[h69ae]

Hi
Please I need help if you can help me

I have a custom tune and I’m getting over boost and I’m not being able to know what’s the problem

I have a meth on my car

Bmw 340i 2016

And here’s the log if you can help me
https://bootmod3.net/log?id=67c4c244380c274dd69d0a4c

Note: I change the turbo actuator as well

[IMS-340C]

- You are not getting over boost you just need to look at RAM Boost Target.

- Your tuner needs to reduce timing a little above IAT 40C.

Originally Posted by h69ae

Hi
Please I need help if you can help me

I have a custom tune and I’m getting over boost and I’m not being able to know what’s the problem

I have a meth on my car

Bmw 340i 2016

And here’s the log if you can help me
https://bootmod3.net/log?id=67c4c244380c274dd69d0a4c

Note: I change the turbo actuator as well

[IMS-340C]

E25 Stock turbo 520 HP:

https://datazap.me/u/ims/e28-2?log=0...43-44-45-46-51

Actually on stock turbo E25 is very close to E40 so for those of us paying too much for Ethanol E40 is not worth.

[vcx]

Allow me to bump my question..

Originally Posted by vcx

Dear B58 fellows,

My turn to share a log, hoping for some advices.

My car suffers from Valtronic issues (range faulty, impossible to reset), and this materialise with the throttle keeping open for a 1/4 of a sec. when I lift the accelerator pedal, or when the engine start. Car runs fine though, no limp mode or so.

The valvetronic engine was changed, the reset procedure (with the pedal trick) done with no success, and the mechanic can't do it either with ISTA software. Next step will be removing the valve cover to check for the excentric shaft.

Anyway, I did a log today, and I saw that the rail pressure actual PSI is much higher than the rail pressure target, at least at the beginning of the pull.

Is it normal and if not, is it a separate issue, or related to the valvetronic problem ? (and why would it be related ?)

Many thanks to the community for you help!

https://logs.mgflasher.com/log/40b43...==&wide=1&vt=0


Here is another pull from today, in 3rd gear:

https://logs.mgflasher.com/log/40b43...19&wide=1&vt=0


Strangely, there is 0 timing corrections on both logs, which is great, but is it even possible ?

[WrxToBeamerGuy]

Originally Posted by IMS-340C

- You are not getting over boost you just need to look at RAM Boost Target.

- Your tuner needs to reduce timing a little above IAT 40C.

In 5th gear it is overboosting the other overboosts are during gear shift which can be kind of normal but look at his 5th gear it overboosts once during the gear shift from 4th to 5th (kind of normal) and then again during 5th and thats not too normal. The reason I say this is because look how much throttle correction there is.

Finally you're absolutely right IMS-340C the timing needs to be adjusted there are too many corrections. If he has meth injected at the charge pipe and not at each individual cylinder it doesn't surprise me too much I'm not a fan of that method at all.

[IMS-340C]

Yeah it's fine that fuel pressure exceeds target momentarily.

Yeah it's possible not to have corrections at all though it's rare.

Originally Posted by vcx

Allow me to bump my question..

[Robmann23]

Just took a quick log on the way home for PTF to have a look at regarding an issue with my boost reading absolute all the time no matter what setting I have it on.

The last time I took a long I had octane booster in the tank and the log was very clean, next to no timing corrections and I think max timing advance if about 12° at roughly 6500 from memory. This time I added about 6 litres of E85 into a full tank of 98ron. I'm getting some corrections with this.

Do you think I should try another couple of litres of E85 and see if that cleans the corrections up?

Log: https://datazap.me/u/robmann23/m240i...25?log=0&data=

[IMS-340C]

No, timing corrections look great.

Originally Posted by Robmann23

Just took a quick log on the way home for PTF to have a look at regarding an issue with my boost reading absolute all the time no matter what setting I have it on.

The last time I took a long I had octane booster in the tank and the log was very clean, next to no timing corrections and I think max timing advance if about 12° at roughly 6500 from memory. This time I added about 6 litres of E85 into a full tank of 98ron. I'm getting some corrections with this.

Do you think I should try another couple of litres of E85 and see if that cleans the corrections up?

Log: https://datazap.me/u/robmann23/m240i...25?log=0&data=

[Robmann23]

Oh ok nice.

Is max timing advance if 10° about right for a stage 2+ map? I seem to remember reading somewhere that the bm3 stage 2+ map ran about 15° or somewhere around there.

I noticed also that boost is sitting pretty close to target and doesn't really seem to over boost but I got a throttle closure at 4200rpm. What else could be causing this do you reckon?

