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    Re: front to rear neg. wire runs ????'s

    Quote Originally Posted by jockhater2 View Post
    I ran 3 runs of positive and 3 runs of negative.
    why. because @mylows10 ; said it's what everyone at competitions do.
    Just for a quick reference.

    That bold part...do not ever trust. 99% of what many of use have done or will do in the lanes should not be done for daily.

    I'm not saying this is the case with the wiring, just the general idea of if they do it in the lanes it's ok for daily thought process.







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    Re: front to rear neg. wire runs ????'s

    Quote Originally Posted by pro-rabbit View Post
    Just for a quick reference.

    That bold part...do not ever trust. 99% of what many of use have done or will do in the lanes should not be done for daily.

    I'm not saying this is the case with the wiring, just the general idea of if they do it in the lanes it's ok for daily thought process.
    What, you mean running 9000 watts to one 10" and having 6 batteries with 200 feet of unfused 1/0 isn't ok for daily?




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  4. #48
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    Re: front to rear neg. wire runs ????'s

    Quote Originally Posted by tommyk90 View Post
    What, you mean running 9000 watts to one 10" and having 6 batteries with 200 feet of unfused 1/0 isn't ok for daily?
    Depends, how good is your insurance? lol

    Oh, and don't forget about running the amp at .0001 ohm with rise to .001 and clipping at about 40%.




  5. #49
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    Re: front to rear neg. wire runs ????'s

    Quote Originally Posted by pro-rabbit View Post
    Depends, how good is your insurance? lol
    *reads over policy*




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    Re: front to rear neg. wire runs ????'s

    Quote Originally Posted by tommyk90 View Post
    As stated, comparing a vehicle to heavy equipment is not even in the same league. One of the main reasons being that the frames on those vehicles are SUBSTANTIALLY thicker and larger than a normal vehicle. Thus they are built to handle the current. And thats why I also stated that if you have a full frame vehicle with upgraded underhood wiring then most likely a direct negative lead isn't necessary. But for unibody cars, which is a lot of them, chances are good that a full 1/0 run from the alternator to the rear can help. This is, of course, if the other criteria are met.

    People who have massive banks of batts in the back aren't going to benefit as much, if at all, from upgraded wiring because a majority of their capacity is coming from the rear bank and not from the alt or front battery.

    When I mean "load a ground", I mean that you have to actually pull current through the material in order to determine if it's a sufficient ground for the equipment you are trying to run. Just because the continuity is low doesn't mean that it's capable of handling the "load" you want to put on it.

    On top of that, the equipment you are trying to run will also react differently. On heavy equipment you are running generators or pumps or other industrial machinery and electronics built ridiculously tough to handle the environment. In a vehicle we are running sensitive electronics that can completely burn up if you drop the voltage too low or send a bad signal. I've personally had amps go into protect (luckily) because of a bad ground that was sufficient for the amp I was running previously.

    I don't run a chassis ground in my daily driver and that setup is capable of 3kw. Direct 1/0 leads from the front battery/alternator to the rear batteries. Then again I come from an SPL competition background where every tenth (of a volt and of a dB) counts, so I might do things a little differently than your average consumer.

    FYI, what do YOU think the originating ground point is? HINT: It's not the chassis. The chassis is just a medium for the battery/alternator, which is why the "shorter the better" ground theory is just a myth. People who add wiring most likely aren't going to gain any voltage if what they had before was sufficient. What they are trying to gain is CAPACITY. If you have a 300 amp alt up front along with a good size battery, one long run of 1/0 isn't going to handle that much current without resistance. This is why multiple runs benefit those people. They aren't going for a voltage increase. I can run one run of 8 gauge and have the same voltage as my 2 runs of 1/0.

    There are people on both sides of the fence here. Ones that gained (quite a lot in some cases) and ones that didn't. I'm under the "more is better" group. It really all just boils down to the vehicle, equipment and the person hooking everything up.

