Ok here are some before and after airspeed numbers. Let me begin to say mine maxes out at 401 foot per second which is crazy fast. I’ve found that anything over 350 at a curve is in the hard to control numbers. What happens is in the case of the short turn if air can’t navigate the turn it will shoot across the turn and crash into the “good air” going across the back of the port and shut it off. These speed numbers are at .500 lift so when you see numbers back up at say .600 lift this is what is going on. The port becomes noisy and numbers back up. Without a flowbench we could never check this and without checking speed numbers we wouldn’t know where to port next for better flow numbers. When you port one area say the shortside and get better numbers you may be able to go back to the pinch and get even better numbers. I call it milking a port. It is time consuming but well worth the effort.
