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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV.



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Old 03-21-2010, 07:20 PM   #1
knard
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Default 1989 marathon

hey guys new to the forum as well as the golf cart game. i just recently purchased a 89' marathon for next to nothing. i put new batts in it and replaced most of the wiring as well as the solenoid. anyway, it has a stock motor(2.0hp@2800/8000) and was wondering of cheap ways to make it faster or just save myself the time and money and just swap it for something a little more beastly. also, if i do end up swapping is it an easy process. btw im looking to get near 20+mph. thanks for your time
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Old 03-22-2010, 08:45 AM   #2
roady89
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Default Re: 1989 marathon

You can get motors for it but thats not Cheap. Going to 48 volts is a good way to make it faster but thats not cheap either. Really, theres no cheap way to do it. Cheap is also a relative term. I guess the cheapest would be to have someone like EMP rework your existing motor.
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Old 03-22-2010, 09:08 AM   #3
Fleck
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Default Re: 1989 marathon

Like Roady sid; "There is no cheap way". I converted mine to 48V and changed the motor, controller,soleniod and cables and it was worth even penny I will run 24mph on flat land with 2 people on it and has alot of torque. Good luck
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Old 03-22-2010, 01:00 PM   #4
knard
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Default Re: 1989 marathon

what about putting in lower ratio gears? What engine are the best for top end speed and for the price?
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Old 03-22-2010, 01:16 PM   #5
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Default Re: 1989 marathon

I don't think they make a gear swap kit for the Marathon? You could check with our site sponsors. they are very helpful around here. I'm running a 7 hp GE Industrial motor. I believe it was made for a fork lift. It spins the 25" mudders nicely.
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Old 03-22-2010, 01:26 PM   #6
knard
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Default Re: 1989 marathon

Did you remove the resistors after you put in the contoller? what is the ball park figure for your upgrades?
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Old 03-22-2010, 01:54 PM   #7
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Default Re: 1989 marathon

Ya the resistors are gone. Basically I took the seat off and rebiult everything under it. Motor, cables, controller, soleniod, charger and all the parts inbetween cost me about $1700.
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Old 03-24-2010, 08:41 AM   #8
knard
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Default Re: 1989 marathon

Can I run a 48 volts to a 36 volt soleniod and engine?
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Old 03-24-2010, 08:52 AM   #9
scottyb
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Default Re: 1989 marathon

Motor. Electric motors. Gas engines
You can run 48v to the 36v motor. It will increase both torque and speed. You cannot safely operate a 36v solenoid with 48v as it may weld shut leaving you no way to turn the thing off ...
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Old 03-24-2010, 09:46 AM   #10
knard
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Default Re: 1989 marathon

Sorry abour the engine post, i meant motor which you figured out anyway. I just recently replaced the solenoid within the last week when I was just getting the cart running and now I want to get a little bit more speed. Will the 36 volt solenoid hold up for a little while until I can upgrade to a 48 volt? I have already put a bunch of money into it just to get it to run (batteries, brake cables, battery cables, solenoid, key switch, axel and drum) so I didn't want to have to spend more money.
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