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electrical upgrading for 2k watts

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=98778
Printed Date: April 28, 2024 at 2:11 PM


Topic: electrical upgrading for 2k watts

Posted By: mazzasec
Subject: electrical upgrading for 2k watts
Date Posted: November 08, 2007 at 3:06 PM

Well I am planning getting a 2 Fi Bl 15" setup with this amp

https://cgi./SoundStream-PCA2000D-Mono-D-Class-4000W-Amplifier-NEW_W0QQitemZ150174680000QQihZ005QQcategoryZ64570QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

i will also get this wiring kit

https://cgi./KICKER-1-0-GAUGE-6000w-DUAL-AMP-WIRING-INSTALL-CAR-KIT_W0QQitemZ270180996840QQihZ017QQcategoryZ79815QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

and with whatever wires are extra use them to upgrade to the "big 3"

All will be put in a 2004 ford explorer. My question is though will I DEFINETLY need to upgrade my alternator? or will i do fine with just upgrading the big 3?



Replies:

Posted By: coppellstereo
Date Posted: November 08, 2007 at 3:34 PM
Most stock alternators are JUST big enough to run the car. Anything over that is cause for an upgrade. Especially one of 4000w. Thats some serious amperage.




Posted By: haemphyst
Date Posted: November 08, 2007 at 4:01 PM
1: eBay links don't work here. (Geez, doesn't anybody READ anymore? It's in the agreement you said "Yes, I agree to abide by all of these rules" to, when you signed up...)

2: Yes. Think about it. 2000RMS watts out, with all-digital amplification, allowing 80% efficiency, that's 2500 watts demanded from the electrical system. 2500 watts, divided by 14.4v equals 173.6A. Your alternator isn't even that big WITHOUT having to run all of the other stuff in the car, like lights, the engine, AC, wipers... An '04 Exploder, maybe 105A... MAYBE. Probably more like 80A. Yeah, you're going to have to upgrade the alternator, too... I'd recommend at LEAST a 200+ amp unit, 250 would be better.

-------------
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."




Posted By: mazzasec
Date Posted: November 11, 2007 at 11:15 PM
the 04 explorer comes with a stock 130 amp alternator alot of people are telling me i will do fine with that




Posted By: haemphyst
Date Posted: November 11, 2007 at 11:45 PM
mazzasec wrote:

the 04 explorer comes with a stock 130 amp alternator alot of people are telling me i will do fine with that

OK. Here we go...

1. Don't ask for information and help if you've already gotten answers that fit what you wanted to hear.
2. Still, doing the math, EVEN IF your car DID come with a 130A alternator (which I can pretty much assure you, it DIDN'T), you STILL can't pull 176 rabbits out of a 130 rabbit hat.

Do it your way. I REALLY don't care. Do I sound wizzed? Good, because I am.

:::::EDIT::::::
According to my searches, the V8 did come with a 130A, but the V6 came with a 95A.

So, you might be right, but I still maintain you WILL NOT be ok with your stock alternator, and adding 2000 watts worth of amplifier.

Do the math. If you DEDICATED your entire output from your alternator, ALL 130A OF IT, 130A X 14.4V = 1872 watts, multiply that by .8 and you get 1497 watts. So, basically, if you DIDN'T RUN ANYTHING ELSE IN YOUR CAR, including the CAR ITSELF, your existing alternator won't have enough power to run a 2000 watt amplifier, it'll run a 1500 watt amplifier, and nothing else. End of story.

Still, whatever... Do it however you want, and have fun replacing your stock alternator at the Ford dealership in a year...

Either that, or go buy a cap. posted_image

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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."




Posted By: mazzasec
Date Posted: November 12, 2007 at 7:31 PM
justtrying to get as much opinions as possible i also think i was recommend getting another batt and a capacticator to get the 2000 from the stock 130 alt




Posted By: jmelton86
Date Posted: November 12, 2007 at 7:50 PM
If you're gonna be driving around with your music at full blast, then you're gonna need an HO alt. At least a 200amper.

-------------
2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001




Posted By: Alpine Guy
Date Posted: November 12, 2007 at 8:09 PM
No question about it, you NEED AN ALTERNATOR, it MAKES POWER, a battery/ capacitor stores the power that the ALTERNATOR makes...without the ALTERNATOR, where would you power come from? Man, if you can figure out how to get an extra battery or 2 to properly power a 2000 watt system let me know, I want to buy stock in your company because you will have discovered the holy grail of electronics...power that magically appears.....   Are you a magician?

Last time I remember, when I ask my engineering teacher a question, I believe him....right now we are your teachers and your our student. Right now your failing.

Sorry if that came out prude, and demeaning, but I had to get my point across. By the way, nice subs!

-------------
2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.




Posted By: mazzasec
Date Posted: November 28, 2007 at 10:36 PM
is this a good alternator for the price?

https:////EXPLORER-MOUNTAINEER-HIGH-OUTPUT-AMP-ALTERNATOR-96-04_W0QQcmdZViewItemQQcategoryZ33573QQihZ003QQitemZ130175341115QQrdZ1QQsspagenameZWDVW

i will be running a 2500 rms system in my 04 explorer it already has a stock 130 amp alternator but will that one be a good upgrade?




