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  1. #11
    Join Date
    Jan 2013
    Location
    east texas
    Boat
    between boats
    Details
    boatless
    Engine(s)
    boatless
    Posts
    60

    Re: Tunnel/pockets on 80's 300's & 340's

    Thanks a million to all for the great information ! I no longer have any concern about the tunnel/pockets.
    Norris

  2. #12
    Join Date
    Nov 2006
    Location
    Shelton, CT
    Boat
    Sea Ray
    Details
    2000 215EC
    Engine(s)
    5.0 EFI Mercruiser Alpha
    Posts
    2,646

    Tunnel/pockets on 80's 300's & 340's

    Quote Originally Posted by norriscathy View Post
    Thanks a million to all for the great information ! I no longer have any concern about the tunnel/pockets.
    Norris
    Here is a pic of the wake being left at cruising speed. This is a 300WE at 3200 rpm and the tabs adjusted slightly down.




    Sent from my iPhone using Tapatalk
    ~Mark~
    "Tide the Knot"
    2000 215EC 5.0 EFI Alpha
    Shelton, CT



  3. #13
    Join Date
    Dec 2008
    Location
    Amity Harbor,NY
    Boat
    searay
    Details
    1988 300 Weekender
    Engine(s)
    Twin 350 Chevy Straight Inboards
    Posts
    227

    Re: Tunnel/pockets on 80's 300's & 340's

    the only issue I notice with the pockets is a little throttle is needed for the engine in reverse to keep the boat from moving forward while pivoting.with both at idle with one forward and one reverse the boat will move forwards and not pivot in its place without a little throttle on the reverse side.not a big deal.just need to get used to it.
    1988 30 Weekender Twin 350 Chevy Inboards

  4. #14
    Join Date
    Apr 2009
    Location
    Oakville ON and Georgian Bay, Ontario
    Boat
    Sea Ray
    Details
    '97 330 Sundancer
    Engine(s)
    2X 454 w/ vDrives
    Posts
    1,242

    Re: Tunnel/pockets on 80's 300's & 340's

    Quote Originally Posted by johngus View Post
    the only issue I notice with the pockets is a little throttle is needed for the engine in reverse to keep the boat from moving forward while pivoting.with both at idle with one forward and one reverse the boat will move forwards and not pivot in its place without a little throttle on the reverse side.not a big deal.just need to get used to it.
    That's more the shape of the props. They are shaped to give more thrust in the forward direction. The more cup in the props, the more pronounced it is. You will notice with inboards is that you have almost no steering in reverese because the rudders are behind the props so in reverse the rudders are basically not in play. You can steer a bit in reverse using the transmissions though by bumping one into forward briefly to swing the bow.
    1997 Sea Ray 330 DA 7.4 carbs vdrives w/2007 Mercury 310 RIB with 8hp Yamaha
    Learning curve:
    1995 Campion Victoria 245 5.7L Bravo 2
    1989 Cadorette Holiday 200 4.3L Alpha

  5. #15
    Join Date
    Jul 2014
    Location
    Chicago IL./Vero Beach, Fl
    Boat
    Sea Ray
    Details
    1970 SRV 180 w 2.5L Mercruiser. 2000 Ford Expedition Eddie Bauer
    Engine(s)
    120HP Mercruiser
    Posts
    201

    Re: Tunnel/pockets on 80's 300's & 340's

    The reason for this design is primarily draft. These models are largely lake boats and are common across the Great Lakes where many areas Michigan UP , Ohio etc water levels vary from year to year and there are plenty shallow waterways.

    This is design was not aimed at open ocean seas. For comparison see sport fisherman hulls at transom and you will find absence of hull pockets in their designs.

  6. #16
    Join Date
    Jan 2011
    Location
    Cleveland, OH
    Boat
    Sea Ray
    Details
    1989 340 Sundancer Raymarine E90W Radar/Chartplotter
    Engine(s)
    Twin 454 Mercruiser 340's
    Posts
    960

    Re: Tunnel/pockets on 80's 300's & 340's

    Quote Originally Posted by El Capitan View Post
    The reason for this design is primarily draft. These models are largely lake boats and are common across the Great Lakes where many areas Michigan UP , Ohio etc water levels vary from year to year and there are plenty shallow waterways.

    This is design was not aimed at open ocean seas. For comparison see sport fisherman hulls at transom and you will find absence of hull pockets in their designs.
    How did you come up with this conclusion? And the lack of prop pockets on sport fisherman hulls(?) in and of its self, does not mean a thing.
    I get the draft part...
    Perhaps 'not primarily aimed'....
    Last edited by northshore; 01-10-2017 at 09:40 AM.
    Laurie and Mike and 'The Boat to be Named Later'

    Proud Member of the Hole in the Water Club

  7. #17
    Join Date
    Oct 2010
    Location
    Bay City, Michigan
    Boat
    1988 268DA SeaRay Sundancer
    Details
    Lowrance electronics, Fishhawk speed-n-temp, Scotty electric downriggers and custom arch
    Engine(s)
    Single big block 454 Mercruiser engine and outdrive.
    Posts
    839

    Re: Tunnel/pockets on 80's 300's & 340's

    Not sure about that conclusion either. Lots of sport fisher hulls have prop pockets.

    I would say the design lends itself well to achieve a shallower draft and possibly keeping a good flow of water around the props to avoid cavitation.


    1988 268DA SeaRay Sundancer
    Powered by a 454 Mercruiser and rigged for fishing the Great Lakes.

    The F/V "Getaway"

    Proud "Charter 20" Member of the "Hole In The Water Club"

  8. #18
    Join Date
    Jul 2014
    Location
    Chicago IL./Vero Beach, Fl
    Boat
    Sea Ray
    Details
    1970 SRV 180 w 2.5L Mercruiser. 2000 Ford Expedition Eddie Bauer
    Engine(s)
    120HP Mercruiser
    Posts
    201

    Re: Tunnel/pockets on 80's 300's & 340's

    Quote Originally Posted by northshore View Post
    How did you come up with this conclusion? And the lack of prop pockets on sport fisherman hulls(?) in and of its self, does not mean a thing.
    I get the draft part...
    Perhaps 'not primarily aimed'....
    Do your own research. You consistent adversarial responses to my posts through out this forum no longer merits my educating you.

    You're a searay bigot a quite full of yourself.

    Fact remains, tunnel hulks are for shallow draft capability. You won't find them on Hatteras, Bertrams etc.

  9. #19
    Join Date
    Jul 2014
    Location
    Chicago IL./Vero Beach, Fl
    Boat
    Sea Ray
    Details
    1970 SRV 180 w 2.5L Mercruiser. 2000 Ford Expedition Eddie Bauer
    Engine(s)
    120HP Mercruiser
    Posts
    201

    Re: Tunnel/pockets on 80's 300's & 340's

    The other reason was more favorable thrust angle

  10. #20
    Join Date
    Jan 2008
    Location
    Pacific Northwest
    Boat
    Searay
    Details
    1977 30' Weekender
    Engine(s)
    Twin Merc 454's, Hurth straight inboards
    Posts
    253

    Re: Tunnel/pockets on 80's 300's & 340's

    Quote Originally Posted by El Capitan View Post
    The other reason was more favorable thrust angle
    x2+
    1977 30 Weekender

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