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Old 07-03-2005, 03:31 PM   #1
StiDreams
Scooby Specialist
 
Member#: 26315
Join Date: Oct 2002
Chapter/Region: BAIC
Location: On the grassy knoll.
Vehicle:
07 Outback
Silver/Silver

Default A little UTEC help, please.

XS450
Perrin modified injectors
Spearco TMIC
TurboXS Stealth back w/cat
UTEC

I知 in the process of upping the boost a little. I知 not seeing any problems with the new boost curve going from 2K from 4th and rowing through the gears to about 5Kin 6th. It stills needs a little smoothing in terms of both boost and fueling. Here are a couple of plots showing a 4th to 5th pull.





The problem is that I知 seeing a little knock rolling into 5th while cruising. It looks like the ECU is not seeing it but UTEC is pulling timing. I知 already running at 10.8:1 AFR and 12.5 degree with the EGT in the 1400s. I知 going to pull another .5 to 1 degree out and see what happens. Are there anybody running less than 12 degrees in the low spot in their timing map? Do you guys think it could be that I知 building boost too aggressively?

Code:
 2641  -3.6 2.6  19  00    00   +40.4   10.9 ECU.   +0.5 ECU.   2.3  14.45 
 2679  -3.6 2.6  19  00    00   +40.5   10.4 ECU.   +0.5 ECU.   2.3  14.58 
 2666  -3.6 2.6  19  00    00   +40.4   10.5 ECU.   +0.5 ECU.   2.3  14.65 
 2656  -3.4 2.6  19  00    00   +40.3    8.8 ECU.   +0.5 ECU.   2.3  14.61 
 2681  -3.2 2.9  33  10    00   +38.7   14.6 +32.0  +0.1 350.00 2.6  14.58 
 2710  -1.8 3.0  40  10    00   +31.7   14.9 +32.0  +0.1 350.00 2.6  14.58 
 2725  -0.2 3.0  43  20    00   +29.2   15.8 +25.0  -1.0 350.00 2.7  14.58 
 2714  +1.5 3.1  45  20    00   +28.9   16.8 +25.0  -1.8 345.00 2.7  14.30 
 2763  +3.3 3.2  50  30    00   +27.7   18.0 +19.0  -3.1 345.00 2.8  13.95 
 2827  +4.3 3.2  52  30    00   +27.7   18.4 +19.0  -3.1 345.00 2.8  13.47 
 2836  +5.5 3.4  55  40    00   +27.0   19.8 +17.3  -2.8 345.00 2.9  13.23 
 2873  +6.6 3.4  59  40    00   +28.2   20.5 +17.3  -2.9 345.00 2.9  13.25 
 2942  +7.8 3.5  65  50    00   +26.6   22.3 +15.8  -1.6 345.00 3.0  13.09 
 2896  +9.2 3.5  71  50    00   +23.7   24.0 +15.7  -1.9 345.00 3.1  12.78 
 3049 +10.2 3.7  71  60    00   +19.4   27.9 +14.0  +0.3 345.00 3.1  12.52 
 3072 +11.5 3.7  76  60    00   +17.2   30.5 +14.0  +0.4 345.00 3.2  12.09 
 2986 +12.7 3.8  78  70    00   +15.4   32.6 +13.3  +0.4 345.00 3.3  11.43 
 3147 +13.9 3.9  81  80    00   +14.8   34.8 +12.9  +0.3 345.00 3.3  10.96 
 3205 +15.1 3.8  81  80    00   +13.5   36.4 +12.5  +0.6 345.00 3.4  10.89 
 3236 +16.6 4.0  81  80    01   +12.8   37.4  +9.7  +0.6 343.00 3.4  10.89 
 3280 +17.6 4.0  84  90    01   +12.1   39.6  +8.0  +0.9 343.00 3.5  10.86 
 3310 +17.4 4.0  84  80    00   +13.4   37.7  +8.5  +0.8 343.00 3.5  10.86 
 3360 +17.4 4.0  84  80    00   +12.5   41.9  +8.5  +0.7 343.00 3.5  10.93
Code:
 2038  +0.2 2.8  52  10    00   +33.7    9.4 +32.0  -0.9 350.00 2.4  14.61 
 2119  +1.1 2.7  78  20    00   +32.3    9.9 +26.5  -1.3 350.00 2.4  14.74 
 2096  +1.9 2.7  95  20    00   +31.0   10.5 +26.3  -1.4 350.00 2.4  14.61 
 2167  +2.7 2.8 100  20    00   +31.4   10.1 +26.4  -1.3 350.00 2.4  14.30 
 2171  +2.9 2.8 100  20    00   +31.4   10.4 +26.1  -1.5 350.00 2.5  14.15 
 2246  +3.3 2.9 100  20    00   +32.8   10.6 +26.1  -1.6 350.00 2.4  14.22 
