300 Amp Alternator - Where to find?

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Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=65080
Printed Date: July 14, 2025 at 9:21 AM

Topic: 300 Amp Alternator - Where to find?

Posted By: notorious_lou
Subject: 300 Amp Alternator - Where to find?
Date Posted: October 26, 2005 at 9:41 PM

I have 2 quad voice coil KOVE Armageddon Subs perfectly capable of handling 4000 w RMS each and 4 Earthquake 5000 to run them . I am in a Ford Expedition and I need a 300 amp alternator ot provide constant power. Where can I get one of these and what brand should I consider. All sugestions welcomed.

Replies:

Posted By: dwarren
Date Posted: October 26, 2005 at 9:50 PM

How about this one

https://cgi.ebay.com/ebaymotors/220-amp-Iraggi-Alternator-97-03-Ford-Lincoln-Mercury_W0QQcmdZViewItemQQcategoryZ33573QQitemZ7955202438QQrdZ1

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Posted By: notorious_lou
Date Posted: October 26, 2005 at 9:56 PM

Would this be sufficient enough to run a daily system like this and alos the SUV's regular functions?

Posted By: dwarren
Date Posted: October 26, 2005 at 10:07 PM

At this point, this probably is going to be the biggest alt. you are going to find. However there are some companies that build custom alternators. They are going to be costly and you are going to pay a high price for shipping too. There also is the option of getting a non vehicle specific alternator, but custom brakets and mounting will ensue. It costs a lot to have a lot of power.

ohio generators is one, mean green is another. There are many discussions on this site about what you have asked, I suggest you do a search here using alternator as your key word.

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Posted By: notorious_lou
Date Posted: October 26, 2005 at 11:09 PM

Thanks - I appreciate the help and assistance

Posted By: jeffchilcott
Date Posted: October 26, 2005 at 11:11 PM

You could always run a dual alternator setup....gets a little tricky in a honda CRX, but you have plenty of room in that explorer! get on it

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2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR
2007 USACI World Champion
2007 World Record
2006 USACI Finals 2nd Place

Posted By: notorious_lou
Date Posted: October 27, 2005 at 6:58 AM

I never thought about that - thanks man. But what amperage would I run each one at?

Posted By: speedwayaudio1
Date Posted: October 27, 2005 at 7:01 AM

Stinger makes a 325 amp alt.

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Big Dave

Posted By: Alpine Guy
Date Posted: October 27, 2005 at 10:53 AM

www.mechman.com part number 20-325-63G-1G ($624.00) rated @ 225Amps "HOT" (270Amps "COLD")

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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.