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FOX ALTERNATOR UPGRADE. WHICH ONE? HELP PLEASE. NEED ONE ASAP.

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5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

FOX ALTERNATOR UPGRADE. WHICH ONE? HELP PLEASE. NEED ONE ASAP.

Old 05-15-2006, 01:06 AM
  #31  
PRO50SC
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Default RE: FOX ALTERNATOR UPGRADE. WHICH ONE? HELP PLEASE. NEED ONE ASAP.


ORIGINAL: settled4automatic

Bringin this thread back to life

i'm going to do the 3g conversion here on my 88gt soon. would you guys recommend getting a new 3g alternator?... or getting one off a car at the junk yard?? i don't know how much it would be at a junk yard, $50 or something -- but i can get a new one for $170+tax at my ford dealer.. i'm afraid of a junk yard one acting up, since it will have probably been sitting for a while. tell me what you all think --

new 3g/junkyard 3g?????
Well the one I bought from 50resto just crapped out so I sent it back to pa performance for repair. I bought a juck yard unit so I can still drive it around. It was 40 bucks, works great. Then I have a spare if it happens again.
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Old 05-15-2006, 03:28 AM
  #32  
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Default RE: FOX ALTERNATOR UPGRADE. WHICH ONE? HELP PLEASE. NEED ONE ASAP.

cool. i think i'm just gonna get a new 3g from my ford shop. i work at a GM shop, but my company has this other ford shop, along with another nissan/subaru -- so i get looootsa parts at cost i don't know if the $170 they priced me has any kinda core knockoff tho.. check into that tomorra!
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Old 05-21-2006, 10:34 PM
  #33  
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Default RE: FOX ALTERNATOR UPGRADE. WHICH ONE? HELP PLEASE. NEED ONE ASAP.

Hey guys I need to bring this thread back to life. I referred to these 2 links and installed a 3g alt last night and Im not getting any juice.

http://www.fordmuscle.com/archives/2...ce/index.shtml
http://www.corral.net/tech/maintenance/130a-tech.html

Here is what I did:

On the factory alt there is 2 connectors. I cut the one with the 2 black and orange wires and the small yellow and black (maybe white with a black stripe). Then I put terminals on the 2 black and orange wires and screwed them on the 3g post with a 4 gauge wire also going to the starter relay. The yellow black wire I spliced into the single wire going into the 3g alt. The other plug fits right into the plug in the 3g alt.
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Old 05-21-2006, 10:48 PM
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Default RE: FOX ALTERNATOR UPGRADE. WHICH ONE? HELP PLEASE. NEED ONE ASAP.

What you did sounds right. Did you check to see if you have juice to the power feed wire? Also, new or used unit?
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Old 05-21-2006, 10:59 PM
  #35  
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Default RE: FOX ALTERNATOR UPGRADE. WHICH ONE? HELP PLEASE. NEED ONE ASAP.

Used, The power feed lines are the black and orange ones right?
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Old 05-21-2006, 11:00 PM
  #36  
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Default RE: FOX ALTERNATOR UPGRADE. WHICH ONE? HELP PLEASE. NEED ONE ASAP.


ORIGINAL: 5.0 MPG

Used, The power feed lines are the black and orange ones right?
Yup. Maybe the junker is no good.
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Old 05-22-2006, 11:26 AM
  #37  
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Default RE: FOX ALTERNATOR UPGRADE. WHICH ONE? HELP PLEASE. NEED ONE ASAP.

I don't think you can use the stock plug on the new alt....I beleive the stocker only uses 2 of the 3 wires while the 3g uses 3 wires. You have to splice a harness in..... that's what I read.
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Old 05-22-2006, 12:07 PM
  #38  
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Default RE: FOX ALTERNATOR UPGRADE. WHICH ONE? HELP PLEASE. NEED ONE ASAP.


ORIGINAL: gspfunk

I don't think you can use the stock plug on the new alt....I beleive the stocker only uses 2 of the 3 wires while the 3g uses 3 wires. You have to splice a harness in..... that's what I read.
The regulator plus is the same. Just have to adapt the power wires.
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Old 05-22-2006, 12:21 PM
  #39  
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Default RE: FOX ALTERNATOR UPGRADE. WHICH ONE? HELP PLEASE. NEED ONE ASAP.

My factory alternator is 130 amp. I ran a 137 dB 2000 watt stereo off of this, no problems, no dimming lights or anything. 200 amp......what for? You dont have that many accessories. I think the one off of an 86 GT(should be similar output 130amp), will have the proper plug you need. Should be a direct bolt in.
-P.
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Old 05-22-2006, 12:40 PM
  #40  
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Default RE: FOX ALTERNATOR UPGRADE. WHICH ONE? HELP PLEASE. NEED ONE ASAP.

I have 2 200 amp alts and i can still draw them down 11 volts.I personally would take the 200 over the 130 any day
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