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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > MHD "take a look at my log" thread



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      06-21-2020, 08:15 PM   #3939
335rocket101
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Hello, if anyone could help that would be really helpful. I dont feel like the car is running right. It feels a lot slower than it should be. Im running the mhd stage 2+ e50 v9 map. Im trying to understand what everything means but I cant really figure out what is wrong.

https://datazap.me/u/theslonly335/lo...g=0&data=20-24

Thank you,

Mods:
Relocated inlets
primary and secondary cat delete
one step colder sparkplugs gapped at 0.022"
7 inch vrsf intercooler
walbro 450 lpfp
charge piep and bov
mhd stage 2+ e50 v9
e50 in the tank
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      06-21-2020, 10:29 PM   #3940
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Quote:
Originally Posted by 335rocket101 View Post
Hello, if anyone could help that would be really helpful. I dont feel like the car is running right. It feels a lot slower than it should be. Im running the mhd stage 2+ e50 v9 map. Im trying to understand what everything means but I cant really figure out what is wrong.

https://datazap.me/u/theslonly335/lo...g=0&data=20-24

Thank you,

Mods:
Relocated inlets
primary and secondary cat delete
one step colder sparkplugs gapped at 0.022"
7 inch vrsf intercooler
walbro 450 lpfp
charge piep and bov
mhd stage 2+ e50 v9
e50 in the tank
Your IAT's are climbing rapidly, and you have lots of timing corrections probably due to it.

When did you change plugs and coils?

Also more importantly check your intercooler connection points, I can't see any reason a 7 inch VRSF intercooler would perform so bad.
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      06-22-2020, 12:13 AM   #3941
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Quote:
Originally Posted by Saif2018 View Post
Your IAT's are climbing rapidly, and you have lots of timing corrections probably due to it.

When did you change plugs and coils?

Also more importantly check your intercooler connection points, I can't see any reason a 7 inch VRSF intercooler would perform so bad.
I replaced my spark plugs around 200 miles ago, so they should be good. I dont know when the last time my coils were done. What do you mean check the intercooler connections? Do you think something is inside the intercooler that is restricting air flow? I thought my IAT's were high because of my relocated inlets sucking up warm air.

Thank you
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      06-22-2020, 03:23 PM   #3942
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Quote:
Originally Posted by 335rocket101 View Post
I replaced my spark plugs around 200 miles ago, so they should be good. I dont know when the last time my coils were done. What do you mean check the intercooler connections? Do you think something is inside the intercooler that is restricting air flow? I thought my IAT's were high because of my relocated inlets sucking up warm air.

Thank you
Relocated inlets, sucking up warm air should not be causing a a 7 inch intercooler to heat soak like crazy from what I understand. Your IAT's are as bad as a stock intercooler. There is no way a 7 inch Intercooler should be performing that bad.

I mean IC couplers/piping, have them checked.

How old is the VRSF intercooler?

I would recommend you replace all coils with Eldor ones.

Your WGDC are hitting 80% that's too high, plus you should be hitting 18-19 psi on boost, your Datalog shows 14-15.

Run stage 1+ and see how it goes until your IAT/timing corrections issues and WGDC are resolved.
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      06-22-2020, 07:20 PM   #3943
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Quote:
Originally Posted by 335rocket101 View Post
I replaced my spark plugs around 200 miles ago, so they should be good. I dont know when the last time my coils were done. What do you mean check the intercooler connections? Do you think something is inside the intercooler that is restricting air flow? I thought my IAT's were high because of my relocated inlets sucking up warm air.

Thank you
I would hold off the replacing the coils for now and get your IAT's sorted first
You may have a boost leak on the hot side which can cause high WGDC's.
I would check there first and replace them all if you have done so already.
Boost leaks will cause you to need more WGDC to reach your target.
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      06-22-2020, 09:29 PM   #3944
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https://datazap.me/u/fmarsjr/3rd-gea...=0&data=3-4-13

2011 BMW 335i N55 Manual RWD
Miles: 161K

Mods:
VRSF Downpipe, Chargepipe, Inlet, and Outlet
ETS Intercooler
BMS Intake

I think I am running pretty damn good but I am still not hitting my target PSI. Think I could have a boost leak? A friend of mine said try getting a new boost solenoid.

