2100CC 225 four stroke prop help

[James I]

I just repowered my 1995 2100 CC with a Mercury 225 V6 four stroke. Love the motor but expected some better performance numbers. Running a mirage plus 15P and my top end was 5700 RPM’s and 40MPH. I expected a little bit better than this and was hoping someone out there had a similar setup and could offer some prop advice. I’m most interested in a fast and efficient cruise rather than top end. I’ve read that the enertia ecos can help cruise and MPG, but I was hoping to find some comparison numbers before I drop that kind of money on a propellor. Thanks I’m advance for any and all help!

 

[James I]

Anyone have any experience?

 

[GoodChance]

Is this the new v6 225 from Mercury or a Yamaha-rebranded Mercury 225 v6 4-stroke. Or something in between?

Without knowing the exact engine and gear ratio, it's hard to make a prop recommendation. But normally the Mercury Mirage is an excellent prop on the heavy Parker hull. The big blade area serves the Parker hull well.

40mph on a 21ft Parker is quite slow from 225 horses. My first inclination is that your motor is mounted too low and you have excessive drag robbing speed.

 

[James I]

It’s the new 3.4L 225 V6. It’s possible it’s still a little low, but when trimmed all the way up I can see the top of the cavitation plate. I was under the assumption that was the correct height.