When my car has strong timing curves w/good logs, when you can feel it in "beast mode" (single gear pulls with no timing corrections), there is a distinctly louder engine growl. I know w/VTEC (VTEC! YO!), the changeover greatly altered the exhaust note.
Conversely, when the car isn't pulling as hard, (I had bad gas one time when it was really bad), the car is far more "buzzy" sounding, almost like a thrashing, meatless sound.
Now, I know I've thrown out some pretty big technical terms here... but bear with me:
Are there other, more conservative/protective VANOS tables that the DME is referencing when there is insufficient octane or other factors?
- or -
Has the lower timing reduced the load values, thus referencing different intake/exhaust values in the VANOS tables, further reducing cylinder compression, which results in the thrashing/empty engine sound.
Conversely, when the car isn't pulling as hard, (I had bad gas one time when it was really bad), the car is far more "buzzy" sounding, almost like a thrashing, meatless sound.
Now, I know I've thrown out some pretty big technical terms here... but bear with me:
Are there other, more conservative/protective VANOS tables that the DME is referencing when there is insufficient octane or other factors?
- or -
Has the lower timing reduced the load values, thus referencing different intake/exhaust values in the VANOS tables, further reducing cylinder compression, which results in the thrashing/empty engine sound.
