B58 Log Review Thread

kern417 · 07-12-2021, 08:23 AM

Quote:

Originally Posted by WrxToBeamerGuy

Ah okay, so by a proper log you mean a 4th gear pull from 2,500 - 7k? I also logged myself cruising at 45mph and there were a bunch of timing pulls in 6th gear cruising without shifting and maintaining 45mph. Thanks kern417 I watch most of your videos.

Edit: I'll need to do it after I put new plugs in and my new intake in on Tuesday.

Edit 2: kern417 here is the log
https://datazap.me/u/wrxtobimmerguy/...38-39-40-41-42

I'm going to be frank in my response. This is just my personal opinion, so please don't go yelling at your tuner about this. I may not understand something about the tuning strategy he's using, but feel free to ask him more politely

Why the hell are your fuel pressure targets at 1800psi under load? That will cause poor fuel distribution and atomization, which will of course lead to timing pull and/or misfires. It's almost as if the fuel control is completely reversed. Fuel pressure targets go up under low load and drop under high load. Makes no sense.

If it's an attempt to get more boost without overwhelming the fuel system, it's not worth it. Lower boost target, increase rail pressure targets, and adjust timing as appropriate. This will likely fix your misfire issues as well, so at least get the tune fixed before replacing your spark plugs.

The B58 is a high compression direct injection engine. It cannot run efficiently at such low fuel pressures. Do you have any old logs to compare it too? Has rail pressure always been that low? Any codes?

WrxToBeamerGuy · 07-12-2021, 09:02 AM

Quote:

Originally Posted by kern417

I'm going to be frank in my response. This is just my personal opinion, so please don't go yelling at your tuner about this. I may not understand something about the tuning strategy he's using, but feel free to ask him more politely

Why the hell are your fuel pressure targets at 1800psi under load? That will cause poor fuel distribution and atomization, which will of course lead to timing pull and/or misfires. It's almost as if the fuel control is completely reversed. Fuel pressure targets go up under low load and drop under high load. Makes no sense.

If it's an attempt to get more boost without overwhelming the fuel system, it's not worth it. Lower boost target, increase rail pressure targets, and adjust timing as appropriate. This will likely fix your misfire issues as well, so at least get the tune fixed before replacing your spark plugs.

The B58 is a high compression direct injection engine. It cannot run efficiently at such low fuel pressures. Do you have any old logs to compare it too? Has rail pressure always been that low? Any codes?

Here is the final revision from last year:
https://datazap.me/u/wrxtobimmerguy/...n?log=0&data=3

Here is the first data log ever made on his baseline tune map:
https://datazap.me/u/wrxtobimmerguy/...0?log=0&data=3

I thought this tuner was one of the best tuners for the platform. Do you have any recommendations?

marcthedark · 07-12-2021, 10:10 AM

Quick Q

I'm running MHD Stage 2 with and will be moving to Az

Thinks MHD has no ACN "bad fuel" map. Should I go for Stage 2 91 or for Stage 1 91 (not sure if the tining changes between 1 > 2) to start with? Once I figure out logging (too much work too little time) I could check but I want to have a starting point

kern417 · 07-12-2021, 11:24 AM

Quote:

Originally Posted by WrxToBeamerGuy

Here is the final revision from last year:
https://datazap.me/u/wrxtobimmerguy/...n?log=0&data=3

Here is the first data log ever made on his baseline tune map:
https://datazap.me/u/wrxtobimmerguy/...0?log=0&data=3

I thought this tuner was one of the best tuners for the platform. Do you have any recommendations?

Again just my opinion:

I feel like that tune is on the bleeding edge of being safe. I would run an OTS map for your setup until you can get it fixed.

Other tuners I recommend are listed in the description of this video depending on what tuning platform you use. I am tuned by OdinTuned and very satisfied with the results.

SAKF_B58 · 07-12-2021, 11:30 AM

Quote:

Originally Posted by kern417

Again just my opinion:

I feel like that tune is on the bleeding edge of being safe. I would run an OTS map for your setup until you can get it fixed.

Other tuners I recommend are listed in the description of this video depending on what tuning platform you use. I am tuned by OdinTuned and very satisfied with the results.

I wasn’t happy with timing corrections and riding the knock limits even with the ots tunes and the drivability wasn’t great.

Kirill at OdinTuned managed to correct these issues and fine tuned it to my conditions and fuel quality and it’s very nice to drive. I would also highly recommend !

WrxToBeamerGuy · 07-12-2021, 11:37 AM

Quote:

Originally Posted by SAKF_B58

I wasn’t happy with timing corrections and riding the knock limits even with the ots tunes and the drivability wasn’t great.

Kirill at OdinTuned managed to correct these issues and fine tuned it to my conditions and fuel quality and it’s very nice to drive. I would also highly recommend !

Hell yeah odin tuned it is! Thanks kern417 and SAKF

Is it through Williams performance UK that I pay?

SAKF_B58 · 07-12-2021, 12:45 PM

Quote:

Originally Posted by WrxToBeamerGuy

Hell yeah odin tuned it is! Thanks kern417 and SAKF

Is it through Williams performance UK that I pay?

