Official 330 Express Cruiser / 340 Amberjack 1997-2003 Thread

Discussion in 'Sport Cruisers' started by GrimmSpeed, May 16, 2015.

  1. Jimmy Buoy

    Jimmy Buoy Well-Known Member

    Dec 3, 2008
    Sarnia, Ontario, Canada
    340 Amberjack
    twin 8.1S 370 Hp + 4.5 Westerbeke Genset
    I've always thought it would be nice to have diesels, but with my 8.1's 3600RPM achieves 30MPH and 4500 WOT hits 38.5 MPH. Cruise speed nets about .8 mpg. I would expect the diesels to produce higher cruise speeds and lower fuel consumption. Until you talk to another 340 Diesel owner you won't know. There was a member here from Ohio that had one, he ended up moving to a larger vessel (non Sea Ray if memory serves) but think he's still on CSR. Hopefully he sees this post!
     
  2. Xplicitlnck

    Xplicitlnck New Member

    Jan 2, 2012
    Long island ny
    330ec
    Twin 7.4 straight drive
    Try finding a member with a 400 express Cruiser with diesels. Although the motors may be bigger and the boats a little heavier u can still compare your numbers. If he has the same engines in a larger boat and producing better numbers then u then u definetly know there's something wrong. But my head is telling me you should be seeing about 30 mph at 80 percent load burning roughly 27 gph. Now that's just my thoughts with little deisel knowledge.
     
  3. Xplicitlnck

    Xplicitlnck New Member

    Jan 2, 2012
    Long island ny
    330ec
    Twin 7.4 straight drive
  4. donnam

    donnam New Member

    16
    May 1, 2013
    fort lauderdale
    2001 340 sea ray amberjack, raymarine package,
    3126 cats 300 hp
    thanks guys, I am also going to use a hand tach on the balancers to see if I am making the proper rpms. If it is off then I will work on the wheels
     
  5. idylmoments

    idylmoments New Member

    11
    May 27, 2015
    Port Huron, MI
    2001 340 Amberjack
    T-8.1 Merc Inboards
    We have the thru hull exhaust and the fumes have been bad in the cockpit while at cruise. Anyone else experience this and is there a solution?
     
  6. Xplicitlnck

    Xplicitlnck New Member

    Jan 2, 2012
    Long island ny
    330ec
    Twin 7.4 straight drive
    I have an in home Co battery powered detector as well as factory installed. They have gone off numerous times in the cabin. I found that keeping the cockpit door closed and windshield vent open while underway very helpful. I held the detector with a digital readout at the helm while on a long trip and it always reads a small amount but with door closed and vent open it reads 0
     
  7. joeyleggz

    joeyleggz Active Member

    503
    Jan 15, 2013
    long island
    current boat: 1997 sea ray 330 express cruiser
    twin 454's efi
    +1 on the vent window no smell at all when opened
     
  8. Larry&Leisa

    Larry&Leisa Active Member

    Oct 26, 2006
    Keystone Lake Oklahoma
    1999 330EC
    454's
    Lot of factors go into the station wagon effect. Speed, wind, amount of canvas up. I've always carried a detector on the helm that has a numerical readout. The 370EC was worse than the 330. It's interesting to watch tho and a real eye opener to a lot of passengers. The center vent window does not always take care of the elevated levels.
     
  9. Xplicitlnck

    Xplicitlnck New Member

    Jan 2, 2012
    Long island ny
    330ec
    Twin 7.4 straight drive
    This is true about the vent not being enough. I have u zippers in the eisenglass and I do remember a couple times were I had to open all 3 panels to clear out the co. Had a heavy trail wind.
     
  10. Xplicitlnck

    Xplicitlnck New Member

    Jan 2, 2012
    Long island ny
    330ec
    Twin 7.4 straight drive
    Co is odorless :smt021:smt043
     
  11. joeyleggz

    joeyleggz Active Member

    503
    Jan 15, 2013
    long island
    current boat: 1997 sea ray 330 express cruiser
    twin 454's efi
    this year when i launched the boat it ran in slip for 15 min the co2 In the cabin went off there was a light breeze (5kt) to the back of the boat and it must have filled the cabin .I have 2 co2 detectors in the cabin and one at the helm they have never gone off while underway at cruise speed ive been offshore with a 30kt following wind when i troll and vise versa.highest reading I had in the cabin has been 70ppm it takes almost 300ppm to trigger them. the exhaust ports are on the turn of the hull which I think Is a good design though I wish I had the under water exhaust sys
     
  12. Xplicitlnck

    Xplicitlnck New Member

    Jan 2, 2012
    Long island ny
    330ec
    Twin 7.4 straight drive
    Yea underwater would be nice. The only thing I hate about my boat is how loud it while cruising.
     
  13. joeyleggz

    joeyleggz Active Member

    503
    Jan 15, 2013
    long island
    current boat: 1997 sea ray 330 express cruiser
    twin 454's efi
    just referring to idylmonments comment on "fumes" :thumbsup:
     
  14. joeyleggz

    joeyleggz Active Member

    503
    Jan 15, 2013
    long island
    current boat: 1997 sea ray 330 express cruiser
    twin 454's efi
    I wonder if we can convert it . I did see a wackey attachment to the exhaust ports to join them in the middle of the transom under the swim platform and below the water line to make an underwater exhaust
     
  15. Xplicitlnck

    Xplicitlnck New Member

    Jan 2, 2012
    Long island ny
    330ec
    Twin 7.4 straight drive
    Ok ya got me at idylmoments lol. Nobody said I was edgemekated
     
  16. Xplicitlnck

    Xplicitlnck New Member

    Jan 2, 2012
    Long island ny
    330ec
    Twin 7.4 straight drive
    Not that I would ever bother but I would be interested in seeing that
     
  17. JBJ

    JBJ Member

    97
    Jan 14, 2008
    Solomons MD
    370 EC 1999
    Cummins 6.7 QSB 480 hp
    I own a 370ec with 6.7 Cummins 480hp. I can cruise at 35 mph at 3000 rpms at 1mpg. I can hit the Rev limiters at 40 mph. I prefer 2600 rpms which gives me 30mph and 1.06 mpg at a 61% engine load.
     
  18. Xplicitlnck

    Xplicitlnck New Member

    Jan 2, 2012
    Long island ny
    330ec
    Twin 7.4 straight drive
    Now that's just not fair at allllll!!!
     
  19. joeyleggz

    joeyleggz Active Member

    503
    Jan 15, 2013
    long island
    current boat: 1997 sea ray 330 express cruiser
    twin 454's efi
    Actually you are very knowledgeable bro and a big contributor on here :smt038
     
  20. joeyleggz

    joeyleggz Active Member

    503
    Jan 15, 2013
    long island
    current boat: 1997 sea ray 330 express cruiser
    twin 454's efi
    :huh:http://www.freshairexhaust.com/ what do you guys think!? or something like this don't think they have sea rays but looks simple enough :huh::smt101
     
    Last edited: Jun 4, 2015

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