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With a new modifed liner with modified intake ports wider booster ports and shorter header the rotor valve have also been cut on the closing side and the org muffler has been changed with a Mathe 35 muffler with brass tube.The engine went from 17400 to 18400 rpm with the same strut hight and the same slightly modified PS 7016/4 SS prop.
The org closing time on the rotor disk is 60 degrees .It has been cut to nearly 72 degrees at the closing side.The header is shortened 12 mm.
This is the org CMB 35 engine info.
Squish band : 0.35 MM
Exhaust port opens at : 90 degr.
Rotor valve closes at : 60 degr.
Rotor valve opens at : 30 degr.
Side fuel booster ports : 112 degr.
