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Message
Rusty,
You've been getting some good advice on this so
far. I agree that you either have very mismatched flow rates on the
primary & secondaries, OR the cold start function is being actuated at
unexpected times (pin 30 being grounded) as Ed speculated. This
would explain why disabling the secondaries made a difference when running at
low (12" ) MAP. You MUST determine which of these is true before doing
anything else. With your background I'm sure you know the importance of
eliminating each problem befor proceeding to the next.
The EC2 can compensate for mismatched flow
rates *within limits*. If you have a choice, use the lower flow rate
injectors as the primaries. If there is too much spread in the flow rates,
only matching them more closely will fix the problem.
Most importantly, Running all 4
injectors all the time is not an answer and will result in serious hair
loss in the future if attempted.
Al, on the low MAP programming, it will help
to initially set the MODE 2 program width to maximum before making that
first low map adjustment in MODE 1. This will adjust a couple of steps
below the actual running MAP. Forgot to mention this the other day
when we were talking about it. Remember to set mode 2 back
to minimum before making fine adjustments after this.
Tracy
----- Original Message -----
Sent: Monday, August 18, 2003 9:52
AM
Subject: [FlyRotary] Re: today's engine
results- still no joy
I had a problem with the engine dying after pulling the throttle
back when it went to a MAP pressure below where I was able to run and make the
big correction. This is influenced by the large primaries, but I believe
will be solved by going to a MAP referenced regulator.
This was all great info Al. Thanks
a lot for the reply. The point about creating artificially low,
un-tunable MAPs by closing the throttle is something I never thought
about. Yep, that carb is looking better all the time
:-)
Rusty (who hates carbs, and is just
kidding about using one)
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