Alternator upgrade, Which brand????
Thread Starter
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Elder User
Joined: Jun 2002
Posts: 812
Likes: 0
From: Woodbridge NJ
Alternator upgrade, Which brand????
I'm looking into upgrading my alternator in my 1991 5.0L. engine.
I was wondering what brand that you guys recommend.
I'm currently running a remanufactured 100 amp alt from a mustang.
I've seen a bunch on Ebay. Any thoughts?
Thanks,
Jerry
I was wondering what brand that you guys recommend.
I'm currently running a remanufactured 100 amp alt from a mustang.
I've seen a bunch on Ebay. Any thoughts?
Thanks,
Jerry
Senior User
Joined: Jan 2003
Posts: 383
Likes: 1
From: Newport News USA
Alternator upgrade, Which brand????
I'm currently running the 130amp alt. I got off ebay from Alterstart. I've had great luck with it, but the install was a slight bit more painful that I thought. I had to use a cold chisel to chop out a portion of the alternator bracket to get it to fit. However, it did come with the lil' plug and a new bolt, which helped the install a bit. I'd buy it again, if I had to. 
Luke
Luke
Senior User
Joined: Jan 2003
Posts: 383
Likes: 1
From: Newport News USA
Alternator upgrade, Which brand????
Instead of using the big "prone to melting" plug, you take two eyelet wire connectors (10-12 gauge) for the main voltage wires, that then get mounted to the stud on the back of the alt. the wire left over attaches to the "lil'" plug, and inserts into the alt.
Now if you meant wiring elsewhere, I run a 2 gauge positive batt. cable, and a 4 gauge neg. batt. cable. All the other wiring, minus all my haphazard gauge wiring, is stock.
Now if you meant wiring elsewhere, I run a 2 gauge positive batt. cable, and a 4 gauge neg. batt. cable. All the other wiring, minus all my haphazard gauge wiring, is stock.
Thread Starter
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Elder User
Joined: Jun 2002
Posts: 812
Likes: 0
From: Woodbridge NJ
Alternator upgrade, Which brand????
Are these the same guys you bought yours from?
http://cgi.ebay.com/ebaymotors/ws/eB...category=33573
http://cgi.ebay.com/ebaymotors/ws/eB...category=33573
Lead Driver
Joined: Sep 2002
Posts: 9,539
Likes: 2,030
From: North Texas
Alternator upgrade, Which brand????
That's where I got mine from too!
The install is pretty easy. You do have to modify part of the bracket...Dremmel works well, Air powered die grinder, hell even a drill bit and file.
I upgraded the power wire from the alternator to the solenoid from that 10awg crap to a nice 4awg wire. My batt cables are 2awg now.
https://www.ford-trucks.com/user_gal...=17940&width=0
That pic should show all my larger wiring. Look in the back part of the pic for my fuse holder and 4awg alt wire. By the coffee can and jack. You can also see my 4awg amp wire too!
I plan to upgrade to a 180-200A unit before I swap to electric fans. I have a very slight undercharge at idle with the A/C on and the headlights and that would only get worse with 30A worth of fans.
The install is pretty easy. You do have to modify part of the bracket...Dremmel works well, Air powered die grinder, hell even a drill bit and file.
I upgraded the power wire from the alternator to the solenoid from that 10awg crap to a nice 4awg wire. My batt cables are 2awg now.
https://www.ford-trucks.com/user_gal...=17940&width=0
That pic should show all my larger wiring. Look in the back part of the pic for my fuse holder and 4awg alt wire. By the coffee can and jack. You can also see my 4awg amp wire too!
I plan to upgrade to a 180-200A unit before I swap to electric fans. I have a very slight undercharge at idle with the A/C on and the headlights and that would only get worse with 30A worth of fans.
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Lead Driver
Joined: Sep 2002
Posts: 9,539
Likes: 2,030
From: North Texas
Alternator upgrade, Which brand????
I think 200A is more than enough. My slight undercharge now is b/c I still have a big ol' alternator pulley on there. I have a tiny 1.75" I need to install.
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