EDIT: Also, my IAT's look a little high for a 7" ETS intercooler, right?

Any input would be helpful!
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      06-22-2020, 11:19 PM   #3945
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Quote:
Originally Posted by fmarsjr View Post
https://datazap.me/u/fmarsjr/3rd-gea...=0&data=3-4-13

2011 BMW 335i N55 Manual RWD
Miles: 161K

Mods:
VRSF Downpipe, Chargepipe, Inlet, and Outlet
ETS Intercooler
BMS Intake

I think I am running pretty damn good but I am still not hitting my target PSI. Think I could have a boost leak? A friend of mine said try getting a new boost solenoid.


EDIT: Also, my IAT's look a little high for a 7" ETS intercooler, right?

Any input would be helpful!
Any codes?
IAT's look fine
Boost is well under target, WGDC is almost max
Check boost solenoids or vacuum lines
Alot of timing corrections throughout the pull, map is either too aggressive or fuel octane inst good enough
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      06-22-2020, 11:31 PM   #3946
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Quote:
Originally Posted by BM3Rrrr View Post
Quote:
Originally Posted by fmarsjr View Post
https://datazap.me/u/fmarsjr/3rd-gear-pull?log=0&data=3-4-13

2011 BMW 335i N55 Manual RWD
Miles: 161K

Mods:
VRSF Downpipe, Chargepipe, Inlet, and Outlet
ETS Intercooler
BMS Intake

I think I am running pretty damn good but I am still not hitting my target PSI. Think I could have a boost leak? A friend of mine said try getting a new boost solenoid.


EDIT: Also, my IAT's look a little high for a 7" ETS intercooler, right?

Any input would be helpful!
Any codes?
IAT's look fine
Boost is well under target, WGDC is almost max
Check boost solenoids or vacuum lines
Alot of timing corrections throughout the pull, map is either too aggressive or fuel octane inst good enough
No codes

Could that mean that my turbo is just old, high mileage and my wastegate is failing?

What vacuum lines specifically?
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      06-22-2020, 11:50 PM   #3947
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Quote:
Originally Posted by fmarsjr View Post
No codes

Could that mean that my turbo is just old, high mileage and my wastegate is failing?

What vacuum lines specifically?
Possibly..

If you haven't ever replaced the vacuum lines i would just do all of them.
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      06-23-2020, 05:21 AM   #3948
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Quote:
Originally Posted by fmarsjr View Post
https://datazap.me/u/fmarsjr/3rd-gea...=0&data=3-4-13

2011 BMW 335i N55 Manual RWD
Miles: 161K

Mods:
VRSF Downpipe, Chargepipe, Inlet, and Outlet
ETS Intercooler
BMS Intake

I think I am running pretty damn good but I am still not hitting my target PSI. Think I could have a boost leak? A friend of mine said try getting a new boost solenoid.

EDIT: Also, my IAT's look a little high for a 7" ETS intercooler, right?

Any input would be helpful!
Could be turbos but before jumping to turbos...

Possibly boost leak, turbos are struggling to hit boost targets, wgdc also high and several timing corrections.

Have you replaced all vacumn lines, checked all intercooler and charge pipe connections, including vacuum cannister connection points ?

I would recommend running stage 1+ until your boost leak and timing correction issues are sorted out.

Solenoids next to be checked and replaced if needed.
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      06-23-2020, 05:22 AM   #3949
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Quote:
Originally Posted by fmarsjr View Post
No codes

Could that mean that my turbo is just old, high mileage and my wastegate is failing?

