Help!

[Anonymous 10+ year member]

I just got my 4 15's installed in a good ported box. However i am having trouble with my voltage. I have 2 Viper 1200's and a Viper 200.4 pushing my 4 Orion P Series 15's. When i am sitting at idle and i have it turned up loud on hard bass it drops to 10.5v. When i start to move and my RPM's go up i get around 12v. The vehicle is a 2004 Durango i have had the big 3 done and I have a Exide/Rockford battery that is 1100 amps and my stock alt which is 136. Do i need a new alt. And if so should i get one HO alt or keep the stock alt for the car and buy another one just to power my system? If i need an alt please suggest a place that can build an alt for a 2004 Durango, i have called pretty much all the websites i could find and the only place that did it for under $700 was Excessive Amperage and i have been hearing some bad reviews about their alts lately

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[Anonymous 10+ year member]

I know some one can help me with this.

 

[dkguitarist 5,000+ posts]

buy a ho alt or run a dual alt setup. also another battery just to play you're system.

 

[wilzyx 5,000+ posts]

a good 200-250 amp HO alternator should do fine for you. Iraggi alternators are supposed to be pretty good, you should contact him and have him build you one.

 

[Anonymous 10+ year member]

If i got a 200A alt would that do it. Because i already have an 1100 amp batt and the big 3 has been done down to 2/0(that is the largest the shop had) Oh i also need suggestions of where i can get an alt that works in my truck because most places do not want to build an alt for my truck, it can not be rewound. How do I get in touch with Iraggi and get some info