"peripheral port right from the get go" begs the question: Since the p-port
provides so much extra power, why doesn't Mazda use them?  Does the BSFC
suffer or is there something more important?  In any case the compound
turbine will more than make up for any possible loss in BSFC!

Norm

Mazda used them in the Lemans engine and got a BSFC of .47. That is about the
lowest ANYBODY has been able to attain out of a
Wankel rotary so far and they were not running it super lean. They won the race
outright in 1991 over all on a race fuel limit running against who's who in
international car racing. ONLY Japanese company ever to win Lemans.

Mazda current rotary engine development is primarily driven by two things.
Low speed/RPM torque and emissions. Low speed/RPM torque is the only reason
for the extremely complicated RX8 engine intake manifold. P-ports are not
the best for low speed/RPM smooth running and emissions.

Paul Lamar ...No rotor no motor.

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