First log... please help.. need advice

[spyderturbo007]

Nice log...I still don't see any real signs of knock, but I also didn't see any real changes in airflow...At RPM's above 6500, I think you have reached your max effeciency and are just blowing lots of hot air....

It seems the airflow numbers have been decreasing as the weeks go by, but I assume large changes in weather have unfolded also...hmmm

When leaning out the SAFC, you really won't see an increase in airflow. All we are doing is "showing" the ECU less air. This forces the ECU to inject less fuel and create an more complete burn and a lower AFR.

There was a change of about 0.8 lb/min, but that can be attributed to ambient temperatures. Personally, I have seen an increase up to 2 or 3 lbs/min of air just by a drop in temperature.

Go with what CanadianTSi said and yank out another 3% from 3k up.

 

[kraka]

Always trying to correct me...Did I say anything wrong?? No...

I understand how leaning out the fuel curve works, please stop trying to explain everything after I say it...

I was merely trying to tell him that there was no noticeable increase in power from the last log, but there were weather changes that could explain it.... I also mentioned that he doesn't need to do a pull past his effeciency range...

 

[spyderturbo007]

Always trying to correct me...Did I say anything wrong?? No...

I never said that you provided incorrect information, at least not in that post. I was just trying to expand on your post and expain why there was no increase in airflow.

I did call you on things in above posts and asked why you said what you did and asked for an explanation, but never received one. So I assumed that you re-thought your statements.

I understand how leaning out the fuel curve works, please stop trying to explain everything after I say it...

I am trying to explain to people how and why logs do what they do, instead of just providing generic statements such as "maybe it was the weather."

If you have an issue with me providing people with an explanation into the working of the ECU, then seriously, take a hike. I am here to help people and if you don't like others explaining why things happen, then why don't you expand on your own statements.

Nice log...I still don't see any real signs of knock, but I also didn't see any real changes in airflow

To someone who doesn't know how the log "should" work, they may interpret that statement to mean that they SHOULD be seeing an increase in airflow. I was trying to clarify your statement.

I think you are taking my statements the wrong way. Aren't we all here to help others???

 

[kraka]

Alright, I'm sorry...I don't want to get my beef mixed up with his need to get help...I just was kinda offended when after every post I made you had to quote and then say why you beg to differ or instead re-state my words except more in depth...I see that you were merely trying to help, and also why you have that extra rep point next to your name

I am moving on...

 

[spyderturbo007]

Alright, I'm sorry...I don't want to get my beef mixed up with his need to get help...I just was kinda offended when after every post I made you had to quote and then say why you beg to differ or instead re-state my words except more in depth...I see that you were merely trying to help, and also why you have that extra rep point next to your name

I am moving on...

I meant no offense by any of my statements. We just seem to approach things in different ways, which is by no means bad as it gives people different ways to achieve the same goal. A faster DSM!!!

I just try to explain the "how's and why's" in my posts so that people are able to rationalize why things happen the way they do. That will lead to an overall better understanding of why you do what you do when tuning. I think that will help us to have the best tuning section on the internet!!!


Once again, no offense intended.

 

[myeclipseisnice]

ok so i was going to make my run and i went to take another 3 out from 3k and up.... well by mistake i went into hi and lo throttle and it was set at lo 10% and high at 50% so then for some reason i dont think im suppose to have it at that setting.. is this ok? can someone explain or help before i make another run?

 

[CanadianTSi]

ok so i was going to make my run and i went to take another 3 out from 3k and up.... well by mistake i went into hi and lo throttle and it was set at lo 10% and high at 50% so then for some reason i dont think im suppose to have it at that setting.. is this ok? can someone explain or help before i make another run?

Change them to 30 and 80

 

[myeclipseisnice]

Change them to 30 and 80

ok i will. just a question... it wont change anything if i change it to 30 and 80? from 10 and 50?

 

[CanadianTSi]

No it won't, it's just more practical.

 

[97ClipseDSM]

ok i will. just a question... it wont change anything if i change it to 30 and 80? from 10 and 50?

30 is 80 is fine but personally i would do 35 and 70. Im getting ready to make a few logs on my car in a bit.

 

[myeclipseisnice]

ok. i fixed my check engine light and im ready to do another log... will log tomorrow.

 

[myeclipseisnice]

ok another log... 38 degrees... at 19 psi on my evoIII -12 on my afcII till 1000 then from 1000 rpm till 2800 its at -21 then -22 from 2800 till end....

RPM Air Timing O2
2800 6.46 17.5 .92
3072 8.37 11.5 .94
3412 12.12 7.5 .96
3788 13.20 9.0 .98
4208 14.83 9.5 .98
4544 16.2 11.0 .98
4896 17.78 11.0 .98
5264 18.57 14.0 .98
5588 19.27 13.5 .98
5888 19.90 16.5 .98
6180 20.85 14.5 1.00
6432 21.22 16.0 .98
6688 21.34 17.0 .98
6904 20.78 17.5 .98
7124 20.33 17.0 .98

 

[CanadianTSi]

Try -25 from 2800 on up, you could still probably go even leaner then that but do a log and use you own judgement.

 

[kraka]

Around 6100rpm there is a small timing retard...You might want to consider that...

Also, you can see after 6500rpm you stop making real power anyway, airflow # falls off after that point...No need to pull up to 7k

 

[myeclipseisnice]

ok here is another log... i leaned it by taking out 3% .....

