1 wire vs 3 wire

Engine, ignition, fuel, cooling, exhaust

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BigAl47
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1 wire vs 3 wire

Post by BigAl47 »

Want to upgrade my alternator to 100 amp but I’m having a problem finding with the 3 wire oem connection. Is it a problem using a one wire alternator if so will the amp gauge still work? Any other problems
Thanks :fr:
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390FE1972
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Re: 1 wire vs 3 wire

Post by 390FE1972 »

Here is an interesting youtube by Auto Restomod, where they install a 100AMP one wire alternator on a 1972 F100:

https://youtu.be/qA8p2EThGXc

Hope this helps! :thup:
1972 F250 Sports Custom 390 FE C6 2WD Dana 60 4:10 gears
HDxLoki
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Re: 1 wire vs 3 wire

Post by HDxLoki »

I'm currently in the middle of my 390 rebuild. When it come times to the charging system I plan on throwing in a Ford 3G Alt from a late 90's Mustang with a 3.8L. Mostly because you can pick one up at just about any autoparts store. Plus that 130 amps is more than enough to power my Spal fans and electronic ignition.

Here's a few links that helped me make up my mind:

https://www.hotrod.com/articles/install ... der-fords/

http://www.fordification.com/forum/view ... =8&t=82359
1972 F250 Ranger XLT Camper Special 390ci Bought Brand new in 1972 and passed down from my Grandpa after he passed
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sargentrs
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Re: 1 wire vs 3 wire

Post by sargentrs »

A good article on 1 wire vs 3 wire alternators.

http://www.madelectrical.com/electrical ... wire.shtml
Randy
1970 F100 Sport Custom Limited LWB, 302cid, 3 on the tree. NO A/C, NO P/S, NO P/B. Currently in 1000 pcs while rebuilding. Project thread: http://www.fordification.com/forum/view ... 22&t=59995 Plan: 351w, C4, LSD, pwr front disc, p/s, a/c, bucket seats, new interior and paint.
1987 F-150 XLT Lariat, 5.0/C6 auto.
BigAl47
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Re: 1 wire vs 3 wire

Post by BigAl47 »

Can you still use your oem alternator bracket for the mustang alternator :fr:
Thanks
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