[BM3Rrrr]

Originally Posted by Russ535i

If one of you whiz kids don't mind looking at my log I'd much appreciate it. Car is a 2010 535i, AT. Thanks


https://datazap.me/u/russ535i/log-15...-22&zoom=0-161

Did you disable traction control when you logged?
At 4500 rpm your accel pedal position drops which looks like you let off.

Your STFT are showing a Rich mixture also

[Chris1337]

Originally Posted by Russ535i

If one of you whiz kids don't mind looking at my log I'd much appreciate it. Car is a 2010 535i, AT. Thanks


https://datazap.me/u/russ535i/log-15...#38;zoom=0-161

looks like some of your cylinders are pulling timing? Any mods? And how many miles? Could be a component in ignition system wearing down

[nolabele92]

Originally Posted by dreyo27

Nice tune. I would recommend asking Wedge, but i would say your turbos are tired.
It takes them 900 RPMS to build full boost, and they are way below target, even in the midrange.
On top of that your HPFP is tired too, and has dangerously low presssure I probably would not be as brave as you.

Question ..where do u see hpfp ..do you go off rail pressure?..and what parameters do you are good for hpfp

[Russ335i]

Originally Posted by Chris1337

looks like some of your cylinders are pulling timing? Any mods? And how many miles? Could be a component in ignition system wearing down

Only DCI. Has new plugs, new Delphi coils or it has 5 new coils, 6th one will be here today. DTC was disabled. Car has 67k

[BM3Rrrr]

Originally Posted by nolabele92

Question ..where do u see hpfp ..do you go off rail pressure?..and what parameters do you are good for hpfp

Yes, rail pressure is HPFP pressure.
<1400PSI sustained is indicative of a "tired" HPFP under high load.

[Chris1337]

https://datazap.me/u/chris1337/rough-start

this is a log of a rough start

n55 FBO PI e85

can anyone tell what's causing the car to start so horribly?

[kihlgrendude]

My first post on this forum.. Hello guys

2008 n54 135i steptronic (xHP stage 3) with MHD Stage 2+ 93RON
3" Downpipes
Wagner stepped intercooler copy
VRSF dual cone intake
Alu chargepipe with stock diverter valve
I believe the car has stock fuel pump

https://datazap.me/u/kihlgrendude/3r...og=0&data=3-21
https://datazap.me/u/kihlgrendude/3r...og=0&data=3-21
https://datazap.me/u/kihlgrendude/3r...0&data=4-19-21

Do you think it looks good?

[BM3Rrrr]

Originally Posted by kihlgrendude

My first post on this forum.. Hello guys

2008 n54 135i steptronic (xHP stage 3) with MHD Stage 2+ 93RON
3" Downpipes
Wagner stepped intercooler copy
VRSF dual cone intake
Alu chargepipe with stock diverter valve
I believe the car has stock fuel pump

https://datazap.me/u/kihlgrendude/3r...og=0&data=3-21
https://datazap.me/u/kihlgrendude/3r...og=0&data=3-21
https://datazap.me/u/kihlgrendude/3r...0&data=4-19-21

Do you think it looks good?

Logs look good

[kihlgrendude]

Originally Posted by BM3Rrrr

Logs look good

Why is the boost(and boost target) this low for me? Only like 16psi max and then 11psi on high rpm?

[Sgop335]

Originally Posted by kihlgrendude

Why is the boost(and boost target) this low for me? Only like 16psi max and then 11psi on high rpm?

Because it is freezing there.

[FairlyReliable]

Any insights on my logs would be appreciated fellas.

Car is running approximately E60 blend on a custom tuned BEF meth map.

The car dyno'd at 475 Awhp with this map however I feel I am not getting all the power out of the car. Boost seems to be getting up to the 20's and appears to taper down fairly quickly. Do I have a boost leak? Or any noticeable issues with my logs.

Car is FBO

Any advice appreciated.

https://datazap.me/u/fairlyreliable/...2-4-5-13-16-30

Thanks

[DTOAST3]

Originally Posted by BM3Rrrr

Your right it should not be leaking like that, just replace both of them it and re-log

I replaced the leaking boost solenoid and vacuum lines. It looks like my stft are still high I made a new log but its not that great due to traffic but i have a full 2k-7k pull in second gear.

https://datazap.me/u/bigj/101019-3rd...og=0&data=3-24

I ordered a inpa cable and plan on resetting adaptations using INPA. Can can someone tell me which adaptations need to be reset? "Lambada Sensors", "learned variants", or "all adaptations"? Thanks!

[cantaloupe]

Any insight on this log would be much appreciated. Car pulls strong but at WOT it feels like it misses slightly once every few seconds and you can feel the slightest buck when it does. Feels like it could be fuel related but not sure.

Catless DPs, DCI, FMIC, I12 injectors, Stage2 bucketed LPFP, Running custom e50 tune from Wedge.

Started log in 4th gear and let off super early, just wanted to capture the weird misfire.

https://datazap.me/u/caydenphipps/e5....00&tmax=18.15

[studio54]

Hello,

I am curious.

