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    big two???

    I was reading something on crutchfield about the vehicles electrical system and one person in the comments section asked about the big three. Then a "Buck Pomerantz" from crutchfield said this....

    Andrew, I believe that most of the benefits of performing "The Big Three" come from just augmenting the two ground wires you mentioned - battery negative-to-car chassis and engine block-to-car chassis. I would be very careful with the alternator-to-battery wire. The circuitry in the alternator includes diodes and current-limiters that you don't want cooked.
    wtf is going on? Do you not need to upgrade the alt wire?







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    Re: big two???

    Alt pos to batt pos. batt neg to alt case. Alt case to engine block or frame.



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    Re: big two???

    Quote Originally Posted by rebelfromva View Post
    Alt pos to batt pos. batt neg to alt case. Alt case to engine block or frame.
    alt case to engine block? its already bolted to the motor

    OP do alt positive to batt positive(install fuse on this wire or 300amps for 0 guage). bat neg to chasis. and motor to chasis.



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    Re: big two???

    Quote Originally Posted by cdc351jeferson View Post
    alt case to engine block? its already bolted to the motor

    OP do alt positive to batt positive(install fuse on this wire or 300amps for 0 guage). bat neg to chasis. and motor to chasis.
    this



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    Re: big two???

    Block to chassis I guess. My stock batt is in trunk and only have the big two. Batt ground and batt pos done.



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    Re: big two???

    So is the guy right or wrong with what he said? He makes it sound like alt pos to batt pos upgrade isn't really needed.

    Maybe for non-competitive systems?




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    Re: big two???

    Quote Originally Posted by Beatin' View Post
    I was reading something on crutchfield about the vehicles electrical system and one person in the comments section asked about the big three. Then a "Buck Pomerantz" from crutchfield said this....



    wtf is going on? Do you not need to upgrade the alt wire?
    With the factory alternator it's more important to upgrade the ground side. Watch this video, skip to a bit after 2 minutes in to where Matt starts talking about engine grounds and such. Hyundai 2012 Sonata Build Part 3 - YouTube




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