[Saif2018]

Originally Posted by iqraceworks

Are you supposed to be resetting the throttle adaptations every time you flash a new map? Just wondering..because I've never done that.

It's not a requirement but there is no harm in it. I did it because I found my throttle was a bit lagging, after reset it was more responsive.

[MfknBimmerBoy]

https://datazap.me/u/mfknbimmerboy/m...20&mark=89-473

Been running a JB4 G4 in the car for about 6 months since I got it. Car has 66k miles on it, DCI, Catless DP, CP Tial BoV, stock inlets, turbo and vacuum side catch can, PE exhaust, 1 step colder plugs gapped .022", delphi coils (coils and plugs installed within 5k miles).

Let me know what you think!

I'm assuming the LPFP needs to be upgraded. Bucketed or Bucketless Stage 2?

[BM3Rrrr]

Originally Posted by MfknBimmerBoy

https://datazap.me/u/mfknbimmerboy/m...20&mark=89-473

Been running a JB4 G4 in the car for about 6 months since I got it. Car has 66k miles on it, DCI, Catless DP, CP Tial BoV, stock inlets, turbo and vacuum side catch can, PE exhaust, 1 step colder plugs gapped .022", delphi coils (coils and plugs installed within 5k miles).

Let me know what you think!

I'm assuming the LPFP needs to be upgraded. Bucketed or Bucketless Stage 2?

That log tells nothing, try logging a WOT pull

[aestheticc]

https://datazap.me/u/aestheticc/no-b...=0&data=3-4-21

can't reach target boost for some reason

Specs:
Borg warner s257sxe single turbo
mac solenoid
jb4 running on map 1 for single turbo
stock lpfp
stock spark plugs

[TiAgAu]

Originally Posted by BM3Rrrr

That log tells nothing, try logging a WOT pull

Logs fine. It's just at the beginning you can enlarge the area of the log by selecting highlighting the area. separate thread here. The fuelling doesn't look good.

[Saif2018]

Originally Posted by aestheticc

https://datazap.me/u/aestheticc/no-b...=0&data=3-4-21

can't reach target boost for some reason

Specs:
Borg warner s257sxe single turbo
mac solenoid
jb4 running on map 1 for single turbo
stock lpfp
stock spark plugs

Looks like you probably have a pretty big boost leak.

Its only targeting about 13psi at peak?

Not seen a single turbo setup with stock plugs, stock lpfp

Don't know much about single turbo setups to be honest,

[Saif2018]

Originally Posted by RoughKnight

https://datazap.me/u/roughknight/fir...-9-10-20-28-29

WGDC stays maxed out until 3k ish, wondering whats going on.

WGDC should max out or be near it, when you go WOT to build boost quickly, then it should start dropping from about 3k

[BM3Rrrr]

Originally Posted by GovernUrMental

Logs fine. It's just at the beginning you can enlarge the area of the log by selecting highlighting the area. separate thread here. The fuelling doesn't look good.

[Lexxan1987]

https://datazap.me/u/lexxan1987/log-1597773042

[Lexxan1987]

Running mhd stage 2+
Stock turbo with inlet n dci.
Upgrade intercooler with methanol injection.
Catless downpipe

[Soden82]

https://datazap.me/u/msoden82/cold-s...&data=3-22

Can someone confirm that I'm looking for a vacuum leak?

STFT are crazy and my idle is very rough and jumpy.

Replaced coils, plugs, injectors, walnut blast.

[BM3Rrrr]

Originally Posted by Soden82

https://datazap.me/u/msoden82/cold-s...og=0&data=3-22

Can someone confirm that I'm looking for a vacuum leak?

STFT are crazy and my idle is very rough and jumpy.

Replaced coils, plugs, injectors, walnut blast.

