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      03-16-2023, 04:29 AM   #3455
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[QUOTE=talontdone;29915355]Why do you think my HPFP pressure drops so much? It is indeed super cold up here in Calgary ... IATs are dropping as I get it into it up till about peak TQ, then start to turn upwards again.... I wonder if it's my LPFP struggling to keep

Wow, strong boost with that GC, makes me think i should be in a comfort zone around 25psi with ease with this turbo... your happy with it?
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      03-16-2023, 02:37 PM   #3456
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Quote:
Originally Posted by Cobra358 View Post
I am running BM3 E50 tune. At E50 fuel, I get a pressure drop to 2200. At E47/48, pressure holds at 2500+, timing holds as well. I am running the TU pump.

I have never had a back fire or any stumble due to rail pressure drop. I do wonder how low is too low? 2300/2000/1600? Anyone know?

It only does it down low before 5kish rpm, then the pump catches up through the rest of the gears.
Any drop is bad tbh but from expirience I would say low 2000ish is max I'd be comfortable with and even then it better be rare.
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      03-16-2023, 09:16 PM   #3457
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[QUOTE=Jnat;29940141]
Quote:
Originally Posted by talontdone View Post
Why do you think my HPFP pressure drops so much? It is indeed super cold up here in Calgary ... IATs are dropping as I get it into it up till about peak TQ, then start to turn upwards again.... I wonder if it's my LPFP struggling to keep

Wow, strong boost with that GC, makes me think i should be in a comfort zone around 25psi with ease with this turbo... your happy with it?
Yes it’s a great street turbo. 25 psi will be no sweat at all for you. Best of luck with your setup!
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      03-16-2023, 10:03 PM   #3458
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Quote:
Originally Posted by talontdone View Post
Thoughts? Vargas GC on E40 just under 31 PSI and 14 degrees timing.

https://www.bootmod3.net/log?id=6400...729b3ae4e3cfb2
Don't worry about 2,500 thats not bad at all especially at your boost. Remember the more boost the more air, the more air the more fuel is needed, the more fuel needed the harder the hpfp works.

But I would recommend at least getting a log of full 3rd gear into a second or 2 of 4th gear to see how it behaves when you shift.
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      03-16-2023, 11:47 PM   #3459
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Hi everybody I was checking over my car for this upcoming summer and found some shadow codes present. I cleared them and ran a few logs with my 2016 340i. I'm not great at reading logs so I'd like someone to check them over. From my understanding it looks like I have crazy timing corrections. AFR's seem like they're good. On the initial WOT my car might be slightly over boosting, but seems to recover and go back to normal. The logs are posted below.

I've had intermittent shadow codes that I've seen pop up over the 6 months I've had the car. The car pulls great, but in daily driving activities I've noticed minor lurching when shifting and slight sluggishness in comfort/eco pro compared to 3 months ago. Codes posted below also.

I’ve seen the shadow codes 20E120 and 102A22. CDB309 was always there once I tuned the car. The other two shadow codes 118001 and 11CF30 are new to me. MHD scan at the bottom of this post.

Any thoughts are appreciated thanks

2016 BMW 340i X-Drive (50,456 miles)
MHD Stage 2+ 93 Oct
xHP Stage 2
Catless DP
VRSF CP
B58TU HPFP
MST CAI

Original injectors
Plugs (NGK 94201KT2) and Coils (Bosch 0986221124KT1) have 5000 miles on them
Oil changed 2000 miles ago (Liqui Moly 5w-30)

Outside atmosphere temp: 40 degrees fahrenheit during logs

https://datazap.me/u/calebkrey/test-...46-47-48-49-54

- DME active codes -
CDB309 - No message (climate air distribution status, 0x2E6), receiver DME, transmitter IHKA.

- DME shadow (inactive) codes -
102A22 - Hot film air mass meter, signal: too high.
118001 - Mixture control: Fuel-air mixture too lean.
11CF30 - Mixture control: Multiple fault.
20E120 - Crankcase ventilation, vent hose: not connected/faulty.

