Painless wire harness install (MORE PROGRESS)

67Dart273 said
Yes, and this is your only "switched ignition" wire. So it must also branch off to the gauges power, the regulator "I" terminal (blue), and one of the field connections on the regulator, and anything else that you want on only with ignition. On mine, I used that wire to fire a relay, and then the loads run off the relay. Not necessary unless you have quite a bit of load. The MSD small red is a very small load, IE it switches the MSD box and uses either a mechanical relay or solid state switch.

It is EXTREMELY important that the regulator ground and the regulator "IGN" (blue) see exact battery voltage, or the charge voltage will be added to the voltage offset.

That is, if say, the ground at the regulator is .2V above battery, and the regulator IGN terminal sees a .2V drop from the battery positive, that total of .4V will be added to whatever the regulator setpoint is.

this has me a bit confused. i was under the impression that the voltage regulator was meant to meter the output voltage of the alternator in order to not create too much voltage going back? the wiring instructions from painless show me running the white wire (#914 Alternator Exciter) to the field terminal on the distributor and then running a wire from that same field terminal and thru the voltage regulator and then to the other field terminal on the alternator. I thought that the regulator was isolated to the alternator field terminals?

i was planning on having a ground wire run from the voltage regulator body to the negative battery terminal junction box. would that be sufficient? would you also recommend that i run a larger than normal wire from the alternator to the regulator in order to limit the resistance?

sorry for all the questions and lengthily responses but you have so much information to share and i have learned alot from chatting with you.