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Old 02-27-2006, 05:04 PM   #1
TravisSTi
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2004 Subaru WRX STi
WRB - GTX30r

Default Analyze my UTEC logs

I have several maps that were tuned by TurboXS for my friends MY2004 STi(listed below). I bought all his parts and put them on mine when he sold his car. These maps were tuned in Augest. I know I need to adjust the TPS sensor so it shows 100%.

1. Map Comments:-[16psi peak 11:1 afr]
2. Map Comments:-[-1 degree ]
3. Map Comments:-[-1 deg +.4 fuel Low boost]
4. Map Comments:-[really low boost]
5. Map Comments:-[low boost -2 deg]


The below pulls are using Map #2. I am worried about the Knock Counts I got around ~5600. I am going to have to try Map #3 and see how the boost is. Also I don't have the ABC valve installed, I have a Apexi AVCR to install next weekend instead. Boost hits 18.2 at points, and this is on the 16psi map. Is this most likly the cold air? Any pointers or Tips on how I can stop the knock? Does everything else look good?

Mod List:

TurboXS UTEC
TurboXS RFL TBE w/Hi-Flow Cat
TurboXS Shorty Intake
TurboXS Tuner Wideband

Thanks,

Travis



Outside Tempature: 40F

3rd Gear:

Code:
                   Load Knock                Mod   Mod         Mod   WB 
 RPM   MAP  MAF TPS Site Count  Ign#1  Inj#1  Ign   Fuel Boost  MAF   AFR
       psia  V   %               deg   duty   deg    %   (CL)    V  

 2916  -8.7 2.6  23  00    00   +39.8   14.6 ECU.   +0.0 ECU.   2.6  14.58
 2705  -6.7 2.6  23  00    00   +37.8   14.5 ECU.   +0.0 ECU.   2.7  14.74
 2770  -4.0 2.9  29  10    00   +30.4   21.6 +28.0  +1.6 ECU.   3.0  14.42
 2871  -1.6 3.0  26  10    00   +26.3   23.0 +27.5  +1.1 ECU.   2.9  13.81
 2939  -0.8 2.6  16  00    00   +37.8   14.4 ECU.   +0.0 ECU.   2.6  13.23
 3129  +0.2 3.1  40  10    00   +28.9   30.3 +27.0  -0.3 ECU.   3.2  13.59
 3217  +2.1 3.4  44  20    00    +8.5   34.6 +26.0  -0.7 360.00 3.4  14.45
 3443  +4.1 3.7  50  50    00   +14.6   48.9 +15.8  +1.2 375.00 3.8  14.00
 3542  +8.0 3.9  45  70    00   +11.9   56.3 +15.0  +2.2 362.50 3.9  12.96
 3940 +13.9 3.9  44  80    00   +14.8   59.4 +15.6  +1.4 360.00 4.0  11.73
 4105 +15.1 4.0  57  80    00   +16.1   66.2 +16.0  +1.1 392.50 4.1  11.58
 4317 +15.5 4.1  69  80    00   +15.9   71.8 +16.4  +1.3 422.50 4.2  11.67
 4480 +15.5 4.2  68  90    00   +15.8   81.9 +17.1  +1.8 420.00 4.3  11.62
 4761 +16.1 4.3  68  90    00   +16.7   85.8 +18.1  +0.2 420.00 4.2  11.27
 5035 +17.2 4.3  73  90    00   +17.9   84.2 +18.4  -0.7 432.50 4.2  11.12
 5175 +16.6 4.3  95  90    00   +17.7   88.8 +19.2  -0.7 450.00 4.3  11.45
 5350 +16.4 4.4  96  80    00   +17.2   94.8 +20.7  -0.3 450.00 4.4  11.73
 5621 +16.1 4.4  95  80    08   +15.3   93.4 +17.8  -0.3 450.00 4.4  11.61
 5920 +15.7 4.4  95  90    00   +18.0   92.7 +17.7  -0.6 450.00 4.4  11.58
 6071 +16.1 4.4  95  90    00   +19.0   94.1 +22.3  -0.5 450.00 4.4  11.58
 6150 +15.7 4.4  95  80    00   +20.4   95.6 +23.1  -0.6 450.00 4.4  11.61
 6385 +14.9 4.4  95  70    00   +22.5   93.0 +23.7  -1.3 450.00 4.3  11.65
 6574 +14.9 4.4  23  00    00   +23.9   72.8 ECU.   +0.4 ECU.   3.7  11.73
 6161  +8.8 2.0   0  00    00   +23.1    7.3 ECU.   +0.5 ECU.   1.7  12.11
 5920  +2.3 1.9   0  00    00   +23.3    7.7 ECU.   +0.3 ECU.   1.9  12.11
 5518  -4.7 1.9   0  00    00   +23.9    7.8 ECU.   +0.0 ECU.   1.9  12.17

