[95gtSTANG]

Glad to hear it, I just glanced at the timeslips for the moment and I can tell you right now that most of the difference between run 3 and the others happened between the 60 and 330.

I'll hit up the logs after dinner.

P.S. Your MPH is looking good for a low 13, high 12.

I did notice that most of the difference occured by the 330 ft mark. I will have to look into my launch RPMs-I tried to launch harder than I did before even though I was on street tires. I am still not power shifting either-I am just shifting as quick as I can.
60-330 must still be in first gear so that is interesting-must be my launch I guess.

Wow you think I can get in to high 12s with this combo? I thought I would need at least gears and tires to get there.

[cougarnut281]

Oh yeah, you will need some gear and/or tires to get a 12, I am just saying the mph shows that the engine has the power to do it if you get the rest of the combo right.

[95gtSTANG]

My cursory analysis on the major differences in the last 3 runs:

Well I am not sure if I understand it but these are some of the observations from my last 3 runs, keep in mind run 3 was much faster-

Run 1-Commanded 12.6 Observed AFR 13 Spark 27
Run 2-Commanded 12.6 Observed AFR 13.5 (1st gear) ~13(4th gear) steadily decreased Spark 27
Run 3-Commanded 12.1 Observed AFR 13-12.9 Spark 28

Spark values I am quoting are basically the peak values I saw in the log during the first 2 gears I believe (since my improvement came early in run 3)-so basically I seemed to have run much better with an extra degree of timing and a slightly richer Lambse/AFR. The timing I makes sense but not sure about the richer mixture.

The tunes were the same so I am not exactly sure why the spark changed by a degree and the commanded lambse was much richer. I also did not notice anything compelling about my launch rpms from the 3 runs other than it was obvious I was trying different launch rpms. My shift RPMs were very similar which was interesting because I am not using a shift light. I don't think I rev'd higher than 5500 rpms.

So I still can't explain why my commanded lambse or spark are different in the runs....

[decipha]

usually when fueling gets thrown around like that's a failing pump relay fpr filter, or a bad seal from the fpr reference line to the manifold

[95gtSTANG]

usually when fueling gets thrown around like that's a failing pump relay fpr filter, or a bad seal from the fpr reference line to the manifold

You are going to have to ellaborate on what you mean it doesn't make much sense to me.

[MikeB]

usually when fueling gets thrown around like that's a failing pump relay, fuel filter, or a bad seal from the fuel pressure regulator reference line to the manifold

????????

[decipha]

disregard that i assumed you adjusted your fuel table to demand a richer mix, i missed the part where you stated it did it without user input

probably a function dumping in the excess fuel based off ect, UNLESS you didn't wait for startup enrichment to clear out before you made a pass

[95gtSTANG]

disregard that i assumed you adjusted your fuel table to demand a richer mix, i missed the part where you stated it did it without user input

probably a function dumping in the excess fuel based off ect, UNLESS you didn't wait for start up enrichment to clear out before you made a pass

There was no enrichment due to ECT- temp never got there. I thought start up enrichment could be likely (car stalled while doing a burnout) but if I understand the timing-most of the time had past for start up enrichment-I assume the timing tables are in seconds?? If I remember correctly start up enrichment could actually explain it-but I think enough time had past?!!??


Soo it looks like no one can explain my extra degree of timing and why the value of my lambses are different

[87coupe50]

Without looking at the logs (cause I'm at work) I would have to say that you need to look into multipliers/adders/reducers for spark and fuel in regards to ECT and ACT.

edit: looked at your .doc file... ACT starts off around 95* and drops to ~80* at the end of the run. I'll bet their are adders/reducers that are affecting your timing and LAMBSE. check your ECT also.