Wow thanks for the responses! I though you guys had given up on me.
The boat is a Sea Hunt BX22 with a F150 stroke so its not rated for maximum HP which I believe is 200 or 250 HP.
As you can see in the video the thru hull exit is right at the boot stripe which depending on where someone is standing may or may not be underwater.
There is not much elevation difference between the existing thru hull and the existing horizontal scupper. Bottom line is there is nothing in that configuration I wish to reuse. It will be used to augment my scupper modification.
This is what a figured out and what someone else told me - Basically horizontal scuppers (the kind that I have only work at their FULL capacity when the water level is about the top lip, which is a lot of water in my case.
However vertical scuppers always work at the full capacity as long as the lip is below the draining water which is always the case.
Its all about water levels and equilibrium. I probably have 3 inches between my deck and the water level outside the boat. But as long as i have some distance there, the water will still drain with vertical scuppers.
I dont mind wet feet and get that now anyway. water can come in and water can go, but when I go (hit the throttle) I want the water gone and crud with it.
So after looking at tons of 90 degree vertical scuppers, none are going to work since I am hampered by clearance underneath where the scupper would go. Right now I am sizing out pvc for some sort of the custom fit. The discharge would be a new thrull hull on the bottom of the boat.
I am thinking of something liek this. The L piece on the right but I got to figure a way to keep it snug with the deck and I wish the wall thickness was a little better.
