The electric motor you are going to need should be at least 8 inches

This is used to control the amount of energy flowing to the motor so that you can control your speed. If you're thinking that it's going to be too hard and you won't be able to do it that's untrue. Lastly, you will need a charge controller, a potentiometer, and some nuts and bolts from your local hardware store.Regardless of what anybody tells you it is possible to build your own electric car. The last part is to hook up the other side of the potentiometer up to the electric motor. It takes about two weekend to do, and saves you about 75% on gas every month. Our goal is to reach highway speeds of 55MPH and this size of motor will allow you to reach that. I'm going to outline the basic steps that are needed so that you have a basic understanding on how to build your own electric car. You will need to hook the charge controller in between your charging source and the batteries. Many people use their own car, but some people go out and buy one because they want to successfully convert a car to electric for something to drive on short trips. After you've decided which car you're going to use for the conversion it's now time to buy all of the parts you are going to need. or you can get them for free.. The next step is to mount the motor to the drive shaft. Next, you will need to hook the batteries up to one side of the potentiometer. To begin with you will need to hoist out the engine and transmission out of your car. The electric motor you are going to need should be at least 8 inches in length and less than 12 inches in length.. After those steps are completed it's simply a matter of hooking everything up. Many golf courses use electric golf carts, and those batteries are swapped out every two years or so as part of regular maintenance. For me that turned into about $110 in savings. By simply asking around you can find what you need for free. It's quite a bit easier to do if you have a friend helping you so I suggest you ask one. As long as you have some basic DIY skills and can hold a screwdriver you'll be able to achieve this. This is quite easy as you can use existing mounts on the frame to mount the motor. This is a simplistic overview, but it's not much harder than what I've described. After the motor is mounted it's time to stuff as many batteries under the hood as you possibly can. With a range of around 200 miles most people only drive the electric car. The rest of the batteries can be mounted in water-cooled motor your trunk, but if you have a large enough hood they should all fit under it. Lastly, simply cut the wire and hook this up to a switch (or key) so that you can turn the car on and off. Next in the list is 14 deep cycle 12 volt batteries. You can buy these. You will also need to mount the potentiometer up to the gas pedal. The charge controller is used so that your batteries don't overcharge and explode. The first step is finding which car you're going to convert.