Timing dips up and down

[notractiongst]

Ok heres my problem at 3800 RPM i get about 18 Deg timing then at 4200 it dips to 12 deg , 4800 is 13 degrees5300 rp,m is 14 degrees then at 5800 RPM it goes to 18 Degrees then at 6200 it goes back ot 19 degrees and holds till redline wtf is going on here or is this normal? btw im a newb to logging

 

[1SloColt]

Well when do you start to build boost? If you start around 4k rpm then your timing curve is probably good. For instance, I start building boost at 3500rpm, so at 3k my timing is high, and as I build boost it goes down to about 11degrees at 3700 and then slowly rises to 22degrees by 7k rpm. What is your knock count? If you have no knock then I'd say you are running pretty solid, you just have to fine tune the SOB. But I have to look at the log in order to give you detailed advice.

 

[notractiongst]

I hit full boost at about 4000-4200 in 3rd gear so i gues it must be good but shouldnt my timing be back to around 18 degrees before like 5500- 6000 ? I have a 2g so i cant count knock but i can try to post the log

 

[CanadianTSi]

Your timming dips when boost hits...thats normal.

19 deg by redline is perfect

 

[notractiongst]

Thanks , just what i wanted to hear , can you tell me what you think of this log

3808 RPM 19 * timing o2 Voltage .92
4268 RPM 13 * timing o2 Voltage .94
4836 RPM 14 * timing o2 Voltage .94
5316 RPM 15 * timing o2 Voltage .96
5800 RPM 19 * timing o2 Voltage .96
6264 RPM 19 * timing o2 Voltage .48
My long term fuel trim for the whole pull was 3.0

Thats where i let off , if you want my StFT let me know
Thanks for the replys everyone