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



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Unread 07-25-2008, 12:53 PM   #11
steeplejack x
 
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Default Re: Old EZGO(87) need advice on new Parts

On those old resistor carts, you can easily add voltage. Just add batteries. I'd suggest if you are planning on doing this to upgrade the buss bars in the FNR to handle the higher current or you'll melt the stock ones eventually.

Also note that since the resistors are only out of the circuit at stop and WOT then if you run higher voltage i.e. 48v or higher, the resistor coils will genuinely light up red hot very quickly on anything other than stop or WOT so it makes driving a bit more difficult. That is, full throttle, coast, full throttle, coast, etc. etc. If you don't, your resistor coils won't last very long at higher voltage.

You'll also need a way to charge the new voltage. I just used an additional charger on the added batteries. In my case, I played around with 48v and 60v on a resistor cart a couple years ago. Big time kick in the pants. Scary even since I hadn't done suspension/steering. Very squirrelly over 30mph but I knew this going in so I chose to look like a total doofus with helmet, welding gloves, knee pads, elbow pads, and my camo chaps. And no comments from admin....

Depending on your budget, you can convert this to ESC which is much better for speed control and much easier on your batteries. Most will say you'll never get your money back out of the cart which is true, but if you don't plan on doing a build for sale it is an option. And I abhor plastic so I prefer the earlier model metal (steel) carts.

Sorry so long winded. Have fun with it and be safe.
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Unread 07-25-2008, 01:18 PM   #12
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Default Re: Old EZGO(87) need advice on new Parts

I don't think that I will be turning this one into a Monster cart, but a little more power is good, as I will be adding 2 more seats... Where I’ll be driving it the speed limit (in a car) is 5mph and in a golf cart it is "reasonable speed" I won't be taking it over about 12Mph anyway, but I want the option of a little more power if needed to get up some steep inclines.

I may build a big cart later but it will most likely be to haul a small boat or something.

I also don't think that I will want the resisters to get red hot and cause problems, especially since I will be carrying by children in it as well. I think they would look funny in helmet, welding gloves, knee pads, elbow pads, and chaps. (I guess picture of it could be used for bribery later in life) Maybe I'll just call carts Zone and see if they have a coil upgrade instead of upgrading voltage at this time.
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Unread 07-25-2008, 05:30 PM   #13
steeplejack x
 
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Default Re: Old EZGO(87) need advice on new Parts

You might try to spend your dollars on a newer cart unless your heart is set on this one. Beginning in 1989 EZGO started building electronic speed controller carts. That said the resistor carts were designed to go from hole to hole (yes, golf!!) at WOT, not for driving around slowly.

Older carts are a bit more problematic for parts and upgrades. It can be done, but some might say it is good $ after bad $ since you will never get a return on your investment so to speak.

Newer models have much more readily available upgrades. In EZGO terms, from the Medalist line plastic bodied carts to the late model PDS carts.

In the end, it's your dollars and I would suggest converting any resistor controlled cart to ESC or selling it in favor of a newer cart with ESC and alot friendlier for upgrading. And a far site better if you ever plan to let children/kids operate it. IMHO, kids and the resistor speed system don't play well together.

My $.02.
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