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Which ALT to get?

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Old Sep 27, 2013 | 01:14 AM
  #1  
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Which ALT to get?

Ok so I read the stuff in hio's hyperlink thingy on the 3g swap. Now, my buddy owes me some stuff and he has multiple new alternators for a mass array of projects. Ranging from 130 amp -200 amp ones. Which should I go with if its free? Most are from summit. He says if he doesn't have it he will order whichever I want. So....

1) Which one from summit would be my best bet if I could have any of them? And do I want a internally regulated one?
http://www.summitracing.com/search/p...engine-type/v8

2) Do I need one that is one wire capable?

3) Id like my alt gauge in the cluster and my aftermarket one under the dash to work.

4) I remember seeing somewhere that someone makes a new external regulated box that works with internally regulated alts to make the stock system work?



EDIT: My truck has more electrical crud then ud imaging if that makes a difference
 
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Old Sep 27, 2013 | 07:30 AM
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If money is no object then this one http://www.summitracing.com/parts/du...view/make/ford

If you are going to keep the single v belt that will limit the amount of amps you can produce with out the belt slipping.
 
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Old Sep 27, 2013 | 07:31 AM
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Originally Posted by SuperDuty93
1) Which one from summit would be my best bet if I could have any of them? And do I want a internally regulated one?
I think you should evaluate your needs first and foremost. More amps doesn't mean you get more amps, it just means the alternator is capable of generating the output if called upon. Read this post in full: https://www.ford-trucks.com/forums/1...l#post13427861

Internally regulated alternators, in general, are superior as they exhibit faster transient response.

Originally Posted by SuperDuty93
2) Do I need one that is one wire capable?
That's a personal choice. Again, refer to my link.

Originally Posted by SuperDuty93
3) Id like my alt gauge in the cluster and my aftermarket one under the dash to work.
The factory ammeter in your dash will never work. It's a shunt-style ammeter with extremely coarse resolution; it didn't do much from day one. Are you sure the aftermarket gauge under the dash is not a voltmeter? If it's a voltmeter, it's not going to care what alternator you have. If it's an ammeter, it can still be made to work, but you're much better served using a voltmeter.

Originally Posted by SuperDuty93
4) I remember seeing somewhere that someone makes a new external regulated box that works with internally regulated alts to make the stock system work?
That makes no sense. An alternator needs one regulator. The regulator used to be external to the alternator, sat on the inner fender, and ran long wires to the alternator to close the control loop. Once regulators became electronic (and smaller), they could be moved internal to the regulator, which is ultimately a much better design. If you have an internally regulated alternator, there is no external box that goes outside. They're all 12-volt systems, there's nothing about the "stock system" that understands the difference between what kind of alternator you're using, other than having to change wiring as necessary to accommodate the connections of the alternator.

Originally Posted by SuperDuty93
EDIT: My truck has more electrical crud then ud imaging if that makes a difference
I don't understand what that means.
 
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Old Sep 27, 2013 | 09:22 AM
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Like fmc400 said, a higher output alternator doesn't necessarily equal "better". If your truck has just the normal electrical loads then the stock alternator will be fine. While an internally regulated unit would be an improvement/upgrade, this would require some rewiring.
X2 on the stock ammeter. These were a poorly designed POS from the word go. One neat trick I've seen, there is a guy that rebuilds the stock ammeter and converts it to an honest to goodness working voltmeter and it looks factory.https://www.ford-trucks.com/forums/1...-of-these.html
If you have winches, lots of off-road lights or a big-a$$ stereo (I'll refrain from comments on that last one ) then you would probably need a high output alternator. If you don't have that stuff then you're paying for excess capacity that you'll never use.
If your electrical draw is 15 amps, all the alternator is going to put out is 15 amps. The fact that it "could" produce 200 amps is irrelevant.
 
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Old Sep 27, 2013 | 10:48 AM
  #5  
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Nothing fancy here but I just put a remy 1 wire in my 78 super cab.. after chasing regulators, wires and ground nightmares I said to hell with it, bought a used remy for 15$ and it has been PERFECT so far.. my other ford trucks will get the same swap.. and as a plus, it bolted right in!



 
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Old Sep 27, 2013 | 10:55 AM
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Originally Posted by Jdeshler



AAAARRGGHHHH!!!! Wire nuts !!!!!! and no terminal ends .
 
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Old Sep 27, 2013 | 11:27 AM
  #7  
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you need to fix that. can't believe you would post a pic of something so downright dangerous.
 
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Old Sep 27, 2013 | 11:44 AM
  #8  
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HACK ALERT! - HACK ALERT!

Dwooooop..... Dwooooop

Bong..... Bong.... Bong....

HACK ALERT! - HACK ALERT!
 
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Old Sep 27, 2013 | 12:13 PM
  #9  
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Lol, I know I know I know... ill do better I promise lol
 
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Old Sep 27, 2013 | 12:24 PM
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Originally Posted by Jdeshler
Lol, I know I know I know... ill do better I promise lol
Sorry Jd, just couldn't resist.
At least your heater hose is made in good ol' USA.
 
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Old Sep 27, 2013 | 01:01 PM
  #11  
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Double post oops.....
 
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Old Sep 27, 2013 | 01:05 PM
  #12  
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Originally Posted by mikeo0o0o0
Sorry Jd, just couldn't resist.
At least your heater hose is made in good ol' USA.
At least something under there is put together right mike lol.. I by all means wasn't trying to hijack guys! Sorry to the OP.. well I learned the hard way this time guys.. I'll be in my corner for a bit..
 
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Old Sep 27, 2013 | 01:44 PM
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Originally Posted by Jdeshler
At least something under there is put together right mike lol.. I by all means wasn't trying to hijack guys! Sorry to the OP.. well I learned the hard way this time guys.
Don't see any hijack, just a display of some "creative" workmanship.
To be honest, I think just about all of us here have some creative workmanship in our past, either out of necessity or lack of knowledge.
Hopefully we're all better now. I know my techniques have grown much better over the years.
 
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Old Sep 27, 2013 | 02:21 PM
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Originally Posted by HIO Silver
HACK ALERT! - HACK ALERT!

Dwooooop..... Dwooooop

Bong..... Bong.... Bong....

HACK ALERT! - HACK ALERT!

Hahaha I love this! . And thanks for all the input. When I get home ill read it all over and respond to everything.
 
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