MAF tuning

[ahall1]

I have a slp 85mm maf,tsp 85mm lid slp cai,janzter tb,so i have more airflow than stock.I am curently rich--ltft are-8.To lean it out do i increase or decrease value in maf table?

[joecar]

Best thing to do is to iteratively adjust MAF table (increase or decrease), go log data, and repeat
(if LTFT is more negative now, then do the opposite of what you did;
if LTFT is less negative now, do same as what you did, but in a lesser amount;
if LTFT overshoots, either do less or do opposite).

You may have to increase/decrease different portions of the MAF table by different amounts.

If you go to a dyno shop, can they measure the actual air flow rate being drawn by your engine...?
If so, can this be correlated with your MAF sensor flow rate...?
If so, adjust your MAF table based on the difference between the two values
(this should get your MAF table closer to the actual flow rate of your SLP MAF sensor).

MAF table is difficult and time intensive to get right.