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  1. #1
    Join Date
    Jun 2020
    Location
    Utah
    Posts
    197

    Default Raptor Fuel Consumption Curve

    Does anyone have the fuel consumption curve for the 2016 Indmar Raptor engines? We are headed to Lake Powell next week and I am debating about a longish excursion and want to see if I have the fuel to do it before hand. I haven't really tracked my fuel consumption on a per hour or per mile basis in the boat other than to say that if I go surfing for half a day I need 15-20 gallons. This summer I was able to get at least 50 miles up and back with a bunch of surfing in between and was into the 30-40 gallon range each day, but this excursion will be about 60-70 miles total, so I think I am safe but given the remote area we will be going to and the time of year, I would rather not be stuck floating for a while.

    Thanks!


    2016 Moomba Mojo Surf Edition
    2000 Sharpe Houseboat 70x16 (Lives at Lake Powell)

  2. #2
    Join Date
    Mar 2021
    Location
    South Georgia
    Posts
    1,502

    Default

    Strap a few 5 gallon cans to your platform!

    Sent from my SM-G781V using Tapatalk
    2021 Moomba Makai
    Black Cherry Metal Flake & Fire Red
    Nibral OJ 15.5x15 Altitude/Wake prop w/1.76 trans v-drive
    Wet Sounds bow speakers & 10's on the Tower & ported sub

  3. #3
    Join Date
    Jan 2021
    Location
    Columbus, Ohio
    Posts
    1,045

    Default

    Running around Norris lake without any surfing or pulls 70 mile round trip would be no issue. Water was very calm to glass and I stayed at 4000rpm or less. With the 1.5 Trans and the 15x13 prop 4000 is 20mph so 70 miles is over 3 hrs of runtime.

    If you surf while making the cruise I would strap a fuel can to the platform as CYA!
    2015 Moomba Mojo Surf Edition
    4,000lbs
    Manual Flow

  4. #4
    Join Date
    Jun 2020
    Location
    Utah
    Posts
    197

    Default

    For sure we will bring along extra gas. The day of the long run we won't be surfing so I will probably put a couple cans in the rear lockers just to be safe. I was just hoping for the RPM with the best fuel consumption in that 3,000 RPM range. I am pretty sure there won't be any issues, but I have done that lake enough times to know that a stiff headwind and heavy waves will chew up your gas really quickly.


    2016 Moomba Mojo Surf Edition
    2000 Sharpe Houseboat 70x16 (Lives at Lake Powell)

  5. #5
    Join Date
    Apr 2020
    Location
    Prince George Canada
    Posts
    279

    Default

    I don’t know where I saw but I did see a spreadsheet that had the 6.2 Raptor peak efficiency at 3500 rpm.
    2020 Moomba Mojo
    2008 Mastercraft Prostar 197 40th Anniversary
    Owner Ness Lake Watersports
    Wakemakers “Exact Fit” Bags + Lead = 4,700 ballast
    Audio by Wetsounds, MTX, JL Audio, Clarion
    15 X 13.00 ACME prop

  6. #6
    Join Date
    Jun 2008
    Location
    Henderson, NV
    Posts
    6,870

    Default

    not an engineer and never played one on tv but I would suspect there are wild swings in efficiency numbers between different combos of running gear, prop selection and boat hull design along with the overall payload. that doesn't even begin to mention zog's comment on wind/waves.

    the engine may find it's sweet spot at 3500rpm's on a bench but real world might be 3100 in zog's boat, 3700 in larry's supra SA and 3400 in our old tige r23 due to hulls/trans ratio/prop/hull.
    one day might be 2500 to go 100 miles and next day you might be able to get away with 3400 and go the same 100 miles on the same gas usage.

    either way I'm jealous that you are on powell
    '06 Supra Launch 20SSV-gone but never forgotten

  7. #7
    Join Date
    Apr 2013
    Location
    Knoxville TN
    Posts
    2,708

    Default

    There are some numbers floating around for a boating review online. I recall looking at an online chart (? wakeboarding mag or wakeworld?) with rpms and gph on the Raptor. Not sure what motor
    Last edited by MJHSupra; 10-04-2022 at 09:41 AM.
    2018 Supra SL400

  8. #8
    Join Date
    Apr 2013
    Location
    Knoxville TN
    Posts
    2,708

    Default

    2020 data from a link for the 550 - fuel data is from boating magazine

    https://www.wakeboardingmag.com/stor...-supra-sa-550/


    2021 data from a link for the 450 - fuel data is from boating magazine:

    https://www.boatingmag.com/story/boa...ra-sl-450-bbg/
    Last edited by MJHSupra; 10-04-2022 at 09:46 AM.
    2018 Supra SL400

  9. #9
    Join Date
    Jan 2021
    Location
    Columbus, Ohio
    Posts
    1,045

    Default

    Check this out and see if you get what you are looking for.

    https://forum.moomba.com/showthread....aptor-6-2l-400

    If this is true for a Craz your Mojo should be comparable depending on crew and gear weight. 5 GPH at 22mph. 70 miles is 3.25hr so 18 gallons consumed on your excursion. Your tank is 40 so should be good unless you are pulling the whole trip. If you are 70 miles one way a 5 gallon fuel can as backup.
    2015 Moomba Mojo Surf Edition
    4,000lbs
    Manual Flow

  10. #10
    Join Date
    Mar 2021
    Location
    South Georgia
    Posts
    1,502

    Default

    You will never truly know how far you can go until you go! but sounds like you will be fine. And it sounds like a fun trip!

    Sent from my SM-G781V using Tapatalk
    2021 Moomba Makai
    Black Cherry Metal Flake & Fire Red
    Nibral OJ 15.5x15 Altitude/Wake prop w/1.76 trans v-drive
    Wet Sounds bow speakers & 10's on the Tower & ported sub

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