[Saif2018]

Originally Posted by clopez976

btw i have a straight away road not far from my house on that last log i went there and from a dead stop turnded off DSC & Floored it ! the mhd is on my phone & it notifies me its mad a log i dont touch anything on log just upload it to datazip , as im still learing how to read it , i typically look at the rpm & boost psi , since thr fmic i used to be at 144 no it stuas around 99 so thats an improvement i will be upgraded the turbos & relocatiing the inlets next.

Yes other than the missing parameters and the fact that you probably lifted or didn't keep the throttle pinned the log looked good.

[clopez976]

Originally Posted by Saif2018

Yes other than the missing parameters and the fact that you probably lifted or didn't keep the throttle pinned the log looked good.

Thank you Sir here i figured out how to select the pareimeters you wanted to see,Thanks!


https://datazap.me/u/carlos-lopez/lo...og=0&data=3-25

[Saif2018]

Originally Posted by clopez976

Thank you Sir here i figured out how to select the pareimeters you wanted to see,Thanks!


https://datazap.me/u/carlos-lopez/lo...og=0&data=3-25

Mate do a 3rd gear log, in manual mode get the car upto 2500rpm in 3rd gear, have autologging ticked, then go WOT and keep the throttle pinned until the shift into 4th then back off.

[studio54]

MHD Stage 2+, Optimal shift point from log / virtualdyno ?

Hi,

I wanted to know if the optimal shift point (especially 2nd to 3rd, and 3rd to 4th) is different for each car depending on mods/fuel/and so on, and should calculated from a dyno or should be approximatively the same for every N54 engine (running the same map) ?

I noticed that on my logs, boost starts to be a bit of target, at 5950rpm.
According my virtualdyno results on 3rd gear, 91oct :

-V7: maxpower at 5550rpm / maxtorque at 4300rpm
-V9: maxpower at 5910rpm / maxtorque at 4000rpm

I usually shift at 6300-6500 rpm, it's probably too high ? 5900 rpms (or less?) seems a best choice for my car? what do you think?

what are your shifting points ?

[Saif2018]

Originally Posted by studio54

MHD Stage 2+, Optimal shift point from log / virtualdyno ?

Hi,

I wanted to know if the optimal shift point (especially 2nd to 3rd, and 3rd to 4th) is different for each car depending on mods/fuel/and so on, and should calculated from a dyno or should be approximatively the same for every N54 engine (running the same map) ?

I noticed that on my logs, boost starts to be a bit of target, at 5950rpm.
According my virtualdyno results on 3rd gear, 91oct :

-V7: maxpower at 5550rpm / maxtorque at 4300rpm
-V9: maxpower at 5910rpm / maxtorque at 4000rpm

I usually shift at 6300-6500 rpm, it's probably too high ? 5900 rpms (or less?) seems a best choice for my car? what do you think?

what are your shifting points ?

On stock turbos its around 6k, I've noticed the turbos start to struggle to hold boost from 5500rpm

Even on a custom tune, my stock turbos can't hold more than about 16psi up top,

[clopez976]

Originally Posted by Saif2018

Mate do a 3rd gear log, in manual mode get the car upto 2500rpm in 3rd gear, have autologging ticked, then go WOT and keep the throttle pinned until the shift into 4th then back off.

Ah I see what u mean do this in manual mode , understand now however I don’t ever drive or do anything in manual mode this car is fast in AT mode , I’ve posted here before to get feedback with anyone asking me to do this on a specific gear or in manual mode but I can understand you must want to see some specifics ? Let me try that later on & thanks for ur time.

[Saif2018]

Originally Posted by clopez976

Ah I see what u mean do this in manual mode , understand now however I don’t ever drive or do anything in manual mode this car is fast in AT mode , I’ve posted here before to get feedback with anyone asking me to do this on a specific gear or in manual mode but I can understand you must want to see some specifics ? Let me try that later on & thanks for ur time.

The shifts and throttle response is even better in M mode, plus you can hold gears and remain on boost and downshift to the correct gear without relying on kickdown and the downshifts are smoother, your missing out if all your doing is using AT mode. XHP TCU remap is a must in my opinion.

MHD states a proper log should be done from 3rd gear, about 2.5k to over 6k shift into 4th or let the TCU do it and then back off. 1st and 2nd gear are too short and 4th gear WOT would take you to 140mph or more, which is not recommended for logging for obvious reasons.

No worries.

