provide around 135 kW. The discussion highlights the complexity of matching motor specifications to vehicle fitment and power requirements. Understanding these specifications is crucial for anyone considering electric motor integration in cars.
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The first question, is their any electric motor (ac/dc) that has 180 horsepower and can fit comfortabley in a car. Second question, (if no for the first question disregard this one) how much power would be needed to power it, amps and voltage.
 
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QAT said:
The first question, is their any electric motor (ac/dc) that has 180 horsepower and can fit comfortabley in a car. Second question, (if no for the first question disregard this one) how much power would be needed to power it, amps and voltage.

The Tesla electric car comes to mind:

http://www.teslamotors.com/roadster/technology

The Roadster is powered by a 3-Phase Alternating Current Induction Motor. Small, but strong, the motor weighs just over 115 pounds. 375 volts push up to 900 Amps of current into the motor to create magnetic fields. It delivers 288 peak horsepower and 295 lbs-ft of torque at the driver's command. At top speed, the motor is spinning at 14,000 revolutions per minute.
 
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Note that one horsepower = 745.699872 Watts (according to Google Calculator, anyway.) This means that if you need 180 HP, you are looking at a 135 kW output electric motor, to give you an idea of what you need :)

The Tesla one would be 288 hp, which is 215 kw. That means you need more power than that to actually spin the motor, if I'm not mistaken. According to 375V, 900A, 3 phase AC, that's... 550kW? That seems high...
 
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