MAF/Injector Scaling

Hello Teachers.

I installed a New Intake System(GrimmSpeed) on my 6 STi JDM so MAF sensor scaling is off by 8.79% to 13.38% (Blue Colored) AT 0.00-5.59 g/s to 10.00 - 49.99 g/s (ROMRider Learning View).

i wanted to reduce 5% from the scaling and log again. Am i in the right direction? and how to do it.?

In the video " MAF/Injector Scaling-Subaru " Sir Ben multiplied the MAF area by 0.975 for 2.5%. what will be my value to reduce or Add 5% ?

This is the Learning View

Based on your logged data I'd probably suggest you could start with an 8% change, assuming that the data you collected is good quality. To reduce the fuelling by 5% you subtract this from 1.00. 5% is expressed as 0.05 so it's just 1.00 - 0.05 = 0.95 to reduce the number or 1.00 + 0.05 = 1.05 to add.

That Clears Up..will be doing 8% as suggested and log again.

Thank you.!