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<blockquote data-quote="yacob.naif" data-source="post: 5639212" data-attributes="member: 565696">I used to know this stuff forwards and backwards, but i&#039;ve been out of the loop, and trying to figure it out again.In a car&#039;s electrical system, is the ultimate point of voltage return the engine block (alternator) or the negative terminal of the battery?I&#039;m working on a new project (resurrecting my 01 jetta.)&nbsp; I&#039;m doing the big 3, dropping in a 260A alternator, and relocating the battery to the trunk/replacing it with a kinetik 2400.I need to know if it&#039;d be most beneficial to simply ground the engine block to frame, and the battery to the frame, or run a cable all the way up front, and ground the battery directly to the engine.I think i&#039;m confusing myself.&nbsp; It&#039;s just been so long......&nbsp; I&#039;ve got plenty (70+ feet) of 1/0 here, so i want to do this the best way possible. (I&#039;ve still got a opti4000d that&#039;s never been used, that&#039;s begging to be utilized in a project)Just want to get the rudimentary electrical stuff out of the way at the same time i do my turbo/intake/exhaust/intercooler work, so this summer i can just drop in my amps, and be done.</blockquote>

[QUOTE="yacob.naif, post: 5639212, member: 565696"] I used to know this stuff forwards and backwards, but i've been out of the loop, and trying to figure it out again. In a car's electrical system, is the ultimate point of voltage return the engine block (alternator) or the negative terminal of the battery? I'm working on a new project (resurrecting my 01 jetta.) I'm doing the big 3, dropping in a 260A alternator, and relocating the battery to the trunk/replacing it with a kinetik 2400. I need to know if it'd be most beneficial to simply ground the engine block to frame, and the battery to the frame, or run a cable all the way up front, and ground the battery directly to the engine. I think i'm confusing myself. It's just been so long...... I've got plenty (70+ feet) of 1/0 here, so i want to do this the best way possible. (I've still got a opti4000d that's never been used, that's begging to be utilized in a project) Just want to get the rudimentary electrical stuff out of the way at the same time i do my turbo/intake/exhaust/intercooler work, so this summer i can just drop in my amps, and be done. [/QUOTE]

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