In a message dated 7/24/2007 6:12:30 P.M. Eastern Daylight Time,
lendich@optusnet.com.au writes:
Re your analysis comparing side ports with p ports, I wonder if such an
analysis is even possible as they are quite different.? Anyway, I doubt that a
standard port can deliver 100 hp or a street port 130 hp. per rotor, certainly
not when limited to 7500 rpm.? Of course I am only guessing.? No real
knowledge or experience.??
From a Daryl Drummond dyno sheet for a 12A bridge ported running 36MM
chokes. One per housing.
6,500 RPM 139.6 Torque 173.3 HP
7,000 RPM 147.6 Torque 196.9 HP
7,500 RPM 152.6 Torque 218.2 HP Front EGT 1518/ Rear EGT 1492/
BSFC .671 oil 164/ pressure 100.1
F/A 12.1
Main 210/ air .80. A Pport with a slightly larger choke would better. A 13B
Pport would do still better.
A 13B Pport injected would do much better.
Lynn E. Hanover