About the Guest: Harold Bettes is a Senior Vice President at SuperFlow, and after talking to him I realize, an airflow junky. He is closely involved with two very exciting events, the Advanced Engine Technology Conference and the Engine Masters Challenge.

About the Show:

• What are your core beliefs on air flow?
• Diagnostic tools (flow balls, pressure probe, velocity probe, etc)
• Getting accurate results
• Head Porting: (Harold's thoughts on each area)
  • Gasket
  • Pushrod
  • Roof
  • Floor
  • Walls
  • Short turn
  • Bowl
  • Guide
  • Seat
  • Combustion chamber
• Valves:
  • Diameter - How do you decide?
  • Face - Angle? (45', 55', etc)
  • Back cuts - Angle(s)? Width?
  • Shape?
• Fixing flow problems:
  • Poor low lift
  • Poor mid lift
  • Poor high lift
  • CFM backs up at upper lifts
  • Turbulent (noisy)
  • Other problems?
• Other:
  • How to Duplicate your work
  • The biggest head porting mistakes you've seen?
  • Intake manifold porting tips?
  • Carburetor Porting tips?
  • Current trends in porting?

Forum: Post questions / comments for this guest