- Transmission active codes -
None

- Misc. information -
3/16/2023
MHD 4.0.1
Voltage 12.22 V
Last flashed file : v3.6 stg2 hpfp 93_98
VIN: WBA8B7G57GNT14679
Factory software:
HWEL 3074 v003_019_009
HWAP 307D v255_255_255
BTLD 3075 v000_001_025
SWFF 3076 v010_007_005
TPRG 347E v010_007_007

Current software:
HWEL 3074 v003_019_009
HWAP 307D v255_255_255
BTLD 3075 v000_001_032
SWFF 3076 v080_017_003
TPRG 347E v080_017_004
CAFD 2742 v000_145_006
Current PRG (hex): 3076501103
ECU build date: 2015.10.09

ECU status: -

- Readiness -
Misfire: Complete.
Fuel System: Complete.
Components: Complete.
Catalyst: Not avail.
Heated Catalyst: Not avail.
Evaporative System: Complete.
Secondary Air System: Not avail.
A/C Refrigerant: Not avail.
Oxygen Sensor: Complete.
Oxygen Sensor Heater: Complete.
EGR System: Complete.
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      03-17-2023, 09:19 AM   #3460
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Quote:
Originally Posted by CalebKrey View Post
Hi everybody I was checking over my car for this upcoming summer and found some shadow codes present. I cleared them and ran a few logs with my 2016 340i. I'm not great at reading logs so I'd like someone to check them over. From my understanding it looks like I have crazy timing corrections. AFR's seem like they're good. On the initial WOT my car might be slightly over boosting, but seems to recover and go back to normal. The logs are posted below.

I've had intermittent shadow codes that I've seen pop up over the 6 months I've had the car. The car pulls great, but in daily driving activities I've noticed minor lurching when shifting and slight sluggishness in comfort/eco pro compared to 3 months ago. Codes posted below also.

I’ve seen the shadow codes 20E120 and 102A22. CDB309 was always there once I tuned the car. The other two shadow codes 118001 and 11CF30 are new to me. MHD scan at the bottom of this post.

Any thoughts are appreciated thanks

2016 BMW 340i X-Drive (50,456 miles)
MHD Stage 2+ 93 Oct
xHP Stage 2
Catless DP
VRSF CP
B58TU HPFP
MST CAI

Original injectors
Plugs (NGK 94201KT2) and Coils (Bosch 0986221124KT1) have 5000 miles on them
Oil changed 2000 miles ago (Liqui Moly 5w-30)

Outside atmosphere temp: 40 degrees fahrenheit during logs

https://datazap.me/u/calebkrey/test-...46-47-48-49-54

- DME active codes -
CDB309 - No message (climate air distribution status, 0x2E6), receiver DME, transmitter IHKA.

- DME shadow (inactive) codes -
102A22 - Hot film air mass meter, signal: too high.
118001 - Mixture control: Fuel-air mixture too lean.
11CF30 - Mixture control: Multiple fault.
20E120 - Crankcase ventilation, vent hose: not connected/faulty.

- Transmission active codes -
None

- Misc. information -
3/16/2023
MHD 4.0.1
Voltage 12.22 V
Last flashed file : v3.6 stg2 hpfp 93_98
VIN: WBA8B7G57GNT14679
Factory software:
HWEL 3074 v003_019_009
HWAP 307D v255_255_255
BTLD 3075 v000_001_025
SWFF 3076 v010_007_005
TPRG 347E v010_007_007

Current software:
HWEL 3074 v003_019_009
HWAP 307D v255_255_255
BTLD 3075 v000_001_032
SWFF 3076 v080_017_003
TPRG 347E v080_017_004
CAFD 2742 v000_145_006
Current PRG (hex): 3076501103
ECU build date: 2015.10.09

