Does a Bigger Motor mean more speed???

If the increase to 36V also increased the max speed of the board then no, you would not gain any speed. But, unless the motor can handle the increased voltage for a long period of time you may blow up the motor. If the 24V is a modest rating you should be fine.

Normally, to increase the torque/acceleration etc. you need to increase the Amperage. The only way to do that is by modifying the existing controller or getting a new one.

If going to the 36V didnt do anything, then that means either the controller or motor is limiting the voltage to 24V regardless.

Hope this helps.....

If you went to a motor that was truly a higher watt output, it would increase your power output.. Looks like you might be able to fit a 500 watt motor in there. Here is another thing though. if the 500 watt motor was rated for 36 volts, it may not go at as high a speed as a lower watt 24 volt motor run at 36 volts. That is because when you over volt the motors, they tend to run at a higher rpms=more top speed. They generate more heat and wear the brushes out faster too. I remember some guy at the pocket bike forum was running a 36V Razor MX500 500 watt dirt bike at 60 volts. His top speed went from 16 MPH to nearly 30! the motor got hot enough to burn your hand after a short ride though, and probably won't last very long..

Yes and no. It can get complicated to give an answer unless you get real specific. Basicly, you will go faster by pushing more watts through the motor. If the smaller motor can do it without frying, you don't need a bigger motor. Often the simplest way to increase speed is to increase voltage. The same amperage controller, and same motor will go faster with more voltage. After all, the voltage increase ends up giving a higher wattage. So a higer voltage controller and another battery is a good starting point for more speed.

At some point, your motor will fry pretty quick if you have too much wattage going through it so then a bigger motor is required. The longer the ride will be matters too, with a large motor being able to go further at a high wattage than a small one. If you got a bigger amperage controller as well as higher voltage, you are even more likely to gain some speed with a bigger motor.

The bigger motor may be able to have more speed and torque since you already increased the voltage, especially if the small motor is not drawing all the watts you now can provide. You did the first two, so go ahead and put in the motor. If nothing else, it will not overheat so quick with a bigger motor.