Data Logs! Post them here.

[makinen]

Originally Posted by solidONE

Looks pretty damn good. MafV goes as high as 4.13v which is as much as I've seen with my catless headers/stock airbox setup in cold weather. AFR look good except where LTFT was subtracting fuel at the lower range. Not too bad though. With a log looking like this I would not hesitate adding .5 or a degree of timing in the entire range. I'm sure there is a little more power on the table.

But that pull doesn't look like a good candidate to convert to dynograph with a lot of little dips and spikes in the rpm. I like to use 2 smoothing on virtual dyno.
http://datazap.me/u/makinenkr/201512...66-92-97-86-73

I would suggest doing many back to back pulls on a nice and flat/level surface to get good/consistent data for conversion. At least 3-4 pulls. I do about 10 in a row then a 3to4to5 gear at the end for good measure and good data to see if you can add or pull some timing for better power or knock resistance

Thanks for your comment.
Interesting point is, if I advance one cell by 0.350 at 2800RPM certain point IAM drops to 0.88.
Fortunately over 6800RPM, I can advance one or two clicks from above logged data so more flattened power output at those high area.

Edit:
After adding some ign advance to the high RPM and got FLKC -0.65 from 7343RPM just before retarding by the ign map.
http://datazap.me/u/makinenkr/201512...7-112&mark=107

For the Virtual Dyno graphs, smoothing works great! In my cases, smoothing 3 is more realistic I think.

[solidONE]

This pull is not a good candidate for conversion either. Do you have bouncy suspension or this is a rough road?
http://datazap.me/u/makinenkr/201512...84-81-79-80-78

@makinen This is a 3rd gear pull I did at a slight downhill grade.
http://datazap.me/u/solidone/cw1z2-1...5012&mark=4887

Notice there are no dips or spikes in the RPM. good candidate for conversion if I had done it on a level surface.

1smoothing coverted from this log

2 smoothing with same log:


While the curvature of the line reflects the actual output the line is shifted up by about 20~25 WHP at the peak from what I'd get on a level surface.

[makinen]

Originally Posted by solidONE

This pull is not a good candidate for conversion either. Do you have bouncy suspension or this is a rough road?
http://datazap.me/u/makinenkr/201512...84-81-79-80-78

My test course is little bumpy to my suspension (RCE Tarmac/Koni Yellow). Plus winter tyres do not grip well.
I've increased smoothing factor to 5 and the result resembles actual Dynojet numbers.

[Akya2120]

Maybe someone can help me here. For some reason OF Manager freezes every time I try to export my log. I am using windows 10, and I am not sure if it is an OFT issue or if it's an OS issue. When I click download all it will bring up the log file. Then when I click the log file it will go through a process and after that OFM is frozen. Not sure if it's actually downloading it or not, but I have been unsuccessful trying to find it. Thanks in advance for any help.

[DocWalt]

Make sure your OFM is up to date and make sure the OFT is up to date. Older OFT software would let you create logs that were too big (more than about 20 minutes) and would lock up the OFM. You might have to quickly click the delete button to get rid of the corrupted log file and make a new one after updating everything.

[Rifle]

Had some troubles in the last two weeks with my Twin Screw. Turns out my pre-o2 sensor exhaust leak (against block), was causing the sensor to read lean and dump gas into the block. Developed a bad knock. Pulled the oil, smelled like gas. Changed oil, stripped the car to stock, ran it for a week, no issues. Tuner sent me a new tune with less timing, ran that for a week with no issues. I flashed the final tune (original one) back on it, and have been running it for 24 hours now. I've also sent him these logs and am awaiting confirmation that I'm good to go. If anyone can take a look and tell me how these look, that'd be awesome.
There's a bunch of 2nd/3rd gear pulls, and one decent 4th pull. Wasn't on the highway, so I did what I could.
http://datazap.me/u/rifle/final?log=0&data=6

[DocWalt]

