Both boats are equipped with the Volvo V6 225 SX.
Ok good to know...I will say then that up to a certain size the 4.3 is actually a good thing. Over a certain loa however and a 4.3 could be considered underpowered as compared to whatever the optional power might have been. I've seen the engines offered on some larger boats range from a 4.3 up to a 350mag which to me makes me wonder.
On the 19 and under boats where resale is concerned then, the 3.0's sort of languish for sale, the 4.3's get snapped up and depending on fuel prices the v8's may or may not be preferred since there is a bit of a fuel penalty as you would expect. The 4.3 and the 3.0 actually get nearly identical 'mileage' believe it or not but the 4.3 has close to 50% more hp and a lot more torque. Boattest.com has some good graphs that denote the 4.3's and 3.0 in different applications. I can say for me, I will never buy another v6 again since it lacks the mid range power I would like that a v8 provides.
Will I be making a mistake by buying an i/o for mixed salt and fresh use? The boat will be trailered, cleaned and flushed after every salt use.
That is surprising actually given the Regal is 3400lbs dry with a 40 gallon gas tank. I'm scratching my head why the 5.0 isn't offered since that is 350mag range for top optional engine much less 5.0 MPI range. That is about the top of what I'd put a 4.3 in. The trouble comes when you have a 21" prop and a load of adults...that's when you see the big difference between the torque of a v8. When you are running a normal sized crew, it's acceptable and of course you can prop it any way you wish.
I agree, my 19ft Four Winns is offered with 270 V8. OP, I have the same 225 V6. FWIW I can get a slalom skier up with 6 guys in the boat with the stock prop, granted I'm at 2800 lbs.
The 19h2o hits 60mph with the 4.3 mpi, 4 people in boat 3 batteries and trolling motor. Bigger engine isn't needed, maybe the 21' version.
That is not correct. Unless you measured the top speed with a broken slide rule. Top speed at WOT (4900 rpm) is 51.2 mph in the 19H2O with the 220hp 4.3L and Alpha drive. Slightly slower with the VP drive.
http://www.boatingmag.com/boats/chaparral-h2o-19-sport