Motorcycles, Snowmobiles, Go-Carts, ATV's and Golf Carts - Need help With this

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View Full Version : Need help With this


thescreensavers
10-29-05, 05:42 PM
I Have 2 750watt electric motors 36v 27.1amp.

I would like to build a go cart out of these 2 motors and get the most speed possible.

What are your estimates in how much speed I can get out of both motors.
if i reach 36v 27.1amps. I was thinking of 6 12v 18amp Lead acid battery's 3 battery's for each motor.

My plan is one motor is on the rear left and the other is on the rear right

so both motors are powering 1 rear wheel.

How fast could that go.

Give me your Ideas or comments about this or which setup I should use with the two motors to get the most speed out of it. Thanks in advance


kartracer55
10-29-05, 06:47 PM
Dont bother... 6 batteries, 2 motors, 1 adult+ a rediculous amount of weight. Dont bother with it. For the money you will spend on 6 batteries, go pickup a used 12hp kohler or something.

Anyway, speed depends on the RPM of the motors and the "gearing" that you use. Also, keep in mind, because electric motors operate at one speed, a centrifugal clutch wont work... you will need a manual clutch for when you want to stop.

Jim

thescreensavers
10-29-05, 06:49 PM
MY1020 36 Volt, 750 Watt, 2500 RPM, 27.4 Amp, permanent-magnet motor. 11 tooth sprocket for #25 chain. 12 gauge power leads.
Dimensions: 4-1/4" W x 5-1/2" L not including shaft. 4-1/2" W x 6-1/2" L including shaft.


kartracer55
10-29-05, 09:33 PM
I still need more info...


wheel diamter (or circumference... it would save me some work) and the gear ratio.

Jim

thescreensavers
10-29-05, 11:12 PM
I dont know the wheel diamter or the gear ratio.

Just make them up to what you think will make it go fastes.

kartracer55
10-30-05, 02:50 PM
I can just make it up... i need the size ratio of the front driver to the rear driver, to calculate the wheel speed. I need the wheel size so I can figure out inches>feet per minute...then convert it to mph.

jim

thescreensavers
10-30-05, 03:19 PM
wheel size is 6"

mla2ofus
10-30-05, 06:19 PM
kartracer55, why do you figure any clutch is needed with an elec. motor? Don't you cut power to it to stop and apply power to start?
Mike

kartracer55
10-30-05, 06:45 PM
You could use a switch, but because of the amperage, youd wear it out fast unless it was a relay ($$$$$) You cant just touch the cable to the electric motor... its like trying to jumpstart a car by just touching the clamp; it will only spark.

Jim

thescreensavers
10-30-05, 10:40 PM
thats not my question i know about wireing and everything all i need is waht i said.

kartracer55
10-31-05, 05:37 AM
Ok... i have the wheel size, now I need the gear ratio... tell me the number of teeth on the front and rear sprockets, or if its a belt set up, the diameter of the front pulley and the back pulley. You need that ratio to figure out the wheel speed.

Jim

thescreensavers
10-31-05, 10:54 PM
I do not know lets say youll buy everything what will you put?