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14.4v??

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Old Jun 26, 2006 | 03:08 PM
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Originally Posted by TJElite
Not to get too far off topic...which GM alternator are you refering to? Every one I've ever rebuilt had a rectifier pack, a regulator, and a diode...all seperate. The voltage regulators function is to control the exciting current in the windings. GM's do this by switching on and off...something a diode can't do. The regulator / diode / rectifier bridge might all be integrated into the same part on some of the new ones, though.

Toby
Yeah this is how the one you are talkin about was set up -

http://www.fourwheeler.com/howto/86978/

I bought a kit off ebay and it was just one piece for the diode/regulator but I also had an ebay brand 180a alternator as well. Unfortunately I didnt take pics back when I had my buick. I'm gonna have to tear down my 03's stock 105amp in a few months and Ill definitely take pics of that.
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Old Jun 27, 2006 | 12:35 PM
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Fuckkk... So i'm thinking just doing. 2 d6 12" on the mrd1005 upgrading the motor ground and putting another batter and see how it sounds.

Last edited by KartRex; Jun 27, 2006 at 01:00 PM.
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Old Jun 27, 2006 | 01:13 PM
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Originally Posted by KartRex
Fuckkk... So i'm thinking just doing. 2 d6 12" on the mrd1005 upgrading the motor ground and putting another batter and see how it sounds.
For the third time, another battery is not going to increase your voltage - it will decrease it.
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Old Jun 27, 2006 | 05:28 PM
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Like I said do your big 3, then upgrade your alt when you get extra cash and then you won't lose any voltage.
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Old Jun 28, 2006 | 05:02 AM
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i am not going to be able to do the 3 there is not enough room in the back so i am just going to have to stick with doing the 2.i found sound dampening for really cheap so i am going to do the whole truck
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Old Jun 28, 2006 | 05:49 AM
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Originally Posted by NoTLaDStyle
For the third time, another battery is not going to increase your voltage - it will decrease it.
Extra batteries do have their place, however. Think of the altenator as your job, and a battery as your piggy bank. Your daily expenses get paid by your job, and you've got some left to throw in the ole piggy. But when you miss a couple days, but still want the AudioThunder 100000 you've been dreaming of, you bust open said piggy, and spend baby, spend.

Same thing in car audio. Your alternator puts out current, say, 100 amps. On a regular day, music at normal level, maybe your amp uses 25 of that, and the rest of the car another 25 (just numbers here). The remaining 50 can go in your battery, for later. Now, a good tune comes on, you crank the stereo, and start driving faster (the two just go together). Now, your amp is pulling 75 amps, and your car 50. Since your alternator can only provide 100 amps, the other 25 have to come from your battery. Obviously, if you did this too long, your car would be stopped and silent.

The extra battery acts just like an extra piggy bank. The alternator will fill any demands, and then take the rest of the day off. That can mean filling one battery, or seven batteries. Obviously, more piggies is good for those spending sprees.

Now, think of your stereo as your girl. If she's cool, and just goes along with things, and doesn't mind QSL Thursday's as her night out, that's great. Your job will be good enough, and you can get by with one or two piggy banks. But, if she's one of those Paris wannabes who just has to have the latest designer shit, and only eats at places you can't pronounce, you'll eventually need a better job, or another job. See where this is going...piggy banks only work if you can refill them quicker than you empty them. Batteries only work if you have enough alternator to refill them before your stereo sucks them dry. If your stereo is high maintenance, you'll soon need either a bigger or a second alternator. Just like the hot chick, everyone wants a bigger, badder stereo, but you can't score the hottie working at BK. Or, you can date the more realistic chick, who's content only going out big time once or twice a week.

So, if you've got a modest to large stereo, and you can live with modest volume most of the time, but still want to jack it up once in a while, your stock alternator and battery, plus maybe one more, will do it. But, if you have to be cranking it all the time, and / or you just need bunches of watts, you'll need a bigger, better (or second) alternator.

Also, contrary to popular belief, if you're pulling big power, more batteries and bigger alternators generally wont keep your lights from dimming on bass notes, nor will they keep you at 14.4, or even 13.8 volts. Nothing happens that instantaniously. When your amp suddenly wants 150 amps, even your 250 amp alternator takes time to get there. Sure, your batteries try to pitch in, but they don't react intantly, either. In whatever amount of time this takes, there will be a voltage drop, and your lights will dim.

If I were you, I'd give up on trying to get 14.4 at the amps. The amount of time and money that would take is just not worth it. Like I said above, even all the way down at 12v, you only lose about 1 db. Since you'll probably be up around 13.5, the loss will be even less. If you just have to have 1000 watts RMS in your setup, find an amp that will do it at 12.5-13v, instead of 14.4.

Toby
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Old Jun 28, 2006 | 06:20 AM
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^^^LOL you lost me until you started talking about the female then I caught on.
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Old Jun 28, 2006 | 06:24 AM
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Originally Posted by KartRex
i am not going to be able to do the 3 there is not enough room in the back so i am just going to have to stick with doing the 2.i found sound dampening for really cheap so i am going to do the whole truck
The Big 3 aren't batteries. Doing the big 3 involes upgrading your power and ground to 0 guage.

it requires all 0 guage wire
1. from alternator positive to battery positive
2. from battery negative to frame
3. from frame to engine block

I just Dynamatted the Trunk of the Caddy today.....man it gets fucking hot! lol It's pretty simple to do. Imma have the headliner dynamatted next week when I get my suede headliner put in and do the doors later on lol.
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Old Jun 28, 2006 | 06:31 AM
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Originally Posted by the727kid
The Big 3 aren't batteries. Doing the big 3 involes upgrading your power and ground to 0 guage.

it requires all 0 guage wire
1. from alternator positive to battery positive
2. from battery negative to frame
3. from frame to engine block
Can I get an Amen?!? This should be done by everyone with an aftermarket system, regardless of size. For all you go fast types, #3 can actually add HP, by giving your sensors a better ground reference. For best results though, I'd probably suggest several 4ga or 8 ga wires, going from different parts of the engine to the frame. Just make sure every connection is good.

Sure, 0 Ga might be overkill for some systems, but a) your not using much, so it won't cost that much more than smaller wire and b) this way, you only do it once, instead of doing it with 4 ga for your 500 watt system, just to have to redo it down the road when you go to 1000 watts.

Toby
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Old Jun 29, 2006 | 12:48 PM
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Deffintaly
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