[WrxToBeamerGuy]

Originally Posted by Gray M140ix

Many thanks for your help.
I'll install OEM NKG tomorrow and try to create new Logs.
My tuner also says that other vehicles with the same setup can be driven at 15-18 degrees without any problems

Your tuner is right, but I don't see why hes trying to run 15-18 degrees instead of increasing the boost, 22psi is pretty low for an upgraded turbo.

Pull the plugs, look at them and see if they look bad. Put in stock plugs it could be as simple as that. Your STFTs looked fine, your vanos looked fine, your load target / actual looked fine, your rail pressure looked fine. To me it looks like its a mechanical issue and i'd start looking at the easiest component to diagnose which are the spark plugs.

As for the gap of 0.019, its completely necessary to gap your spark plugs. I've pushed cars past 30psi on the stock gap with a pure850 or daw UF without issue.

[Shoodaa]

Hi guys,

could you please take a look at my log and give me your opinion on it?

My setup:
- M240i (automatic, rear wheel drive) LCI without OPF (from 09/2018)
- approx. 70.000 km
- M Performance exhaust
- stock downpipe
- new service (including oil change, spark plugs and ignition coils) 1 month ago
- xHP Stage 2
- MHD Stage 1 (at 95ron) but I get 102roz from the gas station

Run: https://datazap.me/u/shoodaa/1812-te...43-44-45-46-47

1st "pull" - medium load from 100 - 200 km/h (normal mode)
2nd pull - full throttle from 100 - 200 km/h (normal mode)
3rd pull - full throttle from 100 - 200 km/h (sport mode)

I don't notice any problems while driving, but after checking the logs I noticed timing corrections up to -7.5 degrees. I also started first with MDH Stage 1 (98roz) and saw some timing corrections there as well, thats why I did the oil change together with a replacement of spark plugs and ignition coils and went down to the map for 95roz. I could also check if I find the previous logs.

Also no corrections that are caused by knocking.

Thank you in advance!

[WrxToBeamerGuy]

Originally Posted by Shoodaa

Hi guys,

could you please take a look at my log and give me your opinion on it?

My setup:
- M240i (automatic, rear wheel drive) LCI without OPF (from 09/2018)
- approx. 70.000 km
- M Performance exhaust
- stock downpipe
- new service (including oil change, spark plugs and ignition coils) 1 month ago
- xHP Stage 2
- MHD Stage 1 (at 95ron) but I get 102roz from the gas station

Run: https://datazap.me/u/shoodaa/1812-te...43-44-45-46-47

1st "pull" - medium load from 100 - 200 km/h (normal mode)
2nd pull - full throttle from 100 - 200 km/h (normal mode)
3rd pull - full throttle from 100 - 200 km/h (sport mode)

I don't notice any problems while driving, but after checking the logs I noticed timing corrections up to -7.5 degrees. I also started first with MDH Stage 1 (98roz) and saw some timing corrections there as well, thats why I did the oil change together with a replacement of spark plugs and ignition coils and went down to the map for 95roz. I could also check if I find the previous logs.

Also no corrections that are caused by knocking.

Thank you in advance!

Looks perfectly acceptable, nothing to worry about! Large corrections on 1 cylinder can happen occasionally, its not a problem.

[Gray M140ix]

Originally Posted by WrxToBeamerGuy

Your tuner is right, but I don't see why hes trying to run 15-18 degrees instead of increasing the boost, 22psi is pretty low for an upgraded turbo.

Pull the plugs, look at them and see if they look bad. Put in stock plugs it could be as simple as that. Your STFTs looked fine, your vanos looked fine, your load target / actual looked fine, your rail pressure looked fine. To me it looks like its a mechanical issue and i'd start looking at the easiest component to diagnose which are the spark plugs.

As for the gap of 0.019, its completely necessary to gap your spark plugs. I've pushed cars past 30psi on the stock gap with a pure850 or daw UF without issue.

