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Author Topic: Voltage dropping
1louds-10
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Here is my problem I'm dropping voltage on my batteries from 12.24 truck running nothing on to 8.82 with system on. Here is what my system contains. 16 12" xlc's running off 4 RF 800a2's. I'm running the stock alt. from an 82 S-10. For batteries I have 3 yellow tops. I'm wondering what I can do to get the voltage to be more stable. Would a bigger alt. work better than more batteries. I need a fix for this because I have a big comp. coming up on Sunday. So far my best is 150.4 with the gains all the way down, so I'm hoping that the more power it will jump me up a few more dB's.

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SHAKEN THE HEARTLAND OF AMERICA


Posts: 577 | From: Topeka Ks | Registered: May 1999  | Report this post to a Moderator
doughboy
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3 yellow tops? to 4 amps? get another yellow top "1 for each amp" and get a bigger alt. My god man 4 800a2's! thats like 4000watts can you imagine the amp draw from them on a stock alt? yesh dont mind me Im just getting a stick and some marshmellows in preparation for the fire : )

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Doughboy
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Posts: 685 | From: Alton, Illinois | Registered: May 1999  | Report this post to a Moderator
1louds-10
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I have 2 yellows in the bed and one under the hood. As for the Alt. Does anyone know if a full size chevy truck alt will mount up to my brackets with out mods, one shop that I talked to said yes but I would like to have more opinions on this. Because some of the one ton 4x4's have 150 and 200 amp alts.

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SHAKEN THE HEARTLAND OF AMERICA


Posts: 577 | From: Topeka Ks | Registered: May 1999  | Report this post to a Moderator
Thunder
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Sir:

Sounds like you MIGHT have a battery going down. I would have each of them load tested, replace any problems and then find some more battery power.

As far as the Alt. most GM parts men can tell you if the brackets are the same on the alt you are looking at. Or you could use the smog pump bracket and add a second alt for just the stereo.. (Hummmmm!)

just a thought....


Thunder.
Because Size DOES MATTER!

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Posts: 538 | From: Pearl, MS | Registered: May 1999  | Report this post to a Moderator
johnwayne_401
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If you have a V6 in the S-10 you will have little problem adding the new alt, if you don't have AC or any other such belt driven stuff...

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Would you like fries with that???


Posts: 186 | From: Grande Prairie, Alberta, Canada | Registered: May 1999  | Report this post to a Moderator
1louds-10
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I wish that I had a V6 in it. But I have a 4 banger (1.9) let me till you that 16 12's, a whole lot of 1" of mdf, extra batts, amps, and other stuff sure makes moving the thing fun.

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SHAKEN THE HEARTLAND OF AMERICA


Posts: 577 | From: Topeka Ks | Registered: May 1999  | Report this post to a Moderator
Xavier
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Used to have an 81.5 S-10, 1.8 4 cyl. Couldn't kill the damn thing (tried running it into a house and through a Johnstown winter [4 feet of snow]). Still couldn't kill it

Anyway, yah like Thunder said, any GM guy worth his weight in salt will be able to tell you if you can transfer one alt to another vehicle. You shouldn't have much trouble. Also, look into an accuvolt and rewinding your alternator (rewinding may be cheaper than new). If you can find a good used alt from a full size, you'll have it made!

Xavier

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1-800-TIAMAT
P.D.I.
Louder 'n' Prouder


Posts: 20 | Registered: Aug 1999  | Report this post to a Moderator
   

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