Tuning off the airflow curve is crap if you're boosted - your ECU caps the airflow signal at some value. Not to mention you're affecting your timing curve if you use the SAFC to "scale" your injector pulse for larger injectors. Then we can talk about resolution and the SAFC's lack of it.
IMO, the SAFC does not belong on a boosted car unless you're wanting to half-ass your build.
Bookmarks