13B RPM limit settings

[Dexter Alleyne]

Rotary guys..I’m trying to configure the safest rpm limiter for an rx7 drift car. I was wondering if you guys could share your settings with me? I have a Fury X. I noticed older Link ECUs have a ‘Rotary only’ option but with this one it does not. 

[Adamw]

G4X has a bit more intelligence around injection and ignition scheduling so the old rotary limiter mode does not offer any significant further advantage now.  Ignition cut is the safest option for rotaries as injection events may not always be aligned with intake events so with a fuel cut you can end up with a partial fuel dose making it into a combustion chamber.  I suggest adding a positive fuel trim to the limiter as the richer exhaust gas and lower EGT softens any backfires that may occur a lot.  

Something like below should be a reasonable starting point.