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JB4 Logging, stacking and Map 6 Discussion

shovelhd

Autocross Champion
Location
Western MA
Map 2
panel filter (otherwise bone stock)
it's a q3 with the gti is20 motor (traded in my 2016 is38 GTI last month)


93 octane sheetz fuel
about 60f outside today
Run was 3rd gear, slight uphill grade

Thoughts and feelings on how much more I can push it? Does the boost look to be where map 2 is supposed to be?

https://datazap.me/u/nkresho/log-1639664781?log=0&data=1-4

Pulls smoothly and feels strong, but boy, is she a heffer compared to the GTI

preemptive thanks

Boost looks like Map 2. Trims have some room for more but your IAT's are more than 50 degrees over ambient. I wouldn't push it any harder until you get an intercooler.
 

ZuMBLe

Autocross Champion
Location
NY
Car(s)
Alltrack 6MT
Boost looks like Map 2. Trims have some room for more but your IAT's are more than 50 degrees over ambient. I wouldn't push it any harder until you get an intercooler.

A Q3! COOL!

Though his intercooler performance doesn't look good, his car is giving quite a bit of fuel after 5000 rpm. I say there may be some gains to be had after 5000 RPM. I'd say increase FOL and give it another 2 psi after 5000 RPM... for science.
 

nkresho

suck, squish, bang, blow
Location
Pittsburgh
Car(s)
2022 Q3
Lol. It's always for science...

I'll give that a try tomorrow.

Coming from maestro, so this is kinda new but a lot simpler.

I'll give it a try and see if I can grab some logs tomorrow if it's not raining.

I appreciate the help
 

danelefren

New member
Location
Alaska
Car(s)
2015 Audi A3 Quattro
Hi all. New member here. Not exactly a VW owner, but pretty much the same.

I have a 2015 A3 Quattro with the stock IS20 running an IE High Torque Stage 2 (93oct) ECU tune and IE DSG Tune. Car has all supporting mods for stage 2 to include bigger turbo inlet, aFe intake, turbo muffler delete, 3” catless downpipe, Milltek 3” non-resonated catback, intercoller, full intercooler piping, bov spacer, 1 step colder spark plugs gapped at 0.024”, RS3 ignition coils and ECS Tuning catch can.

I initially had a JB4 (bluetooth with iPhone app) switching between maps 2 and a custom 6 (weather dependant). Eventually decided to go for an IE Stage 2 tune and absolute love it. I decided to leave the JB4 hooked up and run it in map 0 for the gauges in lieu of byuing a P3 gauge. Car ran a best of 12.30 @ 109 (rear seats and spare removed, about 1/4 tank of gas, 18” lighter wheels on street tires at 30 psi) on unprepped track. Launch control wasn’t working properly either. Would go to the set 4000 rpms for a second then drop to just below 3000rpms.

Now I’ve been contemplating the idea of stacking the JB4 on top of the tune. Below is the only log I could get with the IE tune. I have a slight idea on how stacking works, but I need for one of the gurus to look at the log and see if it’s even worth it, or if I could add 1 psi or 2 to it, plus a good FOL number. I really appreciate the help.

https://datazap.me/u/danelefren/ie-high-torque-stage-2-93-oct-ie-dsg-tune?log=0&data=1-4
 
Last edited:

ChrisMk77

Autocross Champion
Location
Sweden
Car(s)
2018 GTI Performance
Hi all. New member here. Not exactly a VW owner, but pretty much the same.

I have a 2015 A3 Quattro with the stock IS20 running an IE High Torque Stage 2 (93oct) ECU tune and IE DSG Tune. Car has all supporting mods for stage 2 to include bigger turbo inlet, aFe intake, turbo muffler delete, 3” catless downpipe, Milltek 3” non-resonated catback, intercoller, full intercooler piping, bov spacer, 1 step colder spark plugs gapped at 0.024”, RS3 ignition coils and ECS Tuning catch can.

I initially had a JB4 (bluetooth with iPhone app) switching between maps 2 and a custom 6 (weather dependant). Eventually decided to go for an IE Stage 2 tune and absolute love it. I decided to leave the JB4 hooked up and run it in map 0 for the gauges in lieu of byuing a P3 gauge. Car ran a best of 12.30 @ 109 (rear seats and spare removed, about 1/4 tank of gas, 18” lighter wheels on street tires at 30 psi) on unprepped track. Launch control wasn’t working properly either. Would go to the set 4000 rpms for a second then drop to just below 3000rpms.