Posted By: jmelton86
Date Posted: November 28, 2007 at 11:00 PM

haemphyst wrote:

1: eBay links don't work here. (Geez, doesn't anybody READ anymore? It's in the agreement you said "Yes, I agree to abide by all of these rules" to, when you signed up...)

haemphyst wrote:

176 rabbits out of a 130 rabbit hat'
NICE analogy!

haemphyst wrote:

Either that, or go buy a cap. posted_image 
-He was totally joking! Seriously, don't get ANY caps!

Anyways, the V6 came with a 130amper, while the V8 had a 130amper OR 140amper.

You're still gonna need a HO alt, Period.



-------------
2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001




Posted By: mazzasec
Date Posted: November 29, 2007 at 9:21 AM
i know im buying an alternator read my last post


is this a good alternator for the price?

https:////EXPLORER-MOUNTAINEER-HIGH-OUTPUT-AMP-ALTERNATOR-96-04_W0QQcmdZViewItemQQcategoryZ33573QQihZ003QQitemZ130175341115QQrdZ1QQsspagenameZWDVW




Posted By: haemphyst
Date Posted: November 29, 2007 at 9:45 AM
Yet again, we have a failure to communicate. You are trying to post an eBay address, which you have now been told THREE TIMES do not work here. The servers will delete AUTOMATICALLY any reference to eBay and modify any embedded link. YOU CANNOT POST EBAY LINKS! That's 4 times. I'm surprised your account hasn't been locked yet, but if you keep trying, I bet you can make a mod angry enough that you just might get your wish! Only 8 posts, and demoted to Stock Boy, and right before the holidays, too...

-------------
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."




Posted By: aznboi3644
Date Posted: November 29, 2007 at 4:22 PM
ignorance is bliss ain't it??




Posted By: haemphyst
Date Posted: November 29, 2007 at 4:30 PM
aznboi3644 wrote:

ignorance is bliss ain't it??

And I'm ALMOST ready to believe we have some of the happiest people on the planet here! posted_image

-------------
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."




Posted By: tcss
Date Posted: November 29, 2007 at 4:44 PM
Dave, stop sugar coating it, tell us what you REALLY think!

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There is no such thing as free installation!




Posted By: haemphyst
Date Posted: November 29, 2007 at 6:23 PM
I did say "almost". I have to qualify it, because I live with the happiest people on earth... That's CERTIFIED, by the way! These Bakersfieldians like Buck Owens, for Pete's sake!

That's what I really think... posted_image

-------------
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."




Posted By: mazzasec
Date Posted: November 29, 2007 at 9:35 PM
ok well no one told me NOT to post ebay links im sorry wont do it again so can anyone answer my question now?




Posted By: mazzasec
Date Posted: November 29, 2007 at 9:37 PM
EDIT: well this was a seperate topic that was merged into one so i posted a ebay link into my new topic not coming back to the older one and seeing NOT to post ebay links it wont happen again i just want to know if thats a good alternator for my application




Posted By: jmelton86
Date Posted: November 29, 2007 at 9:40 PM
Well, since the link doesn't work, we can't see it. We have no idea of what alt you are talking about.

-------------
2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001




Posted By: haemphyst
Date Posted: November 29, 2007 at 10:16 PM
I finally went and looked at it... I was able to find it, and it seems like a decent alternator. Warranty seems a bit short for my tastes, though. OK price, but remember, you ALWAYS get what you pay for. In that price range for "200+ Amps", you're probably getting an "Audiobahn of the HO Alternator world".

Buyer beware. Check here... Before you plunk down your hard-earneds. Significantly more expensive, but you really DO get what you pay for, in this case. If, as jmelton says, your car came with a 130A, then the additional 70A won't be worth the outlay of funds. Look bigger. What motor is in your Exploder?

-------------
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."




Posted By: mazzasec
Date Posted: November 29, 2007 at 10:24 PM
so i could just get a 70 amp alternator and just add it into my car with the 130 amp one?




Posted By: haemphyst
Date Posted: November 29, 2007 at 10:34 PM
Not likely. Dual alternators usually involve relatively elaborate fabrication, and FAR more time, all adding up to more COST than buying a properly sized alternator in the first place. Not only that, but the alternator, being a current source just like your battery, needs to have identical outputs, otherwise your total output, (if you were to add a 70A) will be a grand total of 140A - 70A each... Power supplies (alternators, batteries, AC-DC power convertors, WHATEVER it is...) won't know that one is rated higher current than the other one... Once the 70A is reached, the lower current one will crap out, frying itself, trying to keep up with the 130A one.

-------------
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."




Posted By: jmelton86
Date Posted: November 29, 2007 at 10:59 PM
It'll work if he's only charging the sound system with the aux alternator, won't it?

-------------
2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001




Posted By: aznboi3644
Date Posted: November 29, 2007 at 11:43 PM
70 amp alt is nowhere near enough to sustain a +200 amp draw system




Posted By: jmelton86
Date Posted: November 29, 2007 at 11:48 PM

True. True. Don't know what I was thinking, if I was at all!!



-------------
2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001





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