Help me with this log please.

[supergoat]

Ok here is my log....

Throttle: 99.6%
RPM: 2562
AIRT: 50.9*c
EGRT: -28.2*c
ACLE: 0.0%
Injector Pules: 6.6ms
Knock: 43
ISCS: 12.1
Timing Advance: 4.3*
Barometer: 0.99 Bar
02: 0.72
FTRL: 81.1%
FTRM:81.1%
FTRH:81.1%
O2FT: 99.8%
MAFS: 383.6hz
AIRV: 2

What is wrong here? How can I get rid of this knock?

 

[kpt4321]

All kinds of issues here.

First of all, that is one point of a log, at 2500 rpm and 100% throttle. Not too useful.

If you want to log for WOT tuning, log from whenever boost comes on until redline in second, third, or fourth gear. Log only rpm, knock, and timing, unless you have a good reason to log other stuff.

If you want to log for idle or cruise, log the rpm, tps, and all the fuel trims (including O2 trim). There is no reason to save all that other crap, it just slows down the flow of the good information.

What are you using for injectors, air metering (hacked, unhacked, etc), what turbo, what boost?

Give us information about your setup, and take a better log, and we can give you a hand.


....Kyle T.
93 TSi AWD "TURBO4"
14b - 12.8 @ 108

 

[supergoat]

Alrighty.

I'll log a better run in a few minutes. As for my setup....

Stock turbo 450cc injectors
Walbro 255 fuel pump
Unhacked turbo maf.
BCS restrictor removed.

Be back in a few minutes.

 

[supergoat]

My logger software is MMCD and it's difficult to get every single RPM calculation from the slider bar so I got as close as I could with this damn stylus.

THIS WAS A 79% PART-THROTTLE RUN IN 2ND GEAR

RPM - KNOCK - TIMING ADVANCE - 02v
2500 - 4 - 6.9* - .79
2718 - 7 - 6.6* - .85
2906 - 7 - 5.9* - .93
3312 - 6 - 5.9* - .95
3687 - 5 - 5.5* - .95
3968 - 5 - 5.5* - .95
4343 - 4 - 5.3* - .95
4531 - 11 - 5.3* - .95
4906 - 10 - 4.7* - .95
5312 - 9 - 4.7* - .95
5593 - 9 - 5.1* - .95
5875 - 8 - 5.5* - .95
6187 - 8 - 5.3* - .95
6281 - 8 - 5.3* - .95

RAN OUT OF ROOM, SO I COULD NOT HIT 7000RPM

 

[supergoat]

THIS IS A 100% WOT RUN IN 2ND GEAR

RPM - KNOCK - TIMING ADVANCE - 02v
2093 - 0 - 6.9* - .46
2437 - 1 - 6.3* - .48
2781 - 0 - 6.1* - .50
3000 - 0 - 6.3* - .52
3375 - 0 - 6.1* - .56
3718 - 0 - 5.9* - .54
4000 - 0 - 5.7* - .60
4218 - 0 - 5.5* - .58
4562 - 0 - 5.7* - .58
5312 - 0 - 5.7* - .64
5531 - 0 - 6.1* - .66
5593 - 0 - 6.1* - .66
5843 - 0 - 6.3* - .66
5875 - 0 - 6.3* - .66
5906 - 0 - 6.3* - .66
6093 - 0 - 6.3* - .68
6250 - 0 - 6.1* - .68

GOT MAJOR WHEELSPIN AT 6000RPM DUE TO DAMP ROAD AND COULD NOT HIT 7000RPM

 

[kpt4321]

That timing is incredibly low, I do not know why. However, I am not very familiar with MMCD, so perhaps that can explain it. Anyone know more about this program?

Zero knock is good though.

...Kyle T.

 

[supergoat]

Well I'm assuming that figure is for my timing. The abbreveation MMCD uses for that figure is TIMA which I'm reading as Timing advance.

 

[supergoat]

Also, how does my 02 voltage look?

