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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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05-22-2017, 11:19 PM | #1 |
Not Yet Wild
Join Date: May 2016
Location: Griffin, GA
Posts: 66
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Late 90s Series TXT - question around gearing
I have a late 90s txt series cart (don't know exact year because previous owner removed both the frame serial decal and dash tag). I have upgraded to an alltrax sr48500 controller, 400amp solenoid and hd fnr switch. I have a plum quick bandit motor, 5" in lift and 21" tires. 36volt system. Eventually will get 48v upgrade when time to buy new batteries.
I want more speed though. I have topped out at around 21-22 On flats but still very low (10-13) on hills in my town. With the added torque from the upgrades, would I benefit from rehearing to either 8:1 or 6:1 gears? What kind of speed changes should I expect with either gearing set? I know there would be a loss of torque, but after upgrading the system I should be good there. Thanks! |
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05-23-2017, 05:53 AM | #2 |
Gone Mad
Join Date: Oct 2009
Location: Buford, GA
Posts: 8,988
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Re: Late 90s Series TXT - question around gearing
Anything you do mechanically to increase speed on flats will hurt you on hills. In general, speed and torque are inversely proportional.
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05-23-2017, 06:59 AM | #3 | |
Master of All Things
Join Date: May 2013
Location: West Columbia, Texas
Posts: 17,892
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Re: Late 90s Series TXT - question around gearing
Quote:
your stock rear end has a 12.44:1 differential in it.....with your current set up, and everything remains that same, like your motor rpm, NOW on flat ground you get 22 mph. if you switch gearing in the rear end this is what you would get speed wise. remember these are just mathematical calculations....the actual number might be a little less as it doesn't take into account other losses....like wind resistance. Keep in mind.....speeds like this are pretty shaky, especially on a lifted cart! 8:1.....34 mph 6:1.....45 mph |
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05-23-2017, 09:49 AM | #4 | |
Not Yet Wild
Join Date: May 2016
Location: Griffin, GA
Posts: 66
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Re: Late 90s Series TXT - question around gearing
Quote:
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05-24-2017, 09:25 PM | #5 |
Gone Wild
Join Date: Dec 2008
Location: Summerville, SC
Posts: 331
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Re: Late 90s Series TXT - question around gearing
My Series TXT does 35 (at least - no straightaways in my neighborhood long enough to eke out any more speed but I think it's got a few left) with 20.5 inch tires, Jakes Long Travel Kit, D&D High Speed Motor, similar Controller, 48V conversion and 6:1 gears. Going to 6:1 gears hurt torque, but high amp controller and 48v conversion makes it a lot less noticeable. Wouldn't want this set up on really hilly terrain though.
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05-24-2017, 09:28 PM | #6 | |
Not Yet Wild
Join Date: May 2016
Location: Griffin, GA
Posts: 66
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Re: Late 90s Series TXT - question around gearing
Quote:
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05-24-2017, 10:38 PM | #7 | |
Gone Wild
Join Date: Dec 2008
Location: Summerville, SC
Posts: 331
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Re: Late 90s Series TXT - question around gearing
Quote:
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05-24-2017, 10:40 PM | #8 |
Not Yet Wild
Join Date: May 2016
Location: Griffin, GA
Posts: 66
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Re: Late 90s Series TXT - question around gearing
I have not. I may look into it. The only issue is reviewing their site it looks like they don't have anything for a series cart. Or I'm looking at it wrong
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05-25-2017, 06:47 AM | #9 |
Gone Wild
Join Date: Nov 2016
Location: Wilmington NC USA
Posts: 268
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Re: Late 90s Series TXT - question around gearing
You just need to contact PlumQuick they can make just about anything you need.
If you want to sell the Bandit PM me ! I have a 91 marathon that Bandit would be great in I don't want to hijack your thread so a PM is good if anyone tell me if a late 90s TXT is the same motor as my 91 Marathon ? |
05-25-2017, 11:02 AM | #10 | |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Late 90s Series TXT - question around gearing
Quote:
Leaving the gears and tires as-is and going to 48V will up your top speed to about 29MPH while upping the torque by 33%, for a net gain of 19% over stock after torque loss from tire height is factored in. If 29MPH isn't fast enough, get a motor that is moderately higher speed than stock while retaining about the same torque as stock. |
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