Yes or contact him via his insta page

WrxToBeamerGuy · 07-12-2021, 02:34 PM

Quote:

Originally Posted by SAKF_B58

Yes or contact him via his insta page

Well I reached out to him on whatsapp and insta but no response. While waiting Paul Johnsons company reached out so I'm giving them a shot.

kevmk81 · 07-13-2021, 09:52 PM

Tonight I ran my first log since making changes to my '16 340i. I'm a bit concerned about the cylinder timings.

https://datazap.me/u/kevmk81/log-162...37-38-39-40-41

Car:
xhp stage 1
mhd stage 1 93 octane
er catted downpipe (installed within the last week)
awe midpipe and axle back
FTP intake pipe (stock airbox with afe dry filter)
vrsf charge pipe
Shell 93 octane
38k miles
Spark plugs changed roughly 2k miles ago with NGK iridium. I believe they are gapped same as what the old ones were.

IMS-340C · 07-16-2021, 03:20 AM

It's really strange 23 C is not high ambient temperature at all and Shell fuel is a reputable fuel.

Quote:

Originally Posted by kevmk81

Not quite 30 C, more like 23 C. A couple hours earlier I drove home from work and it was more like 30 C which I did park in the sun instead of pulling into the garage like usual - and I have a black car. So my guess is there was some residual heat already built up. I am actually purchasing one of those AFE scoops - hoping that might bring down the IAT.

kriszty · 07-16-2021, 03:39 AM

Quote:

Originally Posted by kevmk81

Tonight I ran my first log since making changes to my '16 340i. I'm a bit concerned about the cylinder timings.

https://datazap.me/u/kevmk81/log-162...37-38-39-40-41

Car:
xhp stage 1
mhd stage 1 93 octane
er catted downpipe (installed within the last week)
awe midpipe and axle back
FTP intake pipe (stock airbox with afe dry filter)
vrsf charge pipe
Shell 93 octane
38k miles
Spark plugs changed roughly 2k miles ago with NGK iridium. I believe they are gapped same as what the old ones were.

small timing corrections are common with the B58, i saw already a lot of simular posts with the same issue. solution is to use a higher octan fuel ( 95 , or use 3-4 liters ethanol at full tank for more octan )

IMS-340C · 07-16-2021, 11:15 AM

Almost 4 degrees timing correction on all cylinders around 4500 RPM is not that small.

Also the timing delta for knock adaptation should be closer to zero.

Quote:

Originally Posted by kriszty

small timing corrections are common with the B58, i saw already a lot of simular posts with the same issue. solution is to use a higher octan fuel ( 95 , or use 3-4 liters ethanol at full tank for more octan )

fake_bimmer · 07-25-2021, 11:24 AM

It is very hot today, and an ambient temp shows 35.5℃
Nevertheless I tried to make some log today.
My car is 2017 340i RWD.
E.R catless downpipe
Akrapovic evolution line link pipe and exhaust.
CSF heat exchanger
K&N filter in stock air box
NGK94201 with stock gap
Genuine ignition coils: Eldor
TU_HPFP
M sports LSD
Maybe 98ron fuel that is sold as 'high-octane' gasoline in Japan

MHD stage2HPFP 98ron beta3 from Bigboost
xHP stage3 ver.1.7 with torque limiter off

I would like to understand the log especially about timing correction and
frequent torque limiter interference.
I appreciate your advise!

https://datazap.me/u/fakebimmer/log-...47-48-49-50-51

T_H_O_M_A_S · 07-26-2021, 06:14 AM

with those iat's its normal to have corrections ,

https://datazap.me/u/thomas/testmap-...37-38-39-40-41

im running also that stage2+ testmap from mhd

Jay5k · 07-27-2021, 03:03 AM

https://datazap.me/u/jptsunga/log-16...7-22-23&solo=7

Are these AFRs too lean?

kriszty · 07-27-2021, 04:52 AM

Quote:

Originally Posted by Jay5k

https://datazap.me/u/jptsunga/log-16...7-22-23&solo=7

Are these AFRs too lean?

Timings looks ok for me

gerry25 · 07-27-2021, 01:52 PM

hi everyone
im learning how to check my logs, can anybody check if my tune is running good?
i have catted downpipe
tu HPFP
hybrid turbo
mhd custom tune rev 9
https://datazap.me/u/tortuga92/rev-9...og=0&data=3-18

thanks in advance

kern417 · 07-28-2021, 10:47 AM

Quote:

Originally Posted by Jay5k

https://datazap.me/u/jptsunga/log-16...7-22-23&solo=7

Are these AFRs too lean?

It depends on the tuning strategy and the fuel you're running. IF you want it to be more rich then you can ask your tuner. But some people run it more lean as you add more ethanol since the alcohol creates a cooling effect.

kern417 · 07-28-2021, 10:50 AM

Quote:

Originally Posted by gerry25

hi everyone
im learning how to check my logs, can anybody check if my tune is running good?
i have catted downpipe
tu HPFP
hybrid turbo
mhd custom tune rev 9
https://datazap.me/u/tortuga92/rev-9...og=0&data=3-18

thanks in advance

Your cylinder 1 is pulling a lot of timing for some reason. if the tune isn't complete then let the tuner keep working on it.

