weird log...help a noob tuner....big16g 18psi

[Black95TSIawd]

RPM TIMING o2

3420.0 13.0 0.94
3680.0 8.0 0.96
3944.0 7.0 0.94
4204.0 8.0 0.96
4500.0 8.0 0.94
4780.0 8.0 0.94
5056.0 8.0 0.94
5332.0 8.0 0.94
5596.0 10.0 0.94
5888.0 10.0 0.94
6104.0 13.0 0.94
6336.0 11.0 0.96

i did take it to 7k, not sure why it cut off. I would like to eventually tune to 22psi on pump

 

[andymoraitis]

The log looks fairly rich (EVO VIII 560's flow close to 600 cc) and leads me to ask what your AFC settings are. A big concern is the low timing. You're losing gobs of power if you're only making 10-13 degrees in the higher RPM ranges. My guess is that leaning out in small increments and re-logging will get you headed in the right direction. As you take fuel away, be aware of dips in timing which can indicate knock. If your AFC settings are pretty much in line, then I'd check for boost leaks which could make you run rich as well.

Also in looking at your current setup, you should be able to deal with 20+ psi on pump if the FMIC can cool the air charge enough, but you'll need to keep in mind that the Big 16G isn't a very good pump gas turbo.

Hope that helps,

Andy

 

[Black95TSIawd]

From 4k to redline, i'll lean it out another 3% and see what the log shows.

 

[CanadianTSi]

Adjust your Byte Timing to get a better sample rate.

And about the 16G being a bad pump gas turbo I couldn't disagree more but hey to each his own

 

[OverboostXS]

And about the 16G being a bad pump gas turbo I couldn't disagree more but hey to each his own

Agreed, in my opinion no turbo is a good pump gas turbo, but the 16g is an all around excellent investment.

About the log it seems that you have a nice timing curve (but its too dang low) Like what was said earlier lean out for 3.5-4k up and re log you should see some better results.

 

[CanadianTSi]

In my opinion every turbo is a great pump gas turbo as I never run race gas

 

[OverboostXS]

In my opinion every turbo is a great pump gas turbo as I never run race gas

Oh but it works wonders. Especially now I'm paying 354 for a gallon of 94, 110 is only 425 down the street.

 

[hellotbone]

RPM TIMING o2

3420.0 13.0 0.94
3680.0 8.0 0.96
3944.0 7.0 0.94
4204.0 8.0 0.96
4500.0 8.0 0.94
4780.0 8.0 0.94
5056.0 8.0 0.94
5332.0 8.0 0.94
5596.0 10.0 0.94
5888.0 10.0 0.94
6104.0 13.0 0.94
6336.0 11.0 0.96

i did take it to 7k, not sure why it cut off. I would like to eventually tune to 22psi on pump

You can try going leaner but Im leaning more towards a boost leak then richness.