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Old 05-25-2013, 03:11 PM   #1
seaotter
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Default Coil

Switching from 6 v to 12 v I have been told you need to get eiother a 12v coil with a built in resistor or a new coil and add a ballast resistor or just add a ballast resistor. My thought is all that is necessary is to just add a ballast resistor what say you?
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Old 05-25-2013, 03:16 PM   #2
Reds34
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Default Re: Coil

Ballast resistor. Check out Bubba's post on coil help, very informative.

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Old 05-25-2013, 04:08 PM   #3
Purdy Swoft
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Default Re: Coil

Quote:
Originally Posted by seaotter View Post
Switching from 6 v to 12 v I have been told you need to get eiother a 12v coil with a built in resistor or a new coil and add a ballast resistor or just add a ballast resistor. My thought is all that is necessary is to just add a ballast resistor what say you?
You can use your present coil but will have to use a resistor. I used a new 3.0 OHM coil with my 12 volt conversion. The 3.0 OHM coil is internally resisted and will need no external resistor.
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Old 05-25-2013, 08:06 PM   #4
Jim/GA
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I agree with Purdy. Any of the 3 options you list will work. I used a NAPA IC-14 coil for my 12 volt car, no resistor.

If you also go to negative ground, you need to swap the wires that hook up to the posts on the coil.
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