Resistor coil update

buckanduck

I was wondering what you could do to a resistor coil cart and give it more torque. I dont have enough money to convert it to a controller. I have heard you can upgrade the wires to 4 gauge wires and convert to a 48 volt. Its a 36 volt but i dont want to have to buy more batterys when it comes time for me to buy new ones. Any imput would be greatly appreciated. Please remember that im a rookie at this =)

BGW

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adamj12b

The reason you dont have enough torque is because of the resistors.

A resistor is a current limiter. Since torque is proportional to current, this is how the resistors affect the speed of the cart. With less torque, the cart goes slower.

As for inexpensive ways to increase torque...Depending on the health of the cables, you might be able to get a little bit more. Over time, the resistance of the cables will increase due to corrosion and heating. Check and see if any of the cables are getting hot, Especially near connections. If connections are getting hot, you might just be able to put a new lug on it to help.

Adding a battery or 2 will give you more torque, but only because the voltage potential is higher. But, you need to be careful as your resistors will have to burn off 30% more.

Really, you will not gain much torque without putting in a controller. When you put a digital switching controller in, You will increase your efficiency from the resistor cart greatly. And you will have full torque from stopped.

-Adam

scottyb

Never put 48v through a resistor cart.
Components will eventually melt down.

crf60

What if you get higher amp cyilonoid?

scottyb

A solenoid is a safety switch .... A solenoid can be a limiting factor in a drive system. In this case the resistor coils and the V glide are not capable of handling any higher voltage/amperage without a melt down.

SKUNKVILLE SCOOTER

Hey Scottyb,

I get the impression you are a young & adventurous guy and I'd like your thought or experience on something 'Outside the Box'.....

What if; on a resistor cart, additional voltage was added to the full throttle position wire only. This wire does not run thru the resistors and would only be applied to the the motor when the Go Pedal was totally mashed....?

Maybe one could control this added current through a switch like a Nitros System....?

My '89 Marathon has plenty of torque during modest throttle positions, but a Flat-Out boost would be pretty cool to blow the doors off my neighbor's cart.

Any and all input is welcomed and don't worry about offending me, I've been insulted by the best.

Thanks.
Danny aka: SKUNKVILLE SCOOTER

scottyb

Yes there is a thread somewhere about a fellow who did just that with a bunch of relays or such ... If you search hard enough you will find it. He added a 12v battery so he could kick in 48v. I don't find a boost at full throttle that useful, but some do.

I have seen too many melted golf carts to pursue any upgrade that only works in one peddle position.

SKUNKVILLE SCOOTER

Hey Scottyb,

Thanks for the 'Heads-Up'...

Found a thread by Roady89 complete with YouTube Videos.
Very impressive to say the least....!