ECU status: -

- Readiness -
Misfire: Complete.
Fuel System: Complete.
Components: Complete.
Catalyst: Not avail.
Heated Catalyst: Not avail.
Evaporative System: Complete.
Secondary Air System: Not avail.
A/C Refrigerant: Not avail.
Oxygen Sensor: Complete.
Oxygen Sensor Heater: Complete.
EGR System: Complete.
The log looks good, you dont have anything to worry about. Stage 2+ is always going to have timing corrections on pump gas alone and yours aren't out of the ordinary.
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      03-17-2023, 09:22 AM   #3461
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Quote:
Originally Posted by WrxToBeamerGuy View Post
The log looks good, you dont have anything to worry about. Stage 2+ is always going to have timing corrections on pump gas alone and yours aren't out of the ordinary.
Wow that’s great. Do you suggest I should just start running the Stage 2 tune or try adding 1-2 gallons of e85 to smooth out the timing?
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      03-17-2023, 09:34 AM   #3462
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Quote:
Originally Posted by CalebKrey View Post
Wow that’s great. Do you suggest I should just start running the Stage 2 tune or try adding 1-2 gallons of e85 to smooth out the timing?
Yeah exactly, 1 - 2 gallons of E will make the car much happier. That overboost you were concerned about is perfectly fine as well, +-10 above or below the requested load isnt a big deal as long as it corrects itself.
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      03-17-2023, 01:36 PM   #3463
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Quote:
Originally Posted by martin_3991 View Post
If we are aloud to talk about this it’s oké for me. If I will remove it.
I use 5l bio-ethanol from 95% and add around 47 liter Ron 98. I never measured it. Don’t know how ☺️ if some one would like to tell me. Let me know.
I now order a canister from 20l 100% bio-ethanol. But with the flexfuel it’s not a big problem anymore. It adjust to the % ethanol.
The most important information for me is to get a healthy car. I don’t chase max power or torque
I wouldn't use bio-ethanol. If not mistaken, the other 5% is water. An ethanol sensor will see that as 100% ethanol (it reads the absence of fuel, not actual ethanol).
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      03-17-2023, 03:34 PM   #3464
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Quote:
Originally Posted by MadToy View Post
I wouldn't use bio-ethanol. If not mistaken, the other 5% is water. An ethanol sensor will see that as 100% ethanol (it reads the absence of fuel, not actual ethanol).
And what would you use then, in absence of E85 pump fuel?
Do you think your pump fuel is water-free? And your fuel tank has no water in it? Especially in the winter? Utopia ...
But I agree with one thing - the higher quality - the better, especially if bigger quantities used.
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      03-17-2023, 05:19 PM   #3465
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Quote:
Originally Posted by Skyhigh View Post
And what would you use then, in absence of E85 pump fuel?
Do you think your pump fuel is water-free? And your fuel tank has no water in it? Especially in the winter? Utopia ...
But I agree with one thing - the higher quality - the better, especially if bigger quantities used.
Water doesn't bother me. My flex tune over estimating my E content does. 5% not a big deal, but 10% or so with a tune on the edge would. But that's just me.
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      03-17-2023, 06:37 PM   #3466
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10% ?
That would be pretty low quality Ethanol (90%).
Isn’t that what logs are for anyway? Or do you rely on the flex fuel system blindly?

I’d be much more concerned about the injectors and engine in general, than for not being able to extract the maximum power due to corrections.

Many use Bioethanol due to lack of E85 (which contains more pure Ethanol in theory… but what the reality is, only few know). If gasoline in say California is crap, what makes you think the E85 is mother’s milk?

So far I have not read any complaints from Bioethanol users, but as with everything else - one must be cautious and make sure to use quality products (and personally verify that, to the extent possible). This may even ensure higher quality blend than an unknown quality E85 pump gas.
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      03-19-2023, 03:50 AM   #3467
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Hello good people,

There are some values I don't understand, when reading my logs.

Could someone be so nice to explain what is:

-knock control ratio (I typically get values oscillating between 1 and 2)

-boost limit (%) (eg. 327%)

-load actual or load target (%): the value in my logs are often around 197-198. 197% of what?

Thank you!
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      03-24-2023, 03:02 PM   #3468
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MHD stage 2+ HPFP best map

Current build:

2018 BMW 540i
Mods: TU Pump, Catless DP, MST Intake, New Stock Gap plugs(Champion), New Ignition Coils(Went with red ones for the look, didn't need replaced)
MHD stage 2+ tune
XHP stage 3 tune

I have been trying different maps and e85 mixes for MHD stage 2+ HPFP as the 93 OCT map was having constant timing corrections.

I ended up finding that the stage 2+ HPFP 95OCT map with an e35-e38 blend runs perfectly and the stage 2+ HPFP e40 map on e45 runs almost perfectly but has an extremely high WGDG so I decided to run the 95OCT map. Below are the two logs, let me know what you guys think, curious if anybody else is running their setup this way as well to avoid high 90 WGDC.


STAGE 2+HPFP 95OCT on e37mix:
https://datazap.me/u/blakeroscoe/mhd...52&zoom=51-145

STAGE 2+HPFP E40 on e45mix: https://datazap.me/u/blakeroscoe/mhd...58&zoom=22-128
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      03-24-2023, 06:06 PM   #3469
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Quote:
Originally Posted by blake.roscoe View Post
Current build:

2018 BMW 540i
Mods: TU Pump, Catless DP, MST Intake, New Stock Gap plugs(Champion), New Ignition Coils(Went with red ones for the look, didn't need replaced)
MHD stage 2+ tune
XHP stage 3 tune

I have been trying different maps and e85 mixes for MHD stage 2+ HPFP as the 93 OCT map was having constant timing corrections.

