EZGO Series

skipsmith521 · 03-20-2016, 09:42 AM

Have a friend that has a series cart...

It is all stock. I know to get to 20 mph requires new controller, motor, and everything else...

If you want a few additional mph is there anything else that might increase it a little faster without needing everything?

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03-20-2016, 09:47 AM

larger tires

skipsmith521 · 03-20-2016, 10:08 AM

Can you put a new controller and selinoid in and get any speed increase on a series cart even if it is not 20 mph?

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gornoman · 03-20-2016, 10:24 AM

Quote:

Originally Posted by skipsmith521

Can you put a new controller and selinoid in and get any speed increase on a series cart even if it is not 20 mph?

Sent from my Nexus 6 using Tapatalk

Not on a series cart. Those items will simply make the system stronger from a torque aspect. Top end will not change.

skipsmith521 · 03-20-2016, 10:32 AM

So this leads to the larger tires...

Is there any approximate mph increase that can be expected by increasing tire size?

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270Handiman · 03-20-2016, 01:33 PM

Yes, JohnnieB has a spreadsheet for that very calculation.

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JohnnieB · 03-20-2016, 03:03 PM

Top speed for a TXT or Medalist series drive cart is 13-14 mph, so the first thing to do is verify the cart is reaching its normal top speed.

Bad high current cables, connections and contacts will hold the speed down as well as bad batteries, bad bearings and dragging brake shoes.

If the cart will go 14.0 MPH on stock height (18") tires:

It should do about 14.8 MPH on 19" tires, but will lose about 5% of the available torque.

It should do about 15.6 MPH on 20" tires, but will lose about 10% of the available torque.

You will have to lift the cart's frame and body off the axles to go taller than 20".

skipsmith521 · 03-20-2016, 05:04 PM

Thanks Johnnieb

Can you get to 16 or 17 on larger tires with lift kit?

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JohnnieB · 03-20-2016, 05:59 PM

Quote:

Originally Posted by skipsmith521

Thanks Johnnieb

Can you get to 16 or 17 on larger tires with lift kit?

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21" = 16.3 MPH & 14% Torque loss.
22" = 17.1 MPH & 18% Torque loss.
23" = 17.9 MPH & 22% Torque loss.

Due to the torque loss, the cart won't fully reach the mathematically calculated speeds listed.

With a stock controller, stock motor and 36V battery pack, the owner might not be very happy with the cart's performance with tires over 20" tall.

skipsmith521 · 03-20-2016, 10:21 PM

This cart is going to be a street cart on all flat streets...mainly for his kids.

I think if he had some way to increase 3 or 4 mph without going to alot of expense he would do it.

Are you saying increasing the tire size alone is not recommended or will it damage something else?

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03-20-2016, 09:42 AM	#1
skipsmith521 Gone Wild Join Date: Dec 2015 Location: Texas Posts: 526	EZGO Series Have a friend that has a series cart... It is all stock. I know to get to 20 mph requires new controller, motor, and everything else... If you want a few additional mph is there anything else that might increase it a little faster without needing everything? Sent from my Nexus 6 using Tapatalk

03-20-2016, 09:47 AM	#2
crash test dummy Guest Posts: n/a	Re: EZGO Series larger tires
crash test dummy Guest Posts: n/a

03-20-2016, 03:03 PM	#7
JohnnieB Techno-Nerd Join Date: Jun 2011 Location: West Virginia Posts: 19,654	Re: EZGO Series Top speed for a TXT or Medalist series drive cart is 13-14 mph, so the first thing to do is verify the cart is reaching its normal top speed. Bad high current cables, connections and contacts will hold the speed down as well as bad batteries, bad bearings and dragging brake shoes. If the cart will go 14.0 MPH on stock height (18") tires: It should do about 14.8 MPH on 19" tires, but will lose about 5% of the available torque. It should do about 15.6 MPH on 20" tires, but will lose about 10% of the available torque. You will have to lift the cart's frame and body off the axles to go taller than 20".

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03-20-2016, 10:08 AM	#3
skipsmith521 Gone Wild Join Date: Dec 2015 Location: Texas Posts: 526	Can you put a new controller and selinoid in and get any speed increase on a series cart even if it is not 20 mph? Sent from my Nexus 6 using Tapatalk

03-20-2016, 10:32 AM	#5
skipsmith521 Gone Wild Join Date: Dec 2015 Location: Texas Posts: 526	So this leads to the larger tires... Is there any approximate mph increase that can be expected by increasing tire size? Sent from my Nexus 6 using Tapatalk

03-20-2016, 01:33 PM	#6
270Handiman Gone Wild Join Date: Dec 2013 Location: SE Louisiana Posts: 257	Yes, JohnnieB has a spreadsheet for that very calculation. Sent from my SAMSUNG-SM-N910A using Tapatalk

03-20-2016, 05:04 PM	#8
skipsmith521 Gone Wild Join Date: Dec 2015 Location: Texas Posts: 526	Thanks Johnnieb Can you get to 16 or 17 on larger tires with lift kit? Sent from my Nexus 6 using Tapatalk

03-20-2016, 10:21 PM	#10
skipsmith521 Gone Wild Join Date: Dec 2015 Location: Texas Posts: 526	This cart is going to be a street cart on all flat streets...mainly for his kids. I think if he had some way to increase 3 or 4 mph without going to alot of expense he would do it. Are you saying increasing the tire size alone is not recommended or will it damage something else? Sent from my Nexus 6 using Tapatalk