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Thread: OMC’s 4-Rotor Wankel Racing Engine - The Real Story

  1. #51
    Sam Cullis Mark75H's Avatar
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    OK, more questions for John ... so, in the beginning there were 4 rotary motors made by stacking 2 snowmobile engines together. There were some motor failures and replacements were worked up. Were the replacement motors made completely from new parts or were existing motors repaired?

    In the end 4 very advanced dedicated 4 rotor motors were put into storage ... were these motors that had been raced or new unraced motors?


    Did the dedicated 4 rotor motors weigh less than the doubled up snowmobile motors?
    Since 1925, about 150 different racing outboards have been made.


  2. #52
    Preserving OMC Heritage LIQUID NIRVANA's Avatar
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    Quote Originally Posted by Mark75H View Post
    OK, more questions for John ... so, in the beginning there were 4 rotary motors made by stacking 2 snowmobile engines together. There were some motor failures and replacements were worked up. Were the replacement motors made completely from new parts or were existing motors repaired?

    In the end 4 very advanced dedicated 4 rotor motors were put into storage ... were these motors that had been raced or new unraced motors?


    Did the dedicated 4 rotor motors weigh less than the doubled up snowmobile motors?
    My understanding was that the boxed engines were the new style no bolt engines. They were unraced & were packed with dyno sheets.

  3. #53
    Sam Cullis Mark75H's Avatar
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    Quote Originally Posted by LIQUID NIRVANA View Post
    My understanding was that the boxed engines were the new style no bolt engines. They were unraced & were packed with dyno sheets.
    I know that is what is implied ... I want John to say so exactly and certainly.
    Since 1925, about 150 different racing outboards have been made.


  4. #54
    Team Member WharfRat's Avatar
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    ok, this is strange, Wayne, in all the other pics it is DEFINATELY Clear Lake, just that first pic ain't cause from that angle you would see Nasa Rd 1 & the bridge & it's all woods. I see pics of the pavilion park & the apartments I used to live in. I be confused

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    Team Member Master Oil Racing Team's Avatar
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    I talked to Scott a little while ago and I told him I was confused myself as I had mentioned in my previous post. I was glad to finally hear from Scott after so many months of him not posting after the hurricane. They were nailed and lost everything but a few possessions. They are living back at Kemah, but not on the water this time.

    Scott...tell us anything you can dredge up about your memories of the Rotaries running at Galveston. I went up into our storage and found some publications with a little info that I will put up later.



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    Preserving OMC Heritage LIQUID NIRVANA's Avatar
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    CLICK ON THE PICTURE & then "FULL SIZE" to make it bigger.







  7. #57
    Preserving OMC Heritage LIQUID NIRVANA's Avatar
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    CLICK ON THE PICTURE & then "FULL SIZE" to make it bigger.



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    Team Member Master Oil Racing Team's Avatar
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    Yesterday it dawned on me that Ann Strang probably had some things to say about the RC's so I looked up some of her Region 7 columns in various issues of Propeller. This one is from the April 1973 issue.

    You have talked about this before some time back John Schubert. I think this would be a good place for your comments about what you remember.
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  9. #59
    Team Member WharfRat's Avatar
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    great talikng to you yesterday Wayne!!

    I actually missed the Galveston race (& was really POed about it at the time) Although I remember getting a patch from it (think Tommy Hathaway brought it back to me) I do remember seeing one run but can't remember where it was but it had to have been on Clear Lake or Baytown even though it might have been just a test session & not a race, don't recall one at Conroe, but it is a possibility

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    Team Member Master Oil Racing Team's Avatar
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    I still have the B&W photos from Clear Lake to post Scott. That might bring back some memories.

    Here is a column from Ann Strang in the June 1973 Propeller.

    Also, Ken...do you have the article on the Wankel from the February 1972 issue of Powerboat to post? If you don't have it let me know.
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