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amd is the best
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« on: May 29, 2013, 01:27:18 PM »
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Hello all,
I am loosing timing in the top end and it's not being caused by knock. Is there a map/scale responsible for pulling timing out based on intake air temp? I searched through the S4 Wiki and quickly on here and haven't come up with anything.
If there's anything else that would be pulling timing out? Please let me know to check that as well.
For reference:
RS4 K04's
RS4 maf
RS4 injectors
RS4 intercoolers
RS4 Y-pipe
RS4 Airbox
044 Fuel pump
Thanks!
Nick
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« Last Edit: May 29, 2013, 01:44:24 PM by amd is the best »
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2012 Golf TDI
2001 Audi A4 2.8 30v Supercharged
1991 Audi 200 20v
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nyet
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« Reply #1 on: May 29, 2013, 01:28:42 PM »
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Logs?
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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amd is the best
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« Reply #2 on: May 29, 2013, 01:35:29 PM »
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Attached.
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2012 Golf TDI
2001 Audi A4 2.8 30v Supercharged
1991 Audi 200 20v
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amd is the best
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« Reply #3 on: May 29, 2013, 01:44:45 PM »
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Mods added to original post in case that info is needed.
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2012 Golf TDI
2001 Audi A4 2.8 30v Supercharged
1991 Audi 200 20v
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phila_dot
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« Reply #4 on: May 29, 2013, 01:55:31 PM »
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This is proactive to KR.
I can post the details when I get home, but you're better off advancing KFZW(2) if it's retarding for IAT and not knocking.
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amd is the best
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« Reply #5 on: May 29, 2013, 02:02:31 PM »
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This is proactive to KR.
I can post the details when I get home, but you're better off advancing KFZW(2) if it's retarding for IAT and not knocking.
I did mess with KFZWOP/2 as well as KFZW/2. Not sure if that may be hurting something... |
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2012 Golf TDI
2001 Audi A4 2.8 30v Supercharged
1991 Audi 200 20v
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phila_dot
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« Reply #6 on: May 29, 2013, 02:27:32 PM »
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I did mess with KFZWOP/2 as well as KFZW/2. Not sure if that may be hurting something...
I suggest that you stop "messing" with things. Why did you modify KFZWOP(2)? My point was that the IAT correction is pretty good as is in my experience. If there's more to be had at a specific load/rpm point, then it is best applied in KFZW(2) and preserving the IAT correction that will advance/retard ignition angle as needed. |
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amd is the best
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« Reply #7 on: May 29, 2013, 02:34:38 PM »
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I suggest that you stop "messing" with things.
Why did you modify KFZWOP(2)?
My point was that the IAT correction is pretty good as is in my experience. If there's more to be had at a specific load/rpm point, then it is best applied in KFZW(2) and preserving the IAT correction that will advance/retard ignition angle as needed.
Thank you for the suggestion. I got the hint to "mess" with OP from a "professionally mapped" BIN file. I will go back to stock OP timing maps and tweak KFZW/2 as advised. I understand the point of IAT based timing adjustment however I wanted to adjust its strength. I know from a tuning standpoint that the engine can have much more timing then it currently has at the given IAT and I am just curious as to where my timing is going in the top end when knock was relatively low in comparison. When comparing it to other logs that I have from my APR software, the only difference I can see is IAT. That's why I asked about that first. |
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« Last Edit: May 29, 2013, 02:45:02 PM by amd is the best »
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2012 Golf TDI
2001 Audi A4 2.8 30v Supercharged
1991 Audi 200 20v
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phila_dot
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« Reply #8 on: May 29, 2013, 02:37:43 PM »
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The variable is dzwwl @ 0x380DA5 8 bit factor 0.75
The map is KFZWWLNM (nmot, tans) with load weighting factor FZWWLRLN (nmot, rl).
dzwwl also includes coolant temp correction KFZWWLRL (tmot, rl).
dzwwl = KFZWWLRL + (KFZWWLNM * FZWWLRLN)
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« Last Edit: May 29, 2013, 02:41:46 PM by phila_dot »
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amd is the best
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« Reply #9 on: May 29, 2013, 02:51:19 PM »
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Thank you and +rep. I will do as advised and revert the OP maps first and go from there. Then I'll tweak dzwwl if needed.
Thanks again!
If anyone else sees anything wrong in that log, please do advise.
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2012 Golf TDI
2001 Audi A4 2.8 30v Supercharged
1991 Audi 200 20v
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nyet
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« Reply #10 on: May 29, 2013, 03:18:06 PM »
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Thanks phila. I really should add this to the tuning wiki.
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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nyet
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« Reply #11 on: May 29, 2013, 03:19:52 PM »
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Thank you and +rep. I will do as advised and revert the OP maps first and go from there. Then I'll tweak dzwwl if needed.
Thanks again!
If anyone else sees anything wrong in that log, please do advise.
odds are, you should just be able to increase requested timing, up until non-zero CF, which should more or less be the same for most IATs given the stock KFZWWLNM et al. |
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Logged
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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amd is the best
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« Reply #12 on: May 29, 2013, 03:31:54 PM »
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odds are, you should just be able to increase requested timing, up until non-zero CF, which should more or less be the same for most IATs given the stock KFZWWLNM et al.
My requested timing in that log is much higher than actual in the top end though. Almost 8* difference between 5000-6750. |
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2012 Golf TDI
2001 Audi A4 2.8 30v Supercharged
1991 Audi 200 20v
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nyet
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« Reply #13 on: May 29, 2013, 04:21:54 PM »
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That log has a TON of KR induced retard... nothing to do with IAT.
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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amd is the best
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« Reply #14 on: May 29, 2013, 04:45:41 PM »
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That log has a TON of KR induced retard... nothing to do with IAT.
When comparing it to a log from my "safe and conservative" APR map the knock voltages arn't far off. That's why I'm confused. APR log attached. Only HUGE difference is IAT... unless I'm missing something else. Please advise. |
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Logged
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2012 Golf TDI
2001 Audi A4 2.8 30v Supercharged
1991 Audi 200 20v
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