 

[Maarek]

I have been checking out MMCd also, and I get varied results on fuel trims with it. But I find that most information looks correct. I too get that low 40 knock, And it only happens at random times when I am at low rpms. When I go wot till 6000 rpms I get no knock to maybe 3-4 but every now and then Ill get the 40 knock that will retard my timing down to 5, I have found that its usually on deceleration and if I hit the gas when its doing it it bogs me down pretty bad. I am not driving my car much at the moment cause its venting and running extremely rich. I am waiting for my reducers to come to put on my GM Maf then I will see how things go after that. BTW the fuel trims i am getting with mmcd are L:83.9 M:92.5 H87.0 On tunerstein my trims are like L:137 M:158 H:154
Though keep in mind I am venting. I have only ran palmnstein once and thats what I got I logged a couple runs then stopped driving it till I can get that MAF installed. So I dont know which is right or how much of the MMCd information is true. I like the setup of it and i hate how palmnstein only shows three graphs and is pretty difficult to use always laggin. Anyways If it helps ill try to get some numbers up.

 

[supergoat]

I did some research and found that MMCD does not take into account the base timing. So my low values for timing advance apparantly is just the amount of advance from base.

Does that make sense to you? If so, do my logs look good then?

 

[FastRthenU]

On your 79 % throttle run, your O2 voltage looks rich to me.

But on you 100% throttle run, you o2 volts look really really lean???

what the hell is going on

Even if it does not take in to account, base timming. Which is only 5 degrees's advanced. You timming is still low. It should be high 20's. But atleast high teens.

 

[Maarek]

If mmcd didnt take into account your base timing, Why would you advance when you were knocking 40 by 4% and when not knocking be advancing 30% ? Least thats what mine does. And never retards goes to negative if I got you right? I dont think it does it that way?!? I could be wrong though.

 

[Maarek]

Try using palmnstein or a friend with pocketlogger and check your timing knock and rpm results. See what it comes up with.

 

[supergoat]

I just downloaded MMCD 1.4 withthe timing fix and other things corrected. I'll go log a run real quick.

 

[supergoat]

I just logged a few runs and now my part throttle and full throttle runs look pretty good. Only 2 counts of knock at most during art throttle and zero at full. 02 voltage is .89 at WOT and timing is around 20-23.

I can't hit 7000rpm though! I don't know if it's my crappy clutch or what! I hit 6812 and that was it.

at 6812, knock was 0, timing was 20* and 02 was reading .89v. I guess it's just my crappy stock clutch.

 

[kpt4321]

I do not understand why a bad clutch would limit what RPM you could travel to.

However, those latest results sound pretty good.


...Kyle T.

 

[supergoat]

Thanks.

As I get closer to redline the car seems to bog/stutter a bit and never really want to climb to 7000.

But my logs look to be just fine so I can't think that the engine is limiting itself. The only thing I can think of is the clutch. Now remember I turbo'd my NT and am still on the stock NT clutch, pushing 9.5psi through it.

Any other ideas would eb great. Could I be running too rich up there somehow?

 

[Maarek]

So you think the new version solved a lot of missinformation problem? Ill have to go out and try it soon. Does anyone know how bad lifter tick can affect the knock sensor and timing?

 

[supergoat]

Yea, logging with the new version is much better. My logs make more sense.

Also, I heard bad lifter tick can really do a number on your knock count.

 

[tsi_turboawd]

which is more accurate MMCD or Tunerstein?

 

[deusxmachina]

Originally posted by tsi_turboawd
which is more accurate MMCD or Tunerstein?

I've been using them both and they both seem pretty much the same, just different. Tunerstein logs knock as degrees of timing retard, while it looks like MMCD logs the knock sum. They also use different values for the fuel trims, I think. Tunerstein's range is like 120-227, so 100% trim doesn't say 100.

They both work very well and both seem to report the same information in their own way. If I want graphs, which I usually don't, I tend to use MMCD. If I want to watch a bunch of digital readings at once, I use Tunerstein. If I want to watch two or three digital readings at once, I use Tunerstein's big numbers screen. If I want to just monitor knock, I use MMCD's one big number display.

They're both free and they're both good, so play with them both.

 

[tsi_turboawd]

thanks. now i just need the ver1.4 MMCD

btw, at WOT i am getting 42-43 knocks with 4-5* timing @6500-7000rpms

i am running 17psi check my mods

 

[dave99gst]

wheel spin @ 6600 in 3rd ? ( yer suposed to tune/log in 3rd )