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Topic: SI to CS Alt conv. wiring?

in Forum: C3 Electrical

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SI to CS Alt conv. wiring?

Posted: 11/5/08 7:12pm Message 1 of 6
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Sarge81
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WEST SENECA, NY - USA
Joined: 12/3/2001
Posts: 2379
Vette(s): 1981 Blue Ice Met. w/pearl ghost flames TKO500 5speed. LS1 Swap 3.45 Dana 44.

Ok electrical guru's...I have a question on converting a 2 wire SI alternator to a new style 4 wire CS alternator.

I'm installing a GM serpentine kit on a friends '80 vette. (Which I'll never do again)
 
 In the kit is a new CS alternator and a 4 wire plug in connector/pigtail.
All the wires on the pigtail are color coded in White.
There are no instruction in the kit for wiring. Wits%20End
 
The alternator connector on the vette is a 2 wire plug in connector. Wires are Red & White.
 
So what wires do I use and which don't I use? Or is there a simple plug in adaptor. I just don't want to fry anything.
 
Thanks in advance.
 




GEN III 5.7L "LS6" Engine swap
TKO500 5 spd.
3.54 Dana 44
'69 "N11" Sidepipes
Borgeson Steering Box
Born 8/1981
Sequence #3975




Click here to see more pics of my Vette on CarDomain.


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SI to CS Alt conv. wiring?

Posted: 11/5/08 8:31pm Message 2 of 6
acplus
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Canada
Joined: 6/23/2008
Posts: 558
Vette(s): 1972, 1980

SI to CS Alt conv. wiring?

Posted: 11/6/08 7:29am Message 3 of 6
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Adams' Apple
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
[QUOTE=Sarge81]All the wires on the pigtail are color coded in White. [/QUOTE]

Any new pigtail, or wiring connector "repair kit" you get these days from GM has ALL white wires! Sure makes it hard to repair lectrical stuff anymore...

Looks like John got ya fixed up, tho.


Joel Adams
C3VR Lifetime Member #56    
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(click for Texas-sized view!)             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

SI to CS Alt conv. wiring?

Posted: 11/6/08 7:16pm Message 4 of 6
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kstyer
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CUYAHOGA FALLS, OH - USA
Joined: 12/2/2003
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Vette(s): 1975 C3 Red, T-Tops, Black Interior. All I need is time and money! Getting there!
I would have liked to chime in on this one, but that covers it all.  Thumbs%20Up


SI to CS Alt conv. wiring?

Posted: 11/21/08 11:58am Message 5 of 6
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Sarge81
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WEST SENECA, NY - USA
Joined: 12/3/2001
Posts: 2379
Vette(s): 1981 Blue Ice Met. w/pearl ghost flames TKO500 5speed. LS1 Swap 3.45 Dana 44.

That link did help out quite a bit. Thanks.

I had to use a harness/connector from NAPA with a resistor built in. NAPA pn: EC82. The ohm's reading between the pos. batt. cable and the brown wire at the alternator was to low. So this direct plug in harness took care of the problem.




GEN III 5.7L "LS6" Engine swap
TKO500 5 spd.
3.54 Dana 44
'69 "N11" Sidepipes
Borgeson Steering Box
Born 8/1981
Sequence #3975




Click here to see more pics of my Vette on CarDomain.


Lifetime Member #26

SI to CS Alt conv. wiring?

Posted: 11/21/08 4:50pm Message 6 of 6
acplus
Former Member
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Canada
Joined: 6/23/2008
Posts: 558
Vette(s): 1972, 1980
Good going
John



in Forum: C3 Electrical


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