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Old 07-16-2014, 01:56 PM
Luce Luce is offline
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Join Date: Aug 2010
Cobra Make, Engine: Lone Star with IRS, 427W with megasquirt, T56 magnum
Posts: 309
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If you don't use the light, install it under the dash. When the engine isn't running, the alternator grounds it's side of the light. If you wired it direct to hot, you'll burn something up. If the light REALLY offends you, use a 50 ohm resistor.

The yellow wire can be wired directly to the output terminal but only if you run 6ga wire all the way to the battery. That wire senses the actual charge voltage. If your wire and fusable link is a little long or light, there will be a voltage drop. This sense wire allows the alternator to put out a little more voltage to compensate for the voltage drop fromt he alternator to the battery.

What I did to clean things up was run my output wire directly to the starter. If you're running the old school starter with the solenoid on the fenderwell instead of the solenoid integral to the starter, you'll can't do that. If you have a modern gear reduction starter with the battery going directly to it, it's a perfect place to put the juice to.
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