Timing is good, but still have a few questions

[Sun_Ice4]

I need your thots on this log. I've got my timing looking good, but what I don't understand is it seems to take awhile to hit full boost. (Timing hits it's lowest at 4800 rpm) I was expecting it to be at it's lowest in the high 3k's??

I'm running with a Turbonetics T3/T04E 50 Trim. Is this normal for that turbo?

Also, I have read about the Airflow value and increasing the PSI.. but to be honest I still don't understand how to tell if I can increase boost. I don't think 20-22 psi is out of the question on pump 94 gas, but I don't know how to interpret the airflow. Anyone care to explain? What's your opinion.. should I increase boost more?

Okay, here's the log, 3rd gear pull, running at 18psi.

RPM Time Airflow 02
3535 27 5.57 0.22
3590 27 5.76 0.82
3625 26 5.95 0.74
3680 25 6.10 0.66
3727 25 6.19 0.18
3777 25 6.35 0.82
3844 25 6.41 0.56
3902 26 6.62 0.56
3957 25 6.80 0.32
4012 25 7.11 0.88
4066 24 7.63 0.92
4145 24 8.15 0.92
4215 23 8.74 0.92
4289 21 9.60 0.92
4355 20 10.73 0.92
4492 19 11.90 0.94
4578 17 13.05 0.94
4723 14 15.42 0.94
4883 13 16.82 0.96
5012 14 17.30 0.96
5172 14 17.77 0.96
5316 15 18.07 0.96
5469 16 18.45 0.96
5602 17 19.05 0.96
5813 18 19.41 0.94
6113 20 20.02 0.94
6324 20 20.83 0.94
6473 21 21.31 0.94
6602 21 21.62 0.94
6734 21 21.96 0.94


And in case you need to know, my SAFC settings are:

RPMs Hi Thrt Low Thrt
1000 -12% -13%
2000 -13% -11%
3000 -17% -9%
3500 -19% -8%
4000 -24% -10%
5000 -26% -7%
6000 -33% -6%
7000 -33% -6%

Low at 30%
High at 60%

Thanks for the help!

 

[weith1111]

When do you see full boost on your gauge?

You have boost leaks. Even a few minute ones will be detrimental to your tune.