onesickpantera

iTrader: (1)

Here's a great example for the new 502. Baja 26 Outlaw burned 21.3 gph at 4000 rpm doing 49.2mph. A Cobalt 296 burned 22.2 at 4000 rpms doing 37.8mph. Like I said similar loads so similar gph, the difference is in speeds. Now, if they could just figure out how to get more hp and cut the gph in half(and then some) like you did they would be on to something!

Somethin' Sexy

And I'm quite sure you believe these figures would be exactly the same in salt water and fresh water. I'm done going back and forth with you, you believe what you want. I have owned 7 boats, 5 of them with basically the same power. None of them had matching GPH #'s. My 30' scarab burned a lot more fuel than my Active Thunder, my single engine Baja sipped fuel compared to my 36' Cruisers...the scarab,baja and cruisers, all had carbed 454's.

onesickpantera

iTrader: (1)

Your single Baja sipped fuel compared to a cruiser because it cruised at lower rpm, and had one engine.

I will believe what the math says. If you want to believe your boat engines burns less than 9gph at 4000 rpms then do so, but don't expect others to believe it.

509 SC

I have a 33' stepped hull with the newer 502's with cats, from memory, the smartcraft shows between 11.7and upwards of 13.9 GPH per motor at 3500 RPM which will vary based on wind and waves. I'm running 50 MPH on GPS, so being the math wizz that I am, it appears to be about 2 MPG or a little under. Not too bad from what I see, some of the supposedly efficient Center consoles don't do much better running outboards and topping out at 60. They probably aren't anymore efficient at 50 than me! For what it's worth.

Crossett

must be the magic DDC hull

camptappakeg69

So did you do the run on one tank of gas or did you have to fuel up? Wish we could have made it out there, maybe next year!

classclown

One tank the run was approx 94 miles and a lot of fun. I kept the rpms between 3500 and 4000 with a few wot bursts. Everyone was super nice there and Templton Landings food was outstanding. I have been there a few times for weddings or dinner and the food was ok. One of the waiters explained they have started making everything homemade. It would be nice to have another tantrum in the run as well, next years run is going be Aug. 8th & 9th hope to see you there.

speicher lane

Interesting math - a few years back I hauled a reproduction antique lap strake boat out of Fort Lauderdale on one of the hottest days I ever experienced down there. I figure we evaporated just shy of 5 gallons of fuel/ hr on the trailer running north.

In all honesty - 4.4 g/hr burn seems more indicative of a mid size O/B at 4000rpm

REMEDY

I have same said 33 with modified 525's and the majic DDC hull... I have fuel flow meters hooked to Garmin chart plotter. It gets 1.8-1.9 mpg cruising anywhere from 40-60 reliably. Then slides down to 1.4 mpg wide open in the 90s. 5000 rpm is 80 mph and 1.6 mpg. The fuel flow meters are dead on. Its measured fuel flow not derived from the ecu. I have calibrated them by filling the tank and comparing total fuel from Garmin vs fuel taken to top it off.