 2249  +3.5 2.8 100  20    00   +32.8   10.9 +25.9  -1.1 350.00 2.4  14.30 
 2306  +3.9 2.8 100  20    00   +33.0   11.4 +25.8  -1.7 350.00 2.4  14.22 
 2324  +3.9 2.9 100  20    00   +32.6   11.8 +22.2  -1.8 350.00 2.5  14.18 
 2355  +4.1 3.0 100  30    00   +32.9   12.5 +22.0  -1.9 350.00 2.5  14.15 
 2410  +4.5 3.0 100  30    00   +32.5   12.0 +22.0  -2.0 350.00 2.6  14.15 
 2415  +4.9 3.0 100  30    00   +29.3   12.6 +21.8  -2.1 350.00 2.6  14.11 
 2447  +5.3 3.0 100  30    00   +28.4   13.2 +21.6  -2.1 350.00 2.7  14.30 
 2485  +5.5 3.1 100  30    00   +27.7   14.1 +21.0  -2.2 350.00 2.6  14.22 
 2510  +5.9 3.1 100  30    00   +27.9   14.4 +20.8  -2.2 350.00 2.7  14.08 
 2594  +6.4 3.1 100  40    00   +27.3   15.3 +18.7  -1.8 350.00 2.7  14.00 
 2622  +6.8 3.1 100  40    00   +25.6   15.9 +18.4  -2.0 350.00 2.8  13.72 
 2651  +7.2 3.2 100  40    00   +25.4   16.9 +18.1  -1.8 350.00 2.7  13.53 
 2714  +7.6 3.3 100  40    00   +27.0   17.8 +17.8  -2.5 350.00 2.8  13.47 
 2752  +8.0 3.3 100  40    00   +26.5   18.2 +17.5  -2.8 345.00 2.9  13.56 
 2824  +8.4 3.4 100  50    00   +24.7   21.7 +16.3  -1.2 345.00 2.9  13.56 
 2834  +9.4 3.5 100  50    00   +23.6   22.6 +16.2  -1.4 345.00 3.0  13.12 
 2926 +10.2 3.6 100  60    00   +21.6   25.4 +14.3  +0.5 345.00 3.1  12.59 
 2944 +11.3 3.6 100  60    00   +17.9   27.5 +14.2  +0.5 345.00 3.1  12.21 
 3005 +12.3 3.7 100  60    00   +16.3   29.8 +14.0  +0.4 345.00 3.2  11.73 
 3077 +13.1 3.8 100  70    00   +15.4   32.4 +13.4  +0.4 345.00 3.2  11.34 
 3126 +14.5 3.8  99  80    00   +14.1   35.2 +12.9  +0.6 345.00 3.4  11.12 
 3118 +15.7 3.9  99  80    00   +12.8   34.9 +12.5  +0.6 345.00 3.4  11.01 
 3277 +17.0 3.9  99  90    00   +13.1   37.6 +12.0  +0.6 343.00 3.4  10.83 
 3271 +17.6 3.9  99  90    00   +15.0   37.5 +12.0  +0.8 343.00 3.4  10.73 
 3370 +17.8 4.0  99  80    00   +13.6   39.6 +12.5  +0.7 343.00 3.5  10.80 
 3436 +17.8 4.0  99  80    00   +14.0   40.6 +12.5  +0.6 343.00 3.5  10.83 
 3486 +17.4 4.0  99  80    02   +13.5   41.9  +8.5  +0.5 343.00 3.5  10.80 
 3561 +17.6 4.0  99  90    00   +13.6   44.1  +8.0  +0.4 342.00 3.6  10.86 
 3635 +17.6 4.1  99  80    00   +17.7   43.0  +8.5  -0.5 342.00 3.5  10.81 
 3635 +17.0 4.1  47  80    00   +18.1   42.0  +8.5  -0.4 342.00 3.5  10.78
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Old 07-04-2005, 12:22 PM   #2
Tgui
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I'll look through my logs when I get home from work.
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Old 07-05-2005, 10:39 AM   #3
Tgui
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Take a look at my post on sanity checking my tuning, there is a log included. Might be able to get some timing ideas, or not
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Old 07-05-2005, 11:19 AM   #4
wrex03
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Join Date: Nov 2002
Location: chicago
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04 sti
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Default

It probably is heat soak from the tmic. I have that issue every once in awhile. 5th gear pull from a FP green and txs tmic. I've leaned out the fuel a little since this log, but the timing is still pretty much the same.

