Hi everyone...
A friend and I are building a 1970 Challenger with a 6.1 Hemi from a 2013 Ram. We are using a FAST XFI 2.0 computer, but it doesn't have any wires for the alternator. We've been told that there is no voltage regulator integrated in a 2013 Ram alternator. Over the internet, I've read that you can hook up an external voltage regulator and that's what we did. Basically, we ran an ignition wire to one of the terminals on the voltage regulator and to what seems to be a ''field'' terminal of the alternator (same wire). Than, we ran the second regulator wire to what seems to be the second ''field'' wire of the alternator. So, we hook up the alternator like a 1970 Chrysler alternator. There's only 3 wires to hook up on the alternator, the large positive cable (+) and the two ''field'' wires. It seems evident we have something hook up wrong because, we have constant 18-19 volts when the engine is running. We added a ground wire from the voltage regulator to the alternator body, but still have 18-19 volts. Tried another regulator; same problem. Even if we disconnect the voltage regulator, we still have 18-19 volts at the battery. And yes, my test meter is fine. Even the FAST program on the laptop says we have 18-19 volts and battery is getting hot and smells bad. Does anybody know how to wire a 2013 Ram alternator if we don't have the Ram computer? Thanks. Robert