Alternator Size
Le Mans Master
Joined: Jan 2001
Posts: 6,723
Likes: 1,378
Here you go; should be all the info you need....
FROM AN OLD POST OF MINE:
Info on CS-144 models at this website:
http://www.extreme4wheelin.com/tech/...ators/tech.htm
And the site below tells you how to figure out which adapter to buy for your CS-144 tie in to your 12SI: I also added the key paragraph below in case you cannot open it.
http://72.14.253.104/search?q=cache:...lnk&cd=2&gl=us
"If you are unsure which adapter to use, measure the resistance of the exciter line. Disconnect the positive battery cable and the alternator plug. Connect an ohm meter between the #1 terminal on the plug end of the alternator harness and the end of the positive battery cable. Turn the ignition key to the "on" position and read the ohmmeter. If resistance is less than 35 ohms, use adapter #8078. If it’s between 35-350 ohms, use #8077. If it’s more than 350 ohms, you have excessive resistance somewhere in that circuit which needs to be repaired, first."
And below is a previous post I made with some more info:
http://forums.corvetteforum.com/show....php?t=1635804
Info on CS-144 models at this website:
http://www.extreme4wheelin.com/tech/...ators/tech.htm
And the site below tells you how to figure out which adapter to buy for your CS-144 tie in to your 12SI: I also added the key paragraph below in case you cannot open it.
http://72.14.253.104/search?q=cache:...lnk&cd=2&gl=us
"If you are unsure which adapter to use, measure the resistance of the exciter line. Disconnect the positive battery cable and the alternator plug. Connect an ohm meter between the #1 terminal on the plug end of the alternator harness and the end of the positive battery cable. Turn the ignition key to the "on" position and read the ohmmeter. If resistance is less than 35 ohms, use adapter #8078. If it’s between 35-350 ohms, use #8077. If it’s more than 350 ohms, you have excessive resistance somewhere in that circuit which needs to be repaired, first."
And below is a previous post I made with some more info:
http://forums.corvetteforum.com/show....php?t=1635804
Thread Starter
Burning Brakes
Joined: Sep 2005
Posts: 895
Likes: 4
From: whitman massachusetts
Alternator Upgrade
Want to thank all members for input. In my particular case, after hours of reading, I have decided to go with a GM 12SI 110amp 3-wire alternator. It is reasonably priced, direct replacement, and more than adequate for the upgrades I will be making. Just a sidenote to any members who may be planning an upgrade to the CS-130. I read some horror stories on this alternators design and performance. It seems that it was so bad, it has been replaced with a completely different model, designated the CS130-D. Thanks again!
Racer
Joined: Feb 2009
Posts: 427
Likes: 49
From: Pgh. Pa.
12 SI is the way to go. Easy to get and install. A stock 94amp would have been more than enough and probably less expensive too. It may even perform better at low RPM than the 110amp unit.
The cs-130 had some problems,but it was mostly heat related. A QUALITY rebuilt unit was superior to the OE design and eliminated most problems. The OE unit on a rear wheel drive car or truck (better cooling) could be expected to go 100,000 miles. The same unit on a transverse mounted motor (lots of heat and less cooling) would only get about 50,000. For its size and good low RPM out put the CS has some good uses.
The cs-130 had some problems,but it was mostly heat related. A QUALITY rebuilt unit was superior to the OE design and eliminated most problems. The OE unit on a rear wheel drive car or truck (better cooling) could be expected to go 100,000 miles. The same unit on a transverse mounted motor (lots of heat and less cooling) would only get about 50,000. For its size and good low RPM out put the CS has some good uses.
Le Mans Master
Joined: Dec 2006
Posts: 5,557
Likes: 9
From: Oquirrh Mountains
St. Jude Donor '09
http://www.madelectrical.com/electri...elcoremy.shtml
From Napa:
http://www.napaonline.com/Catalog/Ca...(P_RecType%3aA)
Here's mine after I had the case chrome plated:
Last edited by Ben Lurkin; Mar 5, 2012 at 04:46 PM.
