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1990 3785 Avanti

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    1990 3785 Avanti

    Considering purchase of a 1990 3785 Avanti. Not familiar with large Bayliners.
    questions.
    Hull solid fiberglass?
    Fuel consumption on OMC 454's?
    Owners and prior owners opinions?
    Thanks in advance for responses.

    #2
    Hey Twinscrewzz - are you sure it isn't a 3685? That's what I've got . . don't think they did a 3785 (but I've been wrong before). My 3685 (1998) weighs in at 23 - 24,000 lbs . . . and has the 454's and at full throttle for running fast (NOT WOT), she'll suck upwards of 30gph . . . . per engine!
    1998 Avanti 3685 - "Dad's Dream" w 454 Mercs - just a rockin' an'a rollin'
    Former - "Home Aweigh" 2003 - 2452 Bayliner Cierra Classic Hardtop Cruiser
    WQQM835 MMSI: 338147209
    James H. Stradling

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      #3
      Dad yep 3785. 3 names in 4 years. Started as a 3450 then added an integrated swim platform and like magic a 3785. Hull length is actually 33'9"
      What speed and RPM are you running while burning 60 GPH for the pair? I'm assuming cruise speed close to 27 knots at 3500 to 4000 RPMs. 1 thing 454's are not known for is fuel efficiency. 23k to 24K is pretty heavy. The 1990 3785 shows as 13150 lbs dry per NADA specs while your 98 3685 shows 21000 lbs. This is why I ask if solid fiberglass hull or cored hull.
      thanks for your reply

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        #4
        I have the 3450 model 1989. The 23-24000 lb weight seems high to me. I have mine on a trailer and have weighed it at a DOT scale. On the trailer (weight 3000#) it weighed 18150 dry and empty. That woukd be like saying the swim platform weighs nearly 10,000#. Although it doesn't take long for junk to add up.

        in would guess pretty easily weighs in the high teens low 20,000 range fully loaded and ready to sail for a week.
        1989 Avanti 3450 Sunbridge
        twin 454's
        MV Mar-Y-Sol
        1979 Bayliner Conquest 3150 hardtop ocean express.
        Twin chevy 350's inboard
        Ben- Jamin
        spokane Washington

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          #5
          Here is a approximate burn rate for the 454.
          1989 Avanti 3450 Sunbridge
          twin 454's
          MV Mar-Y-Sol
          1979 Bayliner Conquest 3150 hardtop ocean express.
          Twin chevy 350's inboard
          Ben- Jamin
          spokane Washington

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            #6
            Originally posted by yachtman View Post
            Here is a approximate burn rate for the 454.
            The good news is does not seem to matter what speed you cruise at .6 to .7 MPG is what ya get. Easy calculations for cruise planning.

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