250 ox66 Gas Mileage Question

[BassHog007]

Does anyone know information on the gas mileage for a 2004 Yamaha ox66 on a 210 Blazer..Idle...Midrange...WOT

Thanks,

Dusty

[Champ203]

I can't speak to idle and midrange, but a good rule of thumb on carbs and EFI's is a gallon per hour for every 10 Horsepower.....so 25 gallons per hour at WOT. How fast is the boat at WOT and you can find out the MPG....

Only exception seems to be the Direct Injection motors which are slightly better at WOT and alot better at 4500 rpms and less....

I just switched from a ox66 225 to a 250 HPDI and the fuel savings are significant (I don't run WOT very much).

Hope this helps some....

Peace,
Don<><

[BassHog007]

Thanks for the info

[GE Blazer]

MPG on a 202 Blazer hull with an OX66...

RPM Speed gph mpg range
3500 42.7 8.6 4.8 190
4500 62.0 16.0 3.9 154
5800 84.4 26.9 3.1 123

IMO, not a whole lot of difference between it and a HPDI. This data was from Bass & Walleye in a 2002 article. I kept it because it was the same setup i bought.

[BassHog007]

Thanks