[Berkiisz]

Guys can u check my log please , is it to much timing correction?

It is stage 2+ with oem spark plugs , i will replace it with 95770 gapped to 0,22 next week.

Edit (forgot the link hehe) : https://datazap.me/u/berkiisz/b%C3%A...-9-10-11-12-21

[335e92tx]

Originally Posted by Berkiisz

Guys can u check my log please , is it to much timing correction?

It is stage 2+ with oem spark plugs , i will replace it with 95770 gapped to 0,22 next week.

Edit (forgot the link hehe) : https://datazap.me/u/berkiisz/b%C3%A...-9-10-11-12-21

I dont like how they show up in the middle of the pull. They normally are more of an issue right after the shift. The one Heatrange colder should help.

Try get a little of the log event post shift into 4th.
Trims pulling fuel at a little higher than I would think for a ~11.8/11.9 AFR..

It looks like IATs are creeping up and retards are close behind.

what IC you got?

[335e92tx]

Originally Posted by p.asik

Gentlemen, I am fighting with rough idle (not tidy with occasional hiccups) and occasional bogs during coasting. I would very much appreciate opinion on my logs as I am a beginner.
Car is completely stock 335i (N54, 2009) with 90k miles. Replaced HPFP (20k miles), index12 injectors (60k miles), turbos (80k mikes) and very recently new spark plugs, coils, vacuum lines, PCV valve, valve cover gasket and post-cat O2 sensors. After the recent maintenance turbos got very loud under even slight acceleration which sounds like it blows off a lot of air (but having stock diverter valves). The idling problems are however since I got my car at around 70k miles.

Idle with lot of hiccups after startup (noticed that the torque value might correspond the hiccup pattern):
https://datazap.me/u/otakarkrus/idle...22&zoom=27-170

Rough idle with different values logged: https://datazap.me/u/otakarkrus/roug...?log=0&data=12

Coasting with constant gas: https://datazap.me/u/otakarkrus/coas...0&data=9-10-12

3rd gear pull (forgot to turn DSC off): https://datazap.me/u/otakarkrus/pull...?log=0&data=16
Another pull (different values logged, DSC off): https://datazap.me/u/otakarkrus/acce...?log=0&data=12

I also noticed, that the AFR oscillates between 14.5-15.5 and bank 1 seems to be right opposite to bank 2 values.

I am not sure what of these patterns are normal and if there is any anomaly
Thanks a lot!

things get really complicated quick at part throttle loads on an n54. First thing is o2s. How old are they? If you got more than 50K miles on an anything but OEM bin (and even that) your dealing with richer loads that will make the o2s life shorter. Start with FRONT o2s that have 5K miles or less and get some part throttle AFRs (right after start) and then some at the same loads for about 4 to 9 mins in. And we can maybe compare the two. It likely starts with VANOS changes on the intake side and a lot of things happen in that first 4 mins when it goes from closed loop (based on some type of historic reference - as best I understand) to real time closed .

And make sure you got coolant temp logged - I dont see it in the logs you posted.

[Berkiisz]

Originally Posted by 335e92tx

I dont like how they show up in the middle of the pull. They normally are more of an issue right after the shift. The one Heatrange colder should help.

Try get a little of the log event post shift into 4th.
Trims pulling fuel at a little higher than I would think for a ~11.8/11.9 AFR..

It looks like IATs are creeping up and retards are close behind.

what IC you got?

I thinks the iat's are because we did like 6 pulls before this one, i have a big tom IC so i think it shouldn't be a problem.

[studio54]

Hi,

I wanted to check with all of you if my log looks good or not.

Map : Stage 2+ 93oct (98ron) coolant mode set to sport

Car : N54 135i (2007) MT6 with 100.000kms (or 60k miles)
Mods : ER chargepipe, Forge DV (yellow springs), DCI, Wagner catless downpipes, Forge FMIC (using stock couplers)

Recent changes : plugs, coils, vacuum lines

Log 3rd gear to 4th, with DTC disabled (long press)
Ambient temp : 57°F (or 14.5°C)

https://datazap.me/u/studio54/log-15...7-8-9-10-11-23

The car feels good, but i am a lil' bit concerned with my initial spooling time.

Applied the pedal at 2687rpm, and reach target peak at 3348 rpm, is it a bit laggy or slow spooling (661rpm to reach 15.4psi) ?
It feels it take sometimes to feel the boost/power coming.

Should i replace my boost solenoids? or is it possible it's because of my FMIC ?
(volume bigger than stock and using stock couplers, maybe causing some lag)

[Meatos]

Originally Posted by studio54

Hi,

I wanted to check with all of you if my log looks good or not.

