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Reload Thread: WTB H.O Alt for GM 3800 series 3 engine (07 grand Prix 3.8l V6)

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    WTB H.O Alt for GM 3800 series 3 engine (07 grand Prix 3.8l V6)

    I am looking at buying a new or used H.O alternator. Right now im fine with my stock but I think I want to upgrade at least to a 200 amp one. Bigger is always better. Price range depends on alt. Will do ~1 per amp for a used and ~1.25 an amp new, these are just ballpark prices to show what im looking for.

    Please if you know a good place to get them or can put me in touch with someone I would apretiate it. if you have something smaller I still may be interested if the price is right.







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    Re: WTB H.O Alt for GM 3800 series 3 engine (07 grand Prix 3.8l V6)

    i bought my alt from powerbastards and it works perfect 220 amps for my 08 grand prix




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    Re: WTB H.O Alt for GM 3800 series 3 engine (07 grand Prix 3.8l V6)

    Look up motorcityreman on ebay.


    Try looking at a cs144 alt from a mid-late 90s deville without heated windshield, you can get alts for those that will do over 200a at idle.




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    Re: WTB H.O Alt for GM 3800 series 3 engine (07 grand Prix 3.8l V6)

    Quote Originally Posted by mclerico83 View Post
    i bought my alt from powerbastards and it works perfect 220 amps for my 08 grand prix
    link to where you got it? Is it proven?




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    Re: WTB H.O Alt for GM 3800 series 3 engine (07 grand Prix 3.8l V6)

    High Output Alternators and Accessories | PowerBastards.com

    call them, its not on the website but i have had it for 6 months no problems




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    Re: WTB H.O Alt for GM 3800 series 3 engine (07 grand Prix 3.8l V6)

    Quote Originally Posted by DrChronic View Post
    Look up motorcityreman on ebay.


    Try looking at a cs144 alt from a mid-late 90s deville without heated windshield, you can get alts for those that will do over 200a at idle.
    ****, i wish i would have seen this thread before i bought my alternator.




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    Re: WTB H.O Alt for GM 3800 series 3 engine (07 grand Prix 3.8l V6)





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    Re: WTB H.O Alt for GM 3800 series 3 engine (07 grand Prix 3.8l V6)

    What did you pay for it? full cost? Did it come with everything you need to upgrade?




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    Re: WTB H.O Alt for GM 3800 series 3 engine (07 grand Prix 3.8l V6)

    yea when i bought it it was 289 it went up a little its a direct bolt on just change the alternator same casing, only thing you need is to upgrade the big 3




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    Re: WTB H.O Alt for GM 3800 series 3 engine (07 grand Prix 3.8l V6)

    already have the big 3 done. Did you notice a difference at idle? I got a 165 AH battery in the back and i just want to beef up the alt so i have a sound electrical. Did it come with a birthsheet? Wondering how it performs in low rpms.




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    Re: WTB H.O Alt for GM 3800 series 3 engine (07 grand Prix 3.8l V6)




    feedback thread; http://www.caraudio.com/forum/showthread.php?t=385110

    References: Mike465, Team H&K, Joe00es , Baron1124, lil_italy773 , rockintaurus, mazzasec, gorrilajoe, f150john, blaze383, ridinhi, spitfire3088, tacovic, darenE46, toolfan91. cd5661

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    Re: WTB H.O Alt for GM 3800 series 3 engine (07 grand Prix 3.8l V6)

    will it fit the 3.8l engine? what does it do power wise, and at idle.




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    Re: WTB H.O Alt for GM 3800 series 3 engine (07 grand Prix 3.8l V6)

    I'm not sure what all it will fit but the cases looks the same. I bought it for my 2001 pontiac with a 3.4l and the car was wrecked before I could install it. As far as what it does at idle I know Excessive amperage are designed to perform well. I beleive it puts out 250 amps max.



    feedback thread; http://www.caraudio.com/forum/showthread.php?t=385110

    References: Mike465, Team H&K, Joe00es , Baron1124, lil_italy773 , rockintaurus, mazzasec, gorrilajoe, f150john, blaze383, ridinhi, spitfire3088, tacovic, darenE46, toolfan91. cd5661

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    Re: WTB H.O Alt for GM 3800 series 3 engine (07 grand Prix 3.8l V6)

    got the model number, i will call excessive and find out.




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    Re: WTB H.O Alt for GM 3800 series 3 engine (07 grand Prix 3.8l V6)

    bump ND THE 3.4l engine alt wont fit.




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