Raptor Fuel Consumption Curve

[Zog]

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!

[HFarr]

Strap a few 5 gallon cans to your platform!

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[Holdmybeer]

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!

[Zog]

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.

[Tommy2slow]

I don’t know where I saw but I did see a spreadsheet that had the 6.2 Raptor peak efficiency at 3500 rpm.

[sandm]

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

[MJHSupra]

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

[MJHSupra]

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/

[Holdmybeer]

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.

[HFarr]

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!

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