Quote:
Originally posted by miles Machine
"the green vertical represents 0.25D of the intake valve, where the intake valve lift position becomes removed from flowpath and port begins to dominate... you can see where the intake port is limiting valve potential at ~0.300" lift... the left vertical scale represents CFM increasing every gradical 50cfm... the right vertical scale represents velocity in f/s."
Can you simplify this a little sentience more im confused, what does 0.25D mean?
0.25D = 25% the diameter of the valve