MAF Table Scaling
10-09-2004, 11:34 PM
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MAF Table Scaling I have made a "new" scaled MAF table based on the data I took and best fit of a 5th order polynomial.
Is this amount of scaling OK?
Are there limits to what you can scale to or not?
Thanks in advance for any information.
Is this amount of scaling OK?
Are there limits to what you can scale to or not?
Thanks in advance for any information.
10-10-2004, 10:13 AM
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The numbers are all within range. You should probably
eyeball the curve (5th order is "unnatural" in my opinion
and you don't want any jigginess in it) and you might
also want to "improve" the poly fitting process, by adding
a whole bunch of duplicates to the endpoint values in
your table; in similar work I found that the Excel curve
fitter would not weight the ends very highly and made
a better fit in the middle while letting the low and high
ends go a little bogus.
The PCM will not like anything over 511.9 g/sec. That
I think is the only numerical limit you have to worry
about.
eyeball the curve (5th order is "unnatural" in my opinion
and you don't want any jigginess in it) and you might
also want to "improve" the poly fitting process, by adding
a whole bunch of duplicates to the endpoint values in
your table; in similar work I found that the Excel curve
fitter would not weight the ends very highly and made
a better fit in the middle while letting the low and high
ends go a little bogus.
The PCM will not like anything over 511.9 g/sec. That
I think is the only numerical limit you have to worry
about.