Map : Stage 2+ 93oct (98ron) coolant mode set to sport

Car : N54 135i (2007) MT6 with 100.000kms (or 60k miles)
Mods : ER chargepipe, Forge DV (yellow springs), DCI, Wagner catless downpipes, Forge FMIC (using stock couplers)

Recent changes : plugs, coils, vacuum lines

Log 3rd gear to 4th, with DTC disabled (long press)
Ambient temp : 57°F (or 14.5°C)

https://datazap.me/u/studio54/log-15...7-8-9-10-11-23

The car feels good, but i am a lil' bit concerned with my initial spooling time.

Applied the pedal at 2687rpm, and reach target peak at 3348 rpm, is it a bit laggy or slow spooling (661rpm to reach 15.4psi) ?
It feels it take sometimes to feel the boost/power coming.

Should i replace my boost solenoids? or is it possible it's because of my FMIC ?
(volume bigger than stock and using stock couplers, maybe causing some lag)

Your wgdc only get up to 90 so its a little bit open that could cause slow spool, possible boostleak also, have you checked all couplings?

Bigger IC and stock couplings isnt the problem

[studio54]

Originally Posted by Meatos

Your wgdc only get up to 90 so its a little bit open that could cause slow spool, possible boostleak also, have you checked all couplings?

Bigger IC and stock couplings isnt the problem

Okay thanks, wgdc should peak at 100% ?

As far as i remember in my logs, i never seen them over the 90% range

I checked all coupling, except FMIC ones, i need to lift the car to check it

[Sgop335]

Originally Posted by studio54

Okay thanks, wgdc should peak at 100% ?

As far as i remember in my logs, i never seen them over the 90% range

I checked all coupling, except FMIC ones, i need to lift the car to check it

Originally Posted by Meatos

Your wgdc only get up to 90 so its a little bit open that could cause slow spool, possible boostleak also, have you checked all couplings?

Bigger IC and stock couplings isnt the problem

No no, wgdc going to 90% is fine and is tune limited, not boost leak. It took about 500rpm to spool to boost target which is fine.

[studio54]

Originally Posted by Sgop335

No no, wgdc going to 90% is fine and is tune limited, not boost leak.

Yes, i was searching about this and just found in the MHD thread, MHD saying :

pull a log till at least 6000rpm. On 91, the load target (and thus boost) is a bit lower than on 93 and more. Plus with the denser winter air, 16.x target is normal on stg2+ 91 in winter. WGDC is always 90% while spooling.

So i guess it's normal.

What can i do to have a better spooling time ?? maybe new boost solenoids could help? i never replaced them

[Meatos]

Originally Posted by studio54

Okay thanks, wgdc should peak at 100% ?

As far as i remember in my logs, i never seen them over the 90% range

I checked all coupling, except FMIC ones, i need to lift the car to check it

Mine and others is at atlest 95 but that dont seem to be the problem, when did the slow spool occur? Always been that way? It holds boost all the way so looks fine when you have boost. Do you have the wg rattle delete option active in MHD? Stock exhaust after dp?

[studio54]

Originally Posted by Meatos

Mine and others is at atlest 95 but that dont seem to be the problem, when did the slow spool occur? Always been that way? It holds boost all the way so looks fine when you have boost. Do you have the wg rattle delete option active in MHD? Stock exhaust after dp?

No, i didn't activate the WG rattle fix options.

I bought the car at 90.000kms, and now 105.000kms and i believe i always felt this kind of lag if i WOT from the 2500rpm range (in 2nd or 3rd), and maybe a lil more since i installed the Forge FMIC.

Maybe a useful information is that the more my engine is warm, the more i could feel the lag. (and iat maybe, but never excess 140°F even in summer).

Example: in the 5-10 first minutes of driving, while warming, without WOTING of course, i don't feel (or less) the lag in the 2000-4000 range .

Yes, Wagner catless DP > stock midpipes with cats > BMW PE exhaust muffler

Before buying or try to test boost solenoid, i would to know if it can be useful or not with this

[Meatos]

Cold air= denser = easier to build boost
I still dont like the wgdc numbers, think they are to low vs boost and rpm. I have a log with same mods and the wgdc differs pretty much between them. Indicates that the wg arm is a bit open from the beginning and not adjusted properly.
This is my theory and hopefully you find another cause that is easier to fix.

[studio54]

Originally Posted by Meatos

Cold air= denser = easier to build boost
I still dont like the wgdc numbers, think they are to low vs boost and rpm. I have a log with same mods and the wgdc differs pretty much between them. Indicates that the wg arm is a bit open from the beginning and not adjusted properly.
This is my theory and hopefully you find another cause that is easier to fix.

Okay, is it the v7 log you posted on the MHD thread ?

There is a difference of 5% in the WGDC numbers, but spooling time/RPMs looks similar, some maybe this feeling i got is normal ??

