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Thread: Rpm's too high

  1. #1

    Rpm's too high

    Recently did some mods , its at 7400 rpm's, with the stock prop. Is that ok. Dont plan leaving like that but i dont have the heads yet so i havent put the prop. Is it safe to ride like that?


  2. #2
    THE PLATE MAN JIM'S PERFORMANCE's Avatar
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    Quote Originally Posted by GPR View Post
    Recently did some mods , its at 7400 rpm's, with the stock prop. Is that ok. Dont plan leaving like that but i dont have the heads yet so i havent put the prop. Is it safe to ride like that?
    to high need to get them down a bit.

  3. #3
    Is it bad to ride like that?

  4. #4
    THE PLATE MAN JIM'S PERFORMANCE's Avatar
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    Quote Originally Posted by GPR View Post
    Is it bad to ride like that?
    you will be fine till you get them down.

  5. #5
    Thanx jim, just trying to be on the safe side. i was impressed it went 73 on a stock prop

  6. #6
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    Quote Originally Posted by GPR View Post
    Thanx jim, just trying to be on the safe side. i was impressed it went 73 on a stock prop
    thats gotta be a record on a stock prop

  7. #7
    The ski has d-plate/open tb's/reeds/reinforcement/800 grate/ good riva plate/ ff/ sealed shoe/ prea-mix. fast till 70, from there on it takes time.

  8. #8
    What #'s should I expect with the head milled and a 14/21.5

  9. #9

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    You should be in the 75-78mph range. I spun a 14/22 from Impros 7200rpms at 77mph+ in the summer heat with your same mods plus a 3 degree key.

  10. #10
    Iam hoping to be in the 76's but 77 is not bad at all Ron. Oem head, what compression?

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