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reducing burst knock

SgtMarshal

SgtMarshal

Active member
I've taken a few scans of my car and seem to have a bit of kr. I'm wondering if it is burst knock because I have cut timing a few times with no noticeable effect. One person suggested to 0 out the burst knock table because it isn't real knock. The only problem is that he can't remember what tables he adjusted and I don't see an LS4 specific guide on what tables to change and what to change them to. here is a screen shot of the knock retard page in my tune:

https://drive.google.com/file/d/0B6KoWYZT_pmCSXQ4bzVwRU1xYkk/view?usp=sharing
 


How's the lower motor mount or trans mount? I had random knock all over with my regal that couldn't be tuned out. Turns out it was a bad motor mount. Once I fixed it, no more kr
 
will the burst knock retard show up as actual knock retard? I'll try logging it first and see what it shows.

I haven't checked my motor mounts yet, but it could be worn
 
It will show up on both knock retard and burst knock if you log them. There should even be a type of knock retard you can log to see what the computer is saying I think.
 


What?

Not sure what you are doing. I was just saying to log both knock retard and burst knock in the main channel display. See what it says when you take a log. Likely you'll end up just zeroing out the burst knock table so it's a non factor while tuning.
 
I added burst knock to my graph and chart, and only saw .1. I wonder if something is loose because I cut several degrees of timing and it didn't seem to affect the kr much.
 


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