I/O vs inboard on a 23 center console

[JohnB]

I have not riden in an I/O SeaCraft, but have in many similar I/O's. I have been on an inboard several times, and this is what I see.

An older I/O or inboard will not be as efficient as a 250-300hp new outboard.

The newer fuel injected I/O or inboard will be more efficient than the older outboards, especially 2 stroke carbed.

The outboard in almost all cases will outperform the I/O or inboard when it comes to speed, simply from a horsepower to weight ratio. Especially if the outboard is CORRECTLY mounted and proped on a bracket.

The older outboards are noisier and have more fumes than either new or old inboards (unless it's diesel). The newer outboards are about the same noise level, and have very little fumes, even the 2 strokes. If you have the outboard on a bracket with a full transom, it drastically reduces noise and fumes of any outboard.

The I'O's and inboards ride better, but most are stern heavy and the balance is off. You need some BIG trim tabs, and maybe move some stuff around to balance these boats. Part of the better ride is due to the I/O and inboards aren't running 40+ mph, but alot has to do with the low center of gravity and the weight of the engine being 10" above the keel line.

I/O's and inboards tend to have more maitenance and tinkering required to keep the up and running. If you have good mechanical skills, this isn't a big deal, but if your a turn the key and go guy, it will probably drive you nuts.