[Meatos]

If it is 2 weeks ago then i have inlets on my car that lowers wgdc vs stock. My rpm are lower when i put my foot down, i think to low for the turbos to spool thats why.
Your problem aint that big of a deal just drive it and enjoy

[Oliv]

->Studio54
I'm at the same mileage and have the same behavior (at low revs boost might take 1000 RPMs to build - basically from 2000RPM to 3000), exacerbated by ambient heat (It might occasionally throw a 30FF when hot outside)

Been like that for 2 years/30 000kms, I did change the solenoids (it did help a lot with the gap Boost/target at middle/high revs - cheap fix anyway, try that) and an IC (too recent and still too cold outside to see if it helps, but IATs are really down on the 2-3 graphs i've been logging, so probably yes).

You have to accept that the arms/wastegates on the Turbos do wear (actuators might struggle to close them properly on Spool time, especially when it's hot/metal expands), and eventually when it becomes unbearable and you've tried everything else it's time to replace the Turbos.

As i'm cheap/was able to at least adjust the rear one (and the lag low down is not SOOOO annoying to me), I'm living with it right now it's a pity the wastegates design is so prone to failure because the turbines themselves are still very well OK (no oil consumption/noises etc)

I'll have to upload a log now that I'm on 1+...

[studio54]

Originally Posted by Oliv

->Studio54
I'm at the same mileage and have the same behavior (at low revs boost might take 1000 RPMs to build - basically from 2000RPM to 3000), exacerbated by ambient heat (It might occasionally throw a 30FF when hot outside)

Been like that for 2 years/30 000kms, I did change the solenoids (it did help a lot with the gap Boost/target at middle/high revs - cheap fix anyway, try that) and an IC (too recent and still too cold outside to see if it helps, but IATs are really down on the 2-3 graphs i've been logging, so probably yes).

You have to accept that the arms/wastegates on the Turbos do wear (actuators might struggle to close them properly on Spool time, especially when it's hot/metal expands), and eventually when it becomes unbearable and you've tried everything else it's time to replace the Turbos.

As i'm cheap/was able to at least adjust the rear one (and the lag low down is not SOOOO annoying to me), I'm living with it right now it's a pity the wastegates design is so prone to failure because the turbines themselves are still very well OK (no oil consumption/noises etc)

I'll have to upload a log now that I'm on 1+...

Thank for your answer, i could try to adjust the rear one too, but before doing this i want to be sure if i have a problem or if it's just normal for this config

In 3rd, i measured 661 rpm to reach target boost at 15.4psi (from 2687rpm to 3348 rpm), i will check others logs in the thread and see what's the average of spooling time to reach target for a stage 2 or 2+.

Also it's not clear for me for the WGDC numbers, i am peaking at ~90%, Meatos says it's not normal, and Sgop335 says it's normal..

Yes, post your log

[GEOS07335i]

Alright I've addressed quite a few maintenance issues in the last week. Can someone take a look and let me know what you think. https://datazap.me/u/geosbmw/3rd-5th...14-24-28-29-30

I do have about 1.7g of E mixed with 93. In my previous post I had a 2+ PSI boost leak it doesn't look nearly as bad now since I swapped out VCG, PCV Valve. Feedback really appreciated.

THANKS IN ADVANCE!!!

[asiflicious]

Hey guys I tried out E85 for the first time today. Car feels amazing but I want to make sure everything is looking good.
https://datazap.me/u/asiflicious/log...&data=3-22

[Meatos]

Originally Posted by GEOS07335i

Alright I've addressed quite a few maintenance issues in the last week. Can someone take a look and let me know what you think. https://datazap.me/u/geosbmw/3rd-5th...14-24-28-29-30

I do have about 1.7g of E mixed with 93. In my previous post I had a 2+ PSI boost leak it doesn't look nearly as bad now since I swapped out VCG, PCV Valve. Feedback really appreciated.

THANKS IN ADVANCE!!!

DONT do any more pulls above 5000rpm until you have fueled up more 93, you have to much e85 for the pumps to keep up, engine going lean on the top because rail pressure drops to 600psi when its not fed properly by the lpfp.

And yes the boost looks better so you have did something that helped

[Meatos]

Originally Posted by asiflicious

Hey guys I tried out E85 for the first time today. Car feels amazing but I want to make sure everything is looking good.
https://datazap.me/u/asiflicious/log...og=0&data=3-22

Looks fine, but i would not go higher than e30 before changing the lpfp, it struggles to keep up, and this was in 3rd gear maybe in 4th, 5th it cant keep up, i would log a higher gear to be safe.

[studio54]

I have a quick question concerning "WGDC bank" % numbers.

The value has to be understood as :
"DME is asking xx %"
or
"xx % is the actual physical position of the wastegate arm" (does it have a sensor ??)

[Ballistic]

It does not have a sensor. afaik it's a PWM percentage of the vacuum controllers. 100% is the maximum amount of vacuum pulses so maximum closure.