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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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11-06-2015, 10:32 AM | #1 |
Gone Wild
Join Date: Aug 2010
Posts: 183
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Series cart, 48volt, 7126 AMD motor?
Just pulled the trigger on a AMD 7126, going in my 48 volt converted TXT, anyone got some recorded speeds on 48?
Has the stock 12.44 ratio and 23" tires, 700 amp controller, big cables, hd switch etc from Scotty |
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11-06-2015, 11:16 AM | #2 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Series cart, 48volt, 7126 AMD motor?
Sir Nuke runs that motor at 36V through a SPM500 controller, 2Ga cables and Super-Duty solenoid, etc. and gets 27 MPH on 23" tires.
That means his motor is spinning about 4900RPM at 36V, so upping the voltage to 48V in a similar cart ought to increase the max motor RPM by about 33.3%, and that kicks it up to about 6500, which is upwards of 36 MPH. Of course there are a lot of variables that are unknown and cannot be taken into account, but if your tire type isn't holding you back, it'll probably be in the low to mid 30's. What is you existing motor and what speed do you get with it? |
11-06-2015, 11:31 AM | #3 |
Gone Wild
Join Date: Aug 2010
Posts: 183
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Re: Series cart, 48volt, 7126 AMD motor?
Stock 36v motor, unsure the speeds though, guess low 20's???
If it hits 30 I would be happy |
11-06-2015, 11:54 AM | #4 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Series cart, 48volt, 7126 AMD motor?
You might not be reaching the theoretical cart speed for a stock series motor with a 48V battery pack turning 23" tires, but you're getting close, so 30 is a reasonable expectation.
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11-06-2015, 01:45 PM | #5 |
Gone Wild
Join Date: Aug 2010
Posts: 183
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Re: Series cart, 48volt, 7126 AMD motor?
That should work, found a motor in stock too was a help
Tried call the two popular motor places, thought that would be the way to go. not much luck at all never answer a phone, poor e mail response too |
11-06-2015, 08:12 PM | #6 |
Master of All Things
Join Date: May 2013
Location: West Columbia, Texas
Posts: 17,975
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Re: Series cart, 48volt, 7126 AMD motor?
Shawn, I'll be very interested how your cart runs after you get the new motor in.....as johnnie mentioned my set up is close to yours......and plan to go to 48v when I get my next Pack......
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11-06-2015, 08:51 PM | #7 |
Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
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Re: Series cart, 48volt, 7126 AMD motor?
I dont have much experience with the AMD version of that motor, But the GE version will get you to low-mid 30s on 48v.
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11-07-2015, 11:46 AM | #8 |
Not Yet Wild
Join Date: Oct 2014
Location: Texas
Posts: 25
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Re: Series cart, 48volt, 7126 AMD motor?
I converted my TXT to 48 V exactly one year ago. Here are the specs on my cart:
21" All Terrain Tires 6" Lift 400 Amp Controller HD Solenoid New Trojan 8 V batteries Back seat kit, Standard top, Full Front Windshield A 400 amp vs 700 amp controller shouldn't change top speed (Not sure on this). It would definitely affect acceleration and torque. Until this week my cart had the stock PDS motor in it. I recorded speeds carefully using GPS immediately after installing my new batteries and then 6 months later after break in. New battery top speed was 33 mph, after break it increased to 35 mph. I did install new brakes so there may have been some loosening up there also. I didn't notice much difference in the hill climbing or acceleration during those periods, that is hard to measure without high tech equipment. It was an awesome conversion, I have loved it. With 23" tires that thing is going to be fast. That much torque on those big rollers might be hard on those axles so be careful. I forgot to add: The reason I am snooping around is trying to decide what to do about my motor. It isn't completely dead but it's dying a quick death and I will be very interested to hear your experience with the new high-po motor. I need to decide what I do next.... Last edited by gunnardog; 11-07-2015 at 11:50 AM.. Reason: Add additional info |
11-07-2015, 12:56 PM | #9 |
Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
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Re: Series cart, 48volt, 7126 AMD motor?
That motor is not gonna be a good choice for 23" tires. Its a speed motor, not a torque motor.
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11-07-2015, 03:42 PM | #10 | |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Series cart, 48volt, 7126 AMD motor?
Quote:
The casual reader may get confused trying to switch back and forth between the two. At 35 MPH on 21" tires with 12.44:1 gears, your motor is spinning at nearly 7,000 RPM and the max recommended RPM for most cart motors is in the 6,000 to 6,500 RPM range. I see you list the tire size as 22" in your signature block, if so, at 35 MPH the the motor is still spinning at about 6,650 RPM, so you are pushing the motor's RPM envelope in either case. What are you looking for in a new motor? More Speed. More Torque. Not slowing down as much going uphill. --------------- BTW: You list a DCS400PDS controller on your signature block, I'm pretty sure you mean DCX400PDS, |
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