excessive knock on e85
#18
Update:
The Accel Enrichment vs. Temp table doesn't affect the knocksum.
I finally bit the bullet and played with the knock control tables. I raised the low multiplies by 3 (to 16) and the mid by 2 (to 20). I then raised the load value to 120 @ 2500 and 95 @ 3000,3500.
That caused basically all of the free-revving knock counts and the persistent ones that I get under light throttle to go away. Maybe it _is_ just valve train or drivetrain noise. *shrug* I do have aftermarket motor mounts.
Did I just set myself up for catastrophe? Will those small changes have a big effect once I load the car up on track? In those load cells I'm running the stock timing values on E85, although I'd like to run some 91 occasionally too...
d
The Accel Enrichment vs. Temp table doesn't affect the knocksum.
I finally bit the bullet and played with the knock control tables. I raised the low multiplies by 3 (to 16) and the mid by 2 (to 20). I then raised the load value to 120 @ 2500 and 95 @ 3000,3500.
That caused basically all of the free-revving knock counts and the persistent ones that I get under light throttle to go away. Maybe it _is_ just valve train or drivetrain noise. *shrug* I do have aftermarket motor mounts.
Did I just set myself up for catastrophe? Will those small changes have a big effect once I load the car up on track? In those load cells I'm running the stock timing values on E85, although I'd like to run some 91 occasionally too...
d
#19
update:
I drove around today while listening with detonation cans . I didn't hear any knock, just a rhythmic combustion sound and a little bit of valve train noise in the background.
I'm curious what folks think about my change to knock sensor tables...
d
I drove around today while listening with detonation cans . I didn't hear any knock, just a rhythmic combustion sound and a little bit of valve train noise in the background.
I'm curious what folks think about my change to knock sensor tables...
d
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