My First Log, How Am I Running????

[hottboost]

Alright guys here is my first log...550's and safc not installed yet. done a @ 17psi...am i running lean??????

rpms o2 timing

3912 0.95 6
4200 0.95 6
4436 0.95 7
4648 0.95 7
4904 0.95 8
5124 0.95 9
5340 0.95 10
5548 0.95 11
5764 0.95 12
5952 0.95 13
6172 0.95 15
6344 0.95 15
6516 0.95 13

 

[hottboost]

Can Anybody Help!!

 

[luvmygst]

You installed 550's and not the SAFC I would almost promise you you are not running lean. Looking at your o2 readings you are running rich.(real rich I would say) You need to compensate for those injectors.

 

[hottboost]

No I havent did the 550's or Safc yet. Wanted to get an idea how i have been running. So what should I be shooting for?

 

[bluetlr2001]

Your 0.95 o2v look pretty good from my understanding of datalogging from what ive read. Mine runs 0.99-1.020 which is way to rich.

 

[hottboost]

How about the timing? From what Ive read I should want to tune it for 15-16 @ WOT.

 

[hottboost]

From what Im reading with my timing dropping under 15 @ WOT, it probally means that Im running to much boost for stock injectors? IE Knocking. Does anyone have an opinion?

 

[xveganxcowboyx]

I can only compare to what I get on my 1G, but it seems like your O2 is showing a bit rich (I run more like .85, which I've understood to be normal). Also, I would expect to see more timing, but it does climb allright without dropping off much.

You should redo the log from 3K RPM up to redline. How many parameters are you logging? It looks like a poor sample rate. If you can turn off some unneeded things that would be helpful.

 

[xveganxcowboyx]

From what Im reading with my timing dropping under 15 @ WOT, it probally means that Im running to much boost for stock injectors? IE Knocking. Does anyone have an opinion?

Can you measure injector duty cycle? That will give you an idea of how your injectors are taking it.

 

[hottboost]

I was logging rpms, o2voltage, timing, and airflow. It is the palm-n-stien system from obd loggers.com. From what I have researched you are right for a 1g but on 2g's the o2voltage should be no lower than 0.94 and no more than 0.96. If im understanding that right the only thing out of line is the timing. When it retards timing that can mean knock. Now im not for sure because I have no way to measure knock. If I am worng please correct me.

 

[xveganxcowboyx]

Again, I am no expert, but I would like to see a new run logged as I said before. It seems like you should be getting more samples, but that may be the way 2G's, that logger, that program, etc work. If you can measure injector duty cycle try swapping out the airflow for it. Then maybe drop the O2 on a second run to see if it will log faster.

Yes, timing will be pulled if your engine knocks. Then it should advance until it senses knock again.

 

[hottboost]

ok IVE been at work all day, it may be the middle of the week befor I get another log. Thanks for the help. Im new to the tuning side so Im trying to get a good grasp befor I use the safc. Also do ya thing for the next log I should try to run 16PSI. Last one was at about 17, give or take.

 

[xveganxcowboyx]

I would leave it the same, but that's just me. It probably won't make a massive difference. That's assuming your profile is accurate anyway.

 

[luvmygst]

I am runnin a 14b fmic and stock injectors. at 16 psi I am seing about .88-.91 on the o2 and the timing advances to about 19, what gear are you logging in? I would reset the cars computer, drive it around for awhile, then try another log. It s my understanding ( I could be wrong) that the computer has a dif. timing table if it has seen knock in the past, i.e. bad fuel etc. That is what the bcs was for. Worth a try though.

 

[hottboost]

Profile is accurate, havent did the 550's or safc yet. I will try to reset the computer and then Ill post a log.