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Old 07-05-2009, 02:43 PM
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I REALLY REALLY need some help!

I have a 1971 camaro that i put a 99 vortec motor in. I used a 1988,1992
serp bracket setup from a trans am so I could run only one belt. My biggest
problem is I need help with the alt. I hang out at NastyZ28 forum cause when it
comes to camaros, the answers are always there.

This is where I have to step outside the box for help. here is the thread
incase you want to see whats up. http://www.nastyz28.com/forum/showthread.php?t=157670

I could only use the CS130 alt because of the bracket. Not sure what the
original is for a 71 model, but not the same type.
you can see i have 2 small wires from the alt pigtail.



then I have a blue and tan wire that comes from the small tape
like harness. These are the original color wires. only someone
cut the original alt connector for some reason and put another
pigtail with different color wires.



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Old 07-05-2009, 02:45 PM
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then I traced the wiring to the core support to make sure my
wiring was not hacked.

this is from driver side with battery removed



pass side by the little black box.



I would like to figure this out without having a one wire setup.
I know it can be done, just need to know how. Please help.
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Old 07-05-2009, 02:48 PM
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And I know where the thick red wire goes LOL

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Old 07-05-2009, 03:10 PM
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If you do a search for cs130 on here you should be able to find the info you need. The cs 130 has 4 connections but I believe you only need 2. That car originally had a 10si most likely. Mad electrical should also have the info you are looking for.
There are also conversion harnesses available for around 15 bucks. Dod a google search for 10si to cs130 and you will get many hits
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Old 07-05-2009, 03:28 PM
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From Hot Rod mag (sorry, I have the magazine, not a link):

"The swap is incredibly easy. M&H Electric Fabricators makes a slick conversion kit that adapts an SI- or CS-style alternator to early Camaros, Chevelles, and all other early external-regulator GM cars and trucks to an internal regulator alternator. On the alternator side, there is an adapter that adapts between the original harness connector and the new alternator with no cutting required. Then, you merely unplug the four-wire harness that connects to the external voltage regulator located next to the radiator and connect the M&H plug. This allows you to eliminate the regulator altogether. Internally, this plug connects the blue field wire to the brown wire in the harness that is used as the energizer wire when the key is turned to "on."

There are actually three different GM alternators you can use to do this conversion. We're assuming you're using the most common, '69-'84 SI internally regulated alternator that is identifiable by the multiple ribs on the rear half of the alternator case. The second type is the GM CS alternator with the smaller, more compact design that was used in GM cars and trucks from '84 to '99. M&H offers bolt-in kits to convert each of these two alternators for your '69 Camaro. The SI alternator kit is PN 27555, and the CS alternator kit is PN 37787, and both are priced at an affordable $19.

If you have not chosen an alternator yet, the later-model CS alternators offer more output at lower engine speeds, which may be an advantage if your Camaro is equipped with any combination of electric cooling fans, electric fuel pump, or a high-output stereo that pulls lots of amps. The total output may be similar to the older alternators, but the newer models produce a greater percentage of their output at idle speeds, where you need them the most.

Here's another tip. Once the alternator is connected and working, use a voltmeter to check voltage output at the back of the alternator at idle. Let's say it reads 14.5 volts. Now check the voltage at the battery. If the reading is 13.9 volts or fewer, there is a significant voltage drop in the output circuit somewhere between the alternator and the battery. Start with the small wire that runs from the positive terminal on the battery to the junction block on the radiator-core support. This is usually the culprit. The spec of 0.5-volt drop is acceptable for this circuit." END
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Old 07-05-2009, 05:53 PM
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OK THANKS, This is who you are talking about rite?

http://www.wiringharness.com/
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Old 07-05-2009, 10:10 PM
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Quote:
Originally Posted by QUAKE_WARS
OK THANKS, This is who you are talking about rite?

http://www.wiringharness.com/
That's the company, right.
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Old 07-06-2009, 08:28 PM
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Quote:
Originally Posted by cobalt327
That's the company, right.
THANK YOU SO MUCH!!!!!! thats what i needed.
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