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Old 03-24-2010, 07:55 PM
77SceptreOB 77SceptreOB is offline
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Join Date: Jun 2009
Location: Columbia, SC.
Posts: 1,611
Default Re: 225 hp Optimax for a 23'? Good fit?

Quote:
I've got a 2003 3.0L EFI 225hp on mine, not an Opimax though. I'm happy with mine....around 3800rpm and it runs perfect in most all conditions with a 17 prop. I,m at around 13.5 to 14.5 gal per hour at that rpm.
WOW!! That is some serious fuel consumption at that RPM!!

I run a 23 Sceptre w/ a 225 Yamaha 2 stroke and burn 9-10 gph at 4200 rpm @ 30 mph on GPS. Obviously I'm pleased with those #s. Also I'm pushing a hardtop and half-tower thru the air too.

I top out at 39 mph @ 5250 rpm running a 15 pitch alum prop. I have a "short" linkage throttle cable so I'm not totally pushing the engine throttle plate to the WOT positon. That's why I only turn 5250 w/ a 15" prop. That IS INTENTIONAL, due to the fact my 225 is 22 years old and I don't want to rev & rattle this motor to death. Before I changed the linkage I could turn 5800 rpm at 42 mph (GPS). I felt like the extended engine lifespan was worth the 3 mph on the top end.

The above performance was with one person (me) & a very light load of gear and equipment and 1/3 tank of fuel say around 25-30 gallons.
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1977 SeaCraft 23' Sceptre W/ Alum Tower & Yamaha 225
www.LouveredProductsUnlimited.com
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