TF & Speedmaster Flow Tests

I saw that video as well and thought that was an interesting correlation, but it’s also not a SBM head. In both of the examples you gave, the average velocity at the area you specified would be 240 fps. That would certainly help air get around a corner. I don’t think there is enough metal in the SM head to open it up to 3 sq in to get 300 cfm, so we have to live with a higher velocity. It’s a little hard to define exactly where the apex area is located, but my port is somewhere in the 2.4-2.5 sq in range at the apex. My average velocity at the apex area is in the 290-300 fps range. Port floor velocity exceeds 400 fps (in the center) at 0.600 lift before falling off.