Alt Bracket help

[95 south]

Guys I need a little help. I am running at the moment 2 Rockford Fosgate 2500bdcp amps on my sub stage with a 320 amp DC alt and 3 D3100's in the rear. I have big 3 done and a D2400 under the hood. I still get voltage drops full tilt down into the mid to low 12's. Do you guys know anyone that could make a custom alt bracket for a Infiniti QX56? I want to add a third 2500 but need to get my voltage fixed first.

[jarrius]

You might want to look at how your alt is controlled. I know for a fact my car has a PCM controlled alt so sometimes I have seen me charge at 15v driving and looked again and I'm at 12.5 with my system off just driving down the highway. So you might want to look in to controlling the vtage your self and may be add a couple more d3100's in the back also.

Edit: link

http://www.stevemeadedesigns.com/board/topic/172160-a-list-of-vehicle-manufactures-that-dodont-have-pcm-controlled-alternators/

[95 south]

The alt is fine until I go full tilt. If I am playing my system it normally stays around 13.3-13.9 but when I really wang on it that's when it dips really low.

[jarrius]

I still say check how it's controlled to be on the safe side. But how many runs of 1/0 do you have to your rear bank of betteries?

And to answer your question about dual alt bracket. Also did you try contacting dc power?

http://www.americanprecisiongroup.com/automotive/dual-alternator--ac-bracket/infiniti---nissan/qx56--armada-dual-alternato.html