[studio54]

V5 vs V7 vs V9 - 100-200 Speed MHD logs :


Link V5 : https://datazap.me/u/studio54/log-16...og=0&data=3-20

100-200kph or 62 mph-124mph (MHD speed): 9.67

Link V7 (difference in setup : 1M Thottle 100% and Forge DV) : https://datazap.me/u/studio54/log-16...og=0&data=3-20

100-200kph or 62 mph-124mph (MHD speed): 9.45

Link V9 : https://datazap.me/u/studio54/log-16...og=0&data=3-22

100-200kph (MHD speed): 9.69

Conclusion, V7 FTW since it's able to achieve same performance while applying less WGDC and less boost.

VirtualDyno just for fun :

[Saif2018]

Originally Posted by studio54

V5 vs V7 vs V9 - 100-200 Speed MHD logs :


Link V5 : https://datazap.me/u/studio54/log-16...og=0&data=3-20

100-200kph or 62 mph-124mph (MHD speed): 9.67

Link V7 (difference in setup : 1M Thottle 100% and Forge DV) : https://datazap.me/u/studio54/log-16...og=0&data=3-20

100-200kph or 62 mph-124mph (MHD speed): 9.45

Link V9 : https://datazap.me/u/studio54/log-16...og=0&data=3-22

100-200kph (MHD speed): 9.69

Conclusion, V7 FTW since it's able to achieve same performance while applying less WGDC and less boost.

VirtualDyno just for fun :

Butt dyno was right all along, haha. Great post Mate.

[Keystonezzz]

https://datazap.me/u/keystonezzzz/lo...og=0&data=4-19

Just wanting to put my worries to rest. Is this log normal for stage 1?
Intake, Exhaust and that's all

[spacey_n54]

Hi all, I just am finishing up some mandatory maintenance on my '09 E90 sedan, 6AT, xDrive, 107k miles. Current setup:

- Fuel injectors: Cyl 1-4 are index 11, cyl 5-6 are original, need to replace these still (all from previous owner)
- ARM catless DP's w/secondary cats intact
- ARM silicon stock location inlets
- ARM 7" intercooler w/3" hose upgrade kit
- VSRF Charge pipe
- Tial Q BOV with BMS 1/4" throttle body adapter
- MHD Stage 1+, 91 octane
- XHP Stage 2

Here are a couple logs from this evening:
https://datazap.me/u/spaceyn54/stage...og=1&data=3-20

A few questions:
Looks like there are definitely quite a few timing corrections, yikes. I am going to take it easy until I get these sorted. What should I try first?

It looks like it takes around 500rpm~ to reach boost target, is this normal with a 7" intercooler on OEM turbos? I can hear what sounds like the BOV struggling to close as the car builds boost (it's always done this even without the 1/4" adapter.)

STFT 1 is consistently lower than STFT 2, do those correspond to bank 1 & bank 2 respectively? Looks like AFR's are within .5 of each other, but bank 2 is always richer than bank 1. Could this be due to my difference in injectors? Or is something else out of wack, like bad O2's or an exhaust leak from the DP install?

There's huge drop in rail PSI near the 4th gear shift in log 1, is that normal?! Thanks for any insight.

[Renzke]

Hello community,

Could somebody have a look on my log please?
In my opinion the car is running fine under WOT. GPS 100-200km/h (62mph-124mph) in ~8,7s. I have other problems (my learning bits are not fully set for lambda and injector in INPA, Readiness is fine and set for all except catalysist due to MHD. No failure codes, no nothing, only slight uneveness @ idle.

Car - E90 N54 FBO, 75kmiles, IJE0S - MSD81, MT: Intercooler + chargepipe + catless dp's + inlets + stage 2 lpfp + FTP PCV valve + 335is Clutch + Mr.5 Intake + K&N filter in stock air filter box + NGK spark plugs (one step colder)
SW: MHD Stage2+ 102oct v9.0.

FYI for WGDC and slight overboost: Inlets installed but I'm not on a custom tune yet. (Next topic on my list ;-))

Q.: LTFT behaviour and LTFT '0' during WOT. Ist this normal?

WOT 3rd gear, short pause then 4th gear:
https://datazap.me/u/renzke/log-1634...20-22-23-24-29

[Saif2018]

Originally Posted by spacey_n54

Hi all, I just am finishing up some mandatory maintenance on my '09 E90 sedan, 6AT, xDrive, 107k miles. Current setup:

- Fuel injectors: Cyl 1-4 are index 11, cyl 5-6 are original, need to replace these still (all from previous owner)
- ARM catless DP's w/secondary cats intact
- ARM silicon stock location inlets
- ARM 7" intercooler w/3" hose upgrade kit
- VSRF Charge pipe
- Tial Q BOV with BMS 1/4" throttle body adapter
- MHD Stage 1+, 91 octane
- XHP Stage 2

Here are a couple logs from this evening:
https://datazap.me/u/spaceyn54/stage...og=1&data=3-20

A few questions:
Looks like there are definitely quite a few timing corrections, yikes. I am going to take it easy until I get these sorted. What should I try first?

