ECMlink WOT Log

[LTUDSM]

After i dialed in my idle and cruise,i went to do a wot tuning. Did 4 pulls,made some huge adjustments,because my timing and afr tables were out of wack. So Here it is. I want you guys to suggest of what i could adjust more to get more power out of my car. BTW is it good to advance timing from lets say 1500- 3500 rpm range to help the turbo spool quicker? or it's not a good idea? because my (fp red ) has a huge lag to 4000 rpms.

 

[snowborder714]

Do you really expect to start a pull or really start pushing the car at 1500 RPM's? I would focus on about 3k and up if it were me. If you're starting a pull that low, then it's going to take a while to spool.

First of all, I only see a WOT pull from 5500 RPM on up. You need to start it lower, around 3k or so. Get one and post it up.


Your MaxOct table looks weird. I won't be able to really evaluate it without a full WOT pull.

 

[LTUDSM]

here is a log 3rd and 4th gear

 

[snowborder714]

Thanks for that, Marius. I'll take a look at it tomorrow evening. It's really hard to analyze logs on a 12" laptop screen

Just from a quick glance, you do need some airflow adjustments, so I'll post up what I find.

 

[LTUDSM]

Thanks Brian.....

 

[snowborder714]

Your fuel and timing tables are all over the place. I'd suggest loading the Evo8 mod1 tables (OpenLoopMaxOct and TmngMaxOct) as they're much smoother in the transitions. You can adjust them a bit later after we get things dialed in to lean it out or add timing.
v3configs [ECMTuning - wiki]

Can you do that and grab another 3rd gear only (100% TPS from 3k to redline) soon? Then with the smooth MaxOct DA table, I can easily calculate the necessary MAFComp changes to be made.

 

[LTUDSM]

Here is the log with evo8 mod1 timing and afr tables.

 

[snowborder714]

Try these settings. There's both MAF Comp slider changes and MaxOct DA changes, so make sure to save the DA changes with the car off, and then the MAF Comp can be done anytime.

 

[LTUDSM]

Brian,Did you made any adjustments at the timing table? because i see only some changes at the OpenLoopMaxOct table. Do you want me to make a log with these new settings?

 

[snowborder714]

No changes to the timing table. I want to see if leaning it out takes away the knock you're getting. Yes please on the new log.

 

[LTUDSM]

Yeahhh i see no knock,but its still on a rich side

 

[snowborder714]

New MAF Comp settings.


You should just drive down here and I'll tune it in person

 

[LTUDSM]

New MAF Comp settings.


You should just drive down here and I'll tune it in person

hehehe I wont even make like 3hr trip . Its good the the last three dsm meets were close enough from me (35 mins of driving) . I really appreciate your help Brian,Alot of guys will just tell where to make adjustments and thats it. But you are the MAN...

Question about the mafcomp adjustments:
what does it adjusts during WOT pull? Only airflow or also the fuel?? Need a log with the new MafComp adjustments?

 

[snowborder714]

It adjust both. It tells the ECU what to see airflow wise, and then that adjusts how much fuel it gives.

If you don't mind, another one would be nice

 

[LTUDSM]

Thats the worsest night for my car .Hate seeing her reaching 7000rpms. Ok im going to make another one. adjusting mafcomp,under witch table youre looking for changes?

 

[snowborder714]

I'm comparing AFRatioEst to your wideband reading mainly. Once these match up, your airflow will be tuned. Then you can just adjust the fuel and timing DA tables to what you want to run.

 

[LTUDSM]

New Log

 

[LTUDSM]

from which to which range of rpm's 5000 to 5500?

 

[snowborder714]

No, over the course of the whole log.

It's lining up pretty close now. Some more small adjustments and it'll be good. I'll take a look at it and post back some new adjustments for you to try another day.

You have a little knock at the end, which may be from it going a bit leaner than it should have. I'll correct that, as well as drop the timing in the DA table for now.

 

[LTUDSM]

No, over the course of the whole log.

It's lining up pretty close now. Some more small adjustments and it'll be good. I'll take a look at it and post back some new adjustments for you to try another day.

You have a little knock at the end, which may be from it going a bit leaner than it should have. I'll correct that, as well as drop the timing in the DA table for now.

It prob knocking,because i ran out of methanol and almost out of the gas too DD But i might make one more pull...

 

[snowborder714]

Here's another file for you. Let me know when you get that one in and another pull done.


Also, if you wouldn't mind disconnecting the meth for the next couple logs so we can make sure it's tuned properly without it, that'd be helpful. Then when we enable it, we can adjust AFR and timing and be good.

 

[LTUDSM]

I will make a pull prob tomorrow,because today is raining like hell. dont want to risk going wot and lose the traction... Yea will disconnect the meth injection. BTW do you think it's safe to run 23 psi on a stock headgasket with ARP Headstuds?

 

[MY1GDSM]

BTW do you think it's safe to run 23 psi on a stock headgasket with ARP Headstuds?

You'll be fine as long as you don't hurt it with a bunch of knock.

Although anything much over 30psi the standard ARP's probably won't cut it, an L19's would be a good Idea... .

I've been running 30 psi on a a Stock gasket with Arp's for about 3 years with-out an Issue I do run e85 though so I'm a lot less likely to pick up any knock...

 

[LTUDSM]

Ok Brian,here is my last log with the mafcomp adjustments,that you made.

 

[snowborder714]

Was the meth disconnected?