Jay5k · 07-28-2021, 05:45 PM

Quote:

Originally Posted by kern417

It depends on the tuning strategy and the fuel you're running. IF you want it to be more rich then you can ask your tuner. But some people run it more lean as you add more ethanol since the alcohol creates a cooling effect.

Did you mean run it more rich? (more fuel more cooling). Would you say the AFRs are reasonable or should I ask my tuner to make it more rich?

SlowMo · 07-29-2021, 12:49 AM

Quote:

Originally Posted by gerry25

hi everyone
im learning how to check my logs, can anybody check if my tune is running good?
i have catted downpipe
tu HPFP
hybrid turbo
mhd custom tune rev 9
https://datazap.me/u/tortuga92/rev-9...og=0&data=3-18

thanks in advance

What is your altitude(elevation)? Looks pretty high?
That hybrid seems maxed out at quite low boost

kern417 · 07-29-2021, 07:36 AM

Quote:

Originally Posted by Jay5k

Did you mean run it more rich? (more fuel more cooling). Would you say the AFRs are reasonable or should I ask my tuner to make it more rich?

No I meant more lean. Richening AFRs improves cooling. But ethanol/methanol burn cooler than gas, so you can run it more lean in some instances without damaging anything.

It's probably fine. I'm assuming it continues to drop as you get towards redline. But again consult with your tuner.

07-12-2021, 10:10 AM	#1939
marcthedark Lieutenant 120 Rep 410 Posts Drives: M240i xdrive Convertible Join Date: Apr 2017 Location: Phoenix Metro Area iTrader: (0)	Quick Q I'm running MHD Stage 2 with and will be moving to Az Thinks MHD has no ACN "bad fuel" map. Should I go for Stage 2 91 or for Stage 1 91 (not sure if the tining changes between 1 > 2) to start with? Once I figure out logging (too much work too little time) I could check but I want to have a starting point
	Appreciate 0 Quote

07-13-2021, 09:52 PM	#1945
kevmk81 Private 7 Rep 58 Posts Drives: 2016 340i, 2016 Odyssey SE Join Date: Jan 2021 Location: Chatham, IL iTrader: (0)	Tonight I ran my first log since making changes to my '16 340i. I'm a bit concerned about the cylinder timings. https://datazap.me/u/kevmk81/log-162...37-38-39-40-41 Car: xhp stage 1 mhd stage 1 93 octane er catted downpipe (installed within the last week) awe midpipe and axle back FTP intake pipe (stock airbox with afe dry filter) vrsf charge pipe Shell 93 octane 38k miles Spark plugs changed roughly 2k miles ago with NGK iridium. I believe they are gapped same as what the old ones were. Last edited by kevmk81; 07-13-2021 at 10:18 PM..
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07-25-2021, 11:24 AM	#1949
fake_bimmer New Member 6 Rep 20 Posts Drives: BMW340iF30 Join Date: May 2020 Location: Japan iTrader: (0)	It is very hot today, and an ambient temp shows 35.5℃ Nevertheless I tried to make some log today. My car is 2017 340i RWD. E.R catless downpipe Akrapovic evolution line link pipe and exhaust. CSF heat exchanger K&N filter in stock air box NGK94201 with stock gap Genuine ignition coils: Eldor TU_HPFP M sports LSD Maybe 98ron fuel that is sold as 'high-octane' gasoline in Japan MHD stage2HPFP 98ron beta3 from Bigboost xHP stage3 ver.1.7 with torque limiter off I would like to understand the log especially about timing correction and frequent torque limiter interference. I appreciate your advise! https://datazap.me/u/fakebimmer/log-...47-48-49-50-51 __________________ fake_bimmer
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07-26-2021, 06:14 AM	#1950
T_H_O_M_A_S Second Lieutenant 188 Rep 282 Posts Drives: M140i Join Date: Mar 2019 Location: Belgium iTrader: (0)	with those iat's its normal to have corrections , https://datazap.me/u/thomas/testmap-...37-38-39-40-41 im running also that stage2+ testmap from mhd __________________ M140i DP , OPF delete , MHD stg2 93oct , xhp stg3
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07-27-2021, 03:03 AM	#1951
Jay5k Private First Class 86 Rep 154 Posts Drives: 2017 BMW 340i Join Date: May 2020 Location: San Francisco iTrader: (0)	https://datazap.me/u/jptsunga/log-16...7-22-23&solo=7 Are these AFRs too lean?
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07-27-2021, 01:52 PM	#1953
gerry25 Private 31 Rep 50 Posts Drives: bmw m240i Join Date: Jan 2018 Location: mexico iTrader: (0)	hi everyone im learning how to check my logs, can anybody check if my tune is running good? i have catted downpipe tu HPFP hybrid turbo mhd custom tune rev 9 https://datazap.me/u/tortuga92/rev-9...og=0&data=3-18 thanks in advance
	Appreciate 0 Quote