My wife and I are brand new to the MY scene. We have a 1999 406 Aft Cabin with twin 7.4 Mercruiser engines. We normally just put around on our lake anyway, but we have throttled her up a time or two. However, after reading on this forum, it seems like we are not getting anywhere NEAR the kind of performance this boat should be delivering. I understand there can be a million factors that effect a boat's performance, but we seem to be far off the mark. I am hoping some other comparable size and engine configured owners can tell me if my concerns are warranted.

Our boat will only RPM up to about 3,000-3,100 RPM max, and our top speed is only about 15 mph per the GPS. It actually pretty much tops out performance-wise at about 2,800 rpm at 14-15 mph, which is only a touch over halfway on the throttles. Everything over that just seems to give us nothing performance-wise.

The boat has been in the water for about three years since its last bottom job (before we bought it), but has been used fairly regularly over that time. Both engines typically start right up. They both idle fine. Response at idle seems pretty good to me. But when you want to get up and go... it just aint happening. I read on this forum that other owners with our size boats get cruising speeds of 25 mph and max speeds of 30+?!?!?!? Is that for real? Should I be able to get close to 30 mph out of this boat? If so, any suggestions on where to start?

Thanks so much!