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  1. #1
    somefun's Avatar
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    New Top Speed!!! 73.3 on GPS

    Well guy's I guess I bent the props right!!! They are both running the same RPM's and the same boost. 11.2 with the S3 chargers and the top speed jumped to 73.3 mph... She is running 8400 RPM's or at least I think it is because the tac's only go to 8000. but it looks like it would be about that. So the deal is the Starboard prop is bent to from a 15/20R with 3mm's out of it and the port is the same 15/20R with 1mm put in it. The funny thing is the props new were not true. two blades were way off from the other two. So git that fixed and added some to the port and they are great now. It's weird how you have to add some to one and take 3mm out of the other but now its dead nuts! It has to be something with the hull. I know of at least three other S200's that are the same way....


  2. #2
    Moderator beerdart's Avatar
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  3. #3
    Speed200's Avatar
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    Awesome results. Hey do you notice any driving difference as the rpms are more equal? What about rpms at cruise speed and they closer together now???

  4. #4
    Moderator The Bandit's Avatar
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    Awesome numbers! congrats

  5. #5
    Water Bum Rodneyae's Avatar
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    Good job!!!!

  6. #6
    somefun's Avatar
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    No difference at all... But it's nice to see the boost and RPM's the same at WOT now. Cruise speed is the unchanged.. I highly recommend change the one impeller to make them equal..It was 3mm out of the starboard side and 1mm in the port for me.



    Quote Originally Posted by Speed200 View Post
    Awesome results. Hey do you notice any driving difference as the RPM's are more equal? What about RPM's at cruise speed and they closer together now???

  7. #7
    Speed200's Avatar
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    Good info. Thanks...

  8. #8
    JFizzleJR's Avatar
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    So how many RPMS were you missing on the 1 motor? And, how many RPMS are they both running now? 1 last question: Do you know how much boost you gained after tweaking the prop (enabling you to run higher RPMS)?

    By the way, NICE SPEEDS

  9. #9
    Moderator RX951's Avatar
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    wow ! thats movin'

  10. #10
    somefun's Avatar
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    I was missing about 300 to 350 RPM's on the starboard engine. I gained about 1.5 pounds of boost they are just about the same running 10.9 to 11.2 lbs

    Quote Originally Posted by JFizzleJR View Post
    So how many RPMS were you missing on the 1 motor? And, how many RPMS are they both running now? 1 last question: Do you know how much boost you gained after tweaking the prop (enabling you to run higher RPMS)?

    By the way, NICE SPEEDS

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