[IMS-340C]

With high boost non E maps you will get 8-12 deg. timing, with E maps you can get up to 20 deg. timing.

Since you were in 3rd gear most likely the throttle closure you got is a result of traction control kicking in due to wheel spin from power or a bump on the road.

btw you have to quote me so I get notified when you reply

Originally Posted by Robmann23

Oh ok nice.

Is max timing advance if 10° about right for a stage 2+ map? I seem to remember reading somewhere that the bm3 stage 2+ map ran about 15° or somewhere around there.

I noticed also that boost is sitting pretty close to target and doesn't really seem to over boost but I got a throttle closure at 4200rpm. What else could be causing this do you reckon?

[L10n]

Hey everyone,
I know I have a 140i but there is no such thread in the 1addicts forum and the engine is the same.
Yesterday I changed chargepipe and turbo inlet and the car does not run well since.

Plugged in MHD and the monitoring shows negative values for Boost and Boost Manifold.
Values are about right but multiplied by -1.
Do you have any idea what this could be?

I deleted error codes so I cannot post them since they do not reappear when not driving (dont wanna do that because maybe something could break).
It showed something like Boost pressure unreasonable.

Thank you for your help

[IMS-340C]

Negative boost normal on idle and cruising, but try to post a log and error codes.

Originally Posted by L10n

Hey everyone,
I know I have a 140i but there is no such thread in the 1addicts forum and the engine is the same.
Yesterday I changed chargepipe and turbo inlet and the car does not run well since.

Plugged in MHD and the monitoring shows negative values for Boost and Boost Manifold.
Values are about right but multiplied by -1.
Do you have any idea what this could be?

I deleted error codes so I cannot post them since they do not reappear when not driving (dont wanna do that because maybe something could break).
It showed something like Boost pressure unreasonable.

Thank you for your help

[tvlbott]

17 440i GC 105k miles

Gas: 2.3g e85 | 12.7g 93oct so around 15%e (assuming e85 is not 50-70%)

Tune: BM3 Stage 2+ 93oct

Mods:
B58TU HPFP
VR Air Intake
CTS Catless DP
CTS Turbo Inlet
Ross Racing v2 PCV Delete w/OCC
Ross Racing EVAP Delete
Crankcase vent to OCC (yes I have two occ and 3 filter vents to VTA lol)

Tire tread very low (but I only lost a little traction on pull, idk if this affects logs)

Pull was done in sport+

Log: 5th gear pull 2k to 6.5k

My thoughts:
STFT start high at 12% at WOT but tapper to 0% through pull. I assume my engine has not caught up to the e85 I have added to correct timing corrections from bad 93oct fuel.

Cylinder 1 timing corrections for 10ish milliseconds at start of WOT pull. Not crazy correction but it’s the only cylinder that had it which concerns me. I will be replacing this spark plug due to fouling black. Thinking this could cause the corrections at start maybe. This fouling was caused by my fuel breather valve being broken. Every cold start would be around 25 or so misfires in cylinder 1. Drove like this a few times for a week. I evap deleted resolved this now it’s just 1 misfire for some reason. Injectors were replaced 20k miles ago. I really doubt it’s a bad injector leaking.

Disclaimer: I am not still new at understanding all this log reading and have done researched and read up on each sensor and what I’m looking for. I would say the log looks fairly decent but would like others with more experience to give an opinion. The car has never better than it has now after all the work I have done to it. If I’m missing anything let me know.

[BPCata]

Hi guys. So on a random night I noticed my car takes too much time (imo) to reach 200 km/h. So, naturally last night I borrowed a Dragy from a friend of mine and sadly I was right. Not only that, but even the 0-100 is slower than what it should be.
The car in question is a F36 440i xdrive with the usual mods: VRSF downpipe, NGK sparkplugs, MHD stg2, xHp stg2, MPPSK. Just for reference the dragy times that I got. 0-100 kmh over 4s, 100-200 kmh 10s +. Outside temp: 10 C
Compared my results to the ones on here and people with same mods do sub 4’s 0-100 and 100-200 8-9s.
Car runs fine, no issues, did all the maintenance required recently. Could you guys please read my log and see if something is not running right? Maybe not enough air or fuel or boost?
Here is the log: https://datazap.me/u/bpcata/0-200?log=0&data=3-23

[IMS-340C]

Looks good, you just need to change units to PSI as most of us is used to it.