What vacuum lines specifically?
Replace all of them, vacuum lines aren't expensive.
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      06-23-2020, 09:25 AM   #3950
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Quote:
Originally Posted by Saif2018 View Post
Quote:
Originally Posted by fmarsjr View Post
https://datazap.me/u/fmarsjr/3rd-gear-pull?log=0&data=3-4-13

2011 BMW 335i N55 Manual RWD
Miles: 161K

Mods:
VRSF Downpipe, Chargepipe, Inlet, and Outlet
ETS Intercooler
BMS Intake

I think I am running pretty damn good but I am still not hitting my target PSI. Think I could have a boost leak? A friend of mine said try getting a new boost solenoid.

EDIT: Also, my IAT's look a little high for a 7" ETS intercooler, right?

Any input would be helpful!
Could be turbos but before jumping to turbos...

Possibly boost leak, turbos are struggling to hit boost targets, wgdc also high and several timing corrections.

Have you replaced all vacumn lines, checked all intercooler and charge pipe connections, including vacuum cannister connection points ?

I would recommend running stage 1+ until your boost leak and timing correction issues are sorted out.

Solenoids next to be checked and replaced if needed.
I will need to check the vacuum lines and I guess replace them.

All intercooler connections seem solid. The only think I can think of is the VRSF Inlet and Outlet. They are made out of metal and took some playing to get into the turbo. Hard to see down there so I'm not sure if one is slightly crooked or not.
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      06-24-2020, 09:00 PM   #3951
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2011 335i xdrive
auto- XDelete and XHP stage 3
88k miles
MHD stage 2+ E30
FBO
Stage 2 fuel it pump
New spark plugs ngk 97506 gapped .022”

Hi all,
Just wondering if some of you can take a look at some pulls I did (no warnings or limp mode) to make sure everything looks ok or if there are things I need to look out for. Also would like to know if I’m getting enough fuel with the e30 and possibly run more e85 in the future. Any help is greatly appreciated. Thanks

https://datazap.me/u/mengkmoua
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      06-24-2020, 11:45 PM   #3952
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Quote:
Originally Posted by m335ng View Post
2011 335i xdrive
auto- XDelete and XHP stage 3
88k miles
MHD stage 2+ E30
FBO
Stage 2 fuel it pump
New spark plugs ngk 97506 gapped .022”

Hi all,
Just wondering if some of you can take a look at some pulls I did (no warnings or limp mode) to make sure everything looks ok or if there are things I need to look out for. Also would like to know if I’m getting enough fuel with the e30 and possibly run more e85 in the future. Any help is greatly appreciated. Thanks

https://datazap.me/u/mengkmoua
You got some problems, you sure you dont have any codes?
You are overboosting and underboosting
WGDC is maxed out
Lambda AFR never goes to fuel cut off after you let off the throttle

You are logging alot of things that you dont need and leaving a few critical ones out
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      06-25-2020, 07:38 AM   #3953
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Quote:
Originally Posted by m335ng View Post
2011 335i xdrive
auto- XDelete and XHP stage 3
88k miles
MHD stage 2+ E30
FBO
Stage 2 fuel it pump
New spark plugs ngk 97506 gapped .022”

Hi all,
Just wondering if some of you can take a look at some pulls I did (no warnings or limp mode) to make sure everything looks ok or if there are things I need to look out for. Also would like to know if I’m getting enough fuel with the e30 and possibly run more e85 in the future. Any help is greatly appreciated. Thanks

https://datazap.me/u/mengkmoua
You should log "boost mean" to know the actual boost in the charge pipe. Anyway, as BM3Rrrr said, it seems you're heavily under and overboosting and that + the fact your WGDC is maxing out indicate your boost solenoid isn't working properly.
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      06-25-2020, 11:29 AM   #3954
m335ng
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Quote:
Originally Posted by BM3Rrrr View Post
You got some problems, you sure you dont have any codes?
You are overboosting and underboosting
WGDC is maxed out
Lambda AFR never goes to fuel cut off after you let off the throttle

