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head portingTitle: "Flow Theory"
Guest: Harold Bettes
Length: 133 min
Show # 020


Interview is part of our Airflow Experts Series

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?



Interview is part of our Airflow Experts Series

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