Cylinder airmass vs custom math

A while ago, I got a cyl airmass math from Ed that never seemed to work: ([2320.71]*(120/8))/[12.56]

So I've use the generic Cyl Airmass table. I recently noticed that there are several canned Cyl Airmass maths.

Has anyone used any of them?

I recently tried it on a 3800 and it did not work for me, only the first column (0.08 g/sec) gets populated.

To make it work you have to add Dynamic Airflow and the correct RPM parameter to your channels. The 12.56 is the SAE version I believe. Then you have to change the row axis on your Advance/Spark retard graph tables to the DCA custom math. If you are using it for a 6 cyl then the math needs to be 120/6.

Ed M

I miss the old scanner that worked just fine on 3800s

Quote:

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Originally Posted by Dusty05

I miss the old scanner that worked just fine on 3800s

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So does version 3 and 4. HP Tuners placed the canned math to provide cylinder airmass fffrom MAF and as well VE and several other formats in the Math Parameters for you....I only create one from Dynamix Airflow to cover both MAF, MAF filtered by VE and VE together in one parameter...

Ed M