|
Message
Be happy to, I won't be able to do
it until Saturday, but will be out at the airport then. However, I would
suggest that we use the default MAP setting that Tracy ships the unit
with. I keep my "B" controller set at his default. The reason is - I can
have my manual mixture control index postioned at where ever I want -
by adjusting the program value. If optimum finds my manual knob set at
10:00 then I lean the program setting until I get optium at
12:00. If at 2:00 then I enrichen the program MAP until I can set the
manual knob to 12:00
I normally program the controller such that my
arrow on my manuel mixture control points at 12:00.
I am using the stock 460 cc/min low impedance Mazda
Injectors
Hi
Ed,
Thanks for
the test offer. I have to admit that you lost me with your reasoning for
leaving the B controller at the default. I can't leave the B controller at
the default, because it's too rich to run below about 15" MAP. I
also adjust the program value to leave the manual mixture knob at 12:00.
At this setting, when I turn off the primaries (MSD's) around idle, I have to
turn the mixture knob all the way down, and it's still a little too rich running
on the Mazda 550's.
Since you
have matching injectors, you would expect to be able to turn off the primaries,
and have the secondaries run at the same mixture setting. In the past,
you've mentioned that you have to enrichen the mixture before turning off the
primaries, or the engine wants to lean out and die. The question is- do
you have to leave the mixture richer than 12:00, or can you turn it back to
12:00 and still run fine on the secondaries alone?
Tracy, is
this a valid test? In other words, do the primaries and secondaries get
the exact same pulse width when running by themselves below the staging
point?
Thanks,
Rusty
|