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Old 11-01-2023, 04:21 PM   #1
jtgriesman
Not Yet Wild
E-Z-GO
 
Join Date: May 2021
Location: Charleston, South Carolina
Posts: 8
Default EZGO TXT48 48-72v or gear change

Hey y’all, the important stuff.
2017 stretched EZGO TXT48, D&D 170-513-0001B (ES-9B-50), 4 12v AGM Hawkers, Navitas tsx 3.0 600amp controller, heavy duty solenoid, 28” tires and 2gauge wires.

Motor is a bast with torque no doubt about it. But I have the cart registered as an LSV and can take it all over our little downtown. Max rpm on 48v set up is 3150, motor can handle 72v. I can fit 2 more hawkers, strategically, and the place down the road refurbishes and sells them for $70, with 3 year guarantee.

2 batteries $140, alltrax 72v controller (maybe Navitas) $954, charger maybe $600.
Kv=rpm/V. Kv=3140/48 Kv=65.41
65.41kvX72v= 4710rpm
4710rpm with 12.44 gears = 32mph

Regear from 12.44 to 8.1 $600.
12.44:1 and 28” tires= 21mph at 3150rpm
8.1:1 and 28” tires= 33mph

I’ve got 900 in the motor, bout 900 in the controller. Could probably get 500 for the controller to offset if I go 72v. 72v $1700
8.1 gears $600.

Any smarter guys wanna weigh in? All math is from researching and trying to understand electric motors
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