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How To Tune an Evo

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Old Oct 28, 2017, 03:22 PM
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No. You didn't remove it from the ECU, just "read" it.
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Old Nov 3, 2017, 05:26 PM
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Can anyone link me to tool that's used frequently on here that allows you to upload log files and create a graph, with a link that you can share?
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Old Nov 3, 2017, 05:40 PM
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Originally Posted by butte View Post
Can anyone link me to tool that's used frequently on here that allows you to upload log files and create a graph, with a link that you can share?
datazap.me
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Old Nov 4, 2017, 12:32 PM
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Originally Posted by razorlab View Post
datazap.me
+1 that's what i use with BainsTuned and it's awesome. Very helpful.
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Old Jun 18, 2018, 04:41 PM
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Is it just me or are none of the pictures visible?
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Old Jun 18, 2018, 05:55 PM
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Originally Posted by unfocus15 View Post
Is it just me or are none of the pictures visible?
Well, the thread is 11yrs old.
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Old Sep 12, 2018, 05:45 PM
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Any chance we can recover those pictures? I really would like to have a look at other peoples timing and afr maps as I think that I am way to conservative with my tuning
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Old Sep 12, 2018, 06:23 PM
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Just to throw my numbers in. (EVO 6 GSR with 3 inch turboback and 20psi boost) I archived around 320 bhp with this at 20 psi boost.
After hotwireing my walbro 255l pump I am still redialing it in as i actually have leaner afr and a bit knock.




My resulting AFR out of this mapping are as follows.



And timing


And my load over rpm as reference:



I am running on 100 octane fuel here in Japan, so its probably okay to be a bit leaner. At least I have no knock and my exhaust temp is not going above 900 degC on track days.
In these logs I only hit 210 load so my boost setting seems to be off. (only got 18psi of peak boost)

If the internet is right than my AFRs are way to lean. But that said, most of the information is for the US and 91 pump fuel
I'll be doing a few more runs these days and make sure to have zero knock for the upcoming track day.

Any thoughts or recommendations?
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