RPM Air Timing o2
2760 6.81 16.5 .86
3008 9.38 9.5 .86
3352 12.25 10 .92
3752 13.82 9.5 .94
4140 15.35 11.2 .94
4504 16.9 12.5 .94
4876 18.11 11.5 .96
5216 19.45 13.5 .96
5556 19.83 16.0 .96
5868 21.25 16.5 .96
6152 21.54 18.0 .96
6420 21.56 18.5 .96
6676 21.19 19.5 .94
6904 20.83 18.5 .94

 

[spyderturbo007]

That's a purty' log you got there.

Anyway, pull another 1 or 2 % out from 4k to 6k.

By the way, how is she running compared to when we started this tuning?

 

[myeclipseisnice]

ok here is another log... i pulled another 2% out... the car runs great... speed wise and running over all... here it is 3rd gear pull... i just want to also thanks all the people that have replied and helped me out through my tunning so far

RPM AIR Timing O2
3296 1.47 32.5 .76
3352 6.75 23.0 .78
3612 12.86 10.0 .92
3988 14.53 12.5 .92
4420 16.46 11.0 .94
4776 17.52 12.5 .94
5144 18.97 14.5 .94
5524 19.46 15.5 .94
5852 20.71 17.0 .94
6160 21.26 18.5 .94
6440 21.17 20.5 .94
6712 21.14 20.5 .94
6956 20.71 22.5 .94
7136 20.36 20.5 .82

 

[spyderturbo007]

ok here is another log... i pulled another 2% out... the car runs great... speed wise and running over all...

What does the "butt dyno" say? I notice a huge difference when I finally got the Spyder tuned correctly.

i just want to also thanks all the people that have replied and helped me out through my tunning so far

Not a problem. We are all here for the same reason......a faster DSM.

Anyway, yank out another 1% from 3k up. Also, how many samples / second are you getting on the logger? I normally end up with about 60 data points when doing a 3rd gear pull.

 

[myeclipseisnice]

the butt dyno says thumbs up =)......
ok here is another log... this time its warmer outside about 58 and another 3rd gear pull... this time at 20PSI on my evo3...
RPM MAF Timing o2
2860 7.66 16.0 .78
3088 9.86 11.0 .88
3380 12.57 10.0 .92
3736 13.52 11.0 .92
4084 14.85 12.0 .92
4412 16.19 10.0 .92
4716 17.22 12.5 .94
5072 17.98 14.5 .94
5376 18.95 13.0 .94
5660 19.70 15.5 .94
5932 20.71 17.0 .94
6182 21.33 16.0 .94
6432 21.10 17.0 .94
6584 21.15 18.5 .94
6868 21.17 18.5 .92

 

[spyderturbo007]

You are starting to knock on that log. It could be the increase in boost or the increase in ambient temperature. I would try adding fuel around 4.5k and then again around 5 or 5.5k. What are your current correction numbers?

 

[myeclipseisnice]

ok so here is my other log again... 3rd gear... this time its a beautiful 70 outside... 20PSI .... my numbers now on my safcII are -12 till 2200 RPM, -25 from 2800 RPM till 5200RPM, 5800 RPM is -24 till 6400 RPM which turns to -26 then at 7000 RPM its -25.... Since im at 20 psi isnt it around 23 or so that the head starts to lift? because i dont wanna get crazy and damage stuff so i should be safe at 20 correct? if not please correct me. thank you... spyderturbo you been a great help so far From my last log i understand where the timing drops and all so i did add 2% of fuel to those rpms now this log doesnt seem to bad... when i first started tuning i didnt know anything and now that i see my logs and from what you guys tell me i understand it alot more and it makes me happy

RPM AIR Timing O2
2496 6.27 15.0 .90
2764 7.37 15.5 .84
3068 9.63 10.0 .88
3428 13.44 9.0 .92
3848 14.42 11.0 .92
4244 16.56 12.0 .94
4648 17.78 12.5 .94
503619.06 13.5 .94
5384 19.61 16.0 .94
572820.35 18.5 .94
6044 21.40 18.5 .94
6344 21.70 19.5 .94
6620 21.65 18.5 .94
6844 21.57 18.5 .94

 

[spyderturbo007]

Since im at 20 psi isnt it around 23 or so that the head starts to lift? because i dont wanna get crazy and damage stuff so i should be safe at 20 correct?

You should be fine. I have been running 20psi at around 33 or 34lbs / min for the last year or so with no problems. Also, the number (weather it be psi or airflow) that the head begins to lift is no set in stone. I have seen people get away with much more and people get away with much less, so it seems to be more car related.

spyderturbo you been a great help so far

No problem.

when i first started tuning i didnt know anything and now that i see my logs and from what you guys tell me i understand it alot more and it makes me happy

I love hearing stuff like this. Not only did you get your tune looking nice, but you also picked up the knowledge to keep it there as the seasons change.

RPM AIR Timing O2
2496 6.27 15.0 .90
2764 7.37 15.5 .84
3068 9.63 10.0 .88
3428 13.44 9.0 .92
3848 14.42 11.0 .92
4244 16.56 12.0 .94
4648 17.78 12.5 .94
503619.06 13.5 .94
5384 19.61 16.0 .94
572820.35 18.5 .94
6044 21.40 18.5 .94
6344 21.70 19.5 .94
6620 21.65 18.5 .94
6844 21.57 18.5 .94

Where did you go WOT on that log? I'm guessing around 3k? If so, everything looks great from there until 6.5k. You are loosing 1 degree to some knock. I can't be sure it's knock as it could be a jump in coolant temp, IAT, etc. Go ahead and add back 1 or 2% at 6k & 7k and see if it goes away. That should tell us if you are knocking or not.

Total airflow = 29.32 lbs/min

Not too shabby.

I would still like to see more sample / second from your logger but other than that, everything looks good.