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View Poll Results: What size alt

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  • 200a small case(charges at 750rpms)

    1 16.67%
  • 200a large case(charges at 600rpms)

    3 50.00%
  • 250a large case

    2 33.33%
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Reload Thread: Alt Amperage size?

  1. #1
    bamaboy's Avatar
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    Alt Amperage size?

    alright, i need a new alt, because just listening to songs on my computer and listening to them in my vehicle, i can tell the bass goes up and down in my vehicle, its loud then it goes soft, then i change songs and then bass hits its loud and goes back soft, it dosent do it on my computer so its my electrical, and it didnt do it when i installed my new batt untill the batt ran out of its fresh juice and my alt cant charge it back to where it was, so ima get a new alt

    now what size alt
    1: 200a small case alt (starts charging at about 750rpms)
    2: 200a large case (starts charging at 600rpms)
    3:250a large case
    there is about a 30-40$ difference betweeneach one give or take a few$$$

    i need to power my Power acoustik a3000db(i need about 1800 or so watts out of it) and my pa ov2-400(i need 70-80 watts out of this x2) and all my other electrical things in my vehicle

    what size?




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  2. #2
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    Re: Alt Amperage size?

    200 should be fine



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    Re: Alt Amperage size?

    biggest you can afford...




  4. #4
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    Re: Alt Amperage size?

    Well, i can get any of them, but i just dont want to spend too much, i want one that does enough to get job done and not dim lights and make the bass fade like mine does now, and starts charging right when i crank upi read in instruction manual, the amp pulls a max of 180a i think dont remember, and the little amps pulls not many, but i want to have extra room for other stuff to run too, will 200a be enough?




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    Re: Alt Amperage size?

    my set up is smaller but ill bet my alt is alot worse than yours is now lol i get no dimmage. my amp can draw as much as my alt puts out too. id do the big 3 then do an alt



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  6. #6
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    Re: Alt Amperage size?

    I would go for the one with the highest charging voltage when sitting at a stop light because that is where all the aggravations of low voltage and dimming happen (and unfortunatly a stop light is where a car sits most of the time).




  7. #7
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    Re: Alt Amperage size?

    ima try to do big three when i install a new alt if i get one




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    Re: Alt Amperage size?

    takes like 30 minutes it isnt that hard lord knows im no master mechanic cost you 20 bucks for terminal rings and wire maybe more since you wanna probably use 0 gauge i used 4 gauge made a huge improvement over the 10 and 12 gauge in mine lol alt to battery was only a six guage battery to chassis ground was 10 guage factory at tops rest was 6 guage



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  9. #9
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    Re: Alt Amperage size?

    well i have 3 grounds, one goes to engine, one to chassis, and one goes to something but they are all different sizes, my batt to alt looks like 6ga also kinda, i would do it but i dont know if i can get to the one on the engine, its pretty good ways down there, butalt to batt should be easy and 2 of the grounds should be easy, but dont know about engine one, do u have to do all of the big three or big 4 in my case? how about the Big 2?

    explain to me exactly what i need to do, i know pretty much just tell me exactly what to do

    bat to alt
    and some grounds




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  10. #10
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    Re: Alt Amperage size?

    i replaced alt to battery but other than that you just make a second run to about the same locations with the larger wire. my voltage went up to 14.4 car on and batterry rests at 13.6 since i did this used to rest at 12.4 up to 13.6 with the truck on lol also found my engine noise is my stinking belt tensioner



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    Re: Alt Amperage size?

    u only did alt to battery is that what you are saying?




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  12. #12
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    Re: Alt Amperage size?

    replaced but ran the other 2 in conjunction with the factory wires



    Sony Mobile ES C-90 Audison Bit-One
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  13. #13
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    Re: Alt Amperage size?

    I voted for 200 amp in the large case because the sooner than thing kicks on the better.



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  14. #14
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    Re: Alt Amperage size?

    not 250a thankls for input man
    Last edited by bamaboy; 07-12-2005 at 12:33 AM.




    04 Explorer
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    T6004
    T4002
    T40001bd
    Hertz MLK-2 running Active
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    Summer 09' Build...Operation:Pull Wall out, put new subs in DONE!
    Build
    Photobucket
    now with video

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