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Upgraded Alternator

Discussion in '2.5 Gen Tundras (2014-2021)' started by reywcms, Feb 1, 2023.

  1. Feb 1, 2023 at 10:21 AM
    #1
    reywcms

    #1
    reywcms [OP] New Member

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    Too many mods to come
    Might be swapping out the oem since I feel it’s on its last leg. Any upgraded beefier units out there for our rigs. I thought I saw a few.
     
    reywcms, Feb 1, 2023
    #1
  2. Feb 1, 2023 at 10:26 AM
    #2
    AZBoatHauler

    #2
    AZBoatHauler SSEM#140/ASCM#3/2ndGenNaysayer/BAF140

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    AZBoatHauler, Feb 1, 2023
    #2
    reywcms[QUOTED][OP] and ColoradoTJ like this.
  3. Feb 1, 2023 at 10:30 AM
    #3
    AZBoatHauler

    #3
    AZBoatHauler SSEM#140/ASCM#3/2ndGenNaysayer/BAF140

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    here is OEM performance curve. Note the RPM scaling in the box on the right side. You’re basically getting 120amp at idle and get to 160-180amps really quick. This is with the Denso 150amp OEM.


    image.jpg
     
    AZBoatHauler, Feb 1, 2023
    #3
    Rocko9999 and reywcms[OP] like this.
  4. Feb 1, 2023 at 10:57 AM
    #4
    MadMaxCanon

    #4
    MadMaxCanon New Member

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    Too many, but not enough....
    It seems a shorter belt would be required for those HD options. I wonder if there is another toyota belt that can be used, or if the stock pulley could be swapped over.
     
    MadMaxCanon, Feb 1, 2023
    #4
    Y0TA PR0 likes this.
  5. Feb 1, 2023 at 11:07 AM
    #5
    AZBoatHauler

    #5
    AZBoatHauler SSEM#140/ASCM#3/2ndGenNaysayer/BAF140

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    I think it’d be within the tolerance of the tensioner but I do see their disclaimer - @snivilous - do you know if S/C folks need to change belts when using the party pulley?
     
    AZBoatHauler, Feb 1, 2023
    #5
  6. Feb 1, 2023 at 11:32 AM
    #6
    snivilous

    #6
    snivilous snivspeedshop.com

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    Since he's already supercharged there's only one belt that's smaller (assuming he isn't using that one). I would go with the smaller supercharger belt if any of the pulleys are smaller than stock.
     
    snivilous, Feb 1, 2023
    #6
    reywcms[OP] and AZBoatHauler[QUOTED] like this.
  7. Feb 1, 2023 at 11:35 AM
    #7
    Chuy!

    #7
    Chuy! New Member

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    Check out bnrparts on eBay to see if they make one fir this gen. They sell high output units at reasonable prices. Going on six years with my 200-amp alt in my Taco. Also got one for daughter’s Corolla. You do need to upgrade the alt power wire, to at least 2awg.
     
    This site contains affiliate links for which the site may be compensated.
    Chuy!, Feb 1, 2023
    #7
  8. Feb 1, 2023 at 12:53 PM
    #8
    APalmTree

    #8
    APalmTree 4x4 SKEPTIC

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    1 or 2... I lost count
    Ask Cruzer, he put a 300 amp (I think) in his truck.
     
    APalmTree, Feb 1, 2023
    #8
  9. Feb 1, 2023 at 12:55 PM
    #9
    AZBoatHauler

    #9
    AZBoatHauler SSEM#140/ASCM#3/2ndGenNaysayer/BAF140

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    AZBoatHauler, Feb 1, 2023
    #9
  10. Feb 1, 2023 at 2:55 PM
    #10
    Cruzer

    #10
    Cruzer Wheeling Full Size

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    Cruzer, Feb 1, 2023
    #10
    2mchfun and reywcms[OP] like this.
  11. Feb 1, 2023 at 2:59 PM
    #11
    reywcms

    #11
    reywcms [OP] New Member

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    Too many mods to come
    Thanks everyone!
     
    reywcms, Feb 1, 2023
    #11
    2mchfun likes this.
  12. Feb 1, 2023 at 3:25 PM
    #12
    MadMaxCanon

    #12
    MadMaxCanon New Member

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    MadMaxCanon, Feb 1, 2023
    #12
    reywcms[OP] likes this.
  13. Feb 1, 2023 at 3:37 PM
    #13
    2mchfun

    #13
    2mchfun Yeah it'll pull it, just don't expect to stop!

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    2mchfun, Feb 1, 2023
    #13
    reywcms[OP] likes this.
  14. Feb 1, 2023 at 4:18 PM
    #14
    Cruzer

    #14
    Cruzer Wheeling Full Size

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    Yup
     
    Cruzer, Feb 1, 2023
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    MadMaxCanon[QUOTED] and 2mchfun like this.
  15. Feb 1, 2023 at 4:19 PM
    #15
    reywcms

    #15
    reywcms [OP] New Member

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    Too many mods to come

    Also any mods to wiring?
     
    reywcms, Feb 1, 2023
    #15
    2mchfun likes this.
  16. Feb 1, 2023 at 4:19 PM
    #16
    Cruzer

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    Cruzer Wheeling Full Size

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    Yeah. Wrote it up somewhere in my build page.
     
    Cruzer, Feb 1, 2023
    #16
    2mchfun[QUOTED] and reywcms[OP] like this.
  17. Feb 1, 2023 at 4:30 PM
    #17
    Rocko9999

    #17
    Rocko9999 New Member

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    I would go OEM. Other than the bearings wearing out fast, they are decent.
     
    Rocko9999, Feb 1, 2023
    #17
  18. Feb 1, 2023 at 4:33 PM
    #18
    texasrho83

    #18
    texasrho83 DGAF#1

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    texasrho83, Feb 1, 2023
    #18
    Saltyhero13, Y0TA PR0 and 2mchfun like this.
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LActrical High Output 300 Amp Alternator For Toyota Tundra Pickup Truck 5.7L 4.6L 07 08 09 10 11 12 13 14 15 16 17 18 19 2007-2019
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