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Ground wire on coil Ground wire on coil
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Kirkham Motorsports

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Old 11-28-2009, 08:31 AM
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Question Ground wire on coil
The metal bracket that my coil sits in is not grounded. I need to take a wire from this bracket to chassis ground. What gauge wire does this ground wire have to be? Thanks...

Mike
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Old 11-28-2009, 09:22 AM
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What type of ignition do you have? Some such as MSD have both wires hooked to the ignition box.
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Old 11-28-2009, 10:40 AM
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The ground (case) for the coil is only tied to the secondary winding (spark) side, so a 16 or 18ga wire would be fine. The majority of the resistance in the secondary circuit is the plug wires and plugs themselves, so you don't need a very large conductor (high voltage/low current).
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Old 11-28-2009, 12:39 PM
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I have the Crane Cams Fireball HI-6 Ignition and a Crane Cams Fireball LX-91 coil.
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