alright, this will become a repository of burbling exhaust videos lol
@
rayd any further developments to your tweaking? I'm almost certain now that the burbling is mainly due to the tuning, although the exhaust system will influence the end sound.
I am curious as to what the effects of different methods in tuning will have on the burble and will keep researching. However, these seem to be the main tuning variables:
a) retard timing only
b) make over run AFR very lean
c) combination of A and B
d) enable over run fueling (apparently injectors are shut off on over run)
e) combination of A-D
I've also searched youtube for an MPS with this but couldn't find any, which further points to that it is in the tuning.