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Old 08-23-2011, 06:48 PM   #1
Tyrus3
Scooby Specialist
 
Member#: 133875
Join Date: Dec 2006
Chapter/Region: NWIC
Location: Seattle, WA
Vehicle:
2000 Impreza 2.5RSTi
2005 Legacy Wagon

Impreza GC8 Can someone take a look at my logs?

These are my first two logs...so be gentle.

Background: Car overboosted a couple days ago, threw the P0244 wastegate malfunction CEL, cleared it, reset the ECU, reflashed the map. It seems to be running ok now. I suspect there might be some leaks in the system though and I plan on getting it checked out.

Mods:
EJ257 SB
EJ205 heads
02/03 WRX ECU
Cobb dish pistons
Cobb TBE
Cobb XLE BOV
Cobb intake
TD05 FP20G Turbo
APS big TMIC
TGV deletes
DW 650cc

The previous owner had the car e-tuned. I plan on getting it dyno tuned in the near future.


The "Log 7" sheet I listed the rows I was WOT (248-259). Log 8 is small and easy to tell. I wasn't sure how much/little to post. I'm not sure if I was WOT long enough either.

https://spreadsheets.google.com/spre...JOZnc&hl=en_US
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Old 08-25-2011, 09:10 PM   #2
Tyrus3
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Member#: 133875
Join Date: Dec 2006
Chapter/Region: NWIC
Location: Seattle, WA
Vehicle:
2000 Impreza 2.5RSTi
2005 Legacy Wagon

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D'oh, I was lurking this thread for a couple days prior to being able to log some data and Bill from Cobb was all over this thread, but no more. I have noticed that the car backfires a little more frequently in low gear up shifts. It doesn't do it often but it has started to do it more; maybe a couple times a week (dd the car ~250-300 mi/week).
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Old 08-26-2011, 08:09 AM   #3
Cobb Tuning
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You want to start your WOT run a little sooner (say around 2000-2500 RPM). You have some feedback knock near the end of your first WOT run - I'd see if that is repeatable (none in second log) or just because you were lifting off the throttle. In your second run, the DAM has most likely dropped to 14 (depends on what the initial value is tuned to post-reset/reflash). Hybrid motors have different noise characteristics compared to the stock short block, which can mean that you will see more false knock. This can make it difficult to diagnose without a separate means of identifying true knock (such as det cans). We do have beta knock sensitivity tables via the AccessTUNER Race software that you or a tuner that you plan to use could play with if it turns out to be a problem.

Bill
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Old 08-26-2011, 09:27 AM   #4
Tyrus3
Scooby Specialist
 
Member#: 133875
Join Date: Dec 2006
Chapter/Region: NWIC
Location: Seattle, WA
Vehicle:
2000 Impreza 2.5RSTi
2005 Legacy Wagon

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Thanks for the feedback. I'll try to log another run or two over the weekend and post them.
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