DCR calculation
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How accurate is this formula? I had an old B1 that measrue 288 degrees of advertised duration. My newer B1 measures 278 degrees. According to the DCR formula this is a huge difference in trapped compression. Is the formula that accurate? My DCR (on paper) went from being fair to being GREAT! With a 62cc chamber and MLS head gasket on a stock motor.
Ben T.
Ben T.