Thread: H/O Alternator

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  1. #1 H/O Alternator 
    SE Level Member iceman977th's Avatar
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    Anyone know the best place to get a decent one? Google search has found none for a 2001 GT.

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  2. #2 Re: H/O Alternator 
    Resident ZZP Leg Humper BoostenGTP's Avatar
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    I was wondering the same, I've got a pretty big system and sick of my voltage drops at high SPL levels.


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  3. #3 Re: H/O Alternator 
    The Blue One blueguy's Avatar
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    Pretty sure the CP1 Impala's had H.O. Alt's in them...IIRC are's are what...120's? I think they had a 160.
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  4. #4 Re: H/O Alternator 
    GT Level Member josemolina2008's Avatar
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    Yeah I've been looking for some too, I think I will need one in the not so distant future and I would like to get a H/O one. I've heard Mechman Alts. are good and here is one for the 3800.

    MechMan.com - High Output Alternators, AGM Batteries, 12- & 16-volt Charging Systems for Car Audio
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  5. #5 Re: H/O Alternator 
    SE Level Member iceman977th's Avatar
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    Quote Originally Posted by josemolina2008 View Post
    Yeah I've been looking for some too, I think I will need one in the not so distant future and I would like to get a H/O one. I've heard Mechman Alts. are good and here is one for the 3800.

    MechMan.com - High Output Alternators, AGM Batteries, 12- & 16-volt Charging Systems for Car Audio
    I've heard Mechman, just never found a page for them. May have to invest that...I wonder if they take discounts if you send in your stock alt.

    2001 Grand Prix GT Sedan Silver :: Sony CD-GT54UIW :: Clarion EQS746
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  6. #6 Re: H/O Alternator 
    GT Level Member sic6's Avatar
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    The 9c1 impala's came with a 125 amp alternator. Grand prixs came with either a 105 or the 125 amp alt's.
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  7. #7 Re: H/O Alternator 
    ROLLS ARE FOR BAKERS... whiney's Avatar
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    Quote Originally Posted by iceman977th View Post
    I've heard Mechman, just never found a page for them. May have to invest that...I wonder if they take discounts if you send in your stock alt.
    MechMan - High Output Alternators and More
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  8. #8 Re: H/O Alternator 
    Turbo is the way to go. BillBoost37's Avatar
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    Stock W bodies got a 105amp from everything I've found.
    Stock Bonneville SSEi's got 125amp
    Stock PA Ultras got 125amp (or maybe higher)

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  9. #9 Re: H/O Alternator 
    SE Level Member Wilcopc1's Avatar
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    Y'all may want to look around for Iraggi HO Alternators and Ohio Generators. Both make alternators for the 3.8L and both are expensive. I believe the Iraggi HO is rated for 14.7v @ idle. The Ohio HO, the one I own, is a bit less at idle.

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  10. #10 Re: H/O Alternator 
    GTX Level Member tod1d's Avatar
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    so wish I could sell my alternator from my 1991 Olds 88, it had the series 1 3800, the alt was 200 Amps, thing is still in perfectly good condition, just can't find a buyer

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  11. #11 Re: H/O Alternator 
    SE Level Member iceman977th's Avatar
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    Quote Originally Posted by tod1d View Post
    so wish I could sell my alternator from my 1991 Olds 88, it had the series 1 3800, the alt was 200 Amps, thing is still in perfectly good condition, just can't find a buyer
    Do those fit on the II's?

    2001 Grand Prix GT Sedan Silver :: Sony CD-GT54UIW :: Clarion EQS746
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  12. #12 Re: H/O Alternator 
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    Quote Originally Posted by Wilcopc1 View Post
    Y'all may want to look around for Iraggi HO Alternators and Ohio Generators. Both make alternators for the 3.8L and both are expensive. I believe the Iraggi HO is rated for 14.7v @ idle. The Ohio HO, the one I own, is a bit less at idle.
    is iraggi still in business? He used to sell his stuff on ebay but I didn't see it last i looked into it.
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  13. #13 Re: H/O Alternator 
    GT Level Member josemolina2008's Avatar
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    Yeah I'm pretty sure Iraggi is still in business, but the only one that I've heard of that had them for the 3800 was Mechman for sure.
    GP is gone...
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  14. #14 Re: H/O Alternator 
    GTX Level Member tod1d's Avatar
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    Quote Originally Posted by iceman977th View Post
    Do those fit on the II's?
    it won't fit on the III's so I guess it does not work on the II's either
    I just wish all it would take is a different mounting bracket on the alt then it would work, as it is the thing is much bigger and heavier then the stock alt thats for sure

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