Re: 2010 215xi Smart Tab sx10512-90 installed PICS
My tabs are different from yours, but I can say from my experience that you should not have to trim the motor at all with these on your boat. Trimming the motor upward makes the bow rise out of the water and causes porpoising and improper thrust from your prop. These tabs are garranteed to take that porpoising away, but not when the motor is trimmed upward to the extend you would be causing it to porpoise just by motor tilt. Your motor should be tucked in, all the way down while planing. Once on a plane, yes, you can adjust the motor upward a little to gain speed. If you trim it to much, you can cause the boat to porpoise. But you shouldn't have to trim it that much to cause that to happen. Something is definately wrong here.
I would be getting nauticus to come check it out and figure out why they are not working properly. I can't comment on your size tabs or the actuator size, because I have no idea how heavy your boat is or what nauticus recommends for your patricular application. But as far as getting it right, I know they will continue to help you until this is fixed. . These tabs are based on the size/weight of the boat. One tab is not a fit all. Like I said, maybe you need larger actuators or different tabs. But something isn't right!
Boats porpoise when the boat is not in the best running attitude. I would call them again and ask them what they recommend now! But like I said, sounds like you need larger actuators or your trimming way to much causing the porpoising. Post some more pics of the tabs mounted, side veiw if possible. Keep us posted please.
I am a mechanic by trade and some boat owner that doesn't know how to operate a boat, I've had buddies come and try to tweak it with me for entire days and nothing panned out. I wouldn't mind sending them back if they would take them, but whose gonna pay to have the 16 holes filled on my boat until I can get some tabs that work? These tabs are the new larger ones specifically for deck boats, they are 10.5in wide and 12in long with 90# actuators.