1 Wire Alternator
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Joined: Jun 2007
Posts: 57
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From: Buckhorn Ontario
1 Wire Alternator
I added twin electric fans for engine cooling and need to upgrade the alternator in my 69.
The currenrt alternator has a plug with two wires and a seperate black ground and a seperate red battery wire.
How do I install a 1 wire alternator and still have a functoning ampmeter, what do I do with all the wires?
The currenrt alternator has a plug with two wires and a seperate black ground and a seperate red battery wire.
How do I install a 1 wire alternator and still have a functoning ampmeter, what do I do with all the wires?
Safety Car
Joined: Oct 2007
Posts: 3,729
Likes: 267
From: Austin Texas
Corvette of the Year Winner 2017
2016 C3 of Year Finalist
I would not consider a 1 wire an upgrade.
I would suggest a high Amp Output 3 wire.
your electrical system will function better with a 3 wire.
and your amp meter will still work.
I would suggest a high Amp Output 3 wire.
your electrical system will function better with a 3 wire.
and your amp meter will still work.
Last edited by 69Vett; Aug 12, 2009 at 04:34 PM. Reason: Darn Spelling !
Melting Slicks
Joined: Jan 2007
Posts: 2,589
Likes: 5
From: Salisbury Maryland
NAPA fixed me up with a 105 amp set-up and an adapter plug. I had to remove the poly-V pulley that came on it and install my own pulley, but it works great with the fans and ampmeter.
I'll look up the part number when I get home tonight. If I remember it was less than $150 too.
I'll look up the part number when I get home tonight. If I remember it was less than $150 too.
Safety Car
Joined: Oct 2007
Posts: 3,729
Likes: 267
From: Austin Texas
Corvette of the Year Winner 2017
2016 C3 of Year Finalist
stock early C3 alternator is 60 amp output.
you can even keep your orginal and install new internal parts.
to increase it to 100 amp Output alternator.
the rpm it "makes juice" at is controlled by your pulley diameter.
69VETT
you can even keep your orginal and install new internal parts.
to increase it to 100 amp Output alternator.
the rpm it "makes juice" at is controlled by your pulley diameter.
69VETT
Racer
Joined: Feb 2007
Posts: 262
Likes: 2
From: FREDERICKSBURG VA
You might want to consider a load boss alternator from Alterstart, $129 135amp bolt in with existing eternal regulator.
http://storesense1.mysuperpageshosti...ail.bok?no=665
that one is chrome, here's the one I have for $89 also 135 amp
http://storesense1.mysuperpageshosti...ail.bok?no=745
http://storesense1.mysuperpageshosti...ail.bok?no=665
that one is chrome, here's the one I have for $89 also 135 amp
http://storesense1.mysuperpageshosti...ail.bok?no=745
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Melting Slicks
Joined: Jan 2003
Posts: 2,877
Likes: 13
From: Doha
St. Jude Donor '08
When I installed a dual 11 in. fans and a trans. cooler fan and got my A/C to work again, I knew that my stock 63A alt. wont do it, I got a CS144 instead and now its handling the loads like a champ 
Race Director
Joined: Nov 2002
Posts: 12,142
Likes: 54
From: Taylor Michigan
You dont need a One wire
We sell a stock GM 94 amp alternator that fits a Vette like a glove or can take your numbers Case and make it into the same performance....No need to modify your stock wiring and look just for more amps by using a non stock later model GM alternator. The 94 replaces the 37-42 and 55-63 OE types......
Le Mans Master
Joined: Dec 2006
Posts: 5,557
Likes: 9
From: Oquirrh Mountains
St. Jude Donor '09
We sell a stock GM 94 amp alternator that fits a Vette like a glove or can take your numbers Case and make it into the same performance....No need to modify your stock wiring and look just for more amps by using a non stock later model GM alternator. The 94 replaces the 37-42 and 55-63 OE types......
Get the 12SI drop in-version. Works just dandy w/my dual spal 11" fans.
Original 10SI:
The 94A 12SI that replaced it - after I pulled it apart and had the case chromed. Make sure and keep the 12SI fan:
altenator, alternater, alternator, amp, c6, change, cs, differences, gm, installing, location, making, meter, rpm, wire