You are logging alot of things that you dont need and leaving a few critical ones out
The car doesn’t throw any codes after pulls. I’ll look into replacing the boost solenoid and vacuum lines and see how it goes from there. Any recommendations on what other things I should be datalogging? Or should I just use default settings? I appreciate the input.
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      06-25-2020, 02:54 PM   #3955
palze
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Quote:
Originally Posted by m335ng View Post
The car doesn’t throw any codes after pulls. I’ll look into replacing the boost solenoid and vacuum lines and see how it goes from there. Any recommendations on what other things I should be datalogging? Or should I just use default settings? I appreciate the input.
You should log these:

amb pressure (relevant only in case you don't live at sea level)
accel ped. pos. %
boost
boost mean
boost target
cyl timing cor for all six cylinders
fuel low pressure sensor
gear
iat
lambda bank 1 afr
lambda bank 2 afr
load actual
load req.
ltft 1 %
ltft 2 %
rail pressure
rpm
stft 1 %
stft 2 %
throttle position
timing cyl. 1 crk
wgdc after pid %
wgdc %
wgdc base value %

Here's a good manual for interpreting MHD logs. It's not perfect but it gets you going: https://www.docdroid.net/IyQ24N5/int...d-datalogs-pdf

Last edited by palze; 06-25-2020 at 03:01 PM..
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      06-25-2020, 07:59 PM   #3956
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Quote:
Originally Posted by palze View Post
You should log these:

amb pressure (relevant only in case you don't live at sea level)
accel ped. pos. %
boost
boost mean
boost target
cyl timing cor for all six cylinders
fuel low pressure sensor
gear
iat
lambda bank 1 afr
lambda bank 2 afr
load actual
load req.
ltft 1 %
ltft 2 %
rail pressure
rpm
stft 1 %
stft 2 %
throttle position
timing cyl. 1 crk
wgdc after pid %
wgdc %
wgdc base value %

Here's a good manual for interpreting MHD logs. It's not perfect but it gets you going: https://www.docdroid.net/IyQ24N5/int...d-datalogs-pdf
Alright I’ll take a look at it and do couple more pulls after I get the solenoid installed. Thanks
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      06-28-2020, 10:36 PM   #3957
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MHD stage 2 tune, DPs, 5"FMIC, 93 octane
I can see that the LFPF is dipping a bit low, so should upgrade before running e85. HPFP still seems good though.
Otherwise it's the timing that looks strange. Should I mix in a gallon of e85 to confirm that I just don't have enough octane? What's the formula between knock events and timing retard? 3* per?
https://datazap.me/u/loudnslow/stage...6-8-9-10-11-20
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      06-29-2020, 04:16 PM   #3958
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Quote:
Originally Posted by loudnslow View Post
MHD stage 2 tune, DPs, 5"FMIC, 93 octane
I can see that the LFPF is dipping a bit low, so should upgrade before running e85. HPFP still seems good though.
Otherwise it's the timing that looks strange. Should I mix in a gallon of e85 to confirm that I just don't have enough octane? What's the formula between knock events and timing retard? 3* per?
https://datazap.me/u/loudnslow/stage...6-8-9-10-11-20
yes a little too many timing corrections and large ones too.
Your afrs are rich, yet many corrections pointing towards poor octane and/ or don't know what the deal w spark plugs.
You could mix ethanol to improve octane but as you mention lpfp is dipping low, may get worse w e85.
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      06-29-2020, 09:42 PM   #3959
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Quote:
Originally Posted by Sgop335 View Post
yes a little too many timing corrections and large ones too.
Your afrs are rich, yet many corrections pointing towards poor octane and/ or don't know what the deal w spark plugs.
You could mix ethanol to improve octane but as you mention lpfp is dipping low, may get worse w e85.
I suspect the plugs are stock 60K miles and on my list to swap. I guess it could be pre-ignition.
The trims seems to be well within range so I assumed high 11 is the target of this tune. Or could there be another reason?
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      06-30-2020, 12:31 PM   #3960
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Just want to know if this looks healthy, changed my cam ledges recently

https://datazap.me/u/sherazkn/20psi-...&data=1-3-4-18

Current Mods:
Stage 2 LPFP
Index 12's
FBO
Inlets
JB4 w/ MHD BEF
2 Step

Thanks
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