I ended up finding that the stage 2+ HPFP 95OCT map with an e35-e38 blend runs perfectly and the stage 2+ HPFP e40 map on e45 runs almost perfectly but has an extremely high WGDG so I decided to run the 95OCT map. Below are the two logs, let me know what you guys think, curious if anybody else is running their setup this way as well to avoid high 90 WGDC.


STAGE 2+HPFP 95OCT on e37mix:
https://datazap.me/u/blakeroscoe/mhd...52&zoom=51-145

STAGE 2+HPFP E40 on e45mix: https://datazap.me/u/blakeroscoe/mhd...58&zoom=22-128
These are the two maps I usually run too (sometimes I switch to the 93oct if I really can't find E85). Same setup as you, b58 gen 1, tu hpfp, catless dp and xhp stage 3. I noticed the same thing that the 95oct map works well running 93 oct with around E30. To have absolutely no corrections on the E40 map you'd need over E40 in reality (probably closer to E50 as you say).

In terms of performance there's not so much in it I think between 95<->e40 except top end where the E40 is marginally faster. WGDC only goes over 90% shortly when you hit 6000+ rpm so I wouldn't worry too much about it personally. All 3 ots stage2+ maps by MHD (also the 93oct one) run really great combined with a bit of ethanol to perfect the timing advance. The MHD ots tunes seem really catered towards high octane.. with ethanol being the easiest solution for that.
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      03-25-2023, 04:11 AM   #3470
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Reply in regards to safe rail pressure levels.

Quote:
Originally Posted by DieselDuck View Post
These are the two maps I usually run too (sometimes I switch to the 93oct if I really can't find E85). Same setup as you, b58 gen 1, tu hpfp, catless dp and xhp stage 3. I noticed the same thing that the 95oct map works well running 93 oct with around E30. To have absolutely no corrections on the E40 map you'd need over E40 in reality (probably closer to E50 as you say).

In terms of performance there's not so much in it I think between 95<->e40 except top end where the E40 is marginally faster. WGDC only goes over 90% shortly when you hit 6000+ rpm so I wouldn't worry too much about it personally. All 3 ots stage2+ maps by MHD (also the 93oct one) run really great combined with a bit of ethanol to perfect the timing advance. The MHD ots tunes seem really catered towards high octane.. with ethanol being the easiest solution for that.
The only question I had was the rail pressure act vs target, mine does dip for a tad between shifts, is that normal on the e40 map? I also changed my RPM limits for each gear so I was able to get better draggy times while also preventing the WGDC from pushing into the higher 95+ like I've had before. Here is a log on e40 with e46ish, could you let me know if this rail pressure drop is normal as it is only during the shift for a quick second?

Log showing rail pressure act vs target: https://datazap.me/u/blakeroscoe/log...-49-58&solo=21

Log showing all data (same log): https://datazap.me/u/blakeroscoe/log...49&zoom=33-142
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      03-25-2023, 05:37 AM   #3471
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Quote:
Originally Posted by blake.roscoe View Post
The only question I had was the rail pressure act vs target, mine does dip for a tad between shifts, is that normal on the e40 map? I also changed my RPM limits for each gear so I was able to get better draggy times while also preventing the WGDC from pushing into the higher 95+ like I've had before. Here is a log on e40 with e46ish, could you let me know if this rail pressure drop is normal as it is only during the shift for a quick second?

Log showing rail pressure act vs target: https://datazap.me/u/blakeroscoe/log...-49-58&solo=21

Log showing all data (same log): https://datazap.me/u/blakeroscoe/log...49&zoom=33-142
These are some recent logs of mine

https://datazap.me/u/zd/vanos?log=0&data=18-19-21-26 (e40 st2+)

Even on 95oct map, same thing
https://datazap.me/u/zd/stg2-mhd-hpfp-95-102?log=0&data=18-19-21


Seems to do it too. No worries probably normal during shift
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      03-25-2023, 10:55 PM   #3472
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Rail pressure dropping during shifting happens to everyone nothing to worry about unless its dropping too low.
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      03-26-2023, 12:51 PM   #3473
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Hey guys-- I could use a 2nd set of eyes for these logs. Car is Gen 1 B58 8AT with Alabama pump 93 gas, and a high flow cat dp. I've been running BM3's OTS Stage 1 93 tune (even with High flow cat thinking it would be easier on the motor).

