I took her out for about 30 minutes and logged all of it. Here is some examples of what is going on.
AFR - Air Fuel Ratio
TPS - Throttle Position Sensor (0-4.59V, 4.59 is WOT)
MAP - Manifold Air Pressure (boost measured in kPa)
RPM - Duhhhhhh
AFR TPS MAP RPM
11.38 2.21 95.50 2952
12.65 1.88 58.10 4059
14.41 1.95 83.90 4201
12.28 3.36 165.10 4336
12.92 4.59 54.80 4596
13.05 4.57 170.30 4943
12.96 4.53 154.80 5066
Note - at a MAP of 170.30 (highest) my injector duty cycle is 39.08%..............lots more there.
Wide O2 input is set for +/- 20% to keep A/F ratio to 14.64.
MAP of 170.30 is max because of waste gate. No boost controller is installed yet.
So, what do yall think?
Last edited by Duke on Mar 14, 2006 7:31 PM, edited 1 time in total.
light load map needs tuning. Its very rich. WOT is slightly lean, but it looks like your not runing enough boost get pre-detonation. If you were running more boost, that could be a real problem.
Since I don't know how the TEC3r software works, I can't give you any tips on tuning. Usually the tuning is pretty straigh forward. JimC has this to say...
Motronic needs exactly three things to calculate LOAD.
1) A signal from the air meter, normalized to "Q" airflow in kg/hr
2) A measure of current engine rpm "n"
3) A programmed injector size constant "Ki" (K sub eye)
LOAD aka Tl (Tee sub ell) is calculated as:
Tl = Q / (n * Ki)
LOAD is not just a representation of cylinder filling, but the
theoretical Injector Time Open (Ti, Tee sub eye) needed to reach
stoich (Lambda= 1) with the current injector setup assuming that
the motor is "perfect".
Which it isn't, hence there are fueling tables which are used as
multiplicative corrections to LOAD to reach the actual Ti.
While he talking about Motronics, the TEC3r should work nealry the same. Im guessing you've done the the first part in getting to lambda=1. The hard part is fine tuning VE tables because the system is not perfect. VE(voluetric efficency) is used to dial in the system. This is the part were patience and some knowledge of the system can help. Thats where experienced tuners get the big bucks, they know this stuff up down backwards forwards and sidways and can do this tuning process quicker. Then theres the ingnition tables. Fun isn't it. This is what you wanted, right????
As an expample, the M1.3 like Ill be using for my engine swap, has ~6 part throttle maps for all sorts of condtions plus the corresponding idle and WOT maps.
Can you just maximize the plot and do a screenshot? Ctrl-Prt Scrn, copy/paste into any image software as a .jpg. If you're on a Mac use Grab, but there's no way in hell your data logging is Mac compatible.
Best of luck, and enjoy your time at home.
-tammer
[QUOTE="Duke M535ti Backup"]I took her out for about 30 minutes and logged all of it. Here is some examples of what is going on. I will post a graph tomorrow, out of black ink. I can not fugure out how to save a data logging graph. I can print it and then scan it.[/QUOTE]
[QUOTE="gol10dr1"]guessing you got the maps i sent you?[/QUOTE]
Yea but it opens as a wintec2 file and the computer conversts it to wintec3. The tables are all 8 X 8, not 16 X 16. I don't think it can be what you are running your car on.
