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Unread 04-22-2010, 02:50 PM   #1
Cuz
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Default More Power?

Got my new EMP motor but found out now that my batteries are shot so I have no clue how it performs yet.. Its a 36v 1984 5 sol resistor cart with newer DS body, 7" lift and 24" tires... Can I upgrade to 8v batteries and get even more power (36v to 48v)? Will this damage my solanoids or resistors in any way?

Since I need new batteries, I'm just wondering if I should upgrade


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Unread 04-22-2010, 04:57 PM   #2
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Default Re: More Power?

To try and use the STOCK solenoids and resisters is really a waste of time as they wont stand up to voltage increase except for a very short time. THIS IS NOT TO SAY IT CANNOT BE DONE BUT??
If I am correct on a older cart like yours you have to change over to a solid state controller and a PB6 pedal speed control, and 48 volt solenoid, along with a proper 48 volt charger.
As you can see to do it correctly will be a large sum of money. Many cart owners switch to later model carts 95 up already with modern updates.
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Unread 04-22-2010, 05:36 PM   #3
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Default Re: More Power?

Quote:
Originally Posted by OLD MEC View Post
To try and use the STOCK solenoids and resisters is really a waste of time as they wont stand up to voltage increase except for a very short time. THIS IS NOT TO SAY IT CANNOT BE DONE BUT??
If I am correct on a older cart like yours you have to change over to a solid state controller and a PB6 pedal speed control, and 48 volt solenoid, along with a proper 48 volt charger.
As you can see to do it correctly will be a large sum of money. Many cart owners switch to later model carts 95 up already with modern updates.
Yeah, I learned the hard way about trying to upgrade an older cart.. I already have a ton of cash into it and still need to convert to a rack & pinion steering assembly just so I can turn the 24x12x10 tires.. Here's a before and after picture:


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Unread 04-22-2010, 06:26 PM   #4
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Default Re: More Power?

nice build thus far though! i know its been a pain in the rear but looks awesome!
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Unread 04-23-2010, 07:32 AM   #5
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Default Re: More Power?

I have an 87 CC with the same set up. I have new 6 volt batteries with 4g cables. It runs right at 20mph on flat ground and has more torque than you will ever need. I have considered some of the same, however I think you will be happy with the battery and cable upgrade. My 2 cents. BTW I have 6" of lift and 22" tires/12" rims. I use the cart around the neighborhood and in the woods.
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Unread 04-23-2010, 09:06 AM   #6
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Default Re: More Power?

I say you have gone this far and she looks good ....... may as well go the distance and convert to 48v.....
THen you will have the real deal ..... I still have a complete R&P set up.
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Unread 04-23-2010, 09:15 AM   #7
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Default Re: More Power?

Scotty, if the 36 to 48 conversion is complete what amp controller would you recomend? 400 or 500? Also, how much would I gain... Torque/speed and will this shorten the life expectancy of my 23 year old motor. I would like a little more speed on long grades and the smoother acceleration, just not sure if it is worth the money.
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Unread 04-23-2010, 09:44 AM   #8
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Default Re: More Power?

It is worth the $ IMO. Noticeably more torque and speed. 25-30% more. I have done them with as little as 300a and as much as 650a. 400a is about all you need unless you want extreme tire size, etc. I do not know of any motor life shortening results? I suppose working it harder and faster could use it up faster? I dunno, never had a problem with that? Good Luck.
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Unread 04-23-2010, 02:10 PM   #9
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Default Re: More Power?

After viewing the photo's I would go ahead and finish off your OUTSTANDING CART.
Best of luck with finishing a wonderful restoration and upgrade. Keep us posted.
Look to SCOTTYB's posts for info on conversion.
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