300 HPDI on a 23' CC

[Chip]

Shine, if money were not an issue I would think about a f 350. I believe they are lighter then the older f 300's.
As for burn rates for my 300 hpdi. I would guess in the 2 mph range. The little bars don't help much and I just put more gas in when it gets low.
I am only getting about 5500 rpm's at wot. I haven't looked up what is ideal but think I could do a little better. Will probaly call ken at prop gods next spring and do some fiddling. Think I can improve cruise and top end a bit.
Chip

[PharmD2B31]

Im going to have to disagree on the Yamaha F350. That engine is entirely too heavy for the 23' Seacraft. Not saying that you couldnt put one on it, but I think its going to be too heavily weighted in the back. The best single engine for this boat is the Yamaha F300. It is actually the lightest engine of its size out there right now. My friend has a Mercury Verado 350 SCI on his 23' Seacraft right now, and he said the engine is too heavy for it weighing in at 667 lbs and he is using a double floatation Armstrong bracket for it. Says the boat needs lot of trim tab to keep the bow down. He said if he were to do it all over again he would go with the Yamaha F300 any day.

Here are the comparison specs.

Mercury 350 SCI ..... 667 lbs
Mercury 300 Pro ..... 20" ... 635 lbs (website notated lightest model, so Im assuming the 20" shaft)
Mercury Verado 300 ..... 20"...635 lbs (website notated lightest model, so Im assuming the 20" shaft)
Yamaha F350..... 25".. 804 lbs......30".. 822 lbs
Yamaha F300..... 25".. 562 lbs......30".. 571 lbs
Suzuki 300 ...... 25".. 604 lbs ..... 30" .. 615 lbs.

[Bushwacker]

Originally Posted by PharmD2B31

. . . The best single engine for this boat is the Yamaha F300. It is actually the lightest engine of its size out there right now. . . .

Don't forget about the 300 E-Tec! It's actually the lightest at 528/534 lbs for 25"/30" versions!

[PharmD2B31]

Originally Posted by Bushwacker

Don't forget about the 300 E-Tec! It's actually the lightest at 528/534 lbs for 25"/30" versions!

Ahhh..... Yea, I always seem to forget about the E-Tecs.....great motors there too!!

[Sullivan21]

Originally Posted by PharmD2B31

Im going to have to disagree on the Yamaha F350. That engine is entirely too heavy for the 23' Seacraft. Not saying that you couldnt put one on it, but I think its going to be too heavily weighted in the back. The best single engine for this boat is the Yamaha F300. It is actually the lightest engine of its size out there right now. My friend has a Mercury Verado 350 SCI on his 23' Seacraft right now, and he said the engine is too heavy for it weighing in at 667 lbs and he is using a double floatation Armstrong bracket for it. Says the boat needs lot of trim tab to keep the bow down. He said if he were to do it all over again he would go with the Yamaha F300 any day.

Here are the comparison specs.

Mercury 350 SCI ..... 667 lbs
Mercury 300 Pro ..... 20" ... 635 lbs (website notated lightest model, so Im assuming the 20" shaft)
Mercury Verado 300 ..... 20"...635 lbs (website notated lightest model, so Im assuming the 20" shaft)
Yamaha F350..... 25".. 804 lbs......30".. 822 lbs
Yamaha F300..... 25".. 562 lbs......30".. 571 lbs
Suzuki 300 ...... 25".. 604 lbs ..... 30" .. 615 lbs.

I want your boys boat! That is so bad arse!!!!! I agree with the power discussion as well, that 300 Yammy is awesome!