2012 WRX Stage 1+SF Data Logs

[KitKatJim]

I just installed the Cobb SF intake and used the Stage 1+SF normal wastegage 93oct v3.10 last friday, so it's been 5 days with this map. I was running the Stage 1 v3.0 before that. I did some data logs and saw a few things that made me concerned. I watched the youtube video of how to read the log, but I would like a second opinion. I would appreciate any help I could get with these.

Data log 16: This is normal driving while my car was warming up. It was a very long log that I shortened up to show the areas I was concerned with.

Data log 18: This was after the car warmed up and was a quick second gear pull. I am concerned with the feedback knock before the pull.

Data log 19: Another short second gear pull. I feel like I am slightly over boosting at 18.14 psi.

Data log 20: 3rd gear & 4th gear pull. Again, I feel like I am slightly over boosting during 3rd and the fine knock learning concerns me.

Data log 21: Another 3rd gear & 4th gear pull. Nothing really concerns me on this one. EDIT: Cells 188-205 is concerns me a lot.

Data log 22: Short second gear pull followed by normal driving. I am concerned with cells 83-86.

Another note, I noticed that I was getting ~14-15mpg on my short 2 mile drive to work. I'm assuming this is normal because the car doesn't have time to warm up.

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[BigRob74]

sub'd, but just fyi u need to make these files view able, i cant read them without permission..

[KitKatJim]

My bad, thanks for pointing that out. Should be fixed now.

[KitKatJim]

I just took a look at Data log 21 again. Cells 188-205 really concern me. I didn't notice these before. I believe I had cruise control on during that log if that matters.

[2Fast4U1DAY]

Originally Posted by KitKatJim

I just installed the Cobb SF intake and used the Stage 1+SF normal wastegage 93oct v3.10 last friday, so it's been 5 days with this map. I was running the Stage 1 v3.0 before that. I did some data logs and saw a few things that made me concerned. I watched the youtube video of how to read the log, but I would like a second opinion. I would appreciate any help I could get with these.

Data log 16: This is normal driving while my car was warming up. It was a very long log that I shortened up to show the areas I was concerned with.

Data log 18: This was after the car warmed up and was a quick second gear pull. I am concerned with the feedback knock before the pull.

Data log 19: Another short second gear pull. I feel like I am slightly over boosting at 18.14 psi.

Data log 20: 3rd gear & 4th gear pull. Again, I feel like I am slightly over boosting during 3rd and the fine knock learning concerns me.

Data log 21: Another 3rd gear & 4th gear pull. Nothing really concerns me on this one. EDIT: Cells 188-205 is concerns me a lot.

Data log 22: Short second gear pull followed by normal driving. I am concerned with cells 83-86.

Another note, I noticed that I was getting ~14-15mpg on my short 2 mile drive to work. I'm assuming this is normal because the car doesn't have time to warm up.

1. There is WAY too much data to filter through in your logs. You should begin logging right before you mash the throttle to do your pull.

2. You need to take proper logs in order for us to determine if there is anything out of order. Pulls should be made in third gear WOT starting around 2500 rpm and run to near redline if you can do so safely.

3. Don't be concerned by knock that occurs under low load and rpm. This is okay. What you don't want to see is knock corrections that occur under heavy load (in boost and WOT).

4. Unless there is an issue occurring in cruise situations (too rich/lean, hesitation/bucking, etc) then there is no real need to log that data.

[hutch959]

knock at load - 0
knock at no load - higher than im use to ... but ok.

i think your fine. just keep an eye on it. if you start pulling dam id go 91 oct.

[2Fast4U1DAY]

Originally Posted by hutch959

knock at load - 0
knock at no load - higher than im use to ... but ok.

i think your fine. just keep an eye on it. if you start pulling dam id go 91 oct.

How can you even tell if he is knocking under load, he never made a proper pull to see the data necessary to determine if he's okay or not.

I do see two okay pulls in there, nothing alarming in them though. I would still like to see another proper log to verify.

[KitKatJim]

I guess I was unaware that it didn't matter if there was knock not under load. The reason I took those logs is to see if there was unusual fuel correction under normal operation. I'll get a couple of more proper logs and post those up.

[2Fast4U1DAY]

Originally Posted by KitKatJim

I guess I was unaware that it didn't matter if there was knock not under load. The reason I took those logs is to see if there was unusual fuel correction under normal operation. I'll get a couple of more proper logs and post those up.

If there was any alarming fuel corrections that you could notice under normal driving, it would be just as noticeable at WOT. It would actually indicate a vacuum/boost leak, Bad MAF, Bad A/f Ratio sensor or O2 sensor, etc.

[KitKatJim]

Here are some more logs I just ran. They are all third gear pulls from ~2500 to redline with one exception, datalog26, due to...conditions... I linked it anyway because I figured it couldn't hurt. Any feedback would be appreciated, thanks.

datalog24
datalog25
datalog26
datalog27

[hutch959]

smooth like butta

[2Fast4U1DAY]

Originally Posted by KitKatJim

Here are some more logs I just ran. They are all third gear pulls from ~2500 to redline with one exception, datalog26, due to...conditions... I linked it anyway because I figured it couldn't hurt. Any feedback would be appreciated, thanks.

datalog24
datalog25
datalog26
datalog27

Those logs look nice! A little feedback knock in a couple of them but they are from the throttle mash and very minor corrections that have learned back right away so that's good. You may be ever so slightly overboosting. My phone won't let me look at the Cobb notes to verify though. Can you post up the notes for your map from Cobb's website regarding boost targets?

[KitKatJim]

Here are the notes for my map:

Stage1+Intake 93 MTv310 - Intended for 2012 Subaru Impreza WRX vehicles with COBB Tuning SF Intake or
AEM Cold Air Intake with a stock or cat-back exhaust. 93 or 94 octane fuels. Boost Targets: ~17.5psi peak boost
pressure tapering down to ~14.5psi by the 7000 RPM redline, +/- 1.5psi.

[2Fast4U1DAY]

Originally Posted by KitKatJim

Here are the notes for my map:

Stage1+Intake 93 MTv310 - Intended for 2012 Subaru Impreza WRX vehicles with COBB Tuning SF Intake or
AEM Cold Air Intake with a stock or cat-back exhaust. 93 or 94 octane fuels. Boost Targets: ~17.5psi peak boost
pressure tapering down to ~14.5psi by the 7000 RPM redline, +/- 1.5psi.

Thanks! Yeah logs are good. Enjoy your clean bill of health sir!

[KitKatJim]

Fantastic! Thanks for taking a look.