Now I’ve been contemplating the idea of stacking the JB4 on top of the tune. Below is the only log I could get with the IE tune. I have a slight idea on how stacking works, but I need for one of the gurus to look at the log and see if it’s even worth it, or if I could add 1 psi or 2 to it, plus a good FOL number. I really appreciate the help.

https://datazap.me/u/danelefren/ie-high-torque-stage-2-93-oct-ie-dsg-tune?log=0&data=1-4
God Jul! Never seen and IE log before but I think that it compensates for weather so it runs more boost in summer, you would need better fuel though since its already pulling some timing across the board.

If you have E85 available I would start by just logging with E20, there is plenty of room to stack boost and with that timing curve you should get good gains.

3-4 psi even 5 in the midrange could be added but take it slowly logging changes since fueling will be the limiter, start with fuel bias and FOL at 0 but with your target AFR and timing curve on the IE tune I would think you need to add to both later on.
 

danelefren

New member
Location
Alaska
Car(s)
2015 Audi A3 Quattro
God Jul! Never seen and IE log before but I think that it compensates for weather so it runs more boost in summer, you would need better fuel though since its already pulling some timing across the board.

If you have E85 available I would start by just logging with E20, there is plenty of room to stack boost and with that timing curve you should get good gains.

3-4 psi even 5 in the midrange could be added but take it slowly logging changes since fueling will be the limiter, start with fuel bias and FOL at 0 but with your target AFR and timing curve on the IE tune I would think you need to add to both later on.
Thank you for the insight. Unfortunately, I can’t get better fuel than that unless I get it shipped from lower 48 and it’s not worth the money. Our premium is 90 and I mix it with Boostane to get 93. I wish we had 93 at the pump. What I can do is to add Boostane to the mix to raise the octane a bit.

I did add between 3-5 psi from midrange to up top and it felt better. But due to weather changed it back to IE tune only and will keep it like that until summer. Won’t be another 4-5 months until break-up so I can test it more.

Again, thank you. I get a better understanding of stacked tunes. I’m an Evo guy so this is a bit different for me.
 

donJimenez

Passed Driver's Ed
Location
St Augustine, Florida
Car(s)
2017 GSW 1.8t
Map 6 chart.png

I made this Map 6 chart after reviewing hundreds of posts here and elsewhere. From twelve maps, I charted the minimum, average and maximum settings to make up these three maps. I'm starting with the Average Map (red line).
 

A3_8V_BLACK

Passed Driver's Ed
Location
Brazil
Car(s)
AUDI A3 8V
Hi, my car has stg2 + jb4 stacked......
I made some logs, but it seems to me that the turbo is not reaching the target!!!
DV valve is ok, there is no leakage in the system......
I'm thinking it's a turbo problem (IS38 IHI)

https://datazap.me/u/djdouglaslopes/log-1643244437?log=0&data=1-2-3-4

https://datazap.me/u/djdouglaslopes/log-1643244519?log=0&data=1-2-3-4

https://datazap.me/u/djdouglaslopes/log-1643244580?log=0&data=1-2-3-4

https://datazap.me/u/djdouglaslopes/log-1643244639?log=0&data=1-2-3-4
 

ZuMBLe

Autocross Champion
Location
NY
Car(s)
Alltrack 6MT
Hi, my car has stg2 + jb4 stacked......
I made some logs, but it seems to me that the turbo is not reaching the target!!!
DV valve is ok, there is no leakage in the system......
I'm thinking it's a turbo problem (IS38 IHI)

https://datazap.me/u/djdouglaslopes/log-1643244437?log=0&data=1-2-3-4

https://datazap.me/u/djdouglaslopes/log-1643244519?log=0&data=1-2-3-4

https://datazap.me/u/djdouglaslopes/log-1643244580?log=0&data=1-2-3-4

https://datazap.me/u/djdouglaslopes/log-1643244639?log=0&data=1-2-3-4
Did you try additive values instead of absolute? What is the base flash? I don't think you need FOL50 at all. Your AFRs are stupid rich for the amount of boost you're running. Stacked cars should run FOL 0.
 

donJimenez

Passed Driver's Ed
Location
St Augustine, Florida
Car(s)
2017 GSW 1.8t
Hey I’m new here and new to jb4 tuning. I have a bone stock gti mk7.5 dsg PP 2021. The only “mods” is a snow guard removal and Michelin ps4 summers. I got a second hand jb4 and I would like to use map 6. What settings would y’all recommend especially since I’m running 93 and my temperature at this time of the year is max 80 degrees.
If you're running okay on Map 3 or 4, then start pushing from there and see what happens.
 
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