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  1. #1

    New supercharger wheel

    I have a 15 rxpx 260 stock boost is around 7psi and the ecu limits top speed and boost so my qestion is if i bought a wheel that puts about 13psi would the ecu limit it to stock boost???


  2. #2
    PWC Addict lilman573's Avatar
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    Isn't stock boost of a 260 11psi?!

  3. #3
    No ecu limits it to about 7 unfortunately

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    stuckmoto's Avatar
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    How many hours do you have on it?

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    Branden's Avatar
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    if i am understanding your question correctly, even if you put a charger on the ski that makes 15 psi without removing the limiters in the ski it will still pull boost back. You will have to flash the ski to get rid of that.

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    boost junkie skidoochris's Avatar
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    the ecu just shuts the TB when it hits a limit

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    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by superman5397 View Post
    I have a 15 rxpx 260 stock boost is around 7psi and the ecu limits top speed and boost so my qestion is if i bought a wheel that puts about 13psi would the ecu limit it to stock boost???
    Yes, the ECU would still limit boost and still limit RPM. The popular solution is to reflash your stock ECU with the V-Tech Maptuner
    http://www.4-tecperformance.com/inde...oducts_id=2791

  9. #9
    g550plt's Avatar
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    New supercharger wheel

    What's harder on the engine.. More RPM or more boost? If someone wanted to purchase a new wheel, to make more boost throughout the RPM range, but keep the redline at 8350 would any other mods be needed?

  10. #10
    Sanfish's Avatar
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    Quote Originally Posted by g550plt View Post
    What's harder on the engine.. More RPM or more boost? If someone wanted to purchase a new wheel, to make more boost throughout the RPM range, but keep the redline at 8350 would any other mods be needed?
    They each can be bad for a motor if not done properly. And properly doesn't only mean using good parts.

    In a SC setup, boost is very related to RPM so when someone say they want high boost but at low RPM, they will not get the true advantage a bigger SC will provide. Having said that, if you wanted a bigger SC *and* keep RPM's low, you will need a bigger than normal impeller or L13 cone. The downside to using a big impeller is bottom/midrange isn't going to be as nice as it could be (yet improved). Plus, the more boost, the more important the IC becomes so if you don't plan to upgrade IC when doing a SC upgrade, I vote for higher RPM using an X charger. Don't let a stock X charger wheel fool you, I was able to get 13.6psi out of mine - but you need to spin it.

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