Yes now I remember. That is because they are using roller
bearings for the rotor. I agree that is a dumb idea. It needs a
high pressure oil plain bearing system like the Mazda. I think we sent
the Diamond engineers email on that subject. Also the red line
would go up to 9000 RPM from 7000 RPM like the RX8 engine and
28 HP more power would be generated or 128 HP total.

Paul Lamar

Hi Paul,
any comment on the stated BSFC?
BR, Dave McC

The BSFC is over .5 because of the fan cooled rotor. That
fan sucks some HP. Since they would have to add an oil pump
for the pressure fed rotor bearing they might as well go whole
hog and do a oil cooled rotor like Mazda. That will improve
the BSFC to somewhat less than .5 say .47.

Paul Lamar

Paul Lamar ...No rotor no motor.

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