2nd to 3rd:

Code:
2nd Gear:

                   Load Knock                Mod   Mod         Mod   WB 
 RPM   MAP  MAF TPS Site Count  Ign#1  Inj#1  Ign   Fuel Boost  MAF   AFR
       psia  V   %               deg   duty   deg    %   (CL)    V  

 2498  -1.6 2.8  26  10    00   +24.1   19.3 +28.0  +4.8 ECU.   2.9  13.45
 2686  -0.2 3.0  40  10    00   +22.1   22.9 +28.0  +2.5 350.00 3.1  13.39
 2906  +1.7 3.1  65  20    00   +19.6   30.5 +26.3  +0.9 412.50 3.3  13.47
 3226  +3.7 3.4  94  40    00   +16.3   40.2 +18.0  +0.6 450.00 3.5  13.42
 3568  +6.4 3.8  95  50    00   +11.7   58.2 +16.0  +1.0 450.00 4.0  13.06
 3968 +10.4 4.0  95  80    00   +13.0   69.8 +15.8  +1.3 450.00 4.2  12.46
 4312 +14.1 4.1  95 100    00   +14.6   75.0 +16.2  +1.4 450.00 4.2  11.77
 4668 +16.8 4.2  95 100    00   +15.7   83.3 +17.8  +0.7 450.00 4.3  11.58
 5167 +18.2 4.3  95  90    00   +16.3   87.1 +19.0  -1.0 450.00 4.3  11.45
 5482 +17.4 4.4  95  90    00   +16.0   93.2 +20.5  -0.1 450.00 4.4  11.52
 5858 +16.1 4.4  95  80    00   +16.8   94.7 +22.0  -0.5 450.00 4.4  11.58
 6082 +15.3 4.4  95  80    00   +19.5   94.0 +22.4  -0.5 450.00 4.4  11.45
 6253 +14.3 4.4  95  70    00   +22.9   93.0 +23.5  -1.2 450.00 4.4  11.53
 6734 +13.9 4.4  95  70    00   +27.2   94.2 +24.7  -1.0 450.00 4.4  11.71
 7077 +13.5 4.4  87  70    00   +29.3   88.5 +26.0  -1.0 450.00 4.3  11.87

Shift to 3rd: 

                   Load Knock                Mod   Mod         Mod   WB 
 RPM   MAP  MAF TPS Site Count  Ign#1  Inj#1  Ign   Fuel Boost  MAF   AFR
       psia  V   %               deg   duty   deg    %   (CL)    V  

 6775 +10.6 2.9   0  00    00   +23.0   13.5 ECU.   +0.5 ECU.   1.8  11.68
 6397  +4.5 1.7   0  00    00   +23.0    7.8 ECU.   +0.4 ECU.   1.8  11.81
 5777  -1.8 2.1  29  10    00   +40.4   19.6 +27.0  -1.5 ECU.   3.0  12.09
 5307  -5.3 3.8  64  10    00   +11.5   62.6 +27.0  -2.0 410.00 3.9  12.89
 5649  -3.8 4.3  94  30    00    +7.0   88.1 +24.0  -0.1 450.00 4.3  13.06
 5621  +2.9 4.4  95  70    01   +14.8   92.8 +21.8  -0.6 450.00 4.4  11.98
 5767 +10.0 4.5  95  90    02   +16.4   93.9 +17.5  -0.5 450.00 4.4  11.73
 5899 +14.3 4.4  95  90    00   +17.1   93.8 +18.1  -0.6 450.00 4.4  11.68
 6172 +16.6 4.4  80  90    00   +18.3   95.2 +22.6  -0.6 450.00 4.4  11.67
 5767 +13.3 2.6   0  00    00   +23.2    8.2 ECU.   +0.1 ECU.   1.9  11.45
 5678  +6.4 1.8   0  00    00   +23.3    7.5 ECU.   +0.0 ECU.   1.8  11.89
 5385  -1.2 1.9   0  00    00   +23.2    7.1 ECU.   +0.0 ECU.   1.8  12.17
 5192  -8.9 1.9   0  00    00   +23.2    7.7 ECU.   +0.0 ECU.   1.9  11.81
 4923 -12.8 1.9   0  00    00   +23.4   80.0 ECU.   +0.0 ECU.   1.9  12.14
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Old 02-27-2006, 05:54 PM   #2
kts262
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I'm still a UTEC n00b so take what I say with a grain of salt, but I was having similiar issues recently.

