K92
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« Reply #75 on: April 07, 2020, 02:37:28 AM »
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I am not sure, if my calculations are right but i took TVUB from here: http://nyet.org/cars/info/ev14-latency/550cc.pngTo be sure i Checked Calibration summary. As 3.1BAR OFFCOMP is 1.1768 I calculated 3BAR OFFCOMP which is 1.1388 After calculating Tvub i get : 2.49, 1.63, 1.18, 0.898 |
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xsix
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« Reply #76 on: April 07, 2020, 03:51:16 AM »
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These are EV14 550cc 0280158117 bosch.
I calculated theoretical krkte 0,059244 , tvub from datasheet 3 bar : 2.7 , 1.54, 1.12, 073, 0523 .
For maf i used mafadjust and quick log with 2nd gear ps_W was higher than actual boost, also reg and actual afr was out of whack . Then i tried manual calculation of maf increasment and every time i got smaller results( i still dont understand how mafadjust calculates 60 to 70 with 36% increasment ) and made run. Ps_W was slightly under actual boost which per tuning wiki should be scaled correctly, but my req/actual afr went even more out of whack and afr was lean.
Can You post your maf setting ? And log file with ps_w. Please, thank you  |
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K92
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« Reply #77 on: April 10, 2020, 11:18:52 AM »
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Can You post your maf setting ? And log file with ps_w. Please, thank you I think there is no point as im pretty sure fueling was off. As for now i changed back stock maf to get fueling right, and then will change to new maf. |
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K92
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« Reply #78 on: April 12, 2020, 09:50:09 AM »
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Got Idle and Partial LTFT sorted out. Now will start working on FKKVS.
Can someone help me out with NOLRA location in my file, please ?
Original bin attached
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BlackT
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« Reply #79 on: April 12, 2020, 10:46:00 AM »
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0X18F3E
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K92
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« Reply #80 on: April 12, 2020, 11:01:27 AM »
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0X18F3E
Thank You ! |
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BlackT
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« Reply #81 on: April 13, 2020, 01:56:12 AM »
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One more hint, your ECU have 24(36dec) on NORLA
Set it to 27(dec 39) to disable LTFT
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K92
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« Reply #82 on: April 13, 2020, 02:07:59 AM »
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One more hint, your ECU have 24(36dec) on NORLA
Set it to 27(dec 39) to disable LTFT
Yes, figured it out already. Thanks again ! |
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xsix
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« Reply #83 on: April 13, 2020, 04:20:10 AM »
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One more hint, your ECU have 24(36dec) on NORLA
Set it to 27(dec 39) to disable LTFT
My factory NOLRA is set to 36 (decimal) and to disable LTFT I am setting it to 7 (decimal) . It seems that work good too. It is possible ?  |
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K92
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« Reply #84 on: April 13, 2020, 05:22:19 AM »
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My factory NOLRA is set to 36 (decimal) and to disable LTFT I am setting it to 7 (decimal) . It seems that work good too. It is possible ? As i have been reading from another threads, they might be different in different files. |
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K92
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« Reply #85 on: April 13, 2020, 10:18:39 AM »
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So my LTFT-s are now 0 and after couple of configurations to FKKVS my STFT are +-0.8-2.3%. Can i say now that im done with FKKVS ?
I guess the next step should be check if my WOT actual afr meets my req ? My KFKHFM is all 1 right now. What is the tuning philosophy behind the KFKHFM? Tweak only high load areas, where actual afr dont meet req ? Btw if someone could share aadress for my file for NMAX. Thanks
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nyet
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« Reply #86 on: April 13, 2020, 10:26:20 AM »
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actual should always meet req.
Thats what trims are doing.
Tune KFKHFM until STFTs are closer to zero everywhere.
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K92
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« Reply #87 on: April 13, 2020, 11:07:47 AM »
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actual should always meet req.
Thats what trims are doing.
Tune KFKHFM until STFTs are closer to zero everywhere.
How high fluctuation is considered OK ? If i understood it right if my trims are ok then my afr should be the same as my req. Tho i am installing new rods new week. A little scared to do WOT runs with this turbo ( baseboost 1 bar ) , I am not sure if OEM rods can handle this torque. And thanks for withstanding my stupid questions. |
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nyet
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« Reply #88 on: April 13, 2020, 11:15:30 AM »
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How high fluctuation is considered OK ? If i understood it right if my trims are ok then my afr should be the same as my req.
Correct feedforward calibration will ensure trims don't have to adjust fuel on the fly as much. You decide how much you trust the O2 PID. Tho i am installing new rods new week. A little scared to do WOT runs with this turbo ( baseboost 1 bar ) , I am not sure if OEM rods can handle this torque.
Based on what? How much torque do you think you'll make? How much do you think your rods can handle? |
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K92
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« Reply #89 on: April 13, 2020, 11:23:33 AM »
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Correct feedforward calibration will ensure trims don't have to adjust fuel on the fly as much. You decide how much you trust the O2 PID.
Based on what? How much torque do you think you'll make? How much do you think your rods can handle?
This was assumption, as the difference with k04 is huge regarding pull even tho im driving with base boost. From the info i have found the safe point is 300tq |
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« Last Edit: April 13, 2020, 11:28:05 AM by K92 »
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