Guys I put a low mount alternator kit with a denso alternator on my 68 dart. How do i wire it? 68 dart, 543 stroker, new stock wiring harness, MSD ignition, trunk mount battery. The denso is a 3 wire unit, I got the adaptor plug, it has 3 pig tails. Thanks.

I'd start by using the instruction sheet that should have come with the denso..unless you sourced it used and don't have it for some other reason. All of the newer denso alts I've seen, including the one I put on my 68, have a main large stud for pos 12v and then spots for 2 more wires. those are for the field wires coming from voltage regulator. I say spots for those other 2 wires because depending on year, some have just 2 studs, others have a socket that you need a special plug for. accomplishes the same thing: connecting the 2 field wires to the alt.

This is all speculation based on assumption here. What model denso? do you have a pic of the back of it? There's more to it as far as upgrading wiring if the denso is high amp... also depends on whether you are keeping the wiring in the car stock 68 single field or later dual field....that changed in 69 or 70, I can't remember.

I bought the alternator and low mount kit from mancini. Not sure which model it is, it is a 60amp reman unit. No instruction sheet. There is 1 big stud terminal. It has a rececced plug which requires a plug in adaptor that has 3 pig tails, not 2. The wiring is stock replacement M&H harness. I have no issues with cutting the new harness, this is a street legal drag car. Thanks again.

I went through this a few months ago. There are some limited instructions on this web site for that pigtail connector.

http://www.hughesengines.com/Index/produ...mp;partid=27112

Also, if you call Mancini, I think they will email you a pdf of more complete instructions from AR Engineering. Also, the instructions are available directly from AR Engineering.

I don't have my reference materials with me, but as best I recall run the charging wire from the big stud on the alternator to the starter relay. You should use a fuse or fusible link. I think I used a 10 or 8 gauge wire with a 14 or 12 gauge fusible link.

Run the green wire from the pigtail to the place on the MH harness where the input to the voltage reg used to be. See the diagram.

http://www.mymopar.com/downloads/1969/69BelvedereGTXSatelliteRoadRunnerB.JPG

The alternator has an internal regulator so you don't use a voltage regulator.

Run the blue wire from the pigtail to the starter relay. That I think is the sensing wire that tells the alternator how much juice to provide (and does away with the dim headlight issues).

Don't use the red wire on the pigtail.