My first Log.. Evo3 16g

[bbray]

Any advice would be greatly appreciated. Evo3 16g @15psi, Evo 8 560cc injectors, pocketlogger. 3rd gear pull. Thanks in advance.

Rpm Timing o2

3199 22 0.12
3188 33 0.74
3160 33 0.18
3180 33 0.86
3242 29 0.1
3340 29 0.92
3516 20 0.9
3781 9 0.94
4012 9 0.94
4234 9 0.94
4473 9 0.94
4715 8 0.96
4945 9 0.96
5156 10 0.96
5367 11 0.96
5578 13 0.96
5793 13 0.96
6016 14 0.96

 

[PieEyedPiper]

Looks halfway decent to me!
But in the future you will want to stomp the gas at 2500rpm, include TPS readings and take it to 7grand.

This will give you a better picture of whats going on.

 

[bbray]

Looks halfway decent to me!
But in the future you will want to stomp the gas at 2500rpm, include TPS readings and take it to 7grand.

This will give you a better picture of whats going on.

Thanks for the advice. I will do another log tomorrow and post up my numbers. I will eventually be running 20psi. but i want to take my time to get there and make sure everything is running good. Is that knock at 4700rpms? Should my timing be so high up to 3500rpms?

Thanks again,
brandon

 

[Jordanbutter]

It could be knock but since it only drops a degree and then comes right back up its not something I would worry about. How ever when you raise the boost keep an eye out. Yes if you look at just about any log the timing is high and the o2 is low untill 3500ish. When it drops like thats usually also a sign of full boost, or at least boosting.

 

[Dream On]

Yep, that's knock. Anywhere you see the timing dip it shows up. As for the timing, it should start high and then drop around when the turbo spools.

 

[bbray]

Should i try to get those o2 numbers up befor 4700rpms or are they fine? By the look of this log does everything seem in good shape and motor happy? I will be installing my uego and front mount in the next couple weeks. So i will also be tuning with a wideband.

Thanks,
brandon

 

[Jordanbutter]

You could bring that .9 to a .92 just for a nice curve but renember the narrow band is not perfect, I wouldn't change anything till you get that uego. That way you'll really know. I'd say it looks like its all in good working order. You can rest well.

 

[bbray]

Thanks for your help. I will take another log tomorrow with the tps readings. I will also do it from 2500rpms all the way to 7000rpms and see what my numbers are. I will be installing my uego and front mount in like two weeks. Then i will be running 20 - 22psi on my evo3 16g.

 

[Eastwood95]

Once you check your TPS readings a couple times, and confirm that your at 100%, you don't need to include that in logs. You just want to do it a few times to make sure its good.

Your timing did hold from 3700-4700 rpm at 9 degrees, but your o2 volts still looked good. What are your AFC settings?

 

[bbray]

WIth that log they are all at -18. I will be doing another log within an hour or two.
Thanks,
Brandon

 

[bbray]

Once you check your TPS readings a couple times, and confirm that your at 100%, you don't need to include that in logs. You just want to do it a few times to make sure its good.

Your timing did hold from 3700-4700 rpm at 9 degrees, but your o2 volts still looked good. What are your AFC settings?

Should it not hold at 9 degrees like that?

 

[PieEyedPiper]

No, you want a continuous upwards curve. Held timing is knock.
I'm still voting for a better log to see the big picture rather than trying to make adjustments without enough scope on the situation.

 

[bbray]

Ok well I have done two logs today so far.

This first one is with tps.


RPM Timing TPS o2
2258 22 0 0
2391 29 85.27 0.9
2563 23 100.2 0.9
2785 19 100.2 0.9
3051 15 100.2 0.9
3371 8 100.2 0.94
3734 7 100.2 0.94
4078 9 100.2 0.94
4410 8 100.2 0.96
4688 8 100.2 0.96
5027 9 100.2 0.96
5285 10 100.2 0.96
5563 13 100.2 0.96
5805 13 100.2 0.96
6059 12 100.2 0.96
6262 13 100.2 0.96
6488 14 100.2 0.96
6684 14 100.2 0.96
6875 14 100.2 0.96
5582 13 16.5 0.7

 

[bbray]

This one is without the tps. Both were made in 3rd gear.

RPM Timing o2
3000 31 0.84
3117 28 0.92
3293 22 0.88
3516 15 0.9
3773 7 0.94
4055 7 0.94
4309 8 0.96
4582 8 0.96
4820 9 0.96
5082 10 0.96
5309 11 0.96
5547 11 0.96
5746 13 0.96
5953 13 0.96
6133 15 0.96
6297 14 0.96
6449 15 0.98
6586 14 0.98
6727 14 0.98
6867 14 0.98

 

[bbray]

So i think i need a little work after 6000rpms. I should add a little fuel right?

 

[cool_g_83]

Don't you want your o2 between 0.92-0.94?
Above = rich
Below = lean

 

[bbray]

Don't you want your o2 between 0.92-0.94?
Above = rich
Below = lean

I think it is best at .96. But the .98 is a little high. I guess i should lean it out a little up top and see if that gets rid of the pulled timing.

 

[JohnCIV_Talon]

From what I have been hearing as I showed my logs, was to tune for timing. The o2 sensor is not accurate. So you should lean out til you see knock. he is obviously seeing a little knock.

 

[bbray]

From what I have been hearing as I showed my logs, was to tune for timing. The o2 sensor is not accurate. So you should lean out til you see knock. he is obviously seeing a little knock.

Well if i am seeing knock then does that mean that i am too lean?

 

[Jordanbutter]

Not Always true! At times you can see knock from running too rich. If the o2 sensor is say .02 under correct then it would really be at 1.00 and thats way too rich. Seriously leave it where it is untill you get the wideband. This log had a better curve low and then got a little funky up top so leave the boost, worst case you are running rich/safe.

 

[cool_g_83]

So basically you can't get a good tune w/ just S-AFC and logger? I find that kind of hard to believe. I thought everyone praised having a logger so you can 'see what you're doing'

 

[JohnCIV_Talon]

No, you can tune just fine right now. You dont have to have a wideband too tune. Thats bull, although it helps. Richen it up a bit from 6k on and see what happens. Just 2% at each point above 6k. Then post another log. Your not getting knock from running to rich either, its not like your o2 readings are totally sky high.

 

[bbray]

I will add 2% from 6000rpms up and i will go do a log right now.
be right back

 

[bbray]

Ok i just did another log with adding 2% fuel.

RPM Timing o2
2211 17 0.94
2355 18 0.92
2520 17 0.94
2730 17 0.94
2926 12 0.94
3188 10 0.96
3457 6 0.96
3754 4 0.98
4063 6 0.98
4316 7 0.98
4586 7 0.98
4816 9 1
5031 9 1
5254 11 1
5445 12 1
5637 13 1
5785 12 1
5953 12 1
6086 14 1
6203 14 1
6355 15 1
6488 15 1
6586 15 1

 

[bbray]

I also just did this log.

RPM Timing o2
2191 30 0.22
2207 30 0.48
2230 30 0.9
2250 30 0.88
2313 30 0.9
2441 20 0.88
2582 18 0.92
2742 16 0.9
2914 11 0.92
3117 8 0.94
3340 3 0.96
3582 2 0.96
3820 4 0.96
4082 6 0.96
4293 6 0.96
4547 6 0.96
4750 8 0.98
4984 9 0.98
5199 9 0.98
5414 11 0.98
5598 12 0.98
5781 14 0.98
5957 13 0.98
6129 14 0.98
6309 14 0.98
6426 14 0.98
6586 14 0.98
6719 14 0.98
6918 14 0.98