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Message
Greetings,
First, I still haven't
tried the auto tune yet, but should give it a full test when I build the new
intake. I wasn't going to do the intake now, but since my garage is full
of stuff that should be outside in the destroyed screen room, I can't really
work on the Kolb. Frequent readers will also realized that I didn't need
much of an excuse :-)
Tracy, I'm happy to report
that I've seen no further wacky behavior on the EM-2 since installing the new
software. Before, it had a tendency to display wildly incorrect numbers on
occasion, such as 60 gph, and the only fix was to turn it off and back on.
It also used to show fuel flow when the engine wasn't running. So far, so
good on all that. Thanks!
Yesterday, I was showing
24.5 gph at 8000 ft and WOT. Let's hope that's not true :-) Now that
I can get serious about getting this set correctly, I looked at the FF
cal. I presume the 151 number is set for the stock Mazda "460"
injectors. From what I can tell from the archives, Mazda doesn't use
standard practice for rating these, and in fact, they seem to test much higher
when using standard methods. One example I found was someone who had 4 of
these "460" injectors tested, and they each flowed 520. When I take 520,
compared to my current 400 injectors, there's a 23% difference, so I'll
raise the 151 cal factor by 23% to 186 and see what that gives me.
It's also interesting to note that taking 23% off my 24.5 gph figure gives 18.9
gph, which is far close to what I'd expect at max
power.
Now for a
question- I've seen figures for Brake Specific Fuel Consumption (BSFC) in
the .55 range for a non-turbo rotary. If I were going to use
this factor to calculate HP from fuel flow, what mixture would I need to be
at? Is this for best power, 14.7, or does it even
matter?
Another question for Tracy-
Does the Max HP figure do anything other than changing what is displayed on
the screen for HP? I would presume the % power figure should always be
correct, but if you put the wrong max HP factor in, then your displayed HP
would be wrong.
Final question for Tracy-
How much did John pay you to sabotage Buly's EC-2 :-)
Thanks,
Rusty (catching up to Ed on
the intake count)
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