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Old 09-07-2017, 11:10 AM   #1
AceKingNYC
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Member#: 406087
Join Date: Nov 2014
Chapter/Region: Tri-State
Location: New York City
Vehicle:
06 VF48 Wrx Wagon
WRB

Default After EWG tune experiencing DAM and Knock issues. Concerned

Hey all,

Looking for suggestion/feedback/opinions from folks much more knowledgeable than myself.

Long story short, I have an 06 WRX with the following mods: VF48 turbo, ID1000 injectors, Perrin TBE (catted DP), Perrin inlet, STI TMIC, GS EBCS, Cobb intake and Cobb box, and a GS Uppipe and Turbosmart compsmart 40mm EWG. Air pumps are deleted and I did not do tvg deletes. Basically I have an STI stage 2 setup with bigger injectors.

These mods (prior to the ewg) were on the car and I was tuned with no issues. I always monitor my drives with the AP and feedback knock and fine learning knock had always been 0. So, I never logged as nothing seemed out of place for me to do so. Values have never changed during cruising nor at WOT. DAM was always 1, once again, never had that number been affected under any conditions. That tune was about a year ago, high and low weather maps used with no problems.

Recently added the EWG and have had knock and fine knock learning registering. DAM has hit zero at WOT, .5 and .125 in some instances. Timing seems to be all over. I absolutely think it's the tune but wanted opinion on what can be the problem here.

I posted a link to a log at WOT in 3rd gear. Once I saw DAM drop I let off the gas bc I fear causing serious damage. Any opinions would be greatly appreciated.

https://docs.google.com/spreadsheets...t?usp=drivesdk


Update: Retuned, all is well now!
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Last edited by AceKingNYC; 09-15-2017 at 06:06 PM.
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Old 09-07-2017, 01:40 PM   #2
Bansheeboy11
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Join Date: Jun 2008
Chapter/Region: Tri-State
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1999 RS
Aspen White

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Im assuming you got a new tune with the EWG? If so, id definitely have the tuner look into it if it ran good beforehand. And seeing your location, what shop did you bring the car to? Ive seen loose alternator brackets, intercoolers banging on stuff, none of that has ever caused false knock. Your log as some pretty solid knock correction thats not a loose part.
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Old 09-07-2017, 02:03 PM   #3
AceKingNYC
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Member#: 406087
Join Date: Nov 2014
Chapter/Region: Tri-State
Location: New York City
Vehicle:
06 VF48 Wrx Wagon
WRB

Default

Quote:
Originally Posted by Bansheeboy11 View Post
Im assuming you got a new tune with the EWG? If so, id definitely have the tuner look into it if it ran good beforehand. And seeing your location, what shop did you bring the car to? Ive seen loose alternator brackets, intercoolers banging on stuff, none of that has ever caused false knock. Your log as some pretty solid knock correction thats not a loose part.
Absolutely, tune was done immediately following the ewg install. And I agree, I feel that some knock may possibly register with some banging or looseness. But I'm very worried about DAM dropping like this. I'm kind of being told that nothing really looks out of place, and it's raising red flags.
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Old 09-12-2017, 10:16 PM   #4
ShinjiML
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2011 STI ShinjiTuned
DGM

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Quote:
Originally Posted by AceKingNYC View Post
Absolutely, tune was done immediately following the ewg install. And I agree, I feel that some knock may possibly register with some banging or looseness. But I'm very worried about DAM dropping like this. I'm kind of being told that nothing really looks out of place, and it's raising red flags.
Had a quick look at your log and it looks like your tuner did not scale the timing table properly for the EWG. Judging by what your ignition timing is at even with DAM at 0.125, your timing at a DAM of 1 would be WAY too high for an EWG, unless you're on E85.
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Old 09-13-2017, 11:14 AM   #5
AceKingNYC
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Member#: 406087
Join Date: Nov 2014
Chapter/Region: Tri-State
Location: New York City
Vehicle:
06 VF48 Wrx Wagon
WRB

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Quote:
Originally Posted by ShinjiML View Post
Had a quick look at your log and it looks like your tuner did not scale the timing table properly for the EWG. Judging by what your ignition timing is at even with DAM at 0.125, your timing at a DAM of 1 would be WAY too high for an EWG, unless you're on E85.
Nope, no e85 - just 93 pump gas. Thank you for your input. I hope to retune and smoothen everything over. I was most concerned with any damage from the DAM dropping ..any cause for concern?
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Old 09-13-2017, 10:49 PM   #6
ShinjiML
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Join Date: Sep 2010
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Vehicle:
2011 STI ShinjiTuned
DGM

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Quote:
Originally Posted by AceKingNYC View Post
Nope, no e85 - just 93 pump gas. Thank you for your input. I hope to retune and smoothen everything over. I was most concerned with any damage from the DAM dropping ..any cause for concern?
It'll be hard to say without examining the internals and/or running a compression test, but there have been plenty of cars that have had the DAM drop and are still running well
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