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Reload Thread: Selecting a HO alternator

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    Selecting a HO alternator

    So i guess im looking for a high output alt for my truck. i have a 2000 chevy silverado with the 5.3 i have 4 RF 10 in P1s and im getting some pretty bad voltage drop. ive already killed one battery and have some alternator whine now too. i had a capacitor but i think that screwed it up so i took it out. they dont do crap. i guess i need something like around 200 amps but id figure id ask you guys. ive seen some of the ebay stuff and heard some reviews. id really like to buy one that isnt going to crap out on me after a month. i dont have much to spend but im willing to save up for something nice. what brands are the best?







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    Re: Selecting a HO alternator

    I use a DCpower enginering alt and i love it. hated the build time but i love the alt. i was gonna run a Excessive Amperage alt but nate was a lil more than i budgeted. both are awesome companies though.




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    Re: Selecting a HO alternator

    can any of you post links? im also interested in adding a high current alt




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    Re: Selecting a HO alternator

    I just got a mechman off a guy on here. Suppose to be pretty decent. Those ebay specials are mostly crap alts that are like bad amps with big numbers.

    A good alt new is gonna cost minimum 400.00 and probably more like 550.00. Dont get fooled into special paint, chrome or powder coating cause that only traps heat which is the culprit in alternator failure.

    Also look into the size of the pully cause in some cases the good alt co's will add a smaller pully to get more rms's out of the alts.



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    Re: Selecting a HO alternator





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    Re: Selecting a HO alternator

    thanks for the help guys. im thinking about selecting the 190 amp OEM high output alt from DC power. id like to say now that i think my alt is going out because i dont even have my radio on and i get voltage drop when i roll my windows up and down... weird




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    Re: Selecting a HO alternator

    have you done the big 3 yet?




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    Re: Selecting a HO alternator

    Quote Originally Posted by double deez View Post
    have you done the big 3 yet?
    yeah definitely do that first.




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    Quote Originally Posted by audioholic View Post
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    Re: Selecting a HO alternator

    i plan to do it the same time i put the alt in.




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    Re: Selecting a HO alternator

    Quote Originally Posted by Guinelle1 View Post
    i plan to do it the same time i put the alt in.
    You really shouldn't need an HO alt for 4 10" P1s, they're like what 150 watts?

    Sounds like your reg alt is junk and a big 3 upgrade should do it..



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    Re: Selecting a HO alternator

    Quote Originally Posted by Vossy View Post
    You really shouldn't need an HO alt for 4 10" P1s, they're like what 150 watts?

    Sounds like your reg alt is junk and a big 3 upgrade should do it..
    yea thats all i have and i also have an amp for my front speakers.




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    Re: Selecting a HO alternator

    so people have had good luck with db electrical?
    The alt for my grand am is on there for 189.00
    it says output at idle is 105
    max is 200 amp at 1200 engine rpm
    isn't that almost the same thing?
    how can it be so cheap?



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    Re: Selecting a HO alternator

    db electrical is that stuff on ebay.. i dont know if i would buy it




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    Re: Selecting a HO alternator

    I got one off eBay for my last car from "maniac motors" They were fast and helpful on the phone and the alternator performed well for the price (pretty much the cost of OEM one at the part store). I use Excessive Amperage now and that's working nicely as well. Nathan was also very helpful and did me right.

    My .02, there's a half dozen companies that are popular here. Contact them all and go with whichever one you like and think you'll get the best customer service out of.




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    Re: Selecting a HO alternator

    I would invest in a 2nd battery before an ho alt.



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