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Official CarAudio.com Big 3 Thread
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<blockquote data-quote="McIntosh" data-source="post: 5766521" data-attributes="member: 605496"><p>[quote name=johnecon2001;1681655Replacing/adding larger wire to these three critical spots can reduce or rid your electrical system of dimming and voltage drops. Overall' date=' giving your charging system a larger surface area to travel over, will stabilize power and relieve strain on the alternator and battery.</p><p></p><p>(continued in next post)</p></blockquote><p></p><p>While some of this is true (the first sentence), the rest is not. Splain to me how requiring more current out of both your battery and alternator will "relieve strain" on them. You're taxing them more, not "relieving strain". I wonder how many stock alternators fried prematurely because of this great "mod". This is how those stupid engineers designed it to work: The battery provides a large reservoir of power to start the engine (hence the larger cables to the starter and ground than from the alternator). Once the engine is running, the alternator can provide all necessary power plus more to recharge the battery, less at idle when the battery again assists. The alternator is not sized/designed to provide 100% duty cycle (ie its rated output all the time). They're not designed for powering "large" amplifiers, they're to keep your lights on and your battery charged for the life of your car. If you do the "big 3" without getting a larger alternator you're shooting yourself in the foot. Adding another battery only worsens the situation (unless you only want to use your stereo a percentage of the time and charge the batteries the rest of the time). It should be the "big 4" with a HO alternator added at the same time.</p><p>[/QUOTE]</p>
[QUOTE="McIntosh, post: 5766521, member: 605496"] [quote name=johnecon2001;1681655Replacing/adding larger wire to these three critical spots can reduce or rid your electrical system of dimming and voltage drops. Overall' date=' giving your charging system a larger surface area to travel over, will stabilize power and relieve strain on the alternator and battery. (continued in next post)[/quote] While some of this is true (the first sentence), the rest is not. Splain to me how requiring more current out of both your battery and alternator will "relieve strain" on them. You're taxing them more, not "relieving strain". I wonder how many stock alternators fried prematurely because of this great "mod". This is how those stupid engineers designed it to work: The battery provides a large reservoir of power to start the engine (hence the larger cables to the starter and ground than from the alternator). Once the engine is running, the alternator can provide all necessary power plus more to recharge the battery, less at idle when the battery again assists. The alternator is not sized/designed to provide 100% duty cycle (ie its rated output all the time). They're not designed for powering "large" amplifiers, they're to keep your lights on and your battery charged for the life of your car. If you do the "big 3" without getting a larger alternator you're shooting yourself in the foot. Adding another battery only worsens the situation (unless you only want to use your stereo a percentage of the time and charge the batteries the rest of the time). It should be the "big 4" with a HO alternator added at the same time. [/QUOTE]
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