It looks like it takes around 500rpm~ to reach boost target, is this normal with a 7" intercooler on OEM turbos? I can hear what sounds like the BOV struggling to close as the car builds boost (it's always done this even without the 1/4" adapter.)

STFT 1 is consistently lower than STFT 2, do those correspond to bank 1 & bank 2 respectively? Looks like AFR's are within .5 of each other, but bank 2 is always richer than bank 1. Could this be due to my difference in injectors? Or is something else out of wack, like bad O2's or an exhaust leak from the DP install?

There's huge drop in rail PSI near the 4th gear shift in log 1, is that normal?! Thanks for any insight.

500rpm for turbo's to hit boost targets is normal, wouldn't worry about that, your pretty close to boost targets.

Yes, STFT 1 and 2 refer to the banks respectively.

AFR's look fine to me. Can't say if the difference is due to your injectors in one bank/O2 sensors. Exhaust leaks will have to be physically inspected and checked. Same with BOV, might have to take it apart and check it, WGDC at 60% stage 1, should be lower but could be due to a small boost leak.

The HPFP drops are not normal especially on ZF auto trans, not sure why it drops so much at every shift and picks up straight away.

Your timing corrections are minor and probably due to the 91oct fuel which is pretty poor.

[Saif2018]

Originally Posted by Renzke

Hello community,

Could somebody have a look on my log please?
In my opinion the car is running fine under WOT. GPS 100-200km/h (62mph-124mph) in ~8,7s. I have other problems (my learning bits are not fully set for lambda and injector in INPA, Readiness is fine and set for all except catalysist due to MHD. No failure codes, no nothing, only slight uneveness @ idle.

Car - E90 N54 FBO, 75kmiles, IJE0S - MSD81, MT: Intercooler + chargepipe + catless dp's + inlets + stage 2 lpfp + FTP PCV valve + 335is Clutch + Mr.5 Intake + K&N filter in stock air filter box + NGK spark plugs (one step colder)
SW: MHD Stage2+ 102oct v9.0.

FYI for WGDC and slight overboost: Inlets installed but I'm not on a custom tune yet. (Next topic on my list ;-))

Q.: LTFT behaviour and LTFT '0' during WOT. Ist this normal?

WOT 3rd gear, short pause then 4th gear:
https://datazap.me/u/renzke/log-1634...20-22-23-24-29

Log looks fine to me. LTFT is supposed to be between +10/-10

Walnut blast done? May help with your idle.

[Renzke]

Originally Posted by Saif2018

Log looks fine to me. LTFT is supposed to be between +10/-10

Walnut blast done? May help with your idle.

Thanks a lot for having a look. Always good to get another look on such things.
Walnut blast is done 20k ago. All lambdas are new and exhaust system and intake manifold is checked for leaks. Compression is checked as well. Vanos valves are new and checked via INPA. I'm running out of ideas. Wouldn't bother me because besides this the car is running absolutely perfect. Anyway I don't like that the learning bits are not set and as a consequence lambda is not as steady as it should be when idling.

Lambda not that steady during idling:
https://datazap.me/u/renzke/idle-1la...ata=2-15-16-22

Idling - Better (after restart) - few minutes later:
https://datazap.me/u/renzke/idle2lam...ata=2-15-16-22

[Saif2018]

Originally Posted by Renzke

Thanks a lot for having a look. Always good to get another look on such things.
Walnut blast is done 20k ago. All lambdas are new and exhaust system and intake manifold is checked for leaks. Compression is checked as well. Vanos valves are new and checked via INPA. I'm running out of ideas. Wouldn't bother me because besides this the car is running absolutely perfect. Anyway I don't like that the learning bits are not set and as a consequence lambda is not as steady as it should be when idling.

Lambda not that steady during idling:
https://datazap.me/u/renzke/idle-1la...ata=2-15-16-22

Idling - Better (after restart) - few minutes later:
https://datazap.me/u/renzke/idle2lam...ata=2-15-16-22

Have you tried resetting Lambda adaptations in MHD?

I've set my Idle rpm to 750rpm using MHD and it seems to idle smoother than the stock 650rpm, try raising yours to 700 or 750rpm and see if its smoother.

[Renzke]

Originally Posted by Saif2018

Have you tried resetting Lambda adaptations in MHD?

