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 Post subject: 2020 STi FP Blue Tune and Datalog Question
PostPosted: Thu Jul 04, 2024 2:37 pm 
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Joined: Fri Apr 12, 2024 6:25 am
Posts: 8
Hi,

Could someone please advise me on my current tune. I know It still needs some fine tuning but I am having an issue above 5.5k rpm where WGDC is going to 0%. From what I can tell I am not hitting any torque limits and I can not figure out for the life of me what is causing this.

Setup is...

FP blue, Cobb SF intake, turboxs downpipe, ID 1050, AEM 340, on 93 oct

Here is a link to the hosted files

https://drive.google.com/drive/folders/1PaszrmqTi2C7pTWyfcOXKPPIbPuKaD1s?usp=sharing


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 Post subject: Re: 2020 STi FP Blue Tune and Datalog Question
PostPosted: Tue Jul 23, 2024 8:53 am 
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Joined: Sat Jul 06, 2013 12:55 pm
Posts: 3297
Location: NI
i think you're logging way too much "similar" stuff here - also doesn't look like fast polling is enabled in your logger?

First job is cut out all the duplicate log items:
Feedback Knock Correction 1 byte
Feedback Knock Correction 4 byte

Pick one and stick with it, same applies to fine learning knock you dont need all 4 versions of it. Manifold absolute/relative pressure just grab 4byte absolute and save on another 4 requests. With that and enabling fast polling you should have a much higher resolution of what's going on in the map. Have a look at your IAT/ECT based comp tables for boost target/wastegate duty/turbo dynamics - it's possible they are in play here also your cumulative range might also be a small factor but i wouldn't imagine its the issue. Maybe add atmospheric pressure to the logs and see what that's doing to things. Also good idea to log the final fueling base to compare against your wideband/front o2 readings.

_________________

Good luck and may the logs be ever in your favour!


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 Post subject: Re: 2020 STi FP Blue Tune and Datalog Question
PostPosted: Fri Oct 18, 2024 8:11 pm 
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Joined: Fri Apr 12, 2024 6:25 am
Posts: 8
bludgod wrote:
i think you're logging way too much "similar" stuff here - also doesn't look like fast polling is enabled in your logger?

First job is cut out all the duplicate log items:
Feedback Knock Correction 1 byte
Feedback Knock Correction 4 byte

Pick one and stick with it, same applies to fine learning knock you dont need all 4 versions of it. Manifold absolute/relative pressure just grab 4byte absolute and save on another 4 requests. With that and enabling fast polling you should have a much higher resolution of what's going on in the map. Have a look at your IAT/ECT based comp tables for boost target/wastegate duty/turbo dynamics - it's possible they are in play here also your cumulative range might also be a small factor but i wouldn't imagine its the issue. Maybe add atmospheric pressure to the logs and see what that's doing to things. Also good idea to log the final fueling base to compare against your wideband/front o2 readings.


Just to update this thread but on the 2020 and possible 2019 the definitions for the WGDC tables are scaled wrong. When I was trying out hp tuners before going open source, I set WGDC to 0% because I changed the boost solenoid and needed to tune for it. When I read the flashed tune in ecuflash it kept that 0 values past 5.5k. long story short I have a new definition posted that is the correct definition and 32bitbase for a 2020 sti


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