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Wiring, Electrical & Installation
Electrical problem has me stumped! HELP!!!
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<blockquote data-quote="DidUHearThat?" data-source="post: 6720923" data-attributes="member: 594758"><p>No. Your amp alone uses 120 - 150 amps of power on deep bass notes when cranked, not all the time, but when it peaks it draws a lot for brief moments. Your meter is probalby not fast enough to read the quick dips in power.</p><p></p><p>Your 120 alt does not really put out 120 amps except at high rmps, not at idle. Idle is probalby near 50%- 60%.</p><p></p><p>Your car needs alot of those amps too. They put in a 120 amp alt because your car needs that much. You don't have 120 amps of spare power waiting for a giant amplifier to be plugged in.</p><p></p><p>So if your car's electrical is drawing 80 -120 amps, your audio system is drawing 80 - 120 amps. That's 160 - 240 amps of potential draw down a 4 gauge factory wire (~120 amps max), while your alt is normally only putting out 60 - 70 amps at idle. If you look at it that way you can see why your dimming and stalling.</p><p></p><p>Solution: bigger or second alternator, Big 3 in zero or you can probably get by with an additional 4 gauge on top of the factory 4 gauge.</p><p></p><p>Before I even opened this thread I already knew this was your problem just from the title. Eveybody wants big amps, but doesn't understand thier electrical systems are not designed to handle them.</p></blockquote><p></p>
[QUOTE="DidUHearThat?, post: 6720923, member: 594758"] No. Your amp alone uses 120 - 150 amps of power on deep bass notes when cranked, not all the time, but when it peaks it draws a lot for brief moments. Your meter is probalby not fast enough to read the quick dips in power. Your 120 alt does not really put out 120 amps except at high rmps, not at idle. Idle is probalby near 50%- 60%. Your car needs alot of those amps too. They put in a 120 amp alt because your car needs that much. You don't have 120 amps of spare power waiting for a giant amplifier to be plugged in. So if your car's electrical is drawing 80 -120 amps, your audio system is drawing 80 - 120 amps. That's 160 - 240 amps of potential draw down a 4 gauge factory wire (~120 amps max), while your alt is normally only putting out 60 - 70 amps at idle. If you look at it that way you can see why your dimming and stalling. Solution: bigger or second alternator, Big 3 in zero or you can probably get by with an additional 4 gauge on top of the factory 4 gauge. Before I even opened this thread I already knew this was your problem just from the title. Eveybody wants big amps, but doesn't understand thier electrical systems are not designed to handle them. [/QUOTE]
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Electrical problem has me stumped! HELP!!!
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