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  1. #1
    chripark's Avatar
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    Time to Mod my GTR 215

    Hi

    I'm now looking at modding my GTR 215, however I do not want to go the whole hog and change charger etc, I was thinking of the following and any advice would be greatly appreciated as I'm a newbie to this modding side of things.

    Vtech Tune 8400 rpm
    4" Air Intake
    Throu Hull Exhaust

    Ideally I want to get past the main restrictors that are on the ski, also I've heard about ride plates??? any info on these please, I have read other threads but got information overload so I thought I'd ask as a new thread.

    Thanks in advance

    Chris


  2. #2
    boost junkie skidoochris's Avatar
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    8400 may be pushing your luck with the stock valve train
    also you may not be able to spin the stock prop that high

  3. #3
    chripark's Avatar
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    ok

    Quote Originally Posted by skidoochris View Post
    8400 may be pushing your luck with the stock valve train
    also you may not be able to spin the stock prop that high
    OK thanks for that, this whole modding thing is a bit too much for me I think , just when I think i know what i want its wrong lol.

    So is a basic Vtech ECU flash less than 8400 rpm then?

    dont really want to mess with the engine itself at the moment.

    sorry bout this.

  4. #4
    boost junkie skidoochris's Avatar
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    no it should be good because you may not spin up high enough to hurt it (with out a prop change)
    IMO stock you may get you near 8300
    with the v-tech you can change the limiter to what ever you want
    so see what your max rpm is on flat water and then set the limit 100 over that

  5. #5
    SuperCharged67's Avatar
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    The only trouble I see when modding a GTR it doesn't appear that much of anything is developed hull wise. It's all engine related.

  6. #6
    I wouldn't change the tune without upgrading valve springs and retainers. Not to mention on a stock charger you won't see the gains with the higher RPMs since you'll be trying to spin higher without the mods to turn the prop to see the gains. If you want reliable just add a 137mm charger or et 127 with injectors and prop. best bet is larger charger, injectors, prop and ext ic

  7. #7
    chripark's Avatar
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    Thanks for the info much appreciated.

  8. #8
    ATNryan's Avatar
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    Quote Originally Posted by RXPTX View Post
    I wouldn't change the tune without upgrading valve springs and retainers. Not to mention on a stock charger you won't see the gains with the higher RPMs since you'll be trying to spin higher without the mods to turn the prop to see the gains. If you want reliable just add a 137mm charger or et 127 with injectors and prop. best bet is larger charger, injectors, prop and ext ic
    He still needs the vtech flash to bypass all the limiters, or else any mod is pretty much worthless.

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  10. #9
    surferd15's Avatar
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    Do a search on my threads...vtech 8400 tune, no valvetrain upgrade, air intake, no thru hull unless you want noise and drill a hole, ride plate is a great mod. No injectors needed with this setup...everyone thinks this 215 has 42s....it has 48s! Same as the 260s etc. But you will see 71-72 possibly 73. Stock prop.

  11. #10
    wotxxxsd's Avatar
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    Once you catch the modding disease the only cure is more mods....

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