bigblocksforever

Well this is why I joined oso.

seafordguy

If I remember correctly my 800hp N/A motors hit a Max fuel flow on the Dyno of 48 gallons per hour.

As was said above fuel is the cheapest part, even at $4/gallon. #6 drives are the cat's meow, but IF you were to blow one up you're out a boat load of money. My boat probably deserves 6's based on the size but in a weird way I'm more comfortable with XR's. At least if I obliterate one I'm out a few thousand dollars and back up and running the same weekend.

seafordguy

Also, don't underestimate the value in reliable boating. It will make you experience enjoyable....

JaayTeee

Was the boat an all white 40 SS Skater with blue drives and a cardboard
bussle?

Griff

800HP should be right around 68 GPH at WOT if tuned very well.
It takes a certain amount of fuel to make a certain amount of HP.

Twin O/B Sonic

That is a great quote that I have not seen before.

Now if I can just convince my wife 😂

I also subscribe to the 10 hp @ WFO = 1 gph theory.

cigrocket

iTrader: (3)

Fuel is about the smallest expense when it come to Performance boats[/QUOTE]

Griff is right. Fuel means the boat is running, you are using it, no repairs, miles of smiles. When gassing, it means your going.

snapmorgan

iTrader: (2)

My 35 with 700's averaged about 1.2mpg, but they didn't do that at 100mph

resurrected

Last summer I averaged around 1.5 MPG, 30' single step with 600HP blower motors. Lots of cruising between 65 and 70 with plenty of shorts bursts over 80. I run ethanol free premium with 5 gals of C16 per 50 gals of premium. I don`t care what it costs for fuel, the season is way too short stay on the dock when the weather is nice.

bob

Looking at an old KE dyno run. 750 hp at 6700. BSFC of .55. .55 x 750 = 412# / hr. 412 / 6.3 (weight of gas) = 66.7 GPH. At least on these motors.