With an idle log you need to increase the RPM in stages
Start car and wait till in closed loop
Increase RPM to 1500, hold for 15 seconds
Increase RPM to 2000, hold for 15 seconds
Increase RPM to 2500, hold for 15 seconds

Do that and report back

Your STFT's are jumping around like that at cold start because they are in open loop, once the o2's "warm up" they go into closed loop as you can see in your log

[Soden82]

Originally Posted by BM3Rrrr

With an idle log you need to increase the RPM in stages
Start car and wait till in closed loop
Increase RPM to 1500, hold for 15 seconds
Increase RPM to 2000, hold for 15 seconds
Increase RPM to 2500, hold for 15 seconds

Do that and report back

Your STFT's are jumping around like that at cold start because they are in open loop, once the o2's "warm up" they go into closed loop as you can see in your log

Okay will do. I only logged cold starts cause that's where my car is misfiring and shuddering/shaking

[BM3Rrrr]

Originally Posted by Soden82

Okay will do. I only logged cold starts cause that's where my car is misfiring and shuddering/shaking

Its unlikely (but possible) that a vacuum leak will cause misfires during cold start.
Doing the proposed log sequence can identify a vacuum leak though

[Soden82]

Originally Posted by BM3Rrrr

Its unlikely (but possible) that a vacuum leak will cause misfires during cold start.
Doing the proposed log sequence can identify a vacuum leak though

Ill give it a go. I appreciate the knowledge!

[BM3Rrrr]

Originally Posted by Soden82

Ill give it a go. I appreciate the knowledge!

[borskii]

Hello bois. Got the Dinan removed today and flashed back to bone stock. I'm ready to start my MHD journey.

I have been scouring this thread for the "perfect" log that I can bench mark. Looking for Stage 1+ and Stage 2+ on 93oct if anyone can share. Thanks.

[Saif2018]

Originally Posted by borskii

Hello bois. Got the Dinan removed today and flashed back to bone stock. I'm ready to start my MHD journey.

I have been scouring this thread for the "perfect" log that I can bench mark. Looking for Stage 1+ and Stage 2+ on 93oct if anyone can share. Thanks.

You don't need to worry about a perfect log,

Have a read through this for some understanding of analysing a Datalog...

Recommended to do Plugs and Coils if you haven't done so recently.

If you want to run Stage 1+ it's highly recommended that you have a uprated intercooler, Stage 2+ with downpipes.

[borskii]

Originally Posted by Saif2018

You don't need to worry about a perfect log,

Have a read through this for some understanding of analysing a Datalog...

Recommended to do Plugs and Coils if you haven't done so recently.

If you want to run Stage 1+ it's highly recommended that you have a uprated intercooler, Stage 2+ with downpipes.

Yeah, I did actually read the guide few times over before and sort of know what to look for. I'm no expert so definitely would be posting it here for a peer review once I collect some of my own with the MHD. Just wanted to see a sample good log I could study the trace.

Plug, coils, FMIC are done. Injectors good, walnut blasted 20K ago. No serious codes. I have DP's on hand, but want to run Stage 1+ first and collect some logs first so I can see some progressions. I posted my last log w/ Dinan S2 tune here and it was "okay" with few areas of concern. Hard to tell if I had some H/W issue or the Dinan tune was just poo poo. So starting fresh

[Saif2018]

Originally Posted by borskii

Yeah, I did actually read the guide few times over before and sort of know what to look for. I'm no expert so definitely would be posting it here for a peer review once I collect some of my own with the MHD. Just wanted to see a sample good log I could study the trace.

Plug, coils, FMIC are done. Injectors good, walnut blasted 20K ago. No serious codes. I have DP's on hand, but want to run Stage 1+ first and collect some logs first so I can see some progressions. I posted my last log w/ Dinan S2 tune here and it was "okay" with few areas of concern. Hard to tell if I had some H/W issue or the Dinan tune was just poo poo. So starting fresh

No worries mate. Thats good.

You can do a log at each stage and post on Datazap and here for analysis,

You can also email MHD directly for log analysis.

[SoCal_BMW_LA]

Can someone please take a look? I think my HPFP is crashing can you please confirm thanks.


https://*********************/graphs...crashing.2655/

[_N54]

Originally Posted by SoCal_BMW_LA

Can someone please take a look? I think my HPFP is crashing can you please confirm thanks.


https://*********************/graphs...crashing.2655/

Use datazap for logs