I am no expert at all but from what i gathered on this thread it appears that putting a fuse on the wire from the battery's positive terminal to the Alternator WILL NOT affect anything ASSUMING you leave your ORIGINAL factory installed wire from the battery to the alternator.The other interesting thing they said was do NOT fuse that wire. I confirmed this as well, DO NOT fuse this wire because if for some reason it does indeed blow, the alternator will no longer see the battery and think that it's dead, so it will kick into high gear and stay that way until it burns up because it will never see that battery again until you've changed that fuse, thus leaving you with a dead battery and a burnt out alternator.
get rid of the stock wire from the alternator to the fuse box if you are going high output. run a 1/0 or 2/0 battery wire to the starter motor,then use the starter lug to attach your heavy wire from the alternator. good connection point.Here is my ? about the wire that runs from the batt to the alt?This is on a 94 civic
Do I take away the factory wire that runs from the fusebox to the alt?
I'm gonna use 1/0 gauge wire from the batt to the alt.
I just run the wire directly to the alt from the batt terminal?
See the civic has a little wire that runs from the fuse box to the alt, there is a wire that runs from the batt to the fuse box so i'm just trying to figure out what the deal is.
Any help would be nice if you need a picture of what I'm talking about let me know.
well i was saying to run it to the starter because it's easy to add the wire to the starter lug, then it will connect right to your battery through the terminal. this way if you have to add an extra wire it's eaisier then trying to add it to the battery terminal. it also looks a lot cleaner.I have never changed my starter wire size and I run 13batteries & 20,000 watts. Why is the starter a better point? Why is from the alt to the starter to the battery better then straight from the alternator to the battery? You have me confused please explain more.
Sorry I'm not sure about the starter re-route. Why wouldn't he just upgrade his alt to batt wire. All other wires will see the same thing regardless where its routed if his fuse box is from the battery or the alternator it will read the same. It might be safer from the battery though. Bail the line from fuse box if something don't work you might route it to the battery.
As it may have a separate purpose.
um the factory fused it for a reason, also the reason a lot of cars have fusible links,you may have a fried alternator but you won't have a burned car. i've worked with automotive electricity for twenty years as a serious hobby and sometimes profession,and thats the stupidest thing i've ever heard. that factory fuse or link is there to keep a dead short in the alternator from setting the battery cable to it on fire, screw the alternator,if that link or fuse goes you've got worse problems.Mine is being installed in the morning. I bought a 180a from Ohio General and they told me more than once, upgrade to the largest size of cable that you can for everything more or less EXCEPT the Alt to Batt Pos. They told me, which I confirmed multiple times, on a short run, 4awg (at least for upwards of 200a) is plenty and ideal; they don't recommend larger than that in that location because the size of the post on the alternator is too small to bind to the larger wire; ergo because of the size difference, the post on the alt heats up too much and can overheat it. That was their recommendation and I'm going to have the shop that is doing it for me talk to them and confirm with a detailed description of my specific engine.
The other interesting thing they said was do NOT fuse that wire. I confirmed this as well, DO NOT fuse this wire because if for some reason it does indeed blow, the alternator will no longer see the battery and think that it's dead, so it will kick into high gear and stay that way until it burns up because it will never see that battery again until you've changed that fuse, thus leaving you with a dead battery and a burnt out alternator.
what are these guys smoking? you crimp a terminal on end of the two gauge cable that fits the alternator post,the alternator isn't going to overheat because you used a larger size wire, the wire is not going to make the alternator put out more amps then it's made for, the terminal on the alternator is designed for the amps it can put out, the wire size has nothing to do with it. a larger wire has less resistence then a smaller wire,therefor it heats up less not more. these guys need to go back to school to lear basic electrical theory, everytime i hear someone tell people this BS it makes me want to start an electrical installers school or something. reminds me of the guy who said i couldn't install power door locks in my 86,because it didn't have the "computer" for them. what a load of shit.a short run, 4awg (at least for upwards of 200a) is plenty and ideal; they don't recommend larger than that in that location because the size of the post on the alternator is too small to bind to the larger wire; ergo because of the size difference, the post on the alt heats up too much and can overheat it.
you'll be hardpressed to find someone who can even build a 400amp alternator for that particular vehicle....i have nissan maxima 2000engine:VQ30DE
i need ~400 amp alternator for my car
what do you recommend me??
plz help me!
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