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

Discussion in 'Classic Sea Rays' started by norriscathy, Jan 1, 2017.

  1. northshore

    northshore Active Member SILVER Sponsor

    Jan 17, 2011
    Cleveland, OH
    1989 340 Sundancer
    Raymarine E90W Radar/Chartplotter
    Twin 454 Mercruiser 340's
    I believe I said I get the draft thing.

    You need help guy. Maybe less sugar or one size bigger panties.

    BTW: How is your quest for replacement shafts going?
     
    Last edited: Jan 10, 2017
  2. nickdcj7

    nickdcj7 Member

    233
    Jan 5, 2014
    Bass River, NJ
    1986 390 EC
    Twin 454 Mercruisers

    I don't want to get in the middle of someone else's fight, but here's a photo of a 2011 68 hatteras:
    [​IMG]

    and here's a 2011 54 hatteras:
    [​IMG]

    and i know they used them on some of the older hatteras boats as well. I can't say I've seen them on a bertram though.
     
  3. northshore

    northshore Active Member SILVER Sponsor

    Jan 17, 2011
    Cleveland, OH
    1989 340 Sundancer
    Raymarine E90W Radar/Chartplotter
    Twin 454 Mercruiser 340's
    Looks like someone needs to 'educate me' some more.
    Still laughing about that.....
     
  4. nickdcj7

    nickdcj7 Member

    233
    Jan 5, 2014
    Bass River, NJ
    1986 390 EC
    Twin 454 Mercruisers
    I didn't even pay attention to who was posting what. How you doin Mike?
     
  5. northshore

    northshore Active Member SILVER Sponsor

    Jan 17, 2011
    Cleveland, OH
    1989 340 Sundancer
    Raymarine E90W Radar/Chartplotter
    Twin 454 Mercruiser 340's
    Doing good Nick! - PM sent
     
  6. Getaway

    Getaway Member

    841
    Oct 13, 2010
    Bay City, Michigan
    Lowrance electronics, Fishhawk speed-n-temp, Scotty electric downriggers and custom arch
    Single big block 454 Mercruiser engine and outdrive.
    :grin::grin::grin:
     
  7. sbw1

    sbw1 Well-Known Member

    Oct 10, 2006
    West Michigan
    This is listed in my signature
    This is listed in my signature
    Another happy 30 foot Weekender customer. Bought a new 1986 SR at our local in the water fall boat show. We owned that boat for about 10 years and really enjoyed it. Had not heard about the tunnel drive question. We just wanted to be rid of outdrives after two boats with them. The straight inboards were great and docking was much better than I/Os. The layout was perfect for our needs and our current boat is a bigger version of the 1986 Weekender. We really enjoy it as well.
     
  8. norriscathy

    norriscathy New Member

    60
    Jan 21, 2013
    east texas
    boatless
    boatless
    I see you have a '77 300 WE; I'm looking at a '78 30 EC. Any pro's or con's on your boat? Looks great! Does it have tunnel pockets? Although the photos are not real clear, it looks like the 78 EC has a traditional hull. Do you have any idea when Sea Ray went to the tunnel pockets on the 300's and 340's?
    Norris
     
  9. El Capitan

    El Capitan Member

    208
    Jul 9, 2014
    Chicago IL./Vero Beach, Fl
    1970 SRV 180 w 2.5L Mercruiser.
    2000 Ford Expedition Eddie Bauer
    120HP Mercruiser
    Hull tunnel vs prop pockets. Different designs for different purposes, especially on Hats. Your edumacation continues at no charge mate.

    http://lh5.ggpht.com/_93kGAIj1p_I/S0Pkho7LoHI/AAAAAAAAAiU/GkAYOrs4bI0/s720/DSC_0291.JPG

    http://lh6.ggpht.com/_93kGAIj1p_I/S0QAdtmvZII/AAAAAAAAAjc/-8X9lTjM6LY/s720/DSC_0301.JPG



    http://lh4.ggpht.com/_93kGAIj1p_I/S0QAYAhDOhI/AAAAAAAAAjU/-6bCw3vdAow/s720/DSC_0299.JPG
     
  10. dpmulvey

    dpmulvey New Member SILVER Sponsor

    Dec 19, 2007
    Homeport: Charles City, VA
    1999/2007 330 Sundancer Hardtop.
    6.2 Merc Horixons
    1.5:1 Velvet Drives
    Actually, both Bert and Hatt have built boats greater than 50' with prop pockets.
     
  11. ks65609

    ks65609 New Member

    342
    Aug 30, 2009
    Ontario Canada
    1992 330 Sundancer
    Twin 454 Mercruiser--340hp

    V drive inboards
    We have owned both Express and Sundancer models with big block power units. Both had tunnel hull design. We changed to the Dancer model to gain the mid cabin. The pivot point on the Dancer is slightly more to the aft however not a big deal and just a matter of getting used to with bow swing in a breeze. I like the shallow draft of 27 inches as compared to l/O units. I do not find any issues with backing .
     
  12. cmount1

    cmount1 Member

    212
    Feb 14, 2011
    Lake St. Clair, Michigan
    1979 300 Express
    Twin Chrysler 330's (440ci or 7.2L)
    I have a '79 EC with big block Chryslers and it doesn't have tunnel pockets. I like having the engines mid-ship which allows the boat to plane out easier and I don't have to run the engines as fast as the DA model. Depending on how much of a load I'm carrying or which way I'm cruising on the river I run between 2200 - 2400rpm which will give me 18 - 22 mph. The trade off is less cabin space and I'm sure my normal cruising speed is slower. Sorry I don't have an exact year, but I believe the change to prop tunnels started in the early '80's
     
  13. ks65609

    ks65609 New Member

    342
    Aug 30, 2009
    Ontario Canada
    1992 330 Sundancer
    Twin 454 Mercruiser--340hp

    V drive inboards
    It is good to see some numbers posted. I run 2800 rpm and 24 mph, so about the same 400 number difference. I trim to get these numbers as close as possible.
     
  14. cigars01

    cigars01 Member

    68
    Sep 1, 2016
    Lake Lanier,Cumming Ga
    1981 Searay 310 Vanguard Express Cruiser.
    Twin 454 Crusaders Direct Drive
    I just bought a 1981 310 Vanguard Express Cruiser with tunnels. This boat is direct drive not V drive. Twin 454's and the one time I used it I was running 23 - 25 mph at 3300 rpm.
     
    Last edited: Mar 26, 2017

Share This Page

Show Sidebar