Seriously high revs for a spring loaded poppet valve assembly

Discussion in '4-Stroke Engines' started by Fabian, Feb 23, 2010.

  1. Fabian

    Fabian Well-Known Member

  2. Old Bob

    Old Bob Member

    Cool stuff. I pulled the valve cover off my GX31 that runs over 16,000 rpm one day to show a freind of mine what it looks like at speed.To the naked eye it doesn't look like anything is really moving except that its out of focus.
  3. professor

    professor Active Member

    Cool, I went to a link you did the other day on the dragster and from there watched a small block drag car that turns 12 grand- quite a sound.
    Did you notice the valve springs rotating on the BMW?
  4. GearNut

    GearNut Active Member

    That was very cool! I have seen cgi explanations of high speed valve operation, but to see it in real time is way better.
  5. Old Bob

    Old Bob Member

    Yup, cool isn't it?