I had my STi tuned by TurboXS as well and I found that in this cold the car was making more boost and I was knocking (just slightly) with my "all out 18psi" map and my "15psi daily driving map". The knocking was around 3000-3500rpms @ WOT. I turned it down to my #3 map which was had -1 degree of timing from the 15psi map and that stopped most of the knocking. I switched it down to my 4th map which is -1 degree of timing AND +1 fuel and I've been running fine for the week I've done that with no knocking at all. I haven't had time to pull logs but I've heard from several people that knocking with these maps is a common issue for cars that are tuned in warmer weather (My STi was originally tuned in early September.)

I'm surprised your map only goes up to 16psi, they set my #1 map to boost up to 18psi. I have the UTEC + Stealthback w/ high flow cat.

Switching to a map with a bit more timing and/or fuel should help kill the knock.

I'll pass your post on to a friend who has shared a lot of UTEC knowledge with me to see if he has any more input.

ninja edit: My car also does not have the ABC installed. I didn't install it and when I asked Nathan @ TXS he said it wasn't necessary on STis.
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Old 02-27-2006, 06:53 PM   #3
Freon
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If you're hitting too much boost just lower your boost table settings. That simple.

Your boost and AFR seem to be pretty middle of the road. Since it seems to be consistent at 5600rpm, I'd just take a degree or two of timing out right along your 5250 and 5500 line. If you look at the stock ECU, there are similar activities where the map isn't predictably smooth. It may seem odd that you'd need to put a "hole" in your timing, but if it works...

Although your fueling isn't really aggressive compared to what some people run, you could try targeting closer to 11.0:1 16psi@ 5600rpm is a lot of air.

Here's a log from when I was running a very similar setup (stock airbox, though)

Here's my timing map (parameters set to 18.5 psi max):
http://freon.shackspace.com/car/ecu%...ing/timing.PNG

I never had the kind of problem you are seeing @ 5600rpm and run almost the same timing there (about +20-21 BTDC).

I've always been running richer. I have leaned out the low and midrange columns, but my top columns still run 10.5-11.2:1 or so. I did have problems with the top mount and had to add some fuel around 5000rpm in the low and mid columns due to knock when shifting on the dragstrip, which I partly blame as heatsoak issues.

I'm running a new solenoid now, but even before I could've hit 20psi if I wanted without an ABC. I hit 18psi midrange no problem with about 380-400 in the boost map.

I'd try adding some fuel back in from 4500-5750 to start. If you end up with 11.0:1 and it still knocks, I'd then pull 2 degrees across the board in 5250 and 5500, 1 degree from 5000 and 5750. I say across the board because it looks like you're getting it in lower loads as well. Another trick may be to remove "ecu" from the 0% column from 5000 or 4750 rpm up so there is no transistion from ECU to UTEC during shifts. You can just copy your 10% column down.
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Old 02-27-2006, 10:17 PM   #4
TravisSTi
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Thanks for the input guys! I did a few pulls on my map 3 when I was going out to lunch. This is after I adjusted my TPS sensor. There is no knock on this map! atleast since its this cold....currently flurries are falling.

Anyway the log shows TPS = 100% but it just bearly hits the 100% Load column. It is common to see 100% TPS and running the 80 or 90% load columns this deep into a pull? As you can see it hits the 100 column then dips back to 90 column and eventually the 80 column even though I have 100% TPS.

Should I adjust the TPS to read 102% ? Currently it reads right on 100%

Code:
                    Load Knock                Mod   Mod         Mod   WB 
 RPM   MAP  MAF TPS Site Count  Ign#1  Inj#1  Ign   Fuel Boost  MAF   AFR
       psia  V   %               deg   duty   deg    %   (CL)    V  
 
