330 Express Performance

phs115

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I'm looking at moving up to a 33 Express with F250's. I was wondering if anyone has any performance and fuel burn numbers for this engine package. Thanks
 
I repowered my 330 from 225s to 250s. I ran it yesterday and got about 1.2 miles per gallon at 27 miles per hour full of fuel. My marina switched to ethanol free and I have seen a big pick up in speed (3 knots) and an increase in efficency.
 
You can go to the Grady web site to see the performance report of a 33 with 250's. Great boat I have one with 225's
 
I have found my real world numbers to be similar to those above. On the high side I see 1.2 sometimes tickling 1.3 more often down to 1.1. There has been much discussion that the 225's offer nearly identical performance (except for absolute top end) and better efficiency. I cruise at just about 30 mph.
 
Here is a Yamaha Performance report with F225's on a 33. According to the test report with 250's there is only .8mph difference in top speed. and the 225's get 2.1 mpg better fuel economy.

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Same here, 1.1 to 1.3 depending on trim and RPMs with 1.2 being typical for best trim+RPMs.
 
Do those of you w Express 330 and Yamaha 225s achieve 1.2 mpg and if so at what cruising speed. And do you reach 41 mph. What props do you have. Thanks!!
 
BH are you sure you are doing the math right
or correct me if I'm wrong it's mph Divided by gallons per hour?
When cruising at 28-30 mph I'm using around 15gal per hour = 2 miles per gallon
that's with t-200 OX-66s!
WOT 38mph at 26 gph equals 1.4 miles per gal
 
mronzo said:
BH are you sure you are doing the math right
or correct me if I'm wrong it's mph Divided by gallons per hour?
When cruising at 28-30 mph I'm using around 15gal per hour = 2 miles per gallon
that's with t-200 OX-66s!
WOT 38mph at 26 gph equals 1.4 miles per gal
I am using the fmm to get the mpg's but some real rough math has that about right. At 28-30mph I am about 21gph. I know I am not propped right, but this has just life a fire under me!

Don't mean to hijack thread.
 
I have a 2006 330 with late 2006 F250s and 1,100 hours. Great boat. Get about 1.1 to 1 gal when heading offshore canyon fishing - fully loaded, people, full tanks, water etc. Average trip to canyon 60 miles (burning 29 gph at 4800 rpms and 29-30 cruise) and trolling all day (burning 3.8 gph) and then returning home burns about 150-160 gallons of fuel. With fuel prices at dock at $3.89 per gal yesterday, that’s roughly $600-650 per trip. We absolutely love our boat and it rides very well with no slamming like we would occasionally get with my 2000 272 Sailfish I sold in 2012. Having generator and air conditioning is a huge bonus!!!