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-   -   How does this AFR table look? (https://www.miataturbo.net/engine-performance-56/how-does-afr-table-look-100640/)

Justin Pezzack Jul 14, 2019 08:49 PM

How does this AFR table look?
 
Stock BP4W
MS3 Basic
Racing Beat 4-1 Header, Connecting Pipe, Muffler
949 U bend Intake

Just used the AFR table generator in TS, optimistically looking for 145-150whp on CA91. How does this guy look? I think cruise could be leaned out a bit but other than that seems about right up top.

https://cimg9.ibsrv.net/gimg/www.mia...1b6232500b.png

borka Jul 14, 2019 11:29 PM

too rich.

why are you less than 14.7 in cruise?

everything 65kpa and down should be 14.7

sixshooter Jul 15, 2019 11:44 AM

I was thinking 15 or higher in the 4500 range below 65 just like the column to the left. That's lean cruise and pairs well with 40+ degree timing on the factory map.

HowPrayGame Jul 15, 2019 12:41 PM

I'm running an almost identical setup with an NB2, here's my AFR Target Table, fuel economy is measurably better than stock. 29-30 degrees of timing from 4k rpm to redline at 100 kpa, high 30s low 40s in my cruise region. My new table has the innermost 15.3 cells set to 15.5 and it works fine. The leaner you run the more nox you will emit. I changed the 14.8s to 14.7 above cruise cells as well. I'm running east coast 93 which seems to be better than CA91 so be careful with spark advance

EDIT - Added current AFR Target Table

https://cimg9.ibsrv.net/gimg/www.mia...38a475a006.jpg


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