Hey all, trying to figure out what I’m doing wrong with my alternator on my Hemi swapped Challenger. I used the old style external regulator and wired my exciter to it and one of the two wires coming from the plug on the alternator. 12 volts when the key is on. Then I wired the output to the battery, but it will not charge while running. Is there something about the new alternators I’m missing? I have a good ground at the regulator. I used the diagram attached in the pictures. Thanks!
Pre-Eagle or Eagle? The 08 older alternators will work. The Eagle alternators won't work that way. They are controlled Waaaay different than the early ones. They are both regulated through the PCM, but, the early ones you can control via the old regulator. Bouchillon has a write up on their site.
You are going to have to send a link because I see nothing over there. I was under the impression that the newer Magnum/ hemi alternators were still isolated field just like 70/ later Mopar back in the day
ALTERNATOR ONE WIRE 5.7 L/6.1 L 180 AMP - Bouchillon Performance Engineering I have used and wired the pre-eagle stuff myself. Works just like the old stuff. Tried wiring the Eagle stuff the same way, alternator was at full charge all the time. Like, when you tried to come off idle, the belt would SCREAM! Even idle speed would pick up 300 rpm when unplugging the regulator.
Pre Eagle. It’s a 2006. I put a ground to the green field wire and the alternator started charging, so I’m thinking it’s a bad regulator now.
Yes it’s got a good ground. Even ran a jumper wire straight from the negative battery post to ground it and nothing changed.
Ended up being a bad voltage regulator out of the box. Tried another one I knew worked, and it’s been charging ever since. Thanks all.
Could it be your 05 Alt. came from a different vehicle? At this point in time with things changing so rapidly who knows what works and what doesn't work.
