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Old Yesterday, 11:28 AM   #1776
Straight6
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Quote:
Originally Posted by ToastyWRX View Post
1st post here, got my 2015 WRX in July, completely stock. Just last week I got an AP and this week I installed the Cobb BigSF intake. I'm running the Stage 1+ 91 octane HWG.

https://datazap.me/u/toastlover/cobb...5-8-9-10-18-19

From what I can tell (by reading a bunch of these logs in this and the Cobb development thread), everything seems pretty normal.
I was getting a bit nervous because my AF Learning 1 was hanging out at ~ +17 cruising. My daily commute is only 3 miles though so the car was never really warmed up, plus I only put maybe 70 miles on it since flashing. Drove for quite a while this morning on the freeway when I got off work to get a good 3rd gear pull though and looks good.

Anyway, if anybody notices anything off with this log, I'd appreciate a response. I am a bit curious if the boost is supposed to drop as it approaches redline.
I am no expert but that is super lean, underboosting big time and knocking in the higher RPM...
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Old Yesterday, 12:23 PM   #1777
YungBoba
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WR Blue Pearl

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Don't know what the ambient temp was for his pull but manifold temps were in the mid 30s so the cold weather may have played a part in the low boost. It does seem very lean though.
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Old Yesterday, 03:19 PM   #1778
Wrex85S
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Member#: 478447
Join Date: Nov 2017
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Location: CT
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2018 WRX
WR Blue

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Originally Posted by Straight6 View Post
There are many logs here and I have done plenty myself. I prefer the MAP tune but the HWG COBB v300 maps are just as strong. MAP is smoother for sure but I was getting too much cruise knock driving around with both. E tune eliminated that issue and it picked up a lot more power in the midrange. I would honestly be very happy with the MAP tune power wise if it wasn't for the random knock issues. I like this tune a lot.
thank you! and yeah that is my bad for not scrolling through 71 pages I should have read the fking posts!

a protune with cobb might be a better/safer process than OTS then? (New to the modding my daily scene...)
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Old Yesterday, 03:30 PM   #1779
Straight6
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Originally Posted by Wrex85S View Post
thank you! and yeah that is my bad for not scrolling through 71 pages I should have read the fking posts!

a protune with cobb might be a better/safer process than OTS then? (New to the modding my daily scene...)
You can run the MAP tune. It should be fine and with the AP you can monitor lots of things. I would suggest reading this thread. I learned a lot just in this very thread. An etune is just more precise to your specific car. You can buy the AP from MAP and then Ian will email you their OTS tune for free. I would start from there and if you run into issues you can move on to a etune.
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Old Yesterday, 04:45 PM   #1780
GlarryHoodDIT
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Location: Colorado
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2016 WRX
Phatron Tuned

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Quote:
Originally Posted by ToastyWRX View Post
1st post here, got my 2015 WRX in July, completely stock. Just last week I got an AP and this week I installed the Cobb BigSF intake. I'm running the Stage 1+ 91 octane HWG.

https://datazap.me/u/toastlover/cobb...5-8-9-10-18-19

From what I can tell (by reading a bunch of these logs in this and the Cobb development thread), everything seems pretty normal.
I was getting a bit nervous because my AF Learning 1 was hanging out at ~ +17 cruising. My daily commute is only 3 miles though so the car was never really warmed up, plus I only put maybe 70 miles on it since flashing. Drove for quite a while this morning on the freeway when I got off work to get a good 3rd gear pull though and looks good.

Anyway, if anybody notices anything off with this log, I'd appreciate a response. I am a bit curious if the boost is supposed to drop as it approaches redline.
EDIT: just realized I forgot to add comm fuel final AFR to my log. Next one I will.
You either have a leak or the Big SF intake is just atrocious. You're care is carrying AF Learning 1 while in open-loop and you're still running at least 1.5 points leaner than intended. Your map is targeting probably 11.1~ and you're hitting 13.5 in some places- which is probably why you are knocking at 5400.

At first you hit boost target but are unable to sustain it and it drops off really quick. Might be another indication of a leak. Check the installation on the Big SF first.
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Old Yesterday, 09:43 PM   #1781
ToastyWRX
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Quote:
Originally Posted by GlarryHoodDIT View Post
You either have a leak or the Big SF intake is just atrocious. You're care is carrying AF Learning 1 while in open-loop and you're still running at least 1.5 points leaner than intended. Your map is targeting probably 11.1~ and you're hitting 13.5 in some places- which is probably why you are knocking at 5400.

At first you hit boost target but are unable to sustain it and it drops off really quick. Might be another indication of a leak. Check the installation on the Big SF first.
Thanks, I did the intake myself and I had a tough time connecting to the turbo inlet, I'll check it out to make sure I didn't leave a leak there.
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Old Yesterday, 09:53 PM   #1782
GlarryHoodDIT
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Phatron Tuned

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With AF Learning that high at cruise it really indicates some kind of leak. Your car was constantly adding 17% more fuel in order to hit correct AFRs at low load, so when you went wide open throttle and transitioned into open loop there was no way for your car to correct the problem on its own (AF Learning is disabled during open loop fueling), hence you running really lean.
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Old Yesterday, 10:30 PM   #1783
ToastyWRX
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Thanks, I'll definitely get it on ramps and make sure all the connections are tight. I work the next 4 nights in a row and have school in the mornings so I probably won't get to it until Thursday. I wont go into boost until I've fixed it.
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