Code:
2297  -9.1 2.3  16  00    00   +43.4    5.8 ECU.   +1.0 ECU.   2.1  14.74
 2322  -7.7 2.5  23  10    00   +44.7    8.6 +41.0  +3.6   1.00 2.4  14.25
 2331  -5.5 2.7  35  10    00   +38.7   11.8 +41.0  +3.6   1.00 2.5  13.92
 2365  -3.0 2.7  44  10    00   +37.8   12.6 +41.0  +3.6   1.00 2.5  13.50
 2401  -1.0 2.8  53  10    00   +36.7   13.4 +41.0  +3.6  30.70 2.5  12.71
 2431  +0.2 2.8  61  10    00   +35.9   13.7 +41.0  +3.6 103.00 2.6  12.27
 2450  +1.1 2.8  69  10    00   +34.6   14.4 +41.0  +3.6 127.00 2.7  12.18
 2474  +1.7 2.9  74  20    00   +33.1   15.0 +30.4  +3.7 278.00 2.7  12.27
 2536  +2.5 2.9  87  20    00   +31.3   15.6 +30.0  +3.7 500.00 2.8  12.39
 2566  +3.1 3.0  90  20    00   +29.6   16.7 +30.2  +3.7 500.00 2.8  12.34
 2618  +3.7 3.0  93  20    00   +28.4   17.1 +30.4  +3.7 500.00 2.9  12.18
 2639  +4.5 3.0  98  30    00   +27.2   18.1 +25.0  +3.7 500.00 2.9  12.09
 2651  +5.1 3.2  99  30    00   +25.9   19.1 +25.0  +3.6 500.00 2.9  11.96
 2686  +6.2 3.2  98  30    00   +24.9   20.5 +25.0  +3.6 500.00 3.0  11.84
 2738  +7.0 3.3  98  40    00   +24.0   23.1 +22.0  +3.0 500.00 3.0  11.68
 2812  +7.6 3.3  99  40    00   +23.0   24.1 +22.1  +3.0 500.00 3.0  11.58
 2886  +8.6 3.5  98  40    00   +22.0   25.7 +22.2  +3.0 500.00 3.1  11.30
 2901  +9.2 3.5  99  50    00   +20.4   26.8 +19.2  +1.8 500.00 3.1  10.90
 2973 +10.4 3.5  98  50    00   +20.3   29.8 +19.0  +1.7 240.00 3.2  10.78
 3013 +11.5 3.7  98  60    00   +19.2   32.1 +14.9  +1.7 240.00 3.2  10.83
 3100 +12.7 3.8  99  60    00   +17.4   34.7 +14.6  +1.7 240.00 3.3  10.81
 3106 +14.1 3.7  98  70    00   +16.2   36.1 +13.0  +1.9 240.00 3.4  10.74
 3153 +15.5 3.9  99  70    00   +14.7   37.8 +13.0  +1.9 240.00 3.5  10.78
 3264 +17.0 3.8  98  80    00   +15.0   40.0 +12.0  +1.5 240.00 3.4  10.78
 3316 +18.2 4.0  99  80    00   +15.5   41.3 +12.1  +1.6 240.00 3.5  10.67
 3377 +18.8 4.0  98  80    00   +15.3   42.4 +12.2  +1.6 240.00 3.5  10.67
 3408 +19.4 4.0  98  80    00   +17.5   42.5 +12.4  +1.5 240.00 3.6  10.67
 3494 +19.4 4.0  98  80    00   +17.3   43.8 +12.5  +1.2 240.00 3.6  10.65
 3576 +19.8 4.1  98  80    00   +18.1   45.3 +12.4  +1.4 240.00 3.6  10.73
 3642 +20.0 4.0  98  90    00   +19.7   45.8 +12.0  +0.6 240.00 3.5  10.65
 3671 +20.2 4.1  98  90    00   +21.8   44.7 +12.0  +0.1 240.00 3.6  10.55
 3703 +20.4 4.1  99  80    00   +22.6   47.3 +12.1  +0.0 240.00 3.6  10.65
 3779 +20.0 4.1  98  80    00   +21.9   49.9 +12.0  +1.1 240.00 3.7  10.73
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Old 07-05-2005, 06:53 PM   #5
dosage0
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You're knocking in pretty much the same location. I would drop the timing to 12 from what looks like 12.5. I run on crappy cali gas as well and at that point I have to run 12 or I knock.

I also run closer to 10.5:1 on 91, but if you can get away with 10.8 go for it. Maybe try richening slightly before reducing timing? If when at 10.5:1 you are still knocking, then you either have to lower boost or timing.

Rob
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Old 07-05-2005, 06:55 PM   #6
StiDreams
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Thanks for the input everybody. I'm going to try 12 first then go to lower AFR if that doesn't fix it.
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Old 07-05-2005, 09:56 PM   #7
hippy
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Ya might wanna also try lowering the boost, adding some octange booster, or looking into water/alc injection.

peace
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Old 07-06-2005, 12:41 PM   #8
StiDreams
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Silver/Silver

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I know it's time to go that route. I just have to get off my ass and do it. That and find the time to do a full retune with water. I guess it's time to order the 2D.
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