 1951  -6.9 2.1  11  00    00   +38.9    7.7 ECU.   +0.0 ECU.   2.1  14.05
 1963  -6.7 2.1  11  00    00   +39.1    7.6 ECU.   +0.0 ECU.   2.1  14.00
 2000  -6.7 2.1  11  00    00   +39.8    8.1 ECU.   +0.0 ECU.   2.1  13.95
 2025  -6.7 2.2  14  00    00   +40.1    7.8 ECU.   +0.0 ECU.   2.2  13.84
 2076  -6.1 2.2  14  00    00   +40.4    8.9 ECU.   +0.0 ECU.   2.2  14.08
 2129  -5.7 2.2  15  00    00   +40.7    9.4 ECU.   +0.0 ECU.   2.3  14.37
 2223  -4.9 2.5  25  10    00   +38.2   12.1 +30.0  +4.5 ECU.   2.6  14.42
 2313  -3.4 2.6  28  10    00   +28.5   15.4 +29.6  +4.6 ECU.   2.7  14.15
 2413  -2.4 2.7  28  10    00   +26.6   17.1 +28.8  +4.8 ECU.   2.8  13.95
 2570  -1.0 2.7  28  10    00   +25.7   19.1 +28.0  +4.3 ECU.   2.9  13.81
 2699  +0.0 2.9  45  10    00   +24.2   21.7 +28.0  +2.2 362.50 3.1  13.53
 2911  +1.5 3.1  87  20    00   +22.3   26.9 +26.4  +1.1 415.00 3.1  13.78
 3124  +3.1 3.3  99  30    00   +18.8   34.4 +24.0  +1.3 425.00 3.3  13.84
 3343  +5.1 3.6 100  40    00   +15.5   43.8 +18.5  +1.0 425.00 3.7  13.28
 3631  +8.2 3.8 100  60    00   +11.9   58.6 +15.0  +2.6 425.00 4.0  12.81
 3992 +11.7 4.0 100  90    00   +13.1   68.0 +16.0  +1.6 425.00 4.1  12.14
 4357 +14.7 4.0 100 100    00   +14.6   71.7 +16.3  +1.8 425.00 4.2  11.68
 4655 +16.4 4.1 100  90    00   +15.5   80.9 +17.4  +1.5 425.00 4.2  11.62
 5035 +17.4 4.2 100  90    00   +17.5   85.6 +18.5  -1.3 425.00 4.2  11.33
 5376 +17.0 4.3 100  90    00   +16.0   90.6 +19.9  +0.0 425.00 4.3  11.33
 5659 +16.1 4.3 100  80    00   +16.1   94.4 +21.8  +0.2 425.00 4.4  11.53
 6027 +15.7 4.3 100  80    00   +19.1   92.6 +22.2  -0.3 425.00 4.3  11.52
 6242 +14.5 4.4 100  70    00   +20.8   88.7 +22.8  -0.9 425.00 4.3  11.61
 6548 +13.9 4.4 100  70    00   +23.9   89.2 +23.7  -0.7 425.00 4.3  11.76
 6761 +13.9 4.4 100  80    00   +27.4   93.2 +24.8  +0.0 425.00 4.4  11.87
 6830 +13.7 4.3   0  00    00   +33.5   55.0 ECU.   +0.4 ECU.   3.2  11.87
 6944  +8.2 1.8   0  00    00   +39.5    7.2 ECU.   +0.5 ECU.   1.6  11.71
Thanks,

Travis
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Old 02-28-2006, 09:35 AM   #5
alcrudojr #00
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My humble opinion is your way to lean as already mention try runing more between 10.8 to 11.1 at top end.
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Old 02-28-2006, 09:51 AM   #6
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Quote:
Originally Posted by TravisSTi
Code:
                   Load Knock                Mod   Mod         Mod   WB 
 RPM   MAP  MAF TPS Site Count  Ign#1  Inj#1  Ign   Fuel Boost  MAF   AFR
       psia  V   %               deg   duty   deg    %   (CL)    V  


 4105 +15.1 4.0  57  80    00   +16.1   66.2 +16.0  +1.1 392.50 4.1  11.58
 4317 +15.5 4.1  69  80    00   +15.9   71.8 +16.4  +1.3 422.50 4.2  11.67
 4480 +15.5 4.2  68  90    00   +15.8   81.9 +17.1  +1.8 420.00 4.3  11.62
 4761 +16.1 4.3  68  90    00   +16.7   85.8 +18.1  +0.2 420.00 4.2  11.27
 5035 +17.2 4.3  73  90    00   +17.9   84.2 +18.4  -0.7 432.50 4.2  11.12
 5175 +16.6 4.3  95  90    00   +17.7   88.8 +19.2  -0.7 450.00 4.3  11.45
 5350 +16.4 4.4  96  80    00   +17.2   94.8 +20.7  -0.3 450.00 4.4  11.73
 5621 +16.1 4.4  95  80    08   +15.3   93.4 +17.8  -0.3 450.00 4.4  11.61
 5920 +15.7 4.4  95  90    00   +18.0   92.7 +17.7  -0.6 450.00 4.4  11.58
 6071 +16.1 4.4  95  90    00   +19.0   94.1 +22.3  -0.5 450.00 4.4  11.58
 6150 +15.7 4.4  95  80    00   +20.4   95.6 +23.1  -0.6 450.00 4.4  11.61
 6385 +14.9 4.4  95  70    00   +22.5   93.0 +23.7  -1.3 450.00 4.3  11.65
Alright, I'm not master UTEC tuner, but I do have good knowledge of how it works.

