Topic Sponsor

Bigger alternator?

Thread Tools
 
Search this Thread
 
Old Mar 29, 2014 | 01:35 PM
  #1  
BigBadFord-MN's Avatar
Thread Starter
Senior Member
 
Joined: Apr 2013
Posts: 104
Likes: 1
From: Coon Rapids,MN
Default Bigger alternator?

Hey guys!

I just recently had installed some Hella 550F's and I notice that when on the Voltage drops. I'm thinking i need a bigger alternator. I have the stock 60 amp and I don't think that cuts it.

Thoughts?

P.S I also have it when I'm at a light the voltage will drop down with nothing on.
Reply
Old Mar 30, 2014 | 12:34 AM
  #2  
memoniz's Avatar
Senior Member
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2012
Posts: 535
Likes: 63
From: Raleigh, NC
Default

Sounds to me your alternator is going bad.
Reply
Old Mar 30, 2014 | 01:12 AM
  #3  
unit505's Avatar
Salvage Yard Pro
 
Joined: Feb 2012
Posts: 2,543
Likes: 129
From: Keithville, La
Default

Let's say your alternator is performing correctly and putting out 13.8v. 2 55w hellas, 2 55w low beam headlights, say another 100w for the marker lights and license plate lights = 23.18 amps drawing from your 60a alternator. Not counting the amps the ignition system is drawing (I honestly have no idea), your probably drawing half of the rated amperage. Throw in any stereo amps or other dc accessories, and you could be pulling more than half of the rated amps. I would think about the 3g 130amp and maybe the health of your battery. It sucks, but I 've got to go to Wally World tomorrow and dump a bill on a new battery.
Reply
Old Mar 30, 2014 | 08:55 AM
  #4  
BigBadFord-MN's Avatar
Thread Starter
Senior Member
 
Joined: Apr 2013
Posts: 104
Likes: 1
From: Coon Rapids,MN
Default

Originally Posted by unit505
Let's say your alternator is performing correctly and putting out 13.8v. 2 55w hellas, 2 55w low beam headlights, say another 100w for the marker lights and license plate lights = 23.18 amps drawing from your 60a alternator. Not counting the amps the ignition system is drawing (I honestly have no idea), your probably drawing half of the rated amperage. Throw in any stereo amps or other dc accessories, and you could be pulling more than half of the rated amps. I would think about the 3g 130amp and maybe the health of your battery. It sucks, but I 've got to go to Wally World tomorrow and dump a bill on a new battery.
I've got a new battery (Damn winter) Although surprisingly my 625 CCA in winter starting each time at -50 was fcking AWESOME!

I like the idea of the 3g but I don't really know it. Thoughts?
Reply
Old Mar 30, 2014 | 11:30 AM
  #5  
unit505's Avatar
Salvage Yard Pro
 
Joined: Feb 2012
Posts: 2,543
Likes: 129
From: Keithville, La
Default

Well, there were two facotry alternators for the '93 5.0. A 75a and a 95a.

My thoughts are, a stock 95a side mount runs $100 - $260 from Oreilly Auto Parts. I'm a cheap S.O.B. I'd buy the $99 one or go to the salvage yard and check these vehicles that had the 130a option. These will be plug and play with no wiring harness mods needed.
93-96 V8 Econoline with Air Conditioning or the High Output Alternator options
97-03 V6 Econoline E-Series or F-150
95-01 4.0 V6 Explorer or Ranger

Last edited by unit505; Mar 30, 2014 at 11:33 AM.
Reply
Old Mar 30, 2014 | 11:34 AM
  #6  
Forge-World-FORD's Avatar
Senior Member
 
Joined: Jun 2011
Posts: 2,364
Likes: 102
Default

Jeez. Not difficult info to find. I've shared a lot.

http://fullsizebronco.com/forum/showthread.php?t=55169
Reply
Old Mar 30, 2014 | 11:36 AM
  #7  
unit505's Avatar
Salvage Yard Pro
 
Joined: Feb 2012
Posts: 2,543
Likes: 129
From: Keithville, La
Default

That's the same info I just posted. Just copied and pasted so he didn't have to hunt.
Reply
Old Mar 30, 2014 | 11:41 AM
  #8  
Forge-World-FORD's Avatar
Senior Member
 
Joined: Jun 2011
Posts: 2,364
Likes: 102
Default

Originally Posted by unit505
That's the same info I just posted. Just copied and pasted so he didn't have to hunt.
You gave partial info. I gave a link to pretty much all the interchangeability info for the 3g. No hunting involved.
Reply
Old Mar 30, 2014 | 11:57 AM
  #9  
BigBadFord-MN's Avatar
Thread Starter
Senior Member
 
Joined: Apr 2013
Posts: 104
Likes: 1
From: Coon Rapids,MN
Default

I found the links however I was asking for thoughts on is it worth it.
Reply
Old Mar 30, 2014 | 12:01 PM
  #10  
Forge-World-FORD's Avatar
Senior Member
 
Joined: Jun 2011
Posts: 2,364
Likes: 102
Default

Originally Posted by BigBadFord-MN
I found the links however I was asking for thoughts on is it worth it.
Yes. Plain and simple. Why wouldn't you want to do such a simple and cheap upgrade? If you plan on doing anything that's going to add to your electrical load why wouldn't you want more power available?
Reply



All times are GMT -4. The time now is 11:49 PM.