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Message
I'm hearing
from Leon that the ignition timing in general, and specifically the timing split
between leading and trailing is CRITICAL to turbo installations. I "think"
Tracy is retarding the ignition with boost, but I don't know how much.
The aftermarket computer
that I had on my FD allowed you to change anything you wanted wrt timing or
fuel. I didn't mess with the timing much, but recall that
the rule was to never have a negative split under boost. In other
words, never have the trailing fire before the leading. I think the
guys who need to worry about exactly what split to run, are also the guys
who are making 500+ HP out of a
13B.
I suspect that Tracy's 0
split will be perfectly fine for our needs, assuming the turbo can be kept under
control. I also don't see any better option than the EC-2 for turbo use,
in fact, I think it's just dandy.
Cheers,
Rusty (Where would rotary aviation be
without Tracy?)
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