Need some tuning advice please

[spyderturbo007]

Don't trust the SAFC reading of TPS. It will read the min and max voltage of the TPS and "assume" that they correspond to 0% TPS and 100% TPS. So, in other words, the SAFC will always show WOT as 100% even if it's really not. You need to look at the ECU's value for TPS.

You are ok for TPS, as anything that high will "show" the ECU WOT. I'm not sure about the fluctuation...... Normally if it's wrong it will still be stable.

Alright, so far we know that if you lean things out the knock starts to go away, negating that point where you hit fuel cut. So, we can guess that the knock from the 1st log was from being way too rich. Now that you have leaned things out, closer to where it should be, the rich knock dissappeared and fuel cut was delayed for about 1000rpm.

I'm going to advise that you lean it out even further, let's say another 5% across the Hi Throttle map and make another pull.

 

[DSM_23]

Don't trust the SAFC reading of TPS. It will read the min and max voltage of the TPS and "assume" that they correspond to 0% TPS and 100% TPS. So, in other words, the SAFC will always show WOT as 100% even if it's really not. You need to look at the ECU's value for TPS.

You are ok for TPS, as anything that high will "show" the ECU WOT. I'm not sure about the fluctuation...... Normally if it's wrong it will still be stable.

Alright, so far we know that if you lean things out the knock starts to go away, negating that point where you hit fuel cut. So, we can guess that the knock from the 1st log was from being way too rich. Now that you have leaned things out, closer to where it should be, the rich knock dissappeared and fuel cut was delayed for about 1000rpm.

I'm going to advise that you lean it out even further, let's say another 5% across the Hi Throttle map and make another pull.

Alrite I did some pulls today keep in mind the weather today is around 80 whereas the previous were in the 40s so I dont know how much a difference there will be I'll upload the logs later today but I so far have it leaned out to -15 ish without knock on my high map. above 6k im having to richen it up a tad, but guess what, no fuel cut . Now im hoping this isnt because of the warm weather....but I guess we'll see.

 

[spyderturbo007]

so far have it leaned out to -15 ish without knock on my high map. above 6k im having to richen it up a tad, but guess what, no fuel cut .

Ah, Ha! I knew it........where's Andy with my cookies!

Anyway, some will be due to the increase in temperature, but we are definately on the right track. I saw that you have a 2g MAS, which will offset about -18% of your corrections. 660cc baseline is about -32% to reach the stock AFR so you should end up around -18% just to hit the stock map. You should be able to pull out a couple more percent and work yourself into the 11:1 range.

So, even if you do hit fuel cut when the temperature drops, you still have some room to work.

I'll post back when you get your logs uploaded. Until then, enjoy your fuel cut free pulls!

 

[DSM_23]

Ok heres a log from not to long ago, it seemed to hit fuel cut about 7k almost even as you can tell from the log, I beleive this is because I richend it back from the previous logs because there was some knock there. this log however seems to have some mild knock throughout the rpm range which leads me to think I'll need to richen it back up but not enough where I'll hit the cut. Take a look......

TIMA O2-R TPS MAFS ERPM KNCK INJP
33.00 0.84 51.37 371.11 2937.50 1.00 4.86
31.00 0.06 60.00 402.56 3000.00 0.00 5.63
31.00 0.84 64.31 459.17 3093.75 0.00 6.14
30.00 0.82 65.10 528.36 3187.50 0.00 6.91
27.00 0.80 89.41 629.00 3312.50 0.00 8.70
24.00 0.80 92.55 761.09 3437.50 0.00 10.50
23.00 0.80 94.90 861.73 3625.00 5.00 11.78
20.00 0.84 94.90 886.89 3781.25 4.00 11.26
20.00 0.80 96.47 956.08 3968.75 3.00 11.26
20.00 0.82 94.90 1018.98 4125.00 3.00 12.54
20.00 0.84 93.73 1088.17 4312.50 2.00 12.29
22.00 0.84 92.94 1169.94 4500.00 2.00 13.31
20.00 0.84 94.90 1270.58 4687.50 8.00 13.57
19.00 0.82 96.47 1333.48 4875.00 8.00 13.57
19.00 0.82 97.25 1383.80 5031.25 7.00 13.82
18.00 0.84 97.65 1459.28 5187.50 7.00 14.08
19.00 0.86 93.73 1522.18 5375.00 7.00 14.59
19.00 0.80 92.94 1566.21 5562.50 7.00 15.36
20.00 0.82 97.65 1603.95 5718.75 6.00 15.10
22.00 0.82 95.29 1603.95 5875.00 6.00 15.87
22.00 0.82 92.94 1603.95 6062.50 5.00 16.13
21.00 0.80 98.82 1603.95 6218.75 5.00 16.38
20.00 0.84 97.65 1603.95 6343.75 4.00 16.38
18.00 0.84 97.25 1603.95 6468.75 4.00 15.10
18.00 0.76 94.90 1603.95 6562.50 3.00 16.64
19.00 0.02 98.82 1383.80 7093.75 3.00 12.03

 

[XxrusianxX]

starting to look like a pretty well tuned car, just a little more and you are good.