Some real world GPH numbers from a gas powered '97 400DA

Discussion in 'Sport Yachts/Yachts' started by Stee6043, Sep 7, 2018.

  1. MonacoMike

    MonacoMike Well-Known Member PLATINUM Sponsor

    Sep 15, 2009
    Indiana lakes and Lake Michigan
    2000 Cruisers 3870
    97 270 Sundancer
    85 Sea Ray Monaco 197
    8.2 Mercs,
    7.4 BII
    260hp Alpha 1
    I calibrated my Garmin fuel flow meters once at set up and never again in 5 years. It was within a couple of gallons everytime I filled up. (I rarely add fuel, I fill it up.) After set up all I had to do was tell it I filled the tanks so it could reset the fuel onboard.
     
  2. RollerCoastr

    RollerCoastr Well-Known Member

    Nov 15, 2007
    Cedar Point, OH / Miami, FL / MacRay Harbor, MI
    1997 400DA
    340HP 7.4 Mercruiser Bluewaters
    Garmin 741, 742, 8212, 24HD, Intellian I2
    1999 280BR
    Twin 250HP Merc 350 Alpha Ones
    Two things that would make me lean in the direction of Fox is the other data they can provide aside from fuel, and the fact that my GFS-10's are giving me trouble. I was told that they're of a higher quality than Lowrance, yet nowhere near Floscan.

    My meters are on the bulkhead fwd of the stbd engine, directly below the fuel manifold. I included a pic in a write-up I did at the time: http://clubsearay.com/index.php?threads/my-garmin-fuel-meter-installation.64256/
     
  3. RollerCoastr

    RollerCoastr Well-Known Member

    Nov 15, 2007
    Cedar Point, OH / Miami, FL / MacRay Harbor, MI
    1997 400DA
    340HP 7.4 Mercruiser Bluewaters
    Garmin 741, 742, 8212, 24HD, Intellian I2
    1999 280BR
    Twin 250HP Merc 350 Alpha Ones
    That's been my experience too, so I'm curious about Brian's experience. I should note that when I reached out to Garmin about the issues with mine, they kept talking about re-calibrating them. I didn't do that because I didn't think they were listening to me: they work perfectly, until they don't. I felt like they thought I was complaining about them always being wrong, in which case calibration would make perfect sense.
     
  4. MonacoMike

    MonacoMike Well-Known Member PLATINUM Sponsor

    Sep 15, 2009
    Indiana lakes and Lake Michigan
    2000 Cruisers 3870
    97 270 Sundancer
    85 Sea Ray Monaco 197
    8.2 Mercs,
    7.4 BII
    260hp Alpha 1
    Glad others had a good experience as well. I too am curious about Brian's experience.

    MM
     
  5. Captain Brian

    Captain Brian Member

    47
    Jan 5, 2013
    Lake St. Clair
    410 Sundancer 2000
    "The BEECH HOUSE"
    454 EFI Mercruisers with Vdrives, 7.0kw Westerbeke Gennie
    My experience has been great, I plugged in the boxes, wired in the network and was off to the races. Never touched them again. Like I said I had one of the first NAVMAN fuel flow meter systems (not Garmin, I was incorrect) it was terrible and needed constant recalibration. I had a Garmin GPS that was prior to having the ability for fuel flow data.

    Looking at some friends boats with Garmin nav's I think the Garmin has more flexibility, the Raymarine is a bit limited but still gives me the data I want.

    Here is a pic of the Fox Marine box for the Starboard engine and the backbone for the NMEA2000 network - I attached it to the main bulkhead


    IMG_0037.JPG
     
    RollerCoastr likes this.
  6. MonacoMike

    MonacoMike Well-Known Member PLATINUM Sponsor

    Sep 15, 2009
    Indiana lakes and Lake Michigan
    2000 Cruisers 3870
    97 270 Sundancer
    85 Sea Ray Monaco 197
    8.2 Mercs,
    7.4 BII
    260hp Alpha 1
    Great, thanks for the explanation.

    MM
     

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