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marcellus
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« on: June 14, 2012, 08:29:14 PM »
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I have a few questions in regards to my logs:
Looking at my MAF, I am not sure what to do about it. I think it is reading a bit high. I have been contemplating scaling it down -10% but I am unsure if its really needed or a good idea.
The CF shooting up after I let off strikes me as weird. Any thoughts on that? My timing map is a bit aggresive and I have been dialing it back.
Also the knock voltages from bank to bank are all sorts of WTF...
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« Last Edit: June 14, 2012, 08:57:02 PM by marcellus »
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nyet
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« Reply #1 on: June 15, 2012, 12:12:15 AM »
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That log is almost entirely useless.
Stay in one gear, go wot from 2.5k to redline.
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marcellus
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« Reply #2 on: June 15, 2012, 11:14:43 AM »
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I did a second gear pull and saw some things I definately didnt like. I dont know if it was bad gas or what, but I nver logged CF that high before. I will flash to a much more tame set of timign maps and repost.
From the log I posted you dont see anything wrong with at least the MAF readings? A bit high?
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marcellus
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« Reply #3 on: June 21, 2012, 06:35:53 PM »
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What I would think of as a better log. I had to adjust the timing maps, some. I also put the N75 on the external wastegate, and I have a MBC on the VGT actuator. Boost a bit low on this pull, but it is safe. I have been slowly adding to the KFLDRL.
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marcellus
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« Reply #4 on: July 26, 2012, 10:36:12 PM »
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I am still trying to get things sorted here. I cant seem to get my fuel back down in spec. Narrowband and the in cockpit widepand both show the car going stupid rich at WOT. I just revised my tune: lowered min injection, lowered MAX load to be more in line with what I am runnign now. I also am now running a MBC on the wastegate. Max boost is set to around 24psi.
I have the VGT locked open to slow the spool down and to help with troubleshooting, so the LDRXN will have to be changed again once I can figure out how to fix the fueling.
Help please.
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prj
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« Reply #5 on: July 27, 2012, 02:07:55 AM »
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Have you pressure tested your car? Are you 100% sure there are no leaks and it holds pressure?
If yes and it is going rich on high loads, then your krkte and tvub are wrong or your MAF scaling is wrong.
Good idea to scale one at a time.
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prj
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« Reply #6 on: July 27, 2012, 02:10:24 AM »
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Actually disregard that.
Your requested lambda is 0.69 - 10 AFR.
Log more and see where that is coming from.
Your CF when you are lifting can be because of fuel exploding and shooting through the exhaust etc...
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marcellus
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« Reply #7 on: July 27, 2012, 08:43:49 AM »
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I dont see where the requested went that low. I checked it with xPLOT and I have been reviewing the CSV.
I did another log this morning. This one is with the tweaks I mentioned earlier. It did pull a lot better through the revs, but still was pretty rich. The pull was in second gear. Idle was a bit choppy at times, and I was seeing -10% corrections. I am fine with that right now, since I am sure I am going to have to mess with the TVUB/FKKVS/KFKHFM once the fueling is all figured out anyhow.
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nyet
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« Reply #8 on: July 27, 2012, 09:25:26 AM »
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so pull 10% fuel out of krkte.
Also, it looks like you are maxing out your MAF.
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marcellus
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« Reply #9 on: July 27, 2012, 09:32:11 AM »
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How do you suggest fixing the MAF? Scale MLHFM back a few percentage that all the numbers are smaller?
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nyet
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« Reply #10 on: July 27, 2012, 09:51:31 AM »
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Depends if you are maxing the voltage or not.
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marcellus
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« Reply #11 on: July 27, 2012, 10:04:49 AM »
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Right now I am using the Scaling from Tony's stg 3 file. In what circumstances would I need to move the scaling around?
add...Last night while I was lgging I did see the AFR start to go lean 12.xx-ish towards the end of a few of my pulls. Brainstorming on what you said and what I saw it kind of adds up. What do you think?
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« Last Edit: July 27, 2012, 10:11:30 AM by marcellus »
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nyet
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« Reply #12 on: July 27, 2012, 10:15:56 AM »
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I think you might need a bigger MAF housing :/ but that is a good thing. it means you're making a lot of power  |
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prj
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« Reply #13 on: July 27, 2012, 11:29:03 AM »
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I dont see where the requested went that low. What's this then? 0.783691406
0.783691406
0.783203125
0.783203125
0.782714844
0.782714844
0.782470703
0.782470703
0.705322266
0.705322266
0.693359375
0.693359375
0.693115234
0.693115234 |
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marcellus
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« Reply #14 on: July 27, 2012, 11:37:21 AM »
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I didnt say that the requested did not go as low as you said, I said I didnt see where it went that low. Maybe my wording was off....REPHRASE: Where did you go to see the requested going that low? I normally look at the xPLOt logs and, and I look at the actual log data itself and I havent seen anything like what you said.
NVM...I found it. Its towards the middle of the log. Could that have been a reaction to the CF?
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« Last Edit: July 27, 2012, 11:41:32 AM by marcellus »
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