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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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01-22-2015, 10:05 PM | #11 |
Getting Wild
Join Date: Jun 2013
Location: aiken, sc
Posts: 110
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Re: What's your thoughts on the plum quick bandit upgrade?
well I figure the motor is supposed to gain 20%. so that coupled with the gear swap I'm hoping to have about the same speed as now but with alot more torque from motor and gears combined.
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01-25-2015, 09:00 AM | #12 | |
Getting Wild
Join Date: Jun 2013
Location: aiken, sc
Posts: 110
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Re: What's your thoughts on the plum quick bandit upgrade?
Quote:
stock motor + 12.44 gears + 23" tires versus 15% motor + 14.76 gears + 23" tires |
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01-25-2015, 10:50 AM | #13 | |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: What's your thoughts on the plum quick bandit upgrade?
Quote:
Upping the tire height to 23" increases the speed to 17.9 MPH @ 3254RPM (28% increase), but decreases torque by 22%. With 23" tires and 14.76:1 gears, the speed increases to 15.1 MPH (3257RPM) which is about an 8% increase, and the torque decrease is 7%. Since the source of torque the motor, changes in motor torque carry straight through the final drive ratio. So with 23" tires, a 15% increase in torque at the motor works out to a net loss of 7% with 12.44:1 gears and a net gain of 8% with 14.76:1 gears. The same is true with motor RPM. A 15% increase in motor RPM will theoretically produce 20.6 MPH with 12.44:1 gears and 23" tires and 17.4 MPH with 14.76gears and 23" tires. Of course, you won't see the theoretical speed numbers since there are more factors involved than just tire heights and gear ratios. IE: taller tires take more torque to turn, so the max motor RPM reached for a given voltage is lower with taller tires. Hope this helps. |
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01-25-2015, 01:17 PM | #14 |
Getting Wild
Join Date: Jun 2013
Location: aiken, sc
Posts: 110
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Re: What's your thoughts on the plum quick bandit upgrade?
thank you.
about what I expect. same to 1 mph loss and approximately 28-30 % torque ib increase from current setup. |
01-25-2015, 03:54 PM | #15 |
Gone Wild
Join Date: Dec 2009
Location: Aiken, SC
Posts: 13,188
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Re: What's your thoughts on the plum quick bandit upgrade?
I know I was pleased with Bandits I have purchased and I am about to get I think 3 more.. Maybe I should warn Robbie...
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01-25-2015, 04:14 PM | #16 | |
Getting Wild
Join Date: Jun 2013
Location: aiken, sc
Posts: 110
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Re: What's your thoughts on the plum quick bandit upgrade?
Quote:
let me know if you go I'd like to go with you and pitch in on fuel |
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01-26-2015, 07:11 AM | #17 |
Gone Wild
Join Date: Dec 2009
Location: Aiken, SC
Posts: 13,188
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Re: What's your thoughts on the plum quick bandit upgrade?
Not sure of the plan yet. Still working on details.. Will let you know.
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01-26-2015, 09:09 AM | #18 |
Getting Wild
Join Date: Aug 2014
Location: SC
Posts: 133
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Re: What's your thoughts on the plum quick bandit upgrade?
I have an EZGO shuttle 4. It’s a 36 volt motor running 48 volts through it. I was running 16 mph and had a decent amount of torque. After doing the Bandit upgrade, I’m over 21 mph and now the tires will spin for second before grabbing when going in reverse. Once I put in new batteries (these are 5 years old), should gain some top end speed. I’d recommend the upgrade for the price.
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