[fast08]

Did some data log using enginuity (romraider). Mainly looking for knock events and my boost pressure. I did a brief 4th gear pull, feed back knock correction stays 0 all the time except 1 log event where it drops to -1.4. Fine learning knock correction goes to -2.8 at a later log event (otherwise 0). May be that's because I ease off the throttle briefly (chickened a bit, on public road lol) Should I be concerned ?

Only engine mod is a Cobb downpipe. Running 91 octane cali gas stage 2 map.

Thanks !

Acc Ped. Ang.  Engine Load    Engine Speed   FBKC           IAM            Knock Corr Adv Man. Rel Pres.
61.18          0.2            2793           0              1              0              -6.82
88.63          0.78           2795           0              1              0              1.6
95.29          1.49           2918           0              1              3.87           5.8
100            1.92           3026           0              1              4.22           11.32
100            2.47           3167           0              1              4.22           15.09
100            2.78           3336           0              1              3.35           15.53
100            2.76           3502           0              1              3.8            15.53
100            2.76           3664           0              1              4.2            15.53
100            2.8            3889           0              1              3.74           15.67
100            2.74           4028           0              1              3.25           15.53
100            2.8            4164           0              1              2.93           15.67
100            2.89           4339           0              1              2.78           15.82
100            2.85           4531           0              1              2.85           15.67
100            2.8            4662           0              1              3.28           15.67
100            2.84           4820           0              1              3.56           15.67
100            2.85           4993           0              1              3.4            16.11
100            2.91           5126           0              1              3.01           15.96
100            2.95           5287           0              1              2.88           15.96
100            2.92           5449           0              1              2.86           15.82
100            2.86           5572           0              1              2.85           15.67
100            2.82           5662           0              1              2.67           15.53
100            2.76           5791           0              1              2.64           15.53
76.08          2.73           5930           0              1              2.59           15.38
33.33          2.67           6090           0              1              2.91           -0.87
100            0.98           6124           0              1              0              9.58
100            2.31           6224           -1.4           1              1.59           14.95
100            2.58           6311           0              1              3.32           14.95
100            2.56           6370           0              1              3.29           15.09
0              2.54           6442           0              1              3.5            2.03
0              1.1            6454           0              1              0              -11.32
0              0.17           6440           0              1              0              -11.32
0              0.17           6209           0              1              0              -11.32
0              0.18           5879           0              1              0              -11.46
0              0.18           5604           0              1              0              -11.46
0              0.19           5318           0              1              0              -11.61
0              0.2            5036           0              1              0              -11.46

[BBBsti LTD]

I think you should log some more.... At least it is not knocking like crazy!

[fast08]

i logged quite a bit actually this is one of the few pulls that caught my attention i thought cobb maps does not knock am i reading this wrong?

[CenCali07STI]

Originally Posted by fast08

i logged quite a bit actually this is one of the few pulls that caught my attention i thought cobb maps does not knock am i reading this wrong?

Thats no guarantee every car runs different. They try their hardest though to get it to work with all cars. When I built my exhaust even with a catalytic converter in it mine hit boost cut (19.25psi) when target boost was 17.5 so I just bit the bullet and went and had it pro tuned.

[Skter505]

Im not an expert, but do use open source, and -1.4 once, doesnt really mean anything. Your always going to get a slight amount of knock, and according to that log, and you saying its the worst, it seems your doing ok. It is under high load high RPM, so you dont want anything really higher than that, but it looks ok. I am suprised your not boosting very high..what is target boost on that map??

[fast08]

Originally Posted by Skter505

Im not an expert, but do use open source, and -1.4 once, doesnt really mean anything. Your always going to get a slight amount of knock, and according to that log, and you saying its the worst, it seems your doing ok. It is under high load high RPM, so you dont want anything really higher than that, but it looks ok. I am suprised your not boosting very high..what is target boost on that map??

The logged target boost around the -ve FBKC is 17.xx . I'm a bit below that. Thanks.