Posts: 3469
Location: Elk River, Minnesota | Hiya,
Chances are if you are looking at the same brand of motor, the 200 and the 250 are built on the same engine block with the same components, but with different settings for fuel management/output.
If memory serves me correctly, a manufacturer can put a HP number on the motor so long as it is making within 10% of that rating. So...with motors built with the same displacement, the lower HP model is most likely making over that Rated HP.. and the larger HP motor is making less...
In your case between a 200 and a 250, I would bet the 200 is probably running around 215 or so, and the 250 is running around 235. The difference being fuel management. The larger motor getting more HP from more fuel and maybe a little higher compression ratio.
I'm one who also believes in maxing out the HP on a boat as well, as the higher the HP, the better the low end torque you most likely will have. In this case, you would be looking at 80% of max HP, which is definitely a good possibility to work just fine. Propped correctly, the boats will be different by about 5mph as a very very rough estimate.
Steve |
