Fox T-Bird/Cougar Forums

Technical => Electrical Tech => Topic started by: kylesburrell on June 23, 2015, 09:26:04 PM

Title: 3G Alternator upgrade
Post by: kylesburrell on June 23, 2015, 09:26:04 PM
Hi guys,
I am looking to upgrade my headlights, but I want to upgrade to a 3G alternator before doing so. I found a 3G kit from late model restoration.

http://www.latemodelrestoration.com/item/SVE-17046K2/Mustang-SVE-130-Amp-Alternator-Upgrade-87-93-50L (http://"http://www.latemodelrestoration.com/item/SVE-17046K2/Mustang-SVE-130-Amp-Alternator-Upgrade-87-93-50L")

Is this a reasonable price to upgrade? Or can it be done MUCH cheaper?

Thanks

Kyle
Title: 3G Alternator upgrade
Post by: QUICKSHIFT on June 23, 2015, 10:08:08 PM
If you're willing to do some leg work in the pick'n'pull places, you can do it cheaper.

This link may help to give a better understanding on what your option are:

http://sbftech.com/index.php/topic,2679.0.html
Title: 3G Alternator upgrade
Post by: Ramos617 on June 23, 2015, 11:18:26 PM
You know that price isn't but but I'm sure warranty claims could be a pain and I bet it's a reman unit

I paid right around $200 for my 3g alternator from Oriellys which was a brand new unit with lifetime warranty
I think it was like another $20 bucks for a connector and wiring
There's plenty of how to's online to not have to buy a kit and still come out ahead
Title: 3G Alternator upgrade
Post by: Haystack on June 23, 2015, 11:56:28 PM
Hit the junkyard. Get the alt wiring and mega fuse for cheap or free. Buy a mega fuse holder for $10 or less at napa. Get a 12" starter cable for $5 to go from battery to fuse, then another cable to go from fuse to alt.

I bought. Junkyard al with a rebuilt sticker on it for $12. It worked fine, for cheap day. Then i ended up buying a taurus alt for $179.99 with a lifetime warranty.

The only wiring you have to do is to tape up the old wires or remove them, connect the yellow wire to the output stud of the 3g alt, and a butt splice from your old connectors green wire to the new alt plugs green wire and your done.

The junkyard alt fit in my bracket fine, but i clearances it anyways just in case. The new one needed to be reclocked (simple 5 min job) and one bolt hole was too small. I happened to have a large enough drill bit. The top hole also wasn't threaded, so i had to buy a longer bolt and nut.

Overall, i spent between $200-250 using an off the shelf alt. I think you would end up paying about the same either way honestly. I used 6 gauge wire, you could probably get away with an 8 gauge wire and a smaller fuse if you really want to. I used the 175 amp fuse and 6 gauge wire because that is what ford used and it is easy to get at any auto parts store.

Also with a store reman alt, you will always be able to get one, anywhere more likely then not same day in store.

If you can get lucky and get a good alt, you could probably do it for around $50.
Title: 3G Alternator upgrade
Post by: Haystack on June 23, 2015, 11:56:43 PM
Hit the junkyard. Get the alt wiring and mega fuse for cheap or free. Buy a mega fuse holder for $10 or less at napa. Get a 12" starter cable for $5 to go from battery to fuse, then another cable to go from fuse to alt.

I bought. Junkyard al with a rebuilt sticker on it for $12. It worked fine, for cheap day. Then i ended up buying a taurus alt for $179.99 with a lifetime warranty.

The only wiring you have to do is to tape up the old wires or remove them, connect the yellow wire to the output stud of the 3g alt, and a butt splice from your old connectors green wire to the new alt plugs green wire and your done.

The junkyard alt fit in my bracket fine, but i clearances it anyways just in case. The new one needed to be reclocked (simple 5 min job) and one bolt hole was too small. I happened to have a large enough drill bit. The top hole also wasn't threaded, so i had to buy a longer bolt and nut.

Overall, i spent between $200-250 using an off the shelf alt. I think you would end up paying about the same either way honestly. I used 6 gauge wire, you could probably get away with an 8 gauge wire and a smaller fuse if you really want to. I used the 175 amp fuse and 6 gauge wire because that is what ford used and it is easy to get at any auto parts store.

Also with a store reman alt, you will always be able to get one, anywhere more likely then not same day in store.

If you can get lucky and get a good alt, you could probably do it for around $50.
Title: 3G Alternator upgrade
Post by: TheFoeYouKnow on June 24, 2015, 07:17:39 AM
I bought a new lifetime unit from Napa, and pulled the output cable from a 09 Escape in a yard (it has an in-line 175A fuse), I picked up the 1-pin connector for $3 from Napa same time as the alternator.  Still, decent price, but any warranty issues could be tough to deal with.
Title: 3G Alternator upgrade
Post by: mcb82gt on June 24, 2015, 05:39:52 PM
I pulled a used Motorcraft alt off a v6 newer tbird for $20.  Bought a wire kit/fuse from online vendor for $45.  I know I overpaid for the wiring.  Still working great 5 yrs later.
Title: 3G Alternator upgrade
Post by: 83TB on June 26, 2015, 08:18:56 PM
I used the late model restoration kit my self, so far so good!!!
Title: 3G Alternator upgrade
Post by: jcassity on June 26, 2015, 09:59:52 PM
now when the headlamps come in play, click on my diy link and there are a couple threads in there on slave relay mods to take all that resistance and heat off the headlamp switch.

theres a mod for regular lamps and those with auto lamps,, mine are still going very very strong.
Title: 3G Alternator upgrade
Post by: T-Bird on August 04, 2015, 11:32:17 AM
How would I upgrade to a 3G alternator on an 86 with a 3.8?
Title: 3G Alternator upgrade
Post by: kylesburrell on August 04, 2015, 11:45:24 AM
I would think its the same. Unless the 3.8s got a different alternator/bracket. but i kinda doubt that
Title: 3G Alternator upgrade
Post by: Haystack on August 04, 2015, 12:47:46 PM
Bracket is different. All you have to do is measure from the bolt holes and figure out which style alt you have. There are only two bolt spacings that I know of. The larger one that's used in trucks and some cars like the crown vic, and our style like the mustangs have.
Title: 3G Alternator upgrade
Post by: softtouch on August 04, 2015, 01:39:20 PM
Stock alternators:
Title: 3G Alternator upgrade
Post by: T-Bird on August 05, 2015, 05:46:29 PM
Here's a picture of my alternator can you tell me what style it is? X I would also appreciate any specifics on what I will have to do to wire the 3G alt up. Specifically how would I bypass the voltage regulator?

I love my car but buying new batteries and alts every six months is getting old..
Title: 3G Alternator upgrade
Post by: JeremyB on August 05, 2015, 10:07:18 PM
Quote from: T-Bird;450309
How would I upgrade to a 3G alternator on an 86 with a 3.8?

http://www.foxtbirdcougarforums.com/showthread.php?1716-Alternator-upgrade-for-pre-88-3-8L