gph

  1. William McDevitt

    Fuel Burn and Speed Concerns

    Just recently took delivery of a 2017 400 fly and looking for feedback on performance: Twin Cummins 6.7 QSBs @2700 RPM 80% load 38 GPH Speed 18.2 knots Props just refinished. Seems slow and fuel burn seems high. Specs from boat test of same boat have her at least 23 knots and lower GPH...
  2. B

    Considering Purchase of 1989 SeaRay 340 Sundancer

    I am considering buying a 1989 SeaRay 340 Sundancer with twin 454 engines. I am unsure of the prop pitch, but guess it is stock. I have been sailing since 1986 but know little about operating costs for a power boat. I need a better understanding of fuel usage (per hour/RPM/speed). Does...
  3. P

    Sea Ray Performance Database. share your numbers for future references

    I think if we all share our performance information it will be a very powerful tool for future references, new users and troubleshooting problems in all Sea Ray's , the numbers provided by the manufacturer not always echo the real world. Boat: Amberjack 290, 2002 Power: Mercruiser 6.2 L MPI...
  4. S

    Newbie here looking at a 270 sundancer, 7.4 fuel burn

    Hi, I'm looking at a 1991 Sundancer 270 with a 7.4 BB and Alpha One drive. What rpm would produce the best fuel economy? thanks rory
  5. N

    Help please, Merc 260's 2bbl vs 4 bbl

    I need serious help, from somebody who knows Merc 260/5.7 carb engines inside and out, or at least has knowledge and experience working with them. Knowledge of these as twins, in the Amberjack configuration would be even better. I've got a 87 270 Sportfish (Amberjack flybridge) with twin...
  6. S

    why is my 300 Sundancer going thru some much fuel?????

    2005 300 Sundancer with twin 5.0's We are new at owning a searay and do not understand why the fuel consumption is big. We have several friends that own the same boat and some with bigger engines and do not go thru the fuel we do........and drive more then we do. We need some help and...
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