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John Slade wrote:
Cutting fuel till the MAP comes down is the only workable solution I can
see.
Yes, I tend to agree. Tracy - are you listening? Does this make sense to
you?
Anyone else care to comment? I'd really like to get something built into the
EC2....soon.
Regards,
John
Again, - I'm speaking auto use - you have to be very careful using fuel cut in a boosted rotary, all it takes is a couple of hard knocks instigated by a transient lean condition to break apex seals. There's plenty of fuel coating the inside of the manifold, etc., to do this even if you shut the injectors completely off. It's a very short phenemenon but it is there. Another thing - hard fuel cuts are scary in a car, I would imagine the soiled underwear factor is quite a bit higher while flying when you hit cut. I use hard fuel cut as a rev limiter in my NA and it STILL gets my attention. That said, I believe Tracy's ECU manages spark as well as fuel. Random spark cut and/or massive retard may be the way to cut your boost in those temporary situations.
-Mike
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