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  1. #1
    Petty Officer 3rd Class
    Join Date
    Sep 2007
    Location
    Leander TX
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    86

    Default 1977 Johnson - First Trip question - speed

    Hello, Thanks for stoping by.
    I recently purchased my first boat (1977 Johnson 115HP). Today I took it for its first trip on the water. I was very pleased with how the boat performed, but being new to boats I was wondering what to expect from this engine in terms of speed.

    I do not have the TAC working yet
    I did not have GPS but the MPH gauge would show about 42MPH when plaining with trim at full throttle.

    I am just wondering if that is about right, or should I expect more from this engine (indicating I need to do some more tuning?)

    The engine: 115EL775
    Boat: 1077 Ranger Fish and Play - 17 ft (tri hull I think - still a newbie)

    Thanks.
    Roy
    Roy
    1977 Johnson - 115EL775
    1993 Johnson - 150 FastStrike

  2. #2
    Commander
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    Jun 2006
    Location
    Manchester, MO
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    2,453

    Default Re: 1977 Johnson - First Trip question - speed

    42 mph out of a tri hull with a 115 sounds about right to me. If you have a trim feature can probably get a bit more out of it. Does it plane quickly?

  3. #3
    Senior Tech Advisor tashasdaddy's Avatar
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    Nov 2005
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    Jacksonville, Florida
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    51,017

    Default Re: 1977 Johnson - First Trip question - speed

    sounds in the right area.
    FLORIDA GATORS
    TEBOW Country



    Please, NO PM's (Private Messages) regarding boat/engine problems. they will not be answered.
    That is what these forums are for. Post your questions, in the appropriate Forum.

  4. #4
    Petty Officer 3rd Class
    Join Date
    Sep 2007
    Location
    Leander TX
    Posts
    86

    Default Re: 1977 Johnson - First Trip question - speed

    Thanks for the comments guys. It doesnt plain real quick, but within the first 30 sec or so. I just wanted to make sure I was in the ball park. Thanks
    Roy
    1977 Johnson - 115EL775
    1993 Johnson - 150 FastStrike

  5. #5
    Senior Tech Advisor tashasdaddy's Avatar
    Join Date
    Nov 2005
    Location
    Jacksonville, Florida
    Posts
    51,017

    Default Re: 1977 Johnson - First Trip question - speed

    if you have trim and tilt, tuck in completely getting out of the hole, and then trim out, as it goes on plane.
    FLORIDA GATORS
    TEBOW Country



    Please, NO PM's (Private Messages) regarding boat/engine problems. they will not be answered.
    That is what these forums are for. Post your questions, in the appropriate Forum.

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