JB4 Logging, stacking and Map 6 Discussion

[daconchslop]

Getting a weird spike/dip in RPM, and at times overboost spikes, after closing throttle. EPC(p0234 but no limp mode)will happen on occasions where ecu psi spikes as high as 24 after releasing the pedal.
I’ve been working with George but wanted to see if anyone had any thoughts on the matter.
Log below.
https://datazap.me/u/lkmk7/log-1548797310?log=0&data=1-2-3-4-5-6-9-11-13-14-19-25-26-27-28
https://youtu.be/V68MV66xums

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[Diggs24]

Getting a weird spike/dip in RPM, and at times overboost spikes, after closing throttle. EPC(p0234 but no limp mode)will happen on occasions where ecu psi spikes as high as 24 after releasing the pedal.
I’ve been working with George but wanted to see if anyone had any thoughts on the matter.
Log below.
https://datazap.me/u/lkmk7/log-1548797310?log=0&data=1-2-3-4-5-6-9-11-13-14-19-25-26-27-28
https://youtu.be/V68MV66xums

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OEM DV?

Why is rpm and afr so choppy? Even in your vid it doesn't accelerate smoothly. You should be able to drop the hammer and go. This was my JB4 quick pull:

IMG_2017 by Diggs24, on Flickr

 

[RecycledDonuts]

You say this is your DD map? Is this on straight 93, or running an e mixture? Now that I'm FBO (IC/DP/Clutch ), I think it's time to up my settings a little.

I'm thinking of using yours with a minus 1-1.5 from 5k and up. Or do you recommend waiting until it's hot again and logging with different settings first?

It was a test on my setup with e30

 

[crashracer]

I didnt look at your log, but if you're running the latest JB4 firmware, map 4 is not pass through anymore, it's map 0. Map 4 is valet mode.

Yup. I’m on the latest firmware. That explains it! Thanks!


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[daconchslop]

OEM DV?

Why is rpm and afr so choppy? Even in your vid it doesn't accelerate smoothly. You should be able to drop the hammer and go.

Yes it’s the OEM DV. Here’s a log from a full pull 3-4th
https://datazap.me/u/lkmk7/log-1548852133?log=0&data=1-2-3-4-5-6-9-11-14-18-25-26-27-28&zoom=0-117

My AFR has always looked very choppy. The road was a little wet in that video so there may be some wheel spin associated.


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[daconchslop]

This was my JB4 quick pull:

IMG_2017 by Diggs24, on Flickr

Diggs: That only appeared as an image for me. Edit- Used the link to Flickr and saw the vid.
Here’s another quick pull, these arent WOT for long just to show the spike don’t want to break yet. https://youtu.be/GhAwyLXfMyw



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[ALE 5six1]

So went to the track On Friday and it was my First time using jb4 from a dead stop and ran into issues in 2nd gear, only with map 1 and only 2nd gear. Did 3rd gear pulls without issue.
Fuel = 93 with 2.5 gallons of E85
Mods= drop in filter and catted downpipe.
JB4 settings = Boost safety 25 for map 1, 26 for map 6. 1st gear max boost 18. 2nd gear max boost 20

Here are 3 runs with the issue in 2nd gear on map 1
https://datazap.me/u/ale-5six1/3-runs-map-1-issue-2nd-gear?log=0&data=1-4

So I made a custom map 6 tune and was able to run it without issue.
Here are 2 runs with map 6
https://datazap.me/u/ale-5six1/map-6-no-2nd-gear-issues?log=0&data=1-4

I have a few theories but wanted to see what others with more experience thought.
Thanks for your time

 

[Diggs24]

error 404: no track times listed

 

[Diggs24]

Diggs: That only appeared as an image for me. Edit- Used the link to Flickr and saw the vid.
Here’s another quick pull, these arent WOT for long just to show the spike don’t want to break yet. https://youtu.be/GhAwyLXfMyw



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I feel like it’s a dv issue. cant open quick enough. might want to take it apart and lube it

 

[Diggs24]

ecupsi 29... thats nuts

 

[ALE 5six1]

ecupsi 29... thats nuts

Yeah do you think it’s spiking to 29 like that after it hits my 25 psi max, which then causes a false high reading of 29?

Or could it be my 2nd gear max boost setting messing with it?

 

[ALE 5six1]

error 404: no track times listed

I’ll have them when I go back, probably this Friday. After map 1 crashed and burned on me twice, I just ran map 0 and my best time was 14.0

 

[Diggs24]

Yeah do you think it’s spiking to 29 like that after it hits my 25 psi max, which then causes a false high reading of 29?

Or could it be my 2nd gear max boost setting messing with it?

Definitely report it to George.

 

[ALE 5six1]

Definitely report it to George.

Will do, thanks Diggs for all the help you provide me and others.

 

[mw1978]

Guys I don’t know how to help my friend with his jb4 setings. We tried few different setings with auto shift boost redux and he always has weird AFR and IGN drop after shift from 2nd to 3rd.
Car is S3 8v
Redux 70
https://datazap.me/u/nicram1978/redux-70?log=0&data=1-4-11-18&zoom=10-87
Redux 40
https://datazap.me/u/nicram1978/40?log=0&data=1-4-11-18
Redux 30
https://datazap.me/u/nicram1978/redux-30?log=0&data=1-4-11-18&zoom=0-144
Redux 0
https://datazap.me/u/nicram1978/redux-0?log=0&data=1-4-11-18&zoom=2-146