Yesterday I changed the spark plugs to NGK with OEM gap. The combustion chamber and cylinders look normal.
Car runs smoother.

Attached is a photo of the spark plug from the 1st cylinder. The others look the same.





I made new logs. Some are good and some are not. It still feels like there is a lack of performance. In the logs, the Vanos exhaust reacts slowly and fidgets back and forth.
I carried out the Vanos test with ISTA and lo and behold, the Vanos could not be adjusted and the test was aborted.



Run1
https://datazap.me/u/flom4/run1-e30?...48-49-50-51-63

Run2 (High timing corrections and timing delta for knock adapt.)
https://datazap.me/u/flom4/run2-e30?...46-47-48-49-50

Run3
https://datazap.me/u/flom4/run3-e30?log=0&data=3-23

Run4
https://datazap.me/u/flom4/run4-e30?log=0&data=3-23

Run5
https://datazap.me/u/flom4/run5-e30?log=0&data=3-23

I replaced both actuators 9,000 miles ago. Didn't look good.
The next guess would be the Vanos central valves.

Could this be the cause?

Thanks in advance for your time and feedback.

greeting
Flo

[WrxToBeamerGuy]

Originally Posted by Gray M140ix

Yesterday I changed the spark plugs to NGK with OEM gap. The combustion chamber and cylinders look normal.
Car runs smoother.

Attached is a photo of the spark plug from the 1st cylinder. The others look the same.





I made new logs. Some are good and some are not. It still feels like there is a lack of performance. In the logs, the Vanos exhaust reacts slowly and fidgets back and forth.
I carried out the Vanos test with ISTA and lo and behold, the Vanos could not be adjusted and the test was aborted.



Run1
https://datazap.me/u/flom4/run1-e30?...48-49-50-51-63

Run2 (High timing corrections and timing delta for knock adapt.)
https://datazap.me/u/flom4/run2-e30?...46-47-48-49-50

Run3
https://datazap.me/u/flom4/run3-e30?log=0&data=3-23

Run4
https://datazap.me/u/flom4/run4-e30?log=0&data=3-23

Run5
https://datazap.me/u/flom4/run5-e30?log=0&data=3-23

I replaced both actuators 9,000 miles ago. Didn't look good.
The next guess would be the Vanos central valves.

Could this be the cause?

Thanks in advance for your time and feedback.

greeting
Flo

Flo it seems like you have isolated your problem. Now the question is, did you start getting performance issues after you replaced the vanos solenoids 9k miles ago? If so, hope that it is because of the new solenoids. Replacing the central valves is a LOT more work.

[Shoodaa]

Originally Posted by WrxToBeamerGuy

Looks perfectly acceptable, nothing to worry about! Large corrections on 1 cylinder can happen occasionally, its not a problem.

Perfect, thank you! I'll also ask MHD just to be on the safe side, but they need logs with psi instead of bar. I recorded some new logs today and I changed bar to psi only for the display but not for the logs

[blacksapphire440i]

I'm just gonna drop my DAW V2.5+, DS2, E10-E50 FF log here to show everybody what my current setup is doing.

https://datazap.me/u/universalg/v37-e43-dec-9 - MOST RECENT LOG E43 BOOSTING 25-26psi

https://datazap.me/u/universalg/v25-december - RECENT LOG E43 BOOSTING 27-29psi

I'm planning to go full frame soon

[nosam1g]

Originally Posted by blacksapphire440i

I'm just gonna drop my DAW V2.5+, DS2, E10-E50 FF log here to show everybody what my current setup is doing.

https://datazap.me/u/universalg/v37-e43-dec-9 - MOST RECENT LOG E43 BOOSTING 25-26psi

https://datazap.me/u/universalg/v25-december - RECENT LOG E43 BOOSTING 27-29psi

I'm planning to go full frame soon

dam i bet it feels fast lol .. y not upgrade the trans first ? then can run 30psi

[Gray M140ix]

Originally Posted by WrxToBeamerGuy

Flo it seems like you have isolated your problem. Now the question is, did you start getting performance issues after you replaced the vanos solenoids 9k miles ago? If so, hope that it is because of the new solenoids. Replacing the central valves is a LOT more work.