First off, take a look at the "mod fuel %" column and the "AFR" column. Those two are obviously interconnected. But a certain AFR that you see isn't correlated to the "mod fuel %" that is on the same line. You need to compare it to a "mod fuel %" from a line or two ago. And that's where your problem starts. You have "mod fuel %" numbers that are all positive that all of the sudden go negative and look at what happens to the AFR a couple lines later…it goes to high 11’s. So I would take those -0.7’s and add fuel to them first to get that AFR into the low 11’s. Actually, looking at it again, you have all negative numbers from 5000RPM on up in the 80% and 90% load columns. I would add about .3 in there and see where that puts you. You want that “mod fuel %” column to have a relatively nice shape if you graphed the numbers and the jump from +0.2 to -0.7 is not a nice jump and is probably starting the knock event and then it finally shows knock a couple lines later. This is also evidenced by your ign#1 column. The timing stops advancing as soon as you get into the line that has negative “fuel mod %” values.

I don’t think your timing is that aggressive, but I think your fuelling is and that is what is causing your problems. Try that and see what happens.

Tim
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Old 02-28-2006, 12:26 PM   #7
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Quote:
Originally Posted by Freon
I'd try adding some fuel back in from 4500-5750 to start. If you end up with 11.0:1 and it still knocks, I'd then pull 2 degrees across the board in 5250 and 5500, 1 degree from 5000 and 5750. I say across the board because it looks like you're getting it in lower loads as well. Another trick may be to remove "ecu" from the 0% column from 5000 or 4750 rpm up so there is no transistion from ECU to UTEC during shifts. You can just copy your 10% column down.
Try Freon suggestion ... hopefully your knocks will go away ... if you are running pump fuel .. I think ur A/F bit too lean .. just my 2 cents
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Old 03-04-2006, 01:13 AM   #8
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Ideally you dont want it to ride in the 100% load column. Set your maps up so that a HARD full pull is only in the 90% load column, then tune the 100% column for less timing, and more fuel, so that in the event of overboost, you dont run into det issues.


And you are lean up top. You can run 11.7 that high on water injection (or alch/water) but on pump thats a little lean IMO
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Old 03-05-2006, 07:03 PM   #9
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From my experience isn't 85+% injector duty cycle a bad thing? I saw his logs were in the mid 90's!!! Maybe a fuel pump and injectors? Then retune.

My .02
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Old 03-05-2006, 07:42 PM   #10
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Quote:
Originally Posted by Pacobeagle1
From my experience isn't 85+% injector duty cycle a bad thing? I saw his logs were in the mid 90's!!! Maybe a fuel pump and injectors? Then retune.

My .02
Bad? No not really. It doesn't give much overhead but it isn't a bad thing.
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Old 03-05-2006, 08:41 PM   #11
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Agreed
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Old 03-05-2006, 09:56 PM   #12
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Quote:
Originally Posted by Davenow
Ideally you dont want it to ride in the 100% load column. Set your maps up so that a HARD full pull is only in the 90% load column, then tune the 100% column for less timing, and more fuel, so that in the event of overboost, you dont run into det issues.


And you are lean up top. You can run 11.7 that high on water injection (or alch/water) but on pump thats a little lean IMO
Thanks for explaining that, Dave, it has been bothering me for awhile. I keep thinking that load site determines boost, but it is the other way around.
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Old 03-06-2006, 06:11 AM   #13
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Thanks for the pointers guys! I have adjusted my fuel map so im not so lean but had a few more questions. The below 3rd gear pull was taken at 40F

