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Old 07-27-2011, 01:40 PM   #1
rlig
Scooby Newbie
 
Member#: 116838
Join Date: Jun 2006
Chapter/Region: MWSOC
Location: Ann Arbor, MI
Vehicle:
2007 STI CGM
1998 2.5RS WRB

Default First datalogs after engine rebuild. Thoughts?

Hey all,

I know, everyone is probably sick of these "i'm new to teh datalogz, plz halp" but any input would be appreciated. I'm beginning to understand what i should be looking at and what it all means.

2007 STi
75k miles
Cobb stage 1 93 octane
Use shell/bp 93 octane gas
Rotella 5w-40
1200mi since new shortblock, valves, etc

85degF, ~50% humidity

First Log (my commute from work to the highway):
https://spreadsheets.google.com/spre...VFRFE&hl=en_US

Second Log (highway cruise):
https://spreadsheets.google.com/spre...RwMkE&hl=en_US

Third Log (3rd gear pull):
https://spreadsheets.google.com/spre...Z0dEE&hl=en_US

I'm comfortable with the first two logs, but the third log has me slightly concerned. The DAM is at 1 which i'm pleased with and the maf seems to be reading consistently, boost is hitting target and tapering off, the knock feedback is pretty low and occurs right about throttle lift-off time, but the knock learning is what concerns me.

I plan to get a pro-tune in a few months when i get all the requisite stage 2 items, but wondering if i should invest in one before then.
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Old 07-27-2011, 05:41 PM   #2
redline23
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Member#: 285799
Join Date: Jun 2011
Chapter/Region: MWSOC
Location: La Crosse, WI
Vehicle:
2012 WRX 5-Door
WRB

Default

I'm new to datalogs as well, just started learning about them today and what all the stuff means. I think it looks pretty good, just that your ecu remembers where it encountered knock and pulled timing, twice in a few places. I'd be concerned about that too. Maybe you can try to reset the ECU to see if you get feedback knock and it learns the same values again?

From what I've seen on the romraider forums, you don't need the accel position, just throttle position. AFR would be interesting to see, however I think it would be ok since AF Learning is pretty neutral IIRC.
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