Quote:
Originally Posted by Painter
You guys are making this way to hard. Simply put a jumper wire between the battery post on the starter and the start terminal. Now when the “slave solinoid” is triggered it sends voltage to both terminals! Wow! How simple can you get. No small wire even going to the starter to get burned by the headers. Battery cable going to the starter is only hot when you try to start. Takes very little amperage to trip slave, and the solinoid on the starter is trip by battery voltage and amerage. Win-win situation.
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I have friends at the track who rebuild starters and alternators for a living and they say this shortcut will shorten the life of the starter. When you hit the switch with a jumper in the mix you send the 12 volt signal from the battery that is intended to spin the starter (up to 1000 amps) to the starter solenoid as well. That only requires 12 volts 5 to10 amps to engage the gearing and energize the motor. It will burn out the windings in the solenoid. It's just an electromagnet and a pushrod. A starter mounted solenoid has studs of different sizes for a reason. Wire it like the manufacturer intended and it will last longer.