Code:
                    Load Knock                Mod   Mod         Mod   WB 
 RPM   MAP  MAF TPS Site Count  Ign#1  Inj#1  Ign   Fuel Boost  MAF   AFR
       psia  V   %               deg   duty   deg    %   (CL)    V  
 3724  -9.4 1.9  10  00    00   +29.5    6.6 ECU.   +0.0 ECU.   1.9  13.06
 3236 -11.4 2.1  15  00    00   +43.1   14.3 ECU.   +0.0 ECU.   2.3  14.37
 3126 -10.8 2.4  21  00    00   +20.4   11.7 ECU.   +0.0 ECU.   2.5  14.08
 3159  -9.1 2.6  23  00    00   +43.8   14.9 ECU.   +0.0 ECU.   2.6  13.78
 3233  -7.3 2.8  26  10    00   +41.0   17.9 +27.0  -0.5 ECU.   2.8  14.65
 3333  -4.9 2.9  28  10    00   +39.0   21.2 +27.0  -0.6 ECU.   2.9  14.92
 3454  -2.6 3.2  45  10    00   +32.8   30.8 +27.0  -0.5 327.50 3.3  14.83
 3572  +0.2 3.5  53  20    00   +23.0   43.3 +25.0  -0.8 380.00 3.7  14.61
 3762  +3.7 3.9  62  50    00   +13.6   62.9 +16.4  +1.0 390.00 4.0  13.75
 4001  +8.6 4.1  76  80    00   +13.4   73.5 +15.9  +1.5 425.00 4.1  12.68
 4246 +12.9 4.1  81 100    00   +14.1   78.4 +16.3  +1.7 425.00 4.3  11.81
 4409 +16.1 4.3  92 100    00   +15.0   85.5 +16.8  +2.1 420.00 4.3  11.52
 4701 +18.2 4.3  94 100    00   +15.8   87.0 +17.9  +1.3 415.00 4.4  11.34
 4982 +18.6 4.3  97 100    00   +16.0   90.7 +18.0  -0.5 415.00 4.3  11.05
 5167 +18.6 4.4  97 100    00   +15.2   94.5 +18.7  +0.0 410.00 4.4  11.05
 5428 +17.4 4.5  97  90    00   +15.3   99.8 +19.7  +0.1 410.00 4.4  11.27
 5527 +16.6 4.5  97  80    00   +16.0   97.3 +21.6  +0.3 410.00 4.5  11.24
 5797 +15.1 4.4  97  80    00   +18.1   99.5 +22.0  +0.1 410.00 4.5  11.14
 6049 +14.3 4.5  98  70    00   +18.9   97.9 +22.4  -0.4 410.00 4.4  11.14
 6172 +13.9 4.5  97  70    00   +20.7   98.2 +22.8  -0.5 410.00 4.4  11.12
 6349 +13.7 4.4  94  70    00   +22.5   96.0 +23.3  -0.6 410.00 4.4  11.18
 6510 +13.7 4.5  35  80    00   +24.3   75.6 +23.8  +0.1 417.00 3.8  11.27
 5878  +8.8 1.9   0  00    00   +23.3    6.8 ECU.   +0.3 ECU.   1.6  11.34
 5611  +2.5 1.8   0  00    00   +23.3    7.5 ECU.   +0.2 ECU.   1.8  12.06
 5216  -4.0 2.5  36  10    00   +41.2   26.7 +26.0  -2.5 ECU.   3.2  12.21
 5299  -7.5 3.9  72  10    00   +32.9   63.4 +26.0  -1.2 390.00 4.0  12.49
 5208  -3.6 4.3  93  30    02   +17.0   89.5 +19.0  -0.9 410.00 4.3  12.93
 5324  +3.5 4.5  96  70    00   +13.8   96.4 +15.0  +0.0 410.00 4.4  12.11
 5224  +8.6 3.3   0  00    00   +25.2   20.1 ECU.   +0.2 327.50 2.0  11.62
 5184  +5.9 1.6   0  00    00   +23.3    6.2 ECU.   +0.2 ECU.   1.8  11.08
I am going to pull a bit of boost from 4500-5500. Is there anything else I can do to help bring down IDC's from 5500-6500 without lowering boost?

The knock event I got was a bit lean. This was after shifting into 4th and starting to get back on the gas I'm going to add some fuel in the those areas but was this knock caused by the fuel? or possibly the jump in the timing? I went from +26 to +19. If I set timing in the 5000rpm 10% column to +23 will that be enough to prevent this from happening again, or should I copy my 10% column over to the ecu?

Travis
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Old 03-06-2006, 09:45 AM   #14
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Edit: Did you shift in that log or did you take your foot off the gas then mash the pedal in the sam gear?

The timing going from 26 to 19 is because the utec is pulling timing due to knock. I also noticed you dont have any timing in your 0%.

It sucks that youre knock because this looks to be a pretty anemic tune. Youre not running that much boost and your MAF voltage is weak sauce. What brand of gas are you using and do you make it a habbit of getting the same brand?

Last edited by AaronWRX; 03-06-2006 at 01:18 PM.
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Old 03-06-2006, 12:14 PM   #15
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Quote:
Originally Posted by SloRice
You want that “mod fuel %” column to have a relatively nice shape if you graphed the numbers and the jump from +0.2 to -0.7 is not a nice jump and is probably starting the knock event and then it finally shows knock a couple lines later.
i do not agree with this.

fueling adjustments and offsets are not like timing. the engine sees the AFR and nothing else wrt fueling decisions. you make the AFR look nice, not the offsets.
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Old 03-06-2006, 12:58 PM   #16
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Try to adjust the timing not jump more than 3 and lower your timing in low loads ... ur knock still at (-) psi so the A/F still fine ... but this just my 2cnt.
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Old 03-06-2006, 05:20 PM   #17
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Quote:
Originally Posted by AaronWRX
Edit: Did you shift in that log or did you take your foot off the gas then mash the pedal in the sam gear?

The timing going from 26 to 19 is because the utec is pulling timing due to knock. I also noticed you dont have any timing in your 0%.

