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Thread: How big Setback

  1. #1
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    How big Setback

    Hi guys

    im running a Fletcher 199 with a 225 optimax with a hydraulic jackplate.
    Iím about 80mph top speed with a 27p Tempest plus (blueprinted/labbed), but Iím running to flat and canít seem to get it up flying on the back pad.
    any suggestions to ad a bigger setback or what to do?
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  2. #2
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    Put your motor down and measure where your propshaft is in relation the pad

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    The distance from transom to prop shaft or horizontal from prop shaft to buttom?

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    Boat level... propshaft level... distance apart?

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    Sorry but Iím just a stupid demarkian (Denmark) haha
    Distance from red or blue?
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  6. #6
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    Red

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    I just confused cause I’ve got a jackplate and therefore the level from shaft to bottom boat varies ��

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    When I’m going top speed the shaft is about 2 inches under the pad

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    how sound is the hull? Speed hook? 80 is good....... time to get a better hull......

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    The correct setback and height is the secret to a good life.

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    Quote Originally Posted by Dave S View Post
    how sound is the hull? Speed hook? 80 is good....... time to get a better hull......
    What do you mean by “how sound is the hull - speed hook”??

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    Tape a level to the bottom of the pad. Raise or lower the boat on the trailer till it is level. Now, lower the outboard till it is level. Tape a small level to the captivating plate. The one above the propeller where the zink is. Once that's level use a long enough stick to tape to the boats pad and reaches out to the nose of the lower unit. Measure the distance up or down from center of lower unit to bottom of pad. That's how to know where you are with setup


    Patriot Missile

  14. #13
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    if you setback the motor. the motor needs to be raise up. the water leaving the end of the boat raises up in relation to the pad.

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    Thereís no significant pad on that boat. Most of your lift is coming from the lifting strakes. You will never get the boat to only run on the keel/pad, itís too narrow. I donít think you are going to find much more speed. You might try a prop with more bow lift. As for setback, you could probably move the motor back a bit, Iíd try a 4Ē extension between the boat and current plate, itís cheap. The only problem I see is the motor is already mounted quite high on the existing plate, itís putting a lot of torque on the transom. Itís also going the make the transom sit lower in the water and on the first shot itís already precariously low.
    Last edited by mjw930; 03-06-2020 at 07:09 PM.
    Mark

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    How much more speed is the stock lower gonna handle? I'd say without a cone or a sportmaster, your pissing in the wind.

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