I hope so. No, after replacing the Vanos solenoids everything was fine. Yesterday I exchanged these again for new ones. Unfortunately no change.

I have now ordered everything I need to change the central valves. I also ordered 6 new Bosch fuel injectors and a new BMW OEM valve cover.

In January I will change everything and report back with the results.

Thank you in advance for your help and your time.

greeting
Flo

[Krisztian93]

Hi Guys, i Have B58 made log everything perfect , but im new to tune and IAT numbers what counts normal Compared to Ambient Temp? Like I measured 27.8 celsius IAT AT 8.5 outside Temperature is this normal? Summer i measured at OUTSIDE temp 32 celsius IAT was 46 celsius are these numbers Okay? Thx

[Skyhigh]

Yes they are. IAT will always be appreciably higher than ambient. One wants to keep them as low as practically possible.

[ycilgin]

Hello,
My 2018 M240i runs a stage 1 map tuned by my local tuner and 95 octane fuel is used. My car feels really slow and sluggish especially when the car gets warmer. This feelings is a lot more noticable in lower gears. It revs up so slowly as if something is holding it back. I see some torque limiters kicking in and I have no idea what they mean. Can someone please review my log?

5th gear:

https://datazap.me/u/ycilgin/5th-gea...og=0&data=5-28

2nd gear:

https://datazap.me/u/ycilgin/sorun-2...og=0&data=5-28

[g340ix]

Originally Posted by ycilgin

Hello,
My 2018 M240i runs a stage 1 map tuned by my local tuner and 95 octane fuel is used. My car feels really slow and sluggish especially when the car gets warmer. This feelings is a lot more noticable in lower gears. It revs up so slowly as if something is holding it back. I see some torque limiters kicking in and I have no idea what they mean. Can someone please review my log?

5th gear:

https://datazap.me/u/ycilgin/5th-gea...og=0&data=5-28

2nd gear:

https://datazap.me/u/ycilgin/sorun-2...og=0&data=5-28

I'm not sure how much I can help with a review, but I can say do not floor it from 1500 rpm in 5th gear, 4th gear from 2500 is the highest gear and lowest rpm I would use for logging.

[Krisztian93]

Thanks for answering

[blacksapphire440i]

Originally Posted by nosam1g

dam i bet it feels fast lol .. y not upgrade the trans first ? then can run 30psi

I plan to keep everything within the safe limits of the trans. 30PSI on a hybrid turbo is not the move. The back pressure and cylinder heat caused by running 30PSI+ on a hybrid just isnt worth it. That is why Id rather go with a full frame single turbo kit to minimize the back pressure thus allowing you to run more timing advance.

[McBobby Jr]

Originally Posted by blacksapphire440i

I plan to keep everything within the safe limits of the trans. 30PSI on a hybrid turbo is not the move. The back pressure and cylinder heat caused by running 30PSI+ on a hybrid just isnt worth it. That is why Id rather go with a full frame single turbo kit to minimize the back pressure thus allowing you to run more timing advance.

Glad someone can mention this for once, many motors recently have been having piston failures and some may think it’s horsepower related which it is but it’s more so mainly due to the high amount of cylinder and back pressure cause by these small turbine housing, short and small runner hybrid turbos running over 30 psi and having peak torque come in over 650wtq between 3-3.5k rpm. Also running the stock 3.15” exhaust does not help when it comes to back pressure especially on a hybrid turbo running 30+psi.

[kozak_g30]

Originally Posted by blacksapphire440i

I'm just gonna drop my DAW V2.5+, DS2, E10-E50 FF log here to show everybody what my current setup is doing.

https://datazap.me/u/universalg/v37-e43-dec-9 - MOST RECENT LOG E43 BOOSTING 25-26psi

https://datazap.me/u/universalg/v25-december - RECENT LOG E43 BOOSTING 27-29psi

I'm planning to go full frame soon

did you measure it at dyno ?