It sucks that youre knock because this looks to be a pretty anemic tune. Youre not running that much boost and your MAF voltage is weak sauce. What brand of gas are you using and do you make it a habbit of getting the same brand?
I did shift, I ran up through 3rd then shifted to 4th and got the knock. Should I just move some timing into the 0% column from 5000rpm up? and reduce advance in those columns as well?

I use sunoco or exxon 93 all the time.

Do most people not let the ECU control timing in the higher RPM ranges?
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Old 03-07-2006, 07:59 AM   #18
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Quote:
Originally Posted by TravisSTi
Do most people not let the ECU control timing in the higher RPM ranges?
if you can get away without locking it down, then don't lock it down.

if you have to in order to prevent shift knocking, then obviously do it.

i have not had to lock it down, but ymmv.

ken
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Old 03-07-2006, 08:17 AM   #19
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couple of things mate, change the injectors first youve got next to no head room for temp fluctuations or altitude
once youve done that could you post a 4th gear log from tick over to redline as the turbo only fully spools up in fourth
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Old 03-07-2006, 07:57 PM   #20
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Quote:
Originally Posted by djviper
couple of things mate, change the injectors first youve got next to no head room for temp fluctuations or altitude
once youve done that could you post a 4th gear log from tick over to redline as the turbo only fully spools up in fourth
Yeah I'm saving up for injectors but until I get them I guess i'll just have to run less boost. But considering im tuning for winter weather pretty close to sealevel when it gets hotter won't it require less fuel as the density of the air decreases? The map I started with was a Summer low boost map tuned by TurboXS and all I have been doing to it is adding fuel, lowering boost and retarding timing. I'll pull some more boost and get 4th gear pull. I think I have my shift knock undercontrol now.
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Old 03-09-2006, 11:40 AM   #21
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Quote:
Originally Posted by ride5000
i do not agree with this.

fueling adjustments and offsets are not like timing. the engine sees the AFR and nothing else wrt fueling decisions. you make the AFR look nice, not the offsets.
The "mod fuel %" and the afr can be correlated pretty good. If you mod fuel % goes from -1 to -2 in the 4000 and 4250 row, I will be that your AFR's will change a 1/2 point or more. Making the AFR look nice will make your "mod fuel %" map look nice also. You won't see big changes in your fuel map unless something like boost comes on.
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Old 03-09-2006, 11:48 AM   #22
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That last log you did looks much much better. That’s the problem with the stock fuel system, its maxed out if you up the boost on the stock turbo. I installed the Walbro fuel pump in my car and it gave me a little more overhead. My IDC’s went from --.--- from 5500RPM up to 95% from 5500RPM up. So it might be worth a shot, but it may not work…..big debate on a fuel pump changing a tune…another day, another thread.

As for the knock event, it’s not fuel related. You are in vacuum and running 12.5:1 AFR. That’s really rich. Anytime you are in vacuum, you’re AFR’s should be ~14.7:1. I personally think the knock is due to the large jump in timing. In lower load columns, you can have higher timing values, even high in the RPM band.

As ride5000 said, if you don’t have to lock down timing in low load columns, don’t.
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Old 03-09-2006, 12:52 PM   #23
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Quote:
Originally Posted by SloRice
The "mod fuel %" and the afr can be correlated pretty good. If you mod fuel % goes from -1 to -2 in the 4000 and 4250 row, I will be that your AFR's will change a 1/2 point or more.
you'd lose that bet.

Quote:
Making the AFR look nice will make your "mod fuel %" map look nice also. You won't see big changes in your fuel map unless something like boost comes on.
not necessarily.

case in point, a log from this very morning (complete with knock) :

