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Thread: Purpose of an exhaust port that isn't flush with the piston at BDC?
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Old 06-25-2018 | 02:05 AM
  #33  
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fyrstormer
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To clarify, I was asking if it is helpful to bevel the outer edge of the exhaust port in the sleeve to match the shape of the exhaust port in the crankcase. The idea is to remove sharp edges that might interfere with returning pressure pulses, without changing the size of the exhaust port.
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