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06-02-2012, 11:39 AM | #1 |
Scooby Newbie
Member#: 315875
Join Date: Apr 2012
Location: Palmdale Ca or Santa Clarita
Vehicle:2007 WRX Dark Silver |
My DAM is at .75.... ): should I be worried.
Ok, I did some logs after getting my accessport. The car has a Perrin TMIC. Cobb downpipe and cbe. 91 gas shell. Should I be worried?
https://docs.google.com/spreadsheet/...TYtUGFpSlNoQWc https://docs.google.com/spreadsheet/...YbUVLY2c#gid=0
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06-02-2012, 05:00 PM | #2 |
Scooby Newbie
Member#: 315875
Join Date: Apr 2012
Location: Palmdale Ca or Santa Clarita
Vehicle:2007 WRX Dark Silver |
Anybody? btw the car is an 07 wrx. the logs were in 3rd gear at night around 90ish temp.
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06-02-2012, 09:16 PM | #3 |
Scooby Newbie
Member#: 267463
Join Date: Dec 2010
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yes. that means your timing advance is being reduced majorly because the ecu has seen some major knock. Its not seeing major knock now because the DAM is reduced. If you reset the ecu, the DAM will go back to 1 and the knock will more than likely come back up (assuming you have the same gas in it).
if it was me, i would reset the ecu, and drive with the AP on to monitor the feedback knock. If you see some -2.8 knock during your driving then something aint right. may need to change maps. map you are running would be helpful to know. |
06-02-2012, 10:05 PM | #4 | ||
Scooby Specialist
Member#: 274499
Join Date: Feb 2011
Chapter/Region:
NESIC
Location: RI
Vehicle:1994 5.8T Cobra 755rwhp @ 16psi |
Quote:
Quote:
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06-02-2012, 11:58 PM | #5 |
Scooby Newbie
Member#: 280912
Join Date: Apr 2011
Vehicle:08 STi Dark Gray Metallic |
I'm new to tuning, so I may be wrong, but in order to get good log data shouldn't logs be taken at WOT from around 2500 rpm to redline in 3rd for a 5 speed and 4th for a 6 speed? I just noticed that he wasn't running WOT.
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06-03-2012, 12:06 AM | #6 |
Scooby Newbie
Member#: 280912
Join Date: Apr 2011
Vehicle:08 STi Dark Gray Metallic |
how long does it take the ECU to learn up to the max DAM value, which in this case should be 1.
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06-03-2012, 02:05 AM | #7 |
Scooby Specialist
Member#: 180748
Join Date: May 2008
Chapter/Region:
VIC
Location: BC
Vehicle:2013 Scion FRS Whiteout |
Are you running a Perrin map? Or is it protuned? If it's not tuned for the perrin tmic, I'd start there
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06-03-2012, 02:18 AM | #8 |
Scooby Newbie
Member#: 315875
Join Date: Apr 2012
Location: Palmdale Ca or Santa Clarita
Vehicle:2007 WRX Dark Silver |
im running cobb's stage 2 acn 91 map. the log was in third gear. I've been driving the car for 100 miles before i did the log. i will try to reset the ecu and see what happens. Is it bad to drive the car regularly with a .75 dam?
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06-04-2012, 08:45 AM | #9 | |
NASIOC Vendor
Member#: 4803
Join Date: Mar 2001
Location: Austin, TX
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Quote:
Bill |
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06-04-2012, 11:35 AM | #10 |
Scooby Newbie
Member#: 315875
Join Date: Apr 2012
Location: Palmdale Ca or Santa Clarita
Vehicle:2007 WRX Dark Silver |
Ok, thanks Bill. Does my data log look ok though? It seems like im underboosting? I will update with another data log after maybe another 100 miles.
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06-04-2012, 12:02 PM | #11 | |
NASIOC Vendor
Member#: 4803
Join Date: Mar 2001
Location: Austin, TX
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Quote:
Bill |
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06-04-2012, 09:36 PM | #12 |
Scooby Newbie
Member#: 267463
Join Date: Dec 2010
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didnt know the dam starts at .5 on these cars... my bad. thats why cobb is the expert.
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06-04-2012, 11:36 PM | #13 |
Scooby Specialist
Member#: 274499
Join Date: Feb 2011
Chapter/Region:
NESIC
Location: RI
Vehicle:1994 5.8T Cobra 755rwhp @ 16psi |
You didn't actually read the responses... Did you?
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12-31-2020, 01:10 PM | #14 | |
Scooby Newbie
Member#: 510671
Join Date: Jan 2020
Chapter/Region:
SCIC
Location: California
Vehicle:2006 WRX Gray |
Quote:
I was looking at my base map in ecuFlash and the initial value of the IAM (assuming it is the same as DAM) was .75. Stock this value was .5 There is also an Advance Multiplier Step Value which is set to 0.25 on both stock and the base tune from XPT. I am guessing that the step value is reduced by some other multiplier, because there is only one step of 0.25 between 0.75 and 1.0 ? |
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02-22-2021, 11:51 PM | #15 |
Scooby Newbie
Member#: 522570
Join Date: Feb 2021
Vehicle:2005 STI WRB |
This happened to me. I won't give details as it wasn't good news.
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