Code:
5299 +23.9 4.5 100 100    00  11.1  +19.5   97.2 +15.6  -6.4 100.00 4.2  11.11
 5376 +23.9 4.5 100 100    00  11.1  +19.5   98.6 +15.3  -6.5 100.00 4.2  11.06
 5341 +23.9 4.5 100 100    00  11.1  +20.3   98.6 +15.6  -6.3 100.00 4.2  11.08
 5420 +24.1 4.5 100 100    00  11.1  +20.3   99.3 +15.2  -6.4 100.00 4.2  11.11
 5385 +24.1 4.5 100 100    00  11.1  +20.9   98.3 +15.3  -6.3 100.00 4.2  11.14
 5518 +23.7 4.5  99 100    00  11.2  +20.7   97.8 +15.3  -6.4 100.00 4.2  11.18
 5527 +23.7 4.5  99 100    00  11.2  +20.3    1.0 +15.5  -6.4 100.00 4.2  11.18
 5473 +23.7 4.5 100 100    00  11.2  +21.1   99.0 +15.5  -6.4 100.00 4.2  11.18
 5737 +23.7 4.5 100 100    00  11.2  +21.0   98.4 +15.6  -6.3 100.00 4.2  11.23
 5527 +23.3 4.5 100 100    00  11.2  +21.1   98.4 +15.5  -6.3 100.00 4.2  11.23
 5621 +23.3 4.5 100 100    00  11.2  +21.2    1.0 +15.5  -6.3 100.00 4.1  11.23
 5583 +22.9 4.5 100  90    00  11.2  +21.4   98.5 +15.6  -7.6 100.00 4.2  11.24
 5668 +22.3 4.5  99  90    00  11.2  +21.4   97.2 +15.8  -7.6 100.00 4.2  11.24
 5630 +22.3 4.5  99  90    00  11.3  +21.5    1.0 +15.8  -7.6 100.00 4.2  11.27
 5707 +22.3 4.5  99  90    00  11.3  +22.0   96.0 +15.9  -7.4 100.00 4.2  11.30
 5777 +22.5 4.5 100  90    00  11.3  +21.8   95.8 +15.8  -7.4 100.00 4.2  11.33
 5678 +22.5 4.5 100  90    00  11.4  +21.6    1.0 +15.7  -6.4 100.00 4.2  11.37
 5847 +23.1 4.5 100 100    00  11.4  +22.1    1.0 +15.7  -6.4 100.00 4.2  11.37
 5747 +23.1 4.5 100 100    00  11.4  +22.2   99.8 +15.6  -6.4 100.00 4.2  11.37
 5817 +22.3 4.5 100  90    00  11.4  +22.2   99.2 +15.8  -7.5 100.00 4.2  11.39
 5878 +22.3 4.5 100  90    00  11.4  +22.1   96.7 +15.9  -7.5 100.00 4.2  11.42
 5837 +22.3 4.5 100 100    00  11.4  +22.0    1.0 +15.8  -6.4 100.00 4.2  11.42
 5899 +22.3 4.5 100 100    00  11.4  +22.6   98.7 +15.9  -6.4 100.00 4.2  11.42
 5868 +21.8 4.5 100  90    00  11.4  +22.0    1.0 +15.9  -7.5 100.00 4.2  11.42
 6060 +21.6 4.6 100  90    02  11.4  +22.3   99.5  +9.8  -7.2 100.00 4.2  11.42
 5952 +21.6 4.6 100  90    00  11.4  +22.1   97.3  +9.7  -7.4 100.00 4.2  11.42
 5910 +21.6 4.6 100  90    00  11.5  +22.4   99.5  +9.8  -7.3 100.00 4.2  11.45
 6049 +22.1 4.6 100  90    00  11.5  +22.7    1.0  +9.7  -7.3 100.00 4.2  11.45
 6105 +22.5 4.6 100  90    00  11.5  +22.8   97.3  +9.7  -7.3 100.00 4.2  11.48
 6161 +22.5 4.6 100  90    00  11.5  +22.8    1.0  +9.9  -7.3 100.00 4.2  11.49
 6105 +21.8 4.5  99  90    00  11.5  +23.2   97.5 +10.0  -7.2 100.00 4.2  11.49
 6161 +21.8 4.6 100 100    00  11.5  +23.1    1.0  +9.7  -6.4 100.00 4.3  11.52
 6195 +21.8 4.6 100 100    00  11.6  +23.1    1.0  +9.8  -6.5 100.00 4.3  11.56
 6242 +21.8 4.6 100 100    00  11.7  +23.6   99.8 ECU.   -7.0 100.00 4.3  11.73
note the repeated jumping from -6.4 to -7.2 or -7.5. according to your theory, the afrs should be all over the place... yet this is not the case when one looks at the stability of the indicated afrs.

i'm telling you relying on the "prettyness" of your fuel offset map is the wrong way to determine the health, stability, or performance of the tune. whether or not you agree is up to you.

in the meantime, i will continue to put in whatever offset i need to net a given afr, regardless of whether or not it obeys some numerical pattern.
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Old 03-09-2006, 01:18 PM   #24
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Well, I stand corrected and apparently my theory only applies to my car.

What logger is that?

I'm guessing when your injectors go static, the idc reads '1.0'?? Also, how are you knocking with only 15 degrees of timing??
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Old 03-09-2006, 02:45 PM   #25
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that's UTI, by navybluesubaru. 20 lines/sec log speed.

the 1.0 in idc could be static, but in other logs i have 100.0 as an entry, so who knows? as long as the afrs are ok i don't really care.

as far as knock at 15*, did you notice the map and maf? that's a vf23 pushing that air into an ej205 block, which requires less advance than a 2.5l block in the first place.

oem wrx injectors btw.
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