I've set my Idle rpm to 750rpm using MHD and it seems to idle smoother than the stock 650rpm, try raising yours to 700 or 750rpm and see if its smoother.

Yes I did. I did it as well via Inpa (2nd byte in adaptions delete menue which says delete all adaptions). I was able to create all adaptions like vanos, throttle, crankshaft, etc. with driving cycles except the most for injector / lambda. Injectors are all exchanged with index 12 during the last year. One by one, deleted adaptions, then observed via Inpa. Coded correctly . Anyway...no change in idling behaviour / adaptions. Last Injector change was 1200 miles ago. Already thinking it's maybe a SW bug for my DME because MHD updated to the newest released SW when flashed the first time (No newer SW according to SP Daten for my ECU is existing. For other MSD81 variants higher SW release numbers are available).
Rising the idle... Yeah why not giving it a try. Thanks.

[studio54]

Originally Posted by Renzke

Thanks a lot for having a look. Always good to get another look on such things.
Walnut blast is done 20k ago. All lambdas are new and exhaust system and intake manifold is checked for leaks. Compression is checked as well. Vanos valves are new and checked via INPA. I'm running out of ideas. Wouldn't bother me because besides this the car is running absolutely perfect. Anyway I don't like that the learning bits are not set and as a consequence lambda is not as steady as it should be when idling.

Lambda not that steady during idling:
https://datazap.me/u/renzke/idle-1la...ata=2-15-16-22

Idling - Better (after restart) - few minutes later:
https://datazap.me/u/renzke/idle2lam...ata=2-15-16-22

Hello Renzke,

Read that :

https://www.e90post.com/forums/showp...2&postcount=57

from thread : https://www.e90post.com/forums/showt...1751580&page=3

Read from post #57

It appears that the not steady idle afr is normal (some catalyst routine that never end) with MHD (for catless people). I caught the same idle on my logs.

[Renzke]

Originally Posted by studio54

Hello Renzke,

Read that :

https://www.e90post.com/forums/showp...2&postcount=57

from thread : https://www.e90post.com/forums/showt...1751580&page=3

Read from post #57

It appears that the not steady idle afr is normal (some catalyst routine that never end) with MHD (for catless people). I caught the same idle on my logs.

Oh wow. This information is gold!!! Thank you very much. It seems that's exactly my problem + the informafion I observed that some learning bits are not set (for Inpa msd80/81 loader 1.01 the corresponding menue isn't existing at all and can be observed only indirect by checking "Adaption Gemisch" and "Messwerte Injektoren", Inpa Loader 2.023 has the menue by the way). And you can check all of that with Deep OBD.
Anyway this catalytic routine seems to start quite often for MSD 81. I deinstalled mhd completely once and installed a self made dp fix. Besides some uncommon other corrections due to the dp fix the learning bits were not set in this scenario as well. BUT: The dp fix was just a try and it's not a real downpipe replacement. It makes sense that the "missing learning bits" are not set due to other "things" which come with the dp fix. Anyway my butt analyser said the idle was sometimes in the better state that time. Catalyst converter readiness was completed as well. I will go with a custom tune quite soon. Now I know I have an additional task for my tuner . Furthermore I will share my experience in the other thread. Thanks a lot!!

[Saif2018]

Originally Posted by Keystonezzz

https://datazap.me/u/keystonezzzz/lo...og=0&data=4-19

Just wanting to put my worries to rest. Is this log normal for stage 1?
Intake, Exhaust and that's all

This isn't a good log, you short shifted between gears.

Do a 3rd gear log as below...

DSC fully off (Hold DTC button down for a few seconds until it turns off fully)

Make sure Autologging is ticked in MHD,

If your manual trans bring the car upto 2500rpm in 3rd gear, same for ZF auto or DCT in M mode, Go WOT and keep the throttle pinned until just over 6k rpm then shift into 4th and let off after a few secs.

Then upload the log onto Datazap.me and post the link here.

[Quick335XI]

Could someone have a look at this log? I'm curious why SFTF are better around 5k than way up around 6800, doesn't seem to make sense...

https://datazap.me/u/terryeaton/log-...og=0&data=3-21

[Saif2018]

Originally Posted by Quick335XI

Could someone have a look at this log? I'm curious why SFTF are better around 5k than way up around 6800, doesn't seem to make sense...

https://datazap.me/u/terryeaton/log-...og=0&data=3-21

Your AFR's aren't shooting straight upto 234, the moment you go off throttle as well, I'm no expert but based on your STFT's and AFR's, it's probably injector related.

Not sure what you mean by STFT are better post 5k, your pretty much all the way with positive corrections, it does reduce a little at the top end though.