03-19-2012, 07:02 PM | #1 |
Not Yet Wild
Join Date: Mar 2012
Location: Del Rio, TX
Posts: 17
|
RPM
I am not sure if this ha sbeen asked before... but does anyon know the rpm of an electric ezgo txt?
|
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 |
|
03-20-2012, 09:23 AM | #2 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
|
Re: RPM
I suspect you want to know what the RPM of the motor installed in a TXT at a given speed is.
When stopped the motor's RPM is zero. Other than that, it depends on the differential gear ratio and the diameter of the rear tires. Stock gear ratio in a TXT is usually 12.44:1 Stock tire diameter is about 18", but tire diameter varies greatly between manufactures and models of tires by the same manufacturer. For example, the mounted diameter of an 18X8.5-8.0 Carlisle Links tire, which is a common stock tire, is only 17.4", which is a 3% more motor revolutions per mile than an 18" tire. For a true 18" tire, the motor spins at 232.307 RPM per MPH. For a true 17.4" tire, the motor spins at 240.3176 RPM per MPH. For a true 23" tire, the motor spins at 181.8055 RPM per MPH. If the rear end ratio is other than 12.44:1, the above RPMs would be different. |
03-20-2012, 09:42 AM | #3 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,410
|
Re: RPM
2850-3200 depending upon the model
|
03-20-2012, 10:19 AM | #4 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
|
Re: RPM
That must be for Series motors.
What about the PDS system (Sepex motor)? Ezgo's published speeds for the freedom chip is 17-19 MPH. With 18" tires and a 12.44:1 gear ratio, that is 3,949 to 4,414 RPM respectively. |
03-20-2012, 05:24 PM | #5 |
Not Yet Wild
Join Date: Mar 2012
Location: Del Rio, TX
Posts: 17
|
Re: RPM
Thank you guys!
I do have another question though.... I do feel kind of pathetic for asking lol But how do i put the gear ratio into affect? I mean what exactly does the gear ratio mean? |
03-21-2012, 12:56 AM | #6 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
|
Re: RPM
It is always in effect.
The motor is connected directly to the the differential and if the the gear ratio of the gears installed in the differential is 12.44:1, the motor turns 12.44 revolutions for each revolution of the axles. The gear ratio can be changed, but it is a major mechanical undertaking, you have to pull the axles, physically disassemble the differential and replace the gears in it. |
03-21-2012, 04:45 PM | #7 | |
Not Yet Wild
Join Date: Mar 2012
Location: Del Rio, TX
Posts: 17
|
Re: RPM
Quote:
|
|
03-21-2012, 06:06 PM | #8 |
Stay thirsty my friends!
Join Date: Jan 2007
Location: Suburban Chicago
Posts: 24,286
|
Re: RPM
|
03-21-2012, 06:55 PM | #9 |
Not Yet Wild
Join Date: Mar 2012
Location: Del Rio, TX
Posts: 17
|
Re: RPM
|
03-26-2012, 01:45 PM | #10 |
Dum Spiro Spero
Join Date: Jan 2008
Location: Moncks Corner, SC
Posts: 732
|
Re: RPM
My 2 cents is I have a Honda Clone gx200 "Small Block" with a Tav2 10T and I have a 13T sprocket on my sparky axle. I'm up to about 15mph. The motor is not straining at all and the tav2 makes plenty of torque. I would like to get to 25-30 top speed. Not saying I will run it that way all the time, but its there for passing purposes.
|