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Hi! Lynn
What kind of modifications (porting ect.) was done to get 229.4hp @ 7800RPM. Length of exhaust & intake runners.
Thanks.
Georges B.
Christavia Mk 4 13bNA (dry sump)
-------Original Message-------
Date: 03/31/06 03:31:41
Subject: [FlyRotary] Re: Very short intake manifold length
"That 173.3 HP from the dyno sheet is from an engine with a very short intake tract. It is tuned for best power at 9,400 RPM. That was 244.9 HP. It is not tuned for 6,500 RPM. In use there is no reason to be below 7,800 RPM and I watch the tape from each session to alert the driver is he is dragging the Revs that low in some situations. We will change final drive ratios or hold off an upshift to a different location to avoid going below 7,800 RPM (229.4 HP)."
Hi Lynn,
I'm sure I'm going to be flamed for this question, but I'll reveal my ignorance by asking anyway. (I'm still a baby at this, but growing stronger every day)
If the rotary engine can be tuned for higher output at higher RPM, why are they operated in the lower RPM range for aircraft applications even though we use PSRU's? Is it for fuel consumption, heat generation and reliability only or should I ought to know something else?
Hennie
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