Originally Posted by tvlbott

17 440i GC 105k miles

Gas: 2.3g e85 | 12.7g 93oct so around 15%e (assuming e85 is not 50-70%)

Tune: BM3 Stage 2+ 93oct

Mods:
B58TU HPFP
VR Air Intake
CTS Catless DP
CTS Turbo Inlet
Ross Racing v2 PCV Delete w/OCC
Ross Racing EVAP Delete
Crankcase vent to OCC (yes I have two occ and 3 filter vents to VTA lol)

Tire tread very low (but I only lost a little traction on pull, idk if this affects logs)

Pull was done in sport+

Log: 5th gear pull 2k to 6.5k

My thoughts:
STFT start high at 12% at WOT but tapper to 0% through pull. I assume my engine has not caught up to the e85 I have added to correct timing corrections from bad 93oct fuel.

Cylinder 1 timing corrections for 10ish milliseconds at start of WOT pull. Not crazy correction but it’s the only cylinder that had it which concerns me. I will be replacing this spark plug due to fouling black. Thinking this could cause the corrections at start maybe. This fouling was caused by my fuel breather valve being broken. Every cold start would be around 25 or so misfires in cylinder 1. Drove like this a few times for a week. I evap deleted resolved this now it’s just 1 misfire for some reason. Injectors were replaced 20k miles ago. I really doubt it’s a bad injector leaking.

Disclaimer: I am not still new at understanding all this log reading and have done researched and read up on each sensor and what I’m looking for. I would say the log looks fairly decent but would like others with more experience to give an opinion. The car has never better than it has now after all the work I have done to it. If I’m missing anything let me know.

[IMS-340C]

Not looking good, too much timing corrections.

Either switch to Stage 1 91-95 or enable map switch and move the slider to 90%, 85%, 80% and see which map reduce corrections.

Originally Posted by BPCata

Hi guys. So on a random night I noticed my car takes too much time (imo) to reach 200 km/h. So, naturally last night I borrowed a Dragy from a friend of mine and sadly I was right. Not only that, but even the 0-100 is slower than what it should be.
The car in question is a F36 440i xdrive with the usual mods: VRSF downpipe, NGK sparkplugs, MHD stg2, xHp stg2, MPPSK. Just for reference the dragy times that I got. 0-100 kmh over 4s, 100-200 kmh 10s +. Outside temp: 10 C
Compared my results to the ones on here and people with same mods do sub 4’s 0-100 and 100-200 8-9s.
Car runs fine, no issues, did all the maintenance required recently. Could you guys please read my log and see if something is not running right? Maybe not enough air or fuel or boost?
Here is the log: https://datazap.me/u/bpcata/0-200?log=0&data=3-23

[Lisandro_Legend]

I was wondering if someone could review my logs. Thanks in advance.

19’ X7 40i MHD Stage 1 E40

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

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

[IMS-340C]

Looks good but you need to add log parameters: timing corrections, timing delta for knock adaptation and LTFT.

Originally Posted by Lisandro_Legend

I was wondering if someone could review my logs. Thanks in advance.

19’ X7 40i MHD Stage 1 E40

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

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

[BPCata]

Originally Posted by IMS-340C

Not looking good, too much timing corrections.

Either switch to Stage 1 91-95 or enable map switch and move the slider to 90%, 85%, 80% and see which map reduce corrections.

Hi again. Thanks for your help. Did another 2 logs but with the same tune: Stage 2 95ron but this time used 99ron gas. From what I see on both logs there are 0 corrections. Car is running way better and smoother both under WOT and normal driving. Feels faster but from my attempts to time my 0-100 and 100-200 still underperforms compared to other cars that posted their dragy times with the same setup.
Do you see anything that needs improvement or anything unusual?
Attached logs: https://datazap.me/u/bpcata/99ron-stg2?log=0&data=3-23

[IMS-340C]

Yeah logs good.

What's your 100-200 and others ?

Originally Posted by BPCata

Hi again. Thanks for your help. Did another 2 logs but with the same tune: Stage 2 95ron but this time used 99ron gas. From what I see on both logs there are 0 corrections. Car is running way better and smoother both under WOT and normal driving. Feels faster but from my attempts to time my 0-100 and 100-200 still underperforms compared to other cars that posted their dragy times with the same setup.
Do you see anything that needs improvement or anything unusual?
Attached logs: https://datazap.me/u/bpcata/99ron-stg2?log=0&data=3-23

[BPCata]

Originally Posted by IMS-340C

Yeah logs good.

What's your 100-200 and others ?

Well this time I did not have a Dragy but using the phone stopwatch 0-100 was not under 4s and the 100-200 was around 10.7s. So compared to the first logs not a huge improvement.