Prime Transmission Swap

Discussion in 'Gen 5 Prius Accessories and Modifications' started by Xov’ze, Nov 26, 2025 at 1:21 PM.

  1. Xov’ze

    Xov’ze Member

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    Okay let me start off by acknowledging this is a stupid idea

    What would it take to get a non-plug-in prius up to the 220 HP advertised from the plug-in? I’ve heard the extra ~20 hp comes from a stronger MG2, so could you swap an X/SE transmission into an X/LE to acheive that? Would it be just the transmission swap and ECU tune, or would you need other supporting mods like an X/SE inverter and (god forbid) a plug-in battery?

    i want those juicy plug-in numbers without the added weight of the full plug-in system
     
    #1 Xov’ze, Nov 26, 2025 at 1:21 PM
  2. bisco

    bisco cookie crumbler

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    this is gonna be fun :cool:
    i imagine @black_jmyntrn would have some knowledge
     
    #2 bisco, Nov 26, 2025 at 1:32 PM
  3. Blackat

    Blackat Active Member

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    There's easier ways to get more HP
     
    #3 Blackat, Nov 26, 2025 at 5:18 PM
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  4. BiomedO1

    BiomedO1 Senior Member

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    Sure, swap it out and void your warranty.....:cool:;):censored::whistle:
     
    #4 BiomedO1, Nov 26, 2025 at 6:23 PM
    Last edited: Nov 26, 2025 at 9:27 PM
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  5. KMO

    KMO Senior Member

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    Biggest factor will probably be the bigger battery capable of more current. Next the inverter can output higher voltage - 650V rather than 600V, if I recall correctly.

    It's unclear what mechanical differences there are, but there should be some because the transaxle has a different part designation.
     
    #5 KMO, Nov 27, 2025 at 7:14 AM
  6. Mendel Leisk

    Mendel Leisk MMX GEN III

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    You’re right.
     
    #6 Mendel Leisk, Nov 27, 2025 at 9:35 AM
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  7. fotomoto

    fotomoto Senior Member

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    EV designer dilemma: Power, weight, price. Pick two.
     
    #7 fotomoto, Nov 27, 2025 at 10:32 AM
  8. Xov’ze

    Xov’ze Member

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    Please share
     
    #8 Xov’ze, Nov 28, 2025 at 10:58 AM
  9. bisco

    bisco cookie crumbler

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    trade for tesla?
     
    #9 bisco, Nov 28, 2025 at 1:42 PM
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