[ycilgin]

Originally Posted by ycilgin

Hello,
My 2018 M240i runs a stage 1 map tuned by my local tuner and 95 octane fuel is used. My car feels really slow and sluggish especially when the car gets warmer. This feelings is a lot more noticable in lower gears. It revs up so slowly as if something is holding it back. I see some torque limiters kicking in and I have no idea what they mean. Can someone please review my log?

5th gear:

https://datazap.me/u/ycilgin/5th-gea...og=0&data=5-28

2nd gear:

https://datazap.me/u/ycilgin/sorun-2...og=0&data=5-28

Am I having a boost leak?

[Gray M140ix]

Originally Posted by WrxToBeamerGuy

Flo it seems like you have isolated your problem. Now the question is, did you start getting performance issues after you replaced the vanos solenoids 9k miles ago? If so, hope that it is because of the new solenoids. Replacing the central valves is a LOT more work.

Yesterday I replaced the Vanos actuator and Vanos central valve on the intake and exhaust side.
In addition, I replaced the valve cover and all injectors.

Would have been too nice, but it didn't solve the problem. VANOS system could not be adjusted during test on the inlet side.
It runs much smoother at idle and when driving it also feels more power and less timing delta for knock adap.

Chain length is very good, no wear on the cylinder head or camshaft to be seen. The engine is easy to spin. Steering times were also perfect.
I also checked all the cables.

Unfortunately, I didn't know how to test the Vanos adjustment unit for wear. I will now also replace these on the inlet and outlet side. I hope it solves my problem.

Otherwise I have no idea anymore

Run1
https://datazap.me/u/flom4/run1-e30-0?log=0&data=3-23

Run2
https://datazap.me/u/flom4/run2-e30-0?log=0&data=3-23

Run3
https://datazap.me/u/flom4/run3-e30-0?log=0&data=3-23


greetings
Flo

[M2C]

Originally Posted by blacksapphire440i

I'm just gonna drop my DAW V2.5+, DS2, E10-E50 FF log here to show everybody what my current setup is doing.

https://datazap.me/u/universalg/v37-e43-dec-9 - MOST RECENT LOG E43 BOOSTING 25-26psi

Quite interesting boost target with 25 psi starting already by 2,500 rpm all the way until redline. Until now, I only saw tunes where the boost target steadily increased from the beginning. For example with 21psi at 2,500 rpm and then 0.5 psi per 500 rpm.

Maybe that's the reason why the actual boost is showing some waves in the beginning (26-23-26-23 psi) until it stabilizes.

[blacksapphire440i]

Originally Posted by M2C

Quite interesting boost target with 25 psi starting already by 2,500 rpm all the way until redline. Until now, I only saw tunes where the boost target steadily increased from the beginning. For example with 21psi at 2,500 rpm and then 0.5 psi per 500 rpm.

Maybe that's the reason why the actual boost is showing some waves in the beginning (26-23-26-23 psi) until it stabilizes.

https://datazap.me/u/universalg/v25-2023-part-1

https://datazap.me/u/universalg/v25-part-2

boost looks beautiful from 4th to 5th. I believe the boost shows waves due to the tuner and turbo spooling quick as balls

these datazap logs also have 2 logs within them each and they all look fantastic even tho im maxed the hell out!

[WrxToBeamerGuy]

Originally Posted by ycilgin

Am I having a boost leak?

Sorry no one replied to you sooner. No I don't think you have a boost leak I think there is something wrong with this tune. If you look at "load actual" and "load target" it absolutely should not be decreasing down to 160 from 190 and then increasing again. It doesn't make much sense. Is this the "final revision" can you have your tuner fix this with the next revision?

As stated previously though, please never floor the car in a high gear at a very low RPM it can cause predetonation.