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Recent content by NzRyan

  1. NzRyan

    4-VALVE HEAD - OPTIMUM PORT VELOCITY??

    Hi All, Now with theese caculations for peak power/rpm port sizes, would the port size be the same for turbo charged engines?. Thanks Ryan
  2. NzRyan

    4-VALVE HEAD - OPTIMUM PORT VELOCITY??

    Hi, thanks Incandescent, hate that when you doing the math late at night, I looked at the piston speed, twice even, forgot to div by 60 for per second.. All looks good now on calculations. Cheers Ryan
  3. NzRyan

    4-VALVE HEAD - OPTIMUM PORT VELOCITY??

    Hi Guyz, I'm new to this forum, and have been reading this with greate interest, and trying to use the formulars to find the best port size for my 3ltr v6 motor peak power at 6850-7000rpm, has 83mm stroke-87mm piston diamiter, 4 valve, very simular to andyv8's examples, but if best air speed...

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