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drop boost on high knock

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Old Aug 15, 2012 | 04:16 AM
  #1  
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drop boost on high knock

Do any of you use this feature with V7? Ive had it setup for a while but just wondering if its causing more harm than good. Knock typically goes away, but I know the transition from full boost to wastgate pressure isnt typically a smooth transition and can cause issues in itself.

If you use it, does it work well, and are you dropping to wastegate pressure or just a couple psi lower? If you dont use it, why?
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Old Aug 15, 2012 | 04:36 AM
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Is there a table for how much to drop ? I only see duration
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Old Aug 15, 2012 | 08:52 AM
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I dont have my laptop in front of me, but there is a table that says somethign along the lines of "WGDC limit during fault". I have mine set to 0 at the moment.
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Old Aug 15, 2012 | 09:01 AM
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I think it just sets WGDC to 0, there's no table to control it AFAIK. "WGDC limit during fault" is also in the stock rom so it's not a v7-only table.
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Old Aug 15, 2012 | 09:07 AM
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Originally Posted by Raptord
I think it just sets WGDC to 0, there's no table to control it AFAIK. "WGDC limit during fault" is also in the stock rom so it's not a v7-only table.
That's what I was thinking.

Still curious to see
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Old Aug 15, 2012 | 10:26 AM
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ahh. I see. Raptord, do you use this feature?
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Old Aug 15, 2012 | 03:02 PM
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i use this, WGDC set to 0 on "High knock boost drop and knock CEL flash time"
it's working very well
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Old Aug 15, 2012 | 08:21 PM
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From: Gatineau, Quebec, Canada
Originally Posted by charlie.tunah
ahh. I see. Raptord, do you use this feature?
No I don't at this time.
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Old Aug 16, 2012 | 07:59 AM
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I dropped the timer to 1000ms. We will see if it helps. Im fighting shift knock, and just wondering whether this feature is actually making it worse as opposed to just lowering timing until the knock goes away.
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Old Aug 16, 2012 | 08:52 AM
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Originally Posted by Raptord
I think it just sets WGDC to 0, there's no table to control it AFAIK. "WGDC limit during fault" is also in the stock rom so it's not a v7-only table.
This is correct
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