Does anyone know if there is a difference (or a logic) in fuel mapping or something during let's say first 5-10 minutes after starting ? (not necessarly from a cold start)

For example, not for from morning cold start, the engine stopped for 90 minutes or something, not warmed, but not cold :

I logged first small WOT pull (up to 3000-3500 rpms), it feels more responsive, boost is over target by 1 psi, load actual also is a bit over target and car feels very responsive, which is very nice.

Five minutes later, i logged same WOT pull (even stronger one), boost is under target by ~1 psi, and load actual is under request by ~5-10 points, and consequently car feels a bit less responsive to the pedal

Sames IAT in both case.

Since i have the car, it always worked this way.

Why the load actual is at first on target, even a bit over target, and then under target five minutes later?

Is it related to an intake valves cleaning needed, related to fuel, fuel pump or it is normal ?

First pull : https://datazap.me/u/studio54/log-15...=0&data=3-5-21

Five minutes later : https://datazap.me/u/studio54/log-15...=0&data=3-5-21

(some timings but i think it's crappy gas)

Thanks for any help to understand how does this work !

[Oliv]

Hey all
After 2 years of trying to fix 30ff & lag by various means, I had to bite the bullet and replace the turbos by 2 brand new Mitsubishi stock snails...

https://datazap.me/u/olivier/freshtu...-30&zoom=0-120

Car has never felt so good, but I'm a little bit worried with the throttle closures (I know it's more/less normal with 8.0 but still)
Thoughts ?

[Sgop335]

Originally Posted by studio54

Hello,

I am curious.

Does anyone know if there is a difference (or a logic) in fuel mapping or something during let's say first 5-10 minutes after starting ? (not necessarly from a cold start)

For example, not for from morning cold start, the engine stopped for 90 minutes or something, not warmed, but not cold :

I logged first small WOT pull (up to 3000-3500 rpms), it feels more responsive, boost is over target by 1 psi, load actual also is a bit over target and car feels very responsive, which is very nice.

Five minutes later, i logged same WOT pull (even stronger one), boost is under target by ~1 psi, and load actual is under request by ~5-10 points, and consequently car feels a bit less responsive to the pedal

Sames IAT in both case.

Since i have the car, it always worked this way.

Why the load actual is at first on target, even a bit over target, and then under target five minutes later?

Is it related to an intake valves cleaning needed, related to fuel, fuel pump or it is normal ?

First pull : https://datazap.me/u/studio54/log-15...=0&data=3-5-21

Five minutes later : https://datazap.me/u/studio54/log-15...=0&data=3-5-21

(some timings but i think it's crappy gas)

Thanks for any help to understand how does this work !

Good observations. My cars have so much acceleration at the first pull it breaks tires loose like crazy. Dont want to give away details but using this strategy to tune them.

[studio54]

Originally Posted by Sgop335

Good observations. My cars have so much acceleration at the first pull it breaks tires loose like crazy. Dont want to give away details but using this strategy to tune them.

Ok thank you.

If i understand, you noticed this behaviour too on your carS and you are auto tuning them, so i assume it's normal with an OTS map ?

I tried to find something with reading a RFP map in Tunerpro, but i am too rookie and there are tons of tables

[Sgop335]

Originally Posted by studio54

Ok thank you.

If i understand, you noticed this behaviour too on your carS and you are auto tuning them, so i assume it's normal with an OTS map ?

I tried to find something with reading a RFP map in Tunerpro, but i am too rookie and there are tons of tables

yes I noticed them in my cars and been curious about this behavior as you describe. It takes time to understand details...

[omg n54]

https://datazap.me/u/omgn54/3rd?log=0&data=2-3-20
I have two concerns with my log here, first i believe i have a leaky injector from cold start misfires and odd cold start behavior and second, is my boost supposed to be tapering down as i near redline like my log shows?
I have on stage 2+ with bimmerlife coil kit on 91 oct. with catless dps, dci, and intercooler.

[NoGuru]

Originally Posted by omg n54

https://datazap.me/u/omgn54/3rd?log=0&data=2-3-20
I have two concerns with my log here, first i believe i have a leaky injector from cold start misfires and odd cold start behavior and second, is my boost supposed to be tapering down as i near redline like my log shows?
I have on stage 2+ with bimmerlife coil kit on 91 oct. with catless dps, dci, and intercooler.

Log looks pretty good but you are getting a few timing corrections.
If I activate my coils by checking the box before flashing I usually don't get any corrections, only when the coils are not enabled do I see some.

Do you have the box checked in MHD?
Boost looks good btw.

[omg n54]

Originally Posted by NoGuru

Log looks pretty good but you are getting a few timing corrections.
If I activate my coils by checking the box before flashing I usually don't get any corrections, only when the coils are not enabled do I see some.

Do you have the box checked in MHD?
Boost looks good btw.

Yes it is checked off in MHD
I am using Costco 91 which is a top tier fuel
I'm not sure if the leaky injector would be causing this or the Bosch plugs, should I go to a better NGK plug?

[NoGuru]

Originally Posted by omg n54

Yes it is checked off in MHD
I am using Costco 91 which is a top tier fuel
I'm not sure if the leaky injector would be causing this or the Bosch plugs, should I go to a better NGK plug?

Are you on stock plugs? Go one step colder.
https://www.ecstuning.com/b-ngk-part...six/n54plugkt/