I had a question about the construction of a peripheral port that maybe Paul
Yaw could answer. The drawing for the Power Sport engine shows the placement
of the port between the two bolt holes in the rotor housing. It would seem to
me that the angle of the port tube, relative to the horizontal plain of the
rotor housing, would greatly effect the port timing. So...At what location,
on the inside of the rotor housing, should the port pass through the steel
liner? And should it remain round or is it better to flatten it into an oval
like the factory Mazda housings?
Bruce Turrentine

 BruceT2598@aol.com

peritim2.jpg

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