Originally Posted by Rifle

Had some troubles in the last two weeks with my Twin Screw. Turns out my pre-o2 sensor exhaust leak (against block), was causing the sensor to read lean and dump gas into the block. Developed a bad knock. Pulled the oil, smelled like gas. Changed oil, stripped the car to stock, ran it for a week, no issues. Tuner sent me a new tune with less timing, ran that for a week with no issues. I flashed the final tune (original one) back on it, and have been running it for 24 hours now. I've also sent him these logs and am awaiting confirmation that I'm good to go. If anyone can take a look and tell me how these look, that'd be awesome.
There's a bunch of 2nd/3rd gear pulls, and one decent 4th pull. Wasn't on the highway, so I did what I could.
http://datazap.me/u/rifle/final?log=0&data=6

IMO it looks a bit lean for FI and the trims during "normal" driving are pretty far negative.

[Rifle]

Originally Posted by DocWalt

IMO it looks a bit lean for FI and the trims during "normal" driving are pretty far negative.

It felt a bit weird, to tell you the truth. Just want to make sure I'm not starving the motor or anything. I'll see what he has to say. Thanks!

[solidONE]

Originally Posted by makinen

My test course is little bumpy to my suspension (RCE Tarmac/Koni Yellow). Plus winter tyres do not grip well.
I've increased smoothing factor to 5 and the result resembles actual Dynojet numbers.

Unless you want just some inconsistent and inaccurate dynographs to look at, you need to figure how to set it up so its at very least repeatable and consistent if not accurate. Otherwise those virtual dynos are pretty much useless as far as using it as data to gauge power output.

Virtual dyno can be very consistent and accurate if you do it correctly.

[Akya2120]

Originally Posted by DocWalt

Make sure your OFM is up to date and make sure the OFT is up to date. Older OFT software would let you create logs that were too big (more than about 20 minutes) and would lock up the OFM. You might have to quickly click the delete button to get rid of the corrupted log file and make a new one after updating everything.

I thought it was all up to date, I'll upload the most recent template, and I know I have the most recent OFM unless they updated it between Saturday and today. I guess I'll just have to delete the log and try again.

[steve99]

Originally Posted by Rifle

Had some troubles in the last two weeks with my Twin Screw. Turns out my pre-o2 sensor exhaust leak (against block), was causing the sensor to read lean and dump gas into the block. Developed a bad knock. Pulled the oil, smelled like gas. Changed oil, stripped the car to stock, ran it for a week, no issues. Tuner sent me a new tune with less timing, ran that for a week with no issues. I flashed the final tune (original one) back on it, and have been running it for 24 hours now. I've also sent him these logs and am awaiting confirmation that I'm good to go. If anyone can take a look and tell me how these look, that'd be awesome.
There's a bunch of 2nd/3rd gear pulls, and one decent 4th pull. Wasn't on the highway, so I did what I could.
http://datazap.me/u/rifle/final?log=0&data=6

Originally Posted by DocWalt

IMO it looks a bit lean for FI and the trims during "normal" driving are pretty far negative.

just remember the tuner may not have rescaled the o2 sensor, the stock o2 sensor scaling only reads down to about 11.8 afr so you cannot trust the afr reading it may be running richer.

[Rifle]

Originally Posted by steve99

just remember the tuner may not have rescaled the o2 sensor, the stock o2 sensor scaling only reads down to about 11.8 afr so you cannot trust the afr reading it may be running richer.

No clue. I'll ask!

[DocWalt]

Originally Posted by steve99

just remember the tuner may not have rescaled the o2 sensor, the stock o2 sensor scaling only reads down to about 11.8 afr so you cannot trust the afr reading it may be running richer.

True, but considering it was pretty lean at WOT (leaner than I am NA anyway) well before it got to 11.8...

[Kodename47]

Originally Posted by DocWalt

True, but considering it was pretty lean at WOT (leaner than I am NA anyway) well before it got to 11.8...

That's if you trust the sensor output as the genuine AFR....