Electric Motors Increasing Torque?

Well its simple,

If you dont have to rewind the motor you can go for gearing...

.you can use compound gears or reverted gears or simple gears... By doing this gearing it certainly increases the torque but you have to select the proper gears to get high torque...

If the motor needs to accelerate,

and if you increase the inertia,

you will loose torque due to Ialpha torque.

I would not increase the inertia.

In that case increase the voltage or magnet

strength to increase the torque.

If the motor needs only steady state torque

then you can increase the inertia by

increasing the radius and thus the torque.

So the motor shape governs these trade-offs.

Another thing to consider is going to a

brushless DC motor. You can increase the

efficiency by about 10 percent to maybe 90%.

The starting motor on a car is extremely powerful. You can put the car in gear and ride on the tiny motor. Instead of many winds of thin wire, there are few winds of very thick wire. The strength is out of this world but you will be lucky to move a car a hundred feet on a fresh car battery as the power consumption is expensive. You would also need good heat sinks.

Any design is a set of tradeoffs, and you have to balance them. Without lots of details of your design, I can't tell which is better.

More turns increases the field, but decreases current, which decreases field. thicker wire increases current, but takes up moe space. etc.

Try them.