Pronto
No amount of evidence will ever persuade an idiot.
- Joined
- Dec 9, 2002
- Messages
- 16,751
"Machine" ported heads are first hand ported to get the runner shape results they want. That shape is scanned to the computer. A totally repeatable milling can be done. They can have a selection of different port scans depending on what they need as well. When they say a head will flow X they know it will. It really is a cool tool. Here's on example: Cylinder Head Porting Machine, 5 axis Power Max CNC Porting Machine.
It's probably impossible to get that exact with hand porting.
It's probably impossible to get that exact with hand porting.