Increase HP or Rear Gears???

1AZCart · 06-11-2009, 09:11 AM

I have a '91 2HP 36v EZGO limo my son and I are reconditioning this summer and I need to know if I change the motor from a 2hp to 6hp, do I need to change the controller? Or should I just go for a higher rear gear ratio and stay with the 2hp motor? This carts needs to go fast!!!

Thanks

buckmanmike · 06-11-2009, 04:42 PM

I would change the controller and upgrade to 48v first. If you need more then change out your motor.
You gave no specs on the 6hp motor, but if it doesn't turn higher rpms than stock you will gain no speed, just more torque.

GarageBuilt · 06-16-2009, 06:33 PM

Quote:

Originally Posted by 1AZCart

I have a '91 2HP 36v EZGO limo my son and I are reconditioning this summer and I need to know if I change the motor from a 2hp to 6hp, do I need to change the controller? Or should I just go for a higher rear gear ratio and stay with the 2hp motor? This carts needs to go fast!!!

Thanks

first you need torque. the torque will give rpm's and then the rpm's will give you power to pull that tall gear.

with out the torque your motor cant pull the taller gear's.

1AZCart · 06-16-2009, 09:47 PM

I now need to back up and figure why my cart no longer runs. Thanks for the replys but it seems I am back at ground zero. I lost all power!!!! I reviewed the threads within the electrical postings and found my solenoid may have been wired incorrectly be previous owner. Not sure. My batteries test out at 36.5v and I don't know how to test the solenoid. I assume it tests out a 0v then gains as the accelorator is opened up???? HELP

scottyb · 06-16-2009, 09:58 PM

36.5 is an empty battery pack. That reading is 50% capacity. Right where the manufacture reccommends recharging... The solenoid will show full voltage. What speed control system do you have? Resistor or solid state controler?

1AZCart · 06-17-2009, 10:14 AM

Solid state system. Typical with the marathon series cart from early 90s.

1AZCart · 06-17-2009, 10:33 AM

Let me tell you I assume it is a solid state since my last marathon was. Here are some pictures for you to look over.

1AZCart · 06-17-2009, 02:48 PM

Got the cart going again now only one tire rotates when the gas peddal is down. Broken axel???

oxfordlawn · 06-17-2009, 03:06 PM

Thats one hell of a wheelie

Actually if the cart is on jackstands, that is OK, that is caused by gearing in the differential. See if both wheels spin freely by hand, you may have rear brakes out of adjustment...In the perfect world both wheels should spin, but if the brake on one side is too tight, just the looser wheel will spin

06-11-2009, 09:11 AM	#1
1AZCart Not Yet Wild Join Date: Apr 2009 Posts: 12	Increase HP or Rear Gears??? I have a '91 2HP 36v EZGO limo my son and I are reconditioning this summer and I need to know if I change the motor from a 2hp to 6hp, do I need to change the controller? Or should I just go for a higher rear gear ratio and stay with the 2hp motor? This carts needs to go fast!!! Thanks
1AZCart Not Yet Wild Join Date: Apr 2009 Posts: 12

06-11-2009, 04:42 PM	#2
buckmanmike Gone Wild Join Date: Oct 2007 Location: Snellville, Ga. Posts: 1,304	Re: Increase HP or Rear Gears??? I would change the controller and upgrade to 48v first. If you need more then change out your motor. You gave no specs on the 6hp motor, but if it doesn't turn higher rpms than stock you will gain no speed, just more torque.

06-16-2009, 09:47 PM	#4
1AZCart Not Yet Wild Join Date: Apr 2009 Posts: 12	Re: Increase HP or Rear Gears??? I now need to back up and figure why my cart no longer runs. Thanks for the replys but it seems I am back at ground zero. I lost all power!!!! I reviewed the threads within the electrical postings and found my solenoid may have been wired incorrectly be previous owner. Not sure. My batteries test out at 36.5v and I don't know how to test the solenoid. I assume it tests out a 0v then gains as the accelorator is opened up???? HELP
1AZCart Not Yet Wild Join Date: Apr 2009 Posts: 12

06-16-2009, 09:58 PM	#5
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,419	Re: Increase HP or Rear Gears??? 36.5 is an empty battery pack. That reading is 50% capacity. Right where the manufacture reccommends recharging... The solenoid will show full voltage. What speed control system do you have? Resistor or solid state controler?

06-17-2009, 10:14 AM	#6
1AZCart Not Yet Wild Join Date: Apr 2009 Posts: 12	Re: Increase HP or Rear Gears??? Solid state system. Typical with the marathon series cart from early 90s.
1AZCart Not Yet Wild Join Date: Apr 2009 Posts: 12

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06-17-2009, 02:48 PM	#8
1AZCart Not Yet Wild Join Date: Apr 2009 Posts: 12	Re: Increase HP or Rear Gears??? Got the cart going again now only one tire rotates when the gas peddal is down. Broken axel???
1AZCart Not Yet Wild Join Date: Apr 2009 Posts: 12

06-17-2009, 03:06 PM	#9
oxfordlawn just hangin' around Join Date: Jan 2009 Location: Oxford Flo-Rida Posts: 1,102	Re: Increase HP or Rear Gears??? Thats one hell of a wheelie Actually if the cart is on jackstands, that is OK, that is caused by gearing in the differential. See if both wheels spin freely by hand, you may have rear brakes out of adjustment...In the perfect world both wheels should spin, but if the brake on one side is too tight, just the looser wheel will spin

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