<-- i have one like this what is with the black conneter in this pic on the back of the alterator? do i need it? i swaped to a carb setup and gutted most my wires, can i jsut run a single wire to the BAT with out runing the other wires beslides ground, what is that plug for on the back of the alternater anyways? any help would be great thanks i looked in my repair book and didnt find anything explaning what that other connation was for

 

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Your a jerk! i wouldnt have posted if i found it on a search its to complcated of a qustion to search with and i cant find the anser for here nor on the web so this is why i posted
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I think the red wire controls the voltage regulator and brown goes to the voltage gauge and black which mine doesn't have so not sure why your plug has would be more then likely a ground. The lug on the back of the alternator is obviously the charging wire .... Hope that helps.

 

If I remember correctly one wires sends a signal to the voltage gauge in the car. I know the brown wire runs to the fan fuse so the alternator can increase its output under the additional load and the heavier of the 3 runs somewhere behind the dash to the main hot bus if I remember correctly. It's been a while since I looked at my GM electrical manual

 

so when purchasing an alternator from like summit or somewhere and they say whether or not the unit is one wire capable... would you need it to say yes or no? for example

this one isnt
http://store.summitracing.com/partde...5&autoview=sku

and this one is
http://store.summitracing.com/partde...5&autoview=sku

which one would you buy? if you have the plug and battery wire then do you need the one that isnt one wire capable?

 

Get the one that is one wire capable, and run it just to the battery, good to go

 

i just looked and the plug on mine runs through the injector set up so i dont think i can not have it. so does one wire mean then that there is no plug on the back just a battery wire?

 

Correct. Mostly.
Some alternator models still have the two prong plug, but its plugged off with a rubber insert.

 

so then i will just get the one that isnt to make sure the plug is there. thanks for you help

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