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JB4 Logging, stacking and Map 6 Discussion

J

joneze93tsi

Passed Driver's Ed
Location
MIDWEST
Well, I think I'm just going to stick to MAP2 for now.

On whatever days I initially logged the MAP6 suggestions, It was running great.
As summer has moved in, and it's 85-90 most days the car doesn't seem to like it..or map3 very much.

Get hesitations in the 4-5k range where boost is highest, and rarely if ever ,seem to encounter them on simple map2.


Need a downpipe and IC stat!


EDIT: Maybe i'll just start dropping map6 numbers a psi at a time...

:0
 
bearusmc11

bearusmc11

New member
Can anyone help analyze my log and why it's not looking too healthy? I usually run Map 6 (logs look great) when I have access to some E85 but didn't have any at the time. I use Map1 for 91 and Map6 for blend.
I've been running with the JB4 for a over a year and this is by far not the healthiest looking log.

Map1
91
73 ambient temp
IC
DP
Intake
Newish spark plugs

https://datazap.me/u/gtiusmc11/log-1531889520?log=0&data=1-3-4-6-11-18-25-26-27-28

Thank you.


Sent from my iPhone using Tapatalk
 
Diggs24

Diggs24

Autocross Champion
Location
de plains! de plains!
Car(s)
2015 GTI
mw1978

mw1978

Ready to race!
Location
Europe
Guys I need help/advice. My friend FL S3 has problem with EGT temps, rich AFR and low IGN. Does anyone know why this happened?
On gear 2 and 3 map 4 AFR looks good but on gear 4 AFR rise after 5500 to 11:0
Car got only intake and jb4. Ambient temp 20C

Datalogs on map 4
2nd gear
https://datazap.me/u/nicram1978/łukasz-map-4-gear-2?log=0&data=1-4
3td gear
https://datazap.me/u/nicram1978/łukasz-mapa-4-bieg-3?log=0&data=1-4
4th
https://datazap.me/u/nicram1978/łukasz-mapa-4-bieg-4?log=0&data=1-4-18
 
J

joneze93tsi

Passed Driver's Ed
Location
MIDWEST
Map adaption time?

I have a friend who had used JB4's on his BMW's quite a bit and he told me to remember that when switching maps that the car will need a bit of adaption time and to do several pulls and varied driving to let it settle before thinking something may be wrong.

Is this lore?
Any grains of truth?
 
Diggs24

Diggs24

Autocross Champion
Location
de plains! de plains!
Car(s)
2015 GTI
mw1978 said:
Guys I need help/advice. My friend FL S3 has problem with EGT temps, rich AFR and low IGN. Does anyone know why this happened?
On gear 2 and 3 map 4 AFR looks good but on gear 4 AFR rise after 5500 to 11:0
Car got only intake and jb4. Ambient temp 20C

Datalogs on map 4
2nd gear
https://datazap.me/u/nicram1978/łukasz-map-4-gear-2?log=0&data=1-4
3td gear
https://datazap.me/u/nicram1978/łukasz-mapa-4-bieg-3?log=0&data=1-4
4th
https://datazap.me/u/nicram1978/łukasz-mapa-4-bieg-4?log=0&data=1-4-18
Click to expand...

It's dumping fuel to cool the cylinders.
 
J

joneze93tsi

Passed Driver's Ed
Location
MIDWEST
Diggs24 said:
It's true.
Click to expand...

I thought so..

Funny there has been virtually no discussion of it here, but it's all over the n54 forums ect.

Back to map6 for a while to test this theory and see if it improves. I've been swapping maps left and right and stomping on it expecting results in 1 min.
 
J

joneze93tsi

Passed Driver's Ed
Location
MIDWEST
jibbajoe said:
It's mentioned in the install instructions on the BMS website.
Click to expand...

Yes,

" A few wot runs".

Reading elsewhere indicates it's important between map changes, with any e85 variances ect.
 
shortyb

shortyb

Autocross Newbie
Location
Upstate SC
Car(s)
Felon Taxi,Dad Wagon
Here is first log after IE downpipe install.

https://datazap.me/u/shortybdub/log-1532567071?log=0&data=1-4

Mods: JB4, DP, Majesty, intake stuff (drop-in, TIP, TMD, Silicon hose) 93 with E30ish

Map 6 additive:

1500-2.0
2000-3.0
2500-3.5
3000-4.0
3500-4.5
4000-5.5
4500-6.0
5000-6.0
5500-6.0
6000-5.5
6500-5.0
7000-4.5

FOL-50
Safety-26
Ambient-86 and humid as hell
 
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