denniss112
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Audi TT 99' | 180+HP FWD
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« Reply #15 on: June 21, 2022, 10:43:32 AM »
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I have changed the map arround, and thanks to Blazius I now have PID logged. The load, boost and fuel look spot on. I will make a second map for boost capped to 1,2 bar.. I dont think the K03 will have much left at this point(its a old one perfect for testing).
If you agree, the only thing left is ignition.. Are there any tips you can give me when tuning these values as close to 0 as possible?
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nyet
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« Reply #16 on: June 21, 2022, 12:52:49 PM »
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dont touch anything until you fix boost req and get lde to zero
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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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denniss112
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Audi TT 99' | 180+HP FWD
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« Reply #17 on: June 21, 2022, 01:59:32 PM »
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dont touch anything until you fix boost req and get lde to zero
lde is basically the output of BoostActual - BoostDesired correct? And is this value only used in PID scheduling? Does this also mean, if I adjust LDRXN to follow actual, that lde will stay or be close to zero? |
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« Last Edit: June 21, 2022, 02:03:07 PM by denniss112 »
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nyet
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« Reply #18 on: June 21, 2022, 04:11:51 PM »
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req boost should always be pretty much under whatever 100WGDC can do
if you let lde be constantly non-zero you'll get trim activity that you dont want.
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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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denniss112
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Audi TT 99' | 180+HP FWD
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« Reply #19 on: June 22, 2022, 07:55:03 AM »
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req boost should always be pretty much under whatever 100WGDC can do
if you let lde be constantly non-zero you'll get trim activity that you dont want.
So that would mean I cant get any more then 1,1 - 1,2 bar out of the turbo without the WGDC increasing and trimming fuel? |
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nyet
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« Reply #20 on: June 22, 2022, 08:03:34 AM »
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wgdc will max out at 100, i-max trim may max out and eventually throw a code.
fuel will be fine.
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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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Blazius
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« Reply #21 on: June 22, 2022, 08:59:50 AM »
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So that would mean I cant get any more then 1,1 - 1,2 bar out of the turbo without the WGDC increasing and trimming fuel?
K03 is a 195-200 HP rated turbo , dont try to push it to do something it cant. http://nefariousmotorsports.com/forum/index.php?topic=20256.0title=Look at the compressor map if you wish but even from the log you can see 100 wgdc and what it will do up top, first get request there or lower then you can fix other stuff. |
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denniss112
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Audi TT 99' | 180+HP FWD
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« Reply #22 on: June 22, 2022, 03:57:26 PM »
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I understand that they dont make lots of power, but there are allot of K03's running 180-190 load on 1,3 bar. Thats my goal, only thing I just cant get to work is the dang WGDC.. I have been doing multiple logs a day with small changes. I get fuel, boost and ignition to where I want it to be, its just that last step that is not making any sense to me. |
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denniss112
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Audi TT 99' | 180+HP FWD
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« Reply #23 on: June 22, 2022, 04:02:31 PM »
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This is basically where I am at.. laptop battery was dying and got fed up, so I stopped for today.
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nyet
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« Reply #24 on: June 22, 2022, 05:00:51 PM »
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closer.
you're seeing overshoot on ramp, you can bump peak boost if you want, or bring down imx a bit.
prj will kill me for suggesting you fix overshoot/undershoot with imx but it is what it is.
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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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denniss112
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Karma: +7/-1
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Audi TT 99' | 180+HP FWD
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« Reply #25 on: June 22, 2022, 05:12:21 PM »
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closer.
you're seeing overshoot on ramp, you can bump peak boost if you want, or bring down imx a bit.
prj will kill me for suggesting you fix overshoot/undershoot with imx but it is what it is.
Why would he? Does it not say in the wiki to do the same thing with imx when you see over/under boost? After fixing the overshoot, could it then be considered good? |
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fknbrkn
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mk4 1.8T AUM
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« Reply #26 on: June 23, 2022, 03:12:07 AM »
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2 pages of nothing
There is no overshoot
just move kfldimx axis.. select all axis values higher than 400 or 500 hpa, move them 1 row up so you delete this 400 or 500 and double last with 1100, change last row with 1400 hpa so you came with last 2 rows of stock 1100hpa and new 1400. copy stock map values accordingly new axis. do not change stock values at stock axis. fill last row of 1400 hpa with 95%
run it. if it overshoots - taper values a bit in corresponding area
THATS ALL damn .. no rocket science here
Do not forget to revert back all changes youve made cos it gives you nothing with 0 ignition @mid and those tiny turbo
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prj
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« Reply #27 on: June 23, 2022, 06:41:15 AM »
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Letting shit run on I limiter is dumb, especially coupled with adaptation, it will just adapt it higher over time, and the problem will be back.
Overshoot should be controlled with P/D mostly.
Of course if I limit is skyhigh then you also will get problems.
IMO in the OEM PID the I part is in general way too aggressive.
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nyet
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« Reply #28 on: June 23, 2022, 08:19:00 AM »
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Letting shit run on I limiter is dumb, especially coupled with adaptation, it will just adapt it higher over time, and the problem will be back.
Sort of. It depends how far off it is, in my experience. If it is close, adaptation will do exactly what it is supposed to. If it is too far off, adaptation will never do the right thing. |
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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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denniss112
Full Member
Karma: +7/-1
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Posts: 114
Audi TT 99' | 180+HP FWD
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« Reply #29 on: June 23, 2022, 12:35:53 PM »
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This is where I landed, and frankly I am happy and done. The turbo is allready due for a change soon. Results are from a very hot day (30C is pretty much very hot for our country).
Thanks to nyet and Blazius for actualy helping me. I know its not perfect.
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