Re: alternator, 3 wire to 1 wire
A 3 wire senses regulator voltage at the battery terminal which compensates for any charge lead loss.<br />A one wire alternator senses regulated voltage at the output stud. What you get at the battery is always less than the regulator setting, especially at high charging rates.<br /><br />A 3 wire has a low "cut-in" rpm which in some 1 wire units requires the engine to be reved before charging starts.<br /><br />And of course, you lose the indicator light.....<br /><br />The only benefit to a 1 wire is that its easy to wire in, and an ignition switch is not required....

<br />If you go to the one wire alternator, be sure the charge lead is big enough and you won't have any problems....