|
Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
|
Thread Tools | Display Modes |
10-11-2012, 01:01 PM | #11 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
|
Re: Ezgo rear end gear Question!!
Mathematically, if you were getting 21MPH on 18" tall tires, you ought to be getting a bit over 25MPH with 22" tires.
The is no speed governor that I know of, unless it is in the programming of the 500A controller. The bigger tires are going to draw more amps, so it is possible you are hitting an amp limit if the controller's max amps is turned down some. I don't know, just a possibility. Or it could be some resistance in a cable, contacts or connection. Do you have a DVM battery meter? If so, connect a handheld DVM between M- and B+ terminals on controller. When flat out, the voltage between M-and B+ on controller should equal the battery pack voltage, or at least withing a volt or two of it. If it isn't, there is a voltage drop across something in the high current circuit that is stealing voltage from the motor, which robs the motor of amps. Also, feel the cables and stuff. if any are getting hot, that is a sign of excessive resistance. |
Today | |
Sponsored Links
__________________
This advertising will not be shown in this way to registered members. Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum |
|
10-12-2012, 04:20 PM | #12 |
Not Yet Wild
Join Date: Dec 2011
Posts: 51
|
Re: Ezgo rear end gear Question!!
For another update I have called Schafer Drive Lines, which makes the rear ends for Ezgo carts now, they purchased the product from Dana corp. I have spoke to them and they have advised me they make a 17.1 ratio gears that will fit in my Ezgo txt 2007 model. I have ordered them and will be replacing my 12.44:1 gears soon and will let you know how it works out. If my figures are right and johnnieB can tell me this should give me a good torque jump with the 22" tires!!
|
10-13-2012, 09:52 AM | #13 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
|
Re: Ezgo rear end gear Question!!
According to my spreadsheet, if you were getting 21Mph on you 18" tires with the stock 12.44:1 differential, you ought to be getting close to 19MPH with 22" tires and a 17.1:1 differential, plus a 12% gain in torque.
|
10-13-2012, 10:32 AM | #14 |
Not Yet Wild
Join Date: Dec 2011
Posts: 51
|
Re: Ezgo rear end gear Question!!
That sounds great!!! Less speed and more power with the bigger tires!! I have went everywhere i wanted to go and even in muddy conditions!! All I plan on doing is trying to figure out while I'm replacing the gears is how to lock the drive line together to give positive traction!! If anyone has done that yet could give me some pointers would be great!!!!
|
10-13-2012, 10:45 AM | #15 |
Gone Wild
Join Date: Dec 2009
Location: Aiken, SC
Posts: 13,140
|
Re: Ezgo rear end gear Question!!
archer, I know they make posi kits in both factory and aftermarket. I just bought a replacement rear for my cart with the factory posi already in it. I need to pull it apart and check to make sure he didn't just weld it but we will see...
|
10-13-2012, 10:45 AM | #16 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
|
Re: Ezgo rear end gear Question!!
That is completely out of my comfort zone.
I'm into troubleshooting the electrical stuff and I do a little number crunching with tire sizes and gear ratios, but have seen the inside of a differential since I was a teenager, nearly 50 years ago. |
10-13-2012, 10:51 AM | #17 | |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
|
Re: Ezgo rear end gear Question!!
Quote:
Drive the cart in tight circles and you'll soon find out if the gears are welded. |
|
10-13-2012, 11:04 AM | #18 | |
Gone Wild
Join Date: Dec 2009
Location: Aiken, SC
Posts: 13,140
|
Re: Ezgo rear end gear Question!!
Quote:
As for the rear ends in these, they are pretty simple compaired to car. No shims or anything, they just pretty much bolt in.. |
|
10-13-2012, 11:15 AM | #19 |
Not Yet Wild
Join Date: Dec 2011
Posts: 51
|
Re: Ezgo rear end gear Question!!
So when i get these new gears and put them in i can find a posi kit that will go in my ezgo rear end right???? Now the posi kit your talking about if it spins different directions then it should turn very good and if i weld it then my turning will not be very good at all for hard surfaces, but shouldn't matter much for dirt surfaces right???
|
10-21-2012, 07:54 PM | #20 |
Not Yet Wild
Join Date: Oct 2012
Posts: 1
|
Re: Ezgo rear end gear Question!!
You ordered the Gears directly from Schafer Gear?
|
|
Thread Tools | |
Display Modes | |
|
Similar Threads | ||||
Thread | Forum | |||
ezgo marathon back gear box? question i describe in depth not sure if its gear box | Gas EZGO | |||
EZGO rear axle and hub question - Scotty and Others? | Gas EZGO | |||
Rear gear box question | Gas EZGO | |||
rear end gear lube question | Electric Yamaha | |||
95 EZGO ELECTRIC rear diff question | Electric EZGO |