Bent Rod?

[x35250]

Update: I received my OBD wifi agent yesterday and started monitoring the Dashboard on the STOCK map.

Any suggestions on other channels and values I should be looking at to assess the relative safety of any map?

Note it's generally not advisable to go balls-out when flashing to a new map. You need to allow the DME to adjust first, which can take awhile.

On the stock map, I monitored the following:

(1) Lambda (AFR) = 14.7 but ranges from 13-16 (or higher at idle or coasting). I know this should be a bit richer in the 12s at WOT, but I haven't seen that yet. The stock map probably runs leaner than any custom or OTS tune at WOT.

(2) Knock Detection = 0 at all times on both Efficient and Sport. So far, so good.

(3) Wastegate Duty Cycle - Didn't quite catch it as I was focusing more on Lambda and Knock Detection.

(4) Boost (Pre-Throttle)

(5) Boost Pressure (Target)

(6) Engine Speed

(7) Ignition Timing - BTW which one is most important during WOT or higher loads?

(8) MAF (lb/min)

My daily commute is pretty short, lacks highways, and had too much construction to really get into a good run. I don't think I had any true WOT runs. I also had a bit of trouble data-logging at all. Single tapping the gauges didn't seem to work and my connection must've been spotty. I had to restart the BM3 app several times.

Any input on channels is greatly appreciated.

[FSociety]

Originally Posted by x35250

Update: I received my OBD wifi agent yesterday and started monitoring the Dashboard on the STOCK map.

Any suggestions on other channels and values I should be looking at to assess the relative safety of any map?

Note it's generally not advisable to go balls-out when flashing to a new map. You need to allow the DME to adjust first, which can take awhile.

On the stock map, I monitored the following:

(1) Lambda (AFR) = 14.7 but ranges from 13-16 (or higher at idle or coasting). I know this should be a bit richer in the 12s at WOT, but I haven't seen that yet. The stock map probably runs leaner than any custom or OTS tune at WOT.

(2) Knock Detection = 0 at all times on both Efficient and Sport. So far, so good.

(3) Wastegate Duty Cycle - Didn't quite catch it as I was focusing more on Lambda and Knock Detection.

(4) Boost (Pre-Throttle)

(5) Boost Pressure (Target)

(6) Engine Speed

(7) Ignition Timing - BTW which one is most important during WOT or higher loads?

(8) MAF (lb/min)

My daily commute is pretty short, lacks highways, and had too much construction to really get into a good run. I don't think I had any true WOT runs. I also had a bit of trouble data-logging at all. Single tapping the gauges didn't seem to work and my connection must've been spotty. I had to restart the BM3 app several times.

Any input on channels is greatly appreciated.

The Default Datalog channels are already set for you
You can add Oil Temp to your Dashboard if you'd like, I do.

Make sure to use the Bar view to enjoy the auto-log feature

Do a few 3rd 2k rpm into other gears and can PM me i'll download teh csv and see if any knocks or so. BM3 Support Team is always helpful and will always advise if your fuel is bad or spark plugs are showing signs of faulty.

[x35250]

I'm getting a download error when trying to get the CSV file for some reason (already emailed PTF), but below are links to the chart. You can click on individual points to see all the default channels.

All of these were only on Efficient Mode only. I'll play around with Sport or Sport Plus, which is hopefully more rich than stoich.

AFRs are high on the stock map at 100% throttle, near 14.7 (stoich).

https://www.bootmod3.net/log?id=5ed0...90c655ccf3cf87

https://www.bootmod3.net/log?id=5ed0...90c65530e92293

https://www.bootmod3.net/log?id=5ed2...0b4312bfa12185

[x35250]

Got the spreadsheets to download using a computer instead of my phone. I formatted them to keep the column labels frozen and also highlighted in yellow where the accelerator pedal was 100% (WOT).

This is the STOCK map on Efficient and there seem to be some red flags.

(1) A couple knock events during WOT. Could these may be false knock based on the short duration and inconsistent occurrences?

(2) High boost target and pressure. Why is the DME targeting boost pressure in the 28+ psi range in some cases while the pre-throttle boost often hits 26+ psi? This seems really abnormal for a stock car with the only mod being a Meisterschaft catback exhaust unless the readings are wrong. I thought the stock max boost is 22 psi or so...

(3) WDC occasionally gets maxed out at 100%. Not much overhead.

(4) The car is pretty lean at WOT. AFR is around 14.7 in most cases, but ranges between 13-16 across these five datalogs.

Here are the logs. My car is has the DCT transmission so I ran the logs mostly in 4th gear. See if you can spot any other issues.

https://drive.google.com/file/d/1q_j...w?usp=drivesdk

https://drive.google.com/file/d/1nEE...w?usp=drivesdk

https://drive.google.com/file/d/1ifP...w?usp=drivesdk

https://drive.google.com/file/d/1KPC...w?usp=drivesdk

https://drive.google.com/file/d/1iXM...w?usp=drivesdk

[x35250]

Additional logs from today. Finally got on the highways.

STOCK map observations:
- AFRs are quite lean (14-16) even at WOT, but the stock map is designed to burn as much fuel as possible.
- I'm getting one or two knock events on every log, most often on part throttle. Spark knock? Need new plugs and O2 sensors?
- Ignition Timing 1 thru 4 are about the same in low throttle, but quite different at higher throttle.
- Seeing some negative timing values at higher throttle applications.

Efficient throttle:

https://drive.google.com/file/d/1tuX...w?usp=drivesdk

https://drive.google.com/file/d/1Y1g...w?usp=drivesdk

Sport throttle:

https://drive.google.com/file/d/1HPt...w?usp=drivesdk

Sport Plus throttle:

https://drive.google.com/file/d/1tDD...w?usp=drivesdk

[jairomvp182]

i doubt that stage 1 would do that, there is not enough torq on that tune, but sorry to hear.

[x35250]

Again, I'm throwing these datalogs up to provide some real, data-supported comparisons between the stock tune and the BM3 Stage 1 maps.

Thought I'd give the BM3 OTS Stage 1 93 octane map a try. The DME hasn't fully adjusted yet with only 13 miles, so I'm closely monitoring the Dashboard and Auto-Datalogging daily. So far, the OTS Stage 1 map appears to be better and more reliable than Stock unless I am totally reading the datalogs wrong.

Please review all of these and share your knowledge!

- AFRs at WOT are in the 12 range (instead of 14s)
- Knock Detection was present (like the stock map) but with much less frequency
- STFTs look good to me across all maps and ranges
- Ignition timing values are still inconsistent between banks 1 thru 4, but the Stage 1 map is much less erratic than the stock map at both part and wide open throttle


DATALOGS

Efficient Throttle (OTS Stage 1 93 gas):

https://drive.google.com/file/d/1KEL...w?usp=drivesdk

https://drive.google.com/file/d/1xET...w?usp=drivesdk

Efficient Throttle with Knock Detected at 64% accelerator pedal:

https://drive.google.com/file/d/1Vs3...w?usp=drivesdk

Sport Throttle:

https://drive.google.com/file/d/1mix...w?usp=drivesdk

[x35250]

I'm moving my updates to my own thread so I can stop hijacking this thread. Thanks for humoring me in the meantime and good luck with your situation Jonzny.

BM3 Recommended Live Monitoring Parameters https://f10.m5post.com/forums/showthread.php?t=1722371