    Summary: If you have the money, do it. It certainly won't hurt.
    sorry man, but this is full of technical fail. but to each, his own



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    Re: front to rear neg. wire runs ????'s

    Quote Originally Posted by tommyk90 View Post
    *reads over policy*
    im gonna have a 300 amp alt up front along with a optima blutop, and 4 batcap 3ks or 4ks in the rear. running 8krms. my jeep is a unibody. what is the best wiring option for myself?



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  8. #52
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    Re: front to rear neg. wire runs ????'s

    Quote Originally Posted by dumpbeast86 View Post
    sorry man, but this is full of technical fail. but to each, his own
    Please elaborate. I'm all for learning something new. I took the time to post up what I know, you can do the same. That's how others can learn.

    What part do you not agree with? What are your facts to back that up?

    You can't just say "you're wrong" without at least divulging a little technical info.




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  9. #53
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    Re: front to rear neg. wire runs ????'s

    Quote Originally Posted by B2WJ4.7 View Post
    im gonna have a 300 amp alt up front along with a optima blutop, and 4 batcap 3ks or 4ks in the rear. running 8krms. my jeep is a unibody. what is the best wiring option for myself?
    Well, how far are you willing to go? It's better to have too much than not enough.

    I'd start with 2 runs of 1/0 for positive, 1 run for negative, 1 chassis ground in back and upgrade all the underhood wiring. That's a good amount of capacity.




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  10. #54
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    Re: front to rear neg. wire runs ????'s

    Quote Originally Posted by tommyk90 View Post
    Well, how far are you willing to go? It's better to have too much than not enough.

    I'd start with 2 runs of 1/0 for positive, 1 run for negative, 1 chassis ground in back and upgrade all the underhood wiring. That's a good amount of capacity.
    i was gonna do 3 runs of pos. but i suppose i could just do 2 runs pos and 2 runs neg and 2 chassis grounds in the rear. all stock wiring is upgraded already.



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    Re: front to rear neg. wire runs ????'s

    Quote Originally Posted by B2WJ4.7 View Post
    i was gonna do 3 runs of pos. but i suppose i could just do 2 runs pos and 2 runs neg and 2 chassis grounds in the rear. all stock wiring is upgraded already.
    Hey, the more the merrier. But you want to have equal capacity in both directions so you don't have a bottleneck somewhere. You have a good amount of battery power in the back so 2 runs of positive is pretty stout. Having 3 runs of positive with only 1 negative and then chassis grounds is a little lopsided, especially on a unibody car.




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  12. #56
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    Re: front to rear neg. wire runs ????'s

    Quote Originally Posted by tommyk90 View Post
    Hey, the more the merrier. But you want to have equal capacity in both directions so you don't have a bottleneck somewhere. You have a good amount of battery power in the back so 2 runs of positive is pretty stout. Having 3 runs of positive with only 1 negative and then chassis grounds is a little lopsided, especially on a unibody car.

    ya im just gonna do 2 runs for everything. thanks for the help man, appriciate it.



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    Re: front to rear neg. wire runs ????'s

    I have to agree with tommyk until disproved.




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    Re: front to rear neg. wire runs ????'s

    Quote Originally Posted by mlstrass View Post
    You had other issues if you gained that much on a burp, especially with a batt bank in the rear.

    My last car had 1 run of 1/0 POS to the back and 12 batts in the rear. I went to 4 runs of 1/0 and gained .1v at the rear and zero on the meter.
    cool story



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    Re: front to rear neg. wire runs ????'s

    Quote Originally Posted by B2WJ4.7 View Post
    ya im just gonna do 2 runs for everything. thanks for the help man, appriciate it.
    overkill it. That is what I did. I only needed 2 runs for 5k.
    But I did 3. in case I ever decide to up power. i don't have to tear the interior apart again.

    Overkill is always better



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    Re: front to rear neg. wire runs ????'s

    Quote Originally Posted by Chriszle View Post
    I have to agree with tommyk until disproved.

    agreed, ill take tommyk's advise over some newbs anyday. until other proof is brought to the table.



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