Tested my single rotor today. The first time with some real,
reproduceable data.
The configuration is with one compound side housing. The other side
housing is still sandwiched, using milled down MAZDA housing section.
This version weight for the nacked engine, flywheel and water pump
included, is 90lb. This engine is based on 12A rotor and rotor housing.
Intake is P-P.
Data:
RPM 4000
Fuel flow 2.5GPH
MAP 21"
EGT 1400F
O2 .650 = 15 (ratio)
At shut down:
oil temp 200F
Water temp 200F
oil pressure was 50psi cold and hot, looks suspect.
The water pressure gauge did not work, which was the reason for
shutting
down after 7min runtime. I had planed to go to max water temperature,
did not want to do that without water pressure.
Idling speed is 1300RPM, cold or hot.
The most interesting fact of this test is the possibility of a power
estimate. Calculated power using a BSFC of .5 is 30 hp. Looking at the
power curve of the LeMans engine, this is about 10% below of what is
shown there. From this, I believe the projected over 100hp at
7500RPM is
within reach.
Richard Sohn
N2071U
Excellent - Jeff Martin
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