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FlyboyS4
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« Reply #450 on: July 10, 2015, 02:03:03 PM »
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Here's the Nef-14a vs Nef-4 AFR's.  What's I find interesting is that the EGT curve is nearly the same for each tune, so apparently something else is also coming into play to drive the AFR rich with the most recent revisions. I guess that would possibly be the higher engine load. BTS variables have been added to my config file for the next time out. Nef 4 vs Nef 14a additional charts |
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therealnap0le0n
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« Reply #451 on: July 10, 2015, 03:18:18 PM »
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Are those curves logged from your wideband?
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FlyboyS4
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« Reply #452 on: July 10, 2015, 04:37:04 PM »
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Are those curves logged from your wideband?
Yes |
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FlyboyS4
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« Reply #453 on: July 10, 2015, 08:02:46 PM »
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Nef-14b data file includes: 1. Revert back to the Nef-12G DIMX profile. 2. Increase of LDRXN below 2000 rpm. - This change does seem to have smoothed out the part throttle acceleration at rpm's around 1800-2000. Only drove a short time but that's the initial impression over the standard route I take. Here are screen shots of the current settings:     TABGBTS is set to 800C.
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nyet
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« Reply #454 on: July 10, 2015, 11:55:21 PM »
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TABGBTS is set to 800C.
Interesting. I don't see any ATR but BTS is triggering pretty low (725C). |
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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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therealnap0le0n
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« Reply #455 on: July 11, 2015, 11:22:19 PM »
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Nef-14b data file includes: 1. Revert back to the Nef-12G DIMX profile. 2. Increase of LDRXN below 2000 rpm. - This change does seem to have smoothed out the part throttle acceleration at rpm's around 1800-2000. Only drove a short time but that's the initial impression over the standard route I take. Here are screen shots of the current settings: [img]http://www.myaudis4.com/tuning_images/nef14/nef-14b_ldrxn.png[img] [img]http://www.myaudis4.com/tuning_images/nef14/nef-14b_dimx.png[img] [img]http://www.myaudis4.com/tuning_images/nef14/nef-14b_kfzw.png[img] [img]http://www.myaudis4.com/tuning_images/nef14/nef-14b_kflbts.png[img] TABGBTS is set to 800C. i did a pull with these settings here are my results, it seems that I have a bit of timing being pulled to knock and still seem to have a severe boost spike with DIMX settings above stock this is with the current community tune settings Jeff posted |
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nyet
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« Reply #456 on: July 12, 2015, 12:41:59 PM »
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And interestingly a lot of real EGT activity which isn't adding fuel via ATR
Also I max is high, even on flyboy's car, so it is no surprise you are overboosting even more.
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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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therealnap0le0n
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« Reply #457 on: July 12, 2015, 01:05:08 PM »
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And interestingly a lot of real EGT activity which isn't adding fuel via ATR
Also I max is high, even on flyboy's car, so it is no surprise you are overboosting even more.
yea, I will pull imax down uniformly. I did notice the difference in bts enrichment in his car vs mine. As of right now I'm running an mbox bin that has the MAF adjustments for a Bosch sensor but it is not the bin Daz posted in the beginning of the thread. I do have that bin and can compare its egt enrichment tables to mine . |
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Lost
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« Reply #458 on: July 12, 2015, 03:19:49 PM »
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Nef-14b data file includes: 1. Revert back to the Nef-12G DIMX profile. 2. Increase of LDRXN below 2000 rpm. - This change does seem to have smoothed out the part throttle acceleration at rpm's around 1800-2000. Only drove a short time but that's the initial impression over the standard route I take. Here are screen shots of the current settings: TABGBTS is set to 800C. Your DIMX is too high everyware. What is the baropressure when those logs are taken?? If it is low - much under usual - you can expect when baropressure raises your overboost is gonna be even higher and car gonna run leaner. Turn down DIMX from 2700-5000rm you will gain some fuel IDC and overfueling is EGT protection. As suggested BTS upp to 800 and do LOG again. Also i would add more fuel in spool. |
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« Last Edit: July 12, 2015, 03:22:19 PM by Mocke »
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FlyboyS4
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« Reply #459 on: July 12, 2015, 04:37:09 PM »
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Your DIMX is too high everyware. What is the baropressure when those logs are taken?? If it is low - much under usual - you can expect when baropressure raises your overboost is gonna be even higher and car gonna run leaner.
Turn down DIMX from 2700-5000rm you will gain some fuel IDC and overfueling is EGT protection. As suggested BTS upp to 800 and do LOG again.
Also i would add more fuel in spool.
My car is not overboosting with these settings, it's therealnap0le0n that is seeing the overboost. I have TABGBTS set to 800C. What method do you recommend for adding fuel during spool? Thus far we've addressed fueling via LAMFA and only just started to consider possibly using BTS. |
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nyet
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« Reply #460 on: July 12, 2015, 08:57:38 PM »
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My car is not overboosting with these settings
IIRC your last few logs had significant overshoot. What method do you recommend for adding fuel during spool? Thus far we've addressed fueling via LAMFA and only just started to consider possibly using BTS.
Unfortunately BTS can't really be used during spool.. your only choice is LAMFA. |
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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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Lost
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« Reply #461 on: July 13, 2015, 01:01:03 AM »
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You do overshoot all over the place. And it leans your AFR. Use FKKVS for adding fuel before and under spool.
Look at your injectors where in ms it comes in time. Then you tune FKKVS in those regions.
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FlyboyS4
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« Reply #462 on: July 13, 2015, 03:50:10 AM »
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IIRC your last few logs had significant overshoot. Ok. Like I said above, I went back to the Nef-12G DIMX settings that got this feedback, but I can resume making changes if needed. Unfortunately BTS can't really be used during spool.. your only choice is LAMFA. Ok. I'll be unable to do any updates for a couple of weeks but will plan some additional changes to implement shortly. |
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therealnap0le0n
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« Reply #463 on: July 13, 2015, 05:42:21 AM »
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IIRC your last few logs had significant overshoot.
Unfortunately BTS can't really be used during spool.. your only choice is LAMFA.
you're correct but I've been working on my tune as we go along and have managed the overshoot a bit with stock DIMX settings. I've been hesitant to post logs of those runs as to not clutter the thread with alternative settings from flyboy In order to really compare a "universal" community tune. I think flyboy will be taking some time for personal things so I'll try to continue where he left off and between the two cars come up with a happy medium. I'll take some time tonight to reread the boost PID section so I can tackle that, |
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« Last Edit: July 13, 2015, 05:44:42 AM by therealnap0le0n »
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therealnap0le0n
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« Reply #464 on: July 13, 2015, 05:46:29 AM »
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now that this is getting really in-depth what are we considering "stage 1" and "stage 2" of the community tune? And are we going to take on a "stage 3" major hardware upgrades tune ie: turbo, injector, etc?
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