I did 2 pulls: a 2nd to 6th and a 3rd to 6th. Had a knock event in the 2nd to 6th pull when I shift to 5th which is concerning and also timing looks to exceed normal deviation. I know BM3 typically runs hot, and I'm thinking it's best to just flash to a 91 tune and use 93 pump. Curious what ya'lls thoughts are.

2nd to 6th (w/ knock event and whacky timing): https://www.bootmod3.net/log?id=6420...729b8bf2cee1a2

3rd to 6th (No knock but whacky timing corrections): https://www.bootmod3.net/log?id=6420...90c6b2c46455aa

Edit: Meant to mention I replaced plugs with OEM about 1k miles ago, car consistently uses Shell 93, and ~98k miles (50k of said miles with this tune).
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      03-26-2023, 06:14 PM   #3474
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Hey all, it's spring so I finally started custom tuning my B58 Supra. Have some questions around some things I am seeing in my logs.

Mods:
Pure700 turbo
Inlet pipe
MAP GESI catted downpipe
BM3 self tuning

First question: For some reason in my logs, both Torque and Load requested/actual drop below what I have set in the tables. You can see in the link below I have the load/torque tables flat 4,000 rpm, but in the logs it drops after 5500rpm. I notice the load limit data item is 200 until 5700rpm and then drops to 160. Is there a table I am missing? This is really messing up my boost curve.

http://norcalmotorsports.org/users/b...Load_Supra.png

Here is the datalog of the fourth gear pull: https://datazap.me/u/razorlab/pure70...33-34-41-42-49

Second question: Is there a way to get Bootmod3 to log gauge pressure? Both absolute and relative log total boost without subtracting atmospheric pressure.

Third question: What causes the throttle to close, load going over target or torque going over target? I'm noticing some throttle closures during the pull.

Fourth question: What's the best way to tune out the boost spikes between shifts? I am getting some pretty big spikes that are causing the throttle to close every shift.

You can see a multiple gear pull here with that issue: https://datazap.me/u/razorlab/mysupr...40&zoom=47-161

Also, if you see anything else in the logs that I should attend to, please let me know. I am still coming up to speed on tuning this platform!
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      03-28-2023, 08:32 PM   #3475
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Hey all,

Finally voided the warranty on my B58, ran some logs and I think there are some MAJOR issues with timing, corrections, and knock.

For some reason my timing dips into the negatives on throttle, is this normal? I am new to logging/tuning, and have compared my logs with others and it seems my timing, corrections, and knock is bad.

2017 340i xDrive - 52K Kilometers
Spark Plugs changed @ 34K Kilometers
Costco 91 Octane Fuel

Mods:
BM3 Stg 1 91 Octane
Custom Exhaust
XHP Stg 3

Log 1: https://datazap.me/u/trenaplex/stage...0-41-42&solo=7

Log 2: https://datazap.me/u/trenaplex/stage...1-42&solo=7-13

Log 3: https://datazap.me/u/trenaplex/stage...pm?log=0&data=

Any input appreciated.

Thanks
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      03-28-2023, 11:48 PM   #3476
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Quote:
Originally Posted by Trenaplex View Post
Hey all,

Finally voided the warranty on my B58, ran some logs and I think there are some MAJOR issues with timing, corrections, and knock.

For some reason my timing dips into the negatives on throttle, is this normal? I am new to logging/tuning, and have compared my logs with others and it seems my timing, corrections, and knock is bad.

2017 340i xDrive - 52K Kilometers
Spark Plugs changed @ 34K Kilometers
Costco 91 Octane Fuel

Mods:
BM3 Stg 1 91 Octane
Custom Exhaust
XHP Stg 3

Log 1: https://datazap.me/u/trenaplex/stage...0-41-42&solo=7

Log 2: https://datazap.me/u/trenaplex/stage...1-42&solo=7-13

Log 3: https://datazap.me/u/trenaplex/stage...pm?log=0&data=

Any input appreciated.

Thanks
It's acceptable, you got some corrections but nothing out of the ordinary especially considering you are using 91oct. Nothing looks worrysome in your logs. Add 1-2 gallons of e85 and you'll be good or just use 93oct if you really want all corrections gone.
Appreciate 0
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