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Thread: Bypassing water

  1. #1
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    Talking Bypassing water

    Let's put our heads together on this you GPR people. I'm saying people because believe it or not there are ladies that ride too. I should know, I have one that's hard core into riding. Anyway, heres the question:

    What is the best way to bypass water on a stock exhaust system to maximize HP, and overall performance gains?

    I'm not refering to the Jetworks mods, I'm looking to dump water completely, not supress it and dump it in the same location eventually.


  2. #2
    MR. SCOVILLE UNIT SUCKMYWAKE's Avatar
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    some people dump the #3 head water overboard. i do not. remember the factory exhaust is a fine tuned component. change things around too much and you will lose power. i keep the stock system pretty much stock for now. i didnt help you one bit, did i?

  3. #3
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    Wink Dumping Cylinder #3

    What kind of a power gain are we talking about? Is it noticable for someone that has done this mod?

    I'd like to try it on my '04 GP1300R custom Stage 2 riva kit.

    What kind of gains are we talking about in HP, MPH or compression / overall performance?

    Anyone that can see this Thread that has done this on there GPR's please input into this thread and see what kind of numbers we can come up with on this one.

  4. #4
    mrbtd's Avatar
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    Keep in mind the water is helping you make HP.

  5. #5
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    Lightbulb reply

    That's true, but if you have too much going through your stock exhaust your accually losing what you want to gain.

  6. #6
    dhoad's Avatar
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    bypass?

    Help me out here, what is the system pressure supposed to be?

    I believe Lowell is working on a pressure relief valve that would dump water overboard at higher pressure/high rpm (not sure what psi, but would guess we are talking 25lbs). I think it would operate similar to a blowoff valve and reduce pressure prior to entering the system.
    any idea what the gains in hp would be?

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