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Message: <blockquote data-quote="Drumbc" data-source="post: 8541727" data-attributes="member: 668090"><p>I have a 2003 350z with a custom build in it currently got a 300 amp Ohio gen alternator with 1/0 oversized ofc wire, a decent deep cycle battery under the hood. I'm running a sundown scv 3000 at half ohm on three sundown sa8 v3's and yes they take that power....... my issue is the sundown scv3000 seems to still be eating my electrical...... at idle my voltage rests at 13 will not go up but when driving it runs 14.7 and full tilt on the system only drops it to 13.4 but idling it rests at 13.2 and drops to 12.1...... do I need to add more batteries to have better idling voltage ? That's all I can think of considering I have a 300 amp alt that has tested and produced 317 amps...... all help is appreciated</p></blockquote><p></p>

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