Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post - MAF Scaling

Royce7586 · 10-22-2019, 12:43 AM

Hi all, So I'm trying to get rough MAF Scaling down for my intake before I do my header install this weekend.

I've done one tune change on closed loop and got LTFT down do a 2.34% max deviation.

I don't want to spend a bunch of time on the maf scaling until I install my headers and then I'll really nail it down.

Is 2.34% close enough to do a open loop run?

Also on the open loop portion in the vgi program, What filters should I be changing if any and what to?

Is using just the open loop and closed loop portions good enough for a safe tune when used with the OTS Stage 2 tune?

I plan on spending more time on the tune after the header install but would like to get to something safe to use before I do the install

Sorry for all the questions thanks for your help!

10-22-2019, 12:43 AM	#630
Royce7586 Junior Member Join Date: Jan 2018 Drives: 2015 Halo FRS Location: Kennewick, Wa Posts: 2 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 0 Post(s)	Hi all, So I'm trying to get rough MAF Scaling down for my intake before I do my header install this weekend. I've done one tune change on closed loop and got LTFT down do a 2.34% max deviation. I don't want to spend a bunch of time on the maf scaling until I install my headers and then I'll really nail it down. Is 2.34% close enough to do a open loop run? Also on the open loop portion in the vgi program, What filters should I be changing if any and what to? Is using just the open loop and closed loop portions good enough for a safe tune when used with the OTS Stage 2 tune? I plan on spending more time on the tune after the header install but would like to get to something safe to use before I do the install Sorry for all the questions thanks for your help!