High output alternator swap?

[BIGJIMMY]

I was driving with my new fans and my alternator went out im pretty sure. Because my new electric fan was pullin too much juice. So I was told that there is an alternator swap I can do to my truck (86 Jimmy w/ 350,) to put on an early model alternator from a car or something. If anyone has info on this let me know. Or how to get a bigger alternator while cutting costs, again Im thinkin junkyard.

[bcolman]

i think you can just use a stock 140 amp alternator, i think they came in teh camaro, but i am not sure.

[BIGJIMMY]

do you know how much the stock one puts out that I have?

[bcolman]

i think it is a 90 amp, but i am not sure on that one too, just go to the parts store and ask, napa would give you the most info.

[eight]

You can not just use the 140 amp. It mounts different and you don't have the computer to control it. A 90 amp alternator should be enough and I think that's as big as the normal delcos got, maybe 96 amps. Other than that you can choose from a whole ****load of aftermarket high amp alternators or high amp conversion kits.

[Sharpe]

Search for cs144. I have beaten this topic to death. Its cheap but will be a PITa to mount in your situation. After you search if you have any specific questions let me know.

[sasquatch]

Search for cs144. I have beaten this topic to death. Its cheap but will be a PITa to mount in your situation. After you search if you have any specific questions let me know.

there aren't any at gordons unless they have them hoarded somewhere in the building

[Sharpe]

They are all stashed in racks in the shop.

[TxCruzr]

A 90 amp alternator should be enough and I think that's as big as the normal delcos got, maybe 96 amps.

x2
I've been running a 90amp and before that I was running whatever toyoda was using in 1969 and it handled it fine. I doubt a ford taraus came with a 200amp alt ;)

[Sharpe]

An 86 was carb'd and only had a ~70 amp alternator so yes with the fans upgrading is a neccesity. Before I made the swap on my truck with my factory 70 amp alternator the fans would drain the batteries even with the engine running.

[sasquatch]

An 86 was carb'd and only had a ~70 amp alternator so yes with the fans upgrading is a neccesity. Before I made the swap on my truck with my factory 70 amp alternator the fans would drain the batteries even with the engine running.

same thing happened to mine on the side of 47 at the last cleanup. fans out right killed battery with the motor running

[BIGJIMMY]

So whats a cs144? I can run to gordons and see what they got. What did you swap to?

[Sharpe]

Search.

[Sharpe]

http://tamor.org/forums/showthread.php?t=5601&page=16&pp=15&highlight=cs144

[bburris]

http://cgi.ebay.com/ebaymotors/CS144-Delco-Alternator-for-Buick-and-Oldsmobile_W0QQcmdZViewItemQQcategoryZ33573QQihZ00 9QQitemZ190087559228QQrdZ1QQsspagenameZWDVW

[RCcola55]

buy them all sharpe

[agjohn02]

buy them all sharpe


no way, he doesnt buy parts that work

[BIGJIMMY]

It actually worked and fit on their. I always have bad luck on that kinda stuff. where do you get the pigtail, advance and oriellys and napa dont carry it. Junkyard? And how do you wire it up?

[Sharpe]

Advance, O'Reilly's and Napa sure as hell do have the pigtail. Find a counterguy who isnt a dunce.

[william_ace]

take robert with you to autozone, he has an all clerance pass haha

[BIGJIMMY]

napa's got one, its like 10 bucks. How do you wire it up?

[JB]

we didnt have it, but i know we use too.

[sasquatch]

napa's got one, its like 10 bucks. How do you wire it up?

http://www.hotrodlane.cc/newhtml/smallalt.html

the plug should have the same letters. make sure you follow it closely

[BIGJIMMY]

Thanks

[BIGJIMMY]

Alright so I put in it and wired it up, and it works. But, the wires wiring up the fans are still getting extremely hot, I put a relay on, got a bigger alternator, whats the deal? Im pretty sure the wire we used to wire up the fans is like 12 gauge or 10 maybe. Any suggestions?

[sasquatch]

how long are the fan wires? are you sure of the guage of the wire?

[BIGJIMMY]

The wires are no more than 4 1/2 feet long for any of them. Mostly about 2 maybe. Some of the wires might be 14 gauge. But Im pretty sure its 12 or bigger

[sasquatch]

put a bigger guage in if everything is wired right.

[BIGJIMMY]

Aight Ill try

[DRAGOONRANCH]

Is the radiator clean, if not the fans may just be working too hard and not getting enough air to let them spin correctly.

[stx4wheeler]

the wires that run from my fan to the 12 volt source are like 8 gauge i think.

[Sharpe]

12 gauge should be adequete for that application. The windstar fans I am running draw as much if not more power than any other fan out there so if wire that heavy is getting noticably hot the fan's motor might be fecked up.

[agjohn02]

Alright so I put in it and wired it up, and it works. But, the wires wiring up the fans are still getting extremely hot, I put a relay on, got a bigger alternator, whats the deal? Im pretty sure the wire we used to wire up the fans is like 12 gauge or 10 maybe. Any suggestions?


yeah, quit touching the wire. poof, no more problem.


both of those solutions you mentioned would do nothing more than to put more current through the wire, therefore making it hotter. V=IR, I=heat

[BIGJIMMY]

Well me and my buddy figured it out, its the ground wire that went from the fan to the body, I spliced it with a 12 gauge, and not a 10 gauge, so it was overheating the wire, so we fixed that and BOOM BABY! It works, my engine stays so much cooler now, and that alternator is nice too. Thanks for the help!

[Sharpe]

I found this application chart while browsing ebay so all you suckas wont keep bugging me about what vehicles CS144's came in.

[stx4wheeler]

i need sharpe or weston to help me clock my case so i dont fawk something up

[Doug Krebs]

Well me and my buddy figured it out, its the ground wire that went from the fan to the body, I spliced it with a 12 gauge, and not a 10 gauge, so it was overheating the wire, so we fixed that and BOOM BABY! It works, my engine stays so much cooler now, and that alternator is nice too. Thanks for the help!

I know this guy doesn't exist anymore, but is he saying he swapped out a 10 gauge wire for a 12 gauge? I'm hoping he realizes like guns, wires get bigger the smaller their number.

[jerryg79]

I know this guy doesn't exist anymore, but is he saying he swapped out a 10 gauge wire for a 12 gauge? I'm hoping he realizes like guns, wires get bigger the smaller their number.

yeah i think he' saying he switched to a smaller wire and that was causing his problem.