return to homepage

Choosing Correct EV Motor Size

How do you choose an EV motor which will deliver high horse power and torque equivalent to a gas powered sports car?

Hi -

In an EV, the motor is basically the middleman between the batteries and the road. So the question is, "which motor can deliver the torque I'm looking for without destroying itself in the process?"

The motor that will fit your needs best depends on how heavy the car is and whether you're looking for quick acceleration or flat-out speed.

You're looking for the smallest motor possible that can accomplish this, because the extra weight of a larger motor would be better spent on batteries. Aggressive cooling of the motor and controller helps, too.

For quick acceleration, you really can't beat the series wound DC motor! A light-ish to medium size car will use a 9" motor, a heavy-ish car 11".

I would definitely recommend talking to a conversion shop or motor distributor about your specific needs before you actually lay out money and buy a motor.

All the best,

Click here to post comments

Return to Motor Q&A.

New Book!

Let's Talk About Electric Cars book

From Electric Cars are for Girls

Conversion Help

EV Conversion Videos

EV Conversion Videos

Electric car Conversion books

EV Conversion Books

CanEV Conversion Kit

EV Conversion Kits

Conversion Info

Electric Car Conversion

Conversion Central

electric car conversion

Build Your Own

Electric Car Motor

Electric Car Motors

Electric Car Batteries

Electric Car Batteries

[?] Subscribe To This Site

follow us in feedly
Add to My Yahoo!

Charge On! Newsletter

Once a month (or less), I'll send out a newsletter called Charge ON! with the latest interesting electric car stuff.

To get on the list, fill in your name and email address below, and I'll send you a note to make sure it wasn't the DOG that subscribed you by accident; )




Don't worry -- your e-mail address is totally secure.
I promise to use it only to send you Charge On!.
Enjoy This Site?
Then why not use the button below, to add us to your favorite bookmarking service?

| Electric Cars are for Girls Homepage | Privacy |Contact |About Me

Copyright 2006-2014 All Rights Reserved.