07-12-2021, 06:13 PM | #1 |
Getting Wild
Join Date: Jun 2015
Location: NE Ohio
Posts: 127
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HEI conversion questions
So I think I'm gonna do the HEI conversion on my 91 par car in a few weeks. I converted it over to points from the electronic stuff a few years ago because that box was expensive and hard to find. I've already bought most of the materials a long time ago. I've just been to much of a sissy to try it...lol...I THINK the only thing I need to buy is the module at this point. I think its time to make the plunge.
Now that its been on here a while I assume there's been quite a few people that have done it. How do you like it? What kind of maintenance is required on it? What exactly are the advantages/disadvantages? Would you do it again? |
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07-13-2021, 12:13 PM | #2 |
Gone Wild
Join Date: May 2011
Location: Pittsburgh
Posts: 2,941
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Re: HEI conversion questions
I have this conversion on two of my carts, both on 1985 Columbia carts. I have had no problems with the conversion on either once since the initial set up was complete. What I mean is that it took a couple of attempts to figure out exactly how big of an external resistor to add into the ignition circuit. Too much resistance means no spark and too little resistance means a burnt module. The modules are cheap though so it was no big deal.
I have had this in place for 5 years or so on the first cart and it is running just as good as day one (knocking on wood). |
07-13-2021, 03:25 PM | #3 | |
Not Yet Wild
Join Date: Apr 2021
Posts: 67
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Re: HEI conversion questions
Quote:
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07-14-2021, 05:14 AM | #4 |
Getting Wild
Join Date: Jun 2015
Location: NE Ohio
Posts: 127
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Re: HEI conversion questions
I jjst got a new coil and my meter reads 4 ohms on the posts for resistance. I think I may have figured out my other issue. I jjst have to test it tonight. As long as everything is good I think I may start on the HEI upgrade. I just have to figure out which module to get. I think I have all the other parts
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07-14-2021, 07:18 AM | #5 |
Getting Wild
Join Date: Jun 2015
Location: NE Ohio
Posts: 127
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Re: HEI conversion questions
With a 4 ohm coil how do I know what resister to use?
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07-14-2021, 08:30 AM | #6 |
Gone Wild
Join Date: May 2011
Location: Pittsburgh
Posts: 2,941
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Re: HEI conversion questions
It can be both. If I am remembering correctly, there is a 3.7 ohm resistor on the circuit board. That is somewhat standard and may not be enough. On both of my carts on which this conversion was done it wasn't enough. I could by the brightness of the spark. It looked like lighting. I had a 2.5 ohm resistor coil in the cart already so it was good to go. I added a 1.6 ohm ballast resistor in the cart's ignition circuit and that kicked things back to where spark at least looked normal.
For giggles, I had a 4 ohm resistor laying around that I added in place of the 1.6 one. It shut off spark completely which is actually a good thing as I know I am in the right ballpark with the 1.6. Understand, generators don't all put out the same amount of current so knowing precisely how much resistance is needed from a cart to cart basis isn't possible. |
07-14-2021, 08:34 AM | #7 |
Gone Wild
Join Date: May 2011
Location: Pittsburgh
Posts: 2,941
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Re: HEI conversion questions
Check out my previous post here as it speaks to my experience.
4 ohms is a lot in a coil. You might be good as is. I would hook everything up and see what you have. If your spark looks to be a bit too much then you can choke it back with a ballast. Regarding what HEI to get, I wouldn't go crazy with it. Those were made for cars. Obviously, golf carts would be much lighter use. Then again, China stuff it what it is so who knows. I tend to go middle of the road with things. |
07-14-2021, 09:07 AM | #8 |
Getting Wild
Join Date: Jun 2015
Location: NE Ohio
Posts: 127
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Re: HEI conversion questions
A module out of a mid 70's Chevy truck work?
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07-14-2021, 01:34 PM | #9 |
Getting Wild
Join Date: Jun 2015
Location: NE Ohio
Posts: 127
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Re: HEI conversion questions
What would you suggest for a module?
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07-14-2021, 02:33 PM | #10 |
Gone Wild
Join Date: May 2011
Location: Pittsburgh
Posts: 2,941
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Re: HEI conversion questions
To be honest, I just went on Amazon and searched for HEI module. You'll see quite a few there for as cheap as $10 and for as much as $80.
As long as it looks like this it'll work. Obviously, cheaper isn't often better but I wouldn't spend $80 on an HEI for a golf cart either. |
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