[Payam @ BMS]

Originally Posted by Serstylz2

Thanks, I'll pick that up since you all saved me some cash on the maf housing

[RandyNester]

Heat Exchanger or Intercooler???

[ddnspider]

Originally Posted by RandyNester

Heat Exchanger or Intercooler???

What? Stock intercoolers are fine, it's the HE that's terrible.

[RandyNester]

Originally Posted by ddnspider

What? Stock intercoolers are fine, it's the HE that's terrible.

So when ordering, is it the heat exchanger or the ELITE heat exchanger? They boy have the exact same description, but one says elite and is $399 and the other is $299.

[Serstylz2]

299 one is made overseas, 399 one is made in MURICA. Both are heat exchangers. The Q50 intercooler resides in the engine bay. It's not a front mount intercooler like you've seen in the past

[nspireaviation]

just downloaded the latest firmware for the vr30 jb4 Bluetooth, I cant select engine type in the settings, it doesn't exist, is this the norm now?

Also is there a link to a more technical side of each value I can select and change in the app?

[UNEEK]

Hello guys and i am exited to join this team, I have recently purchased a 2019 Q50 Silver Sport, Right now this car is at 3,500 miles and its been giving me problems, At 3,000 miles my Fuel Injector was broken this was after the installation of my JB4 tune with BMS Cable , i don't know if this happened because of the tune or because it was the manufacturer defect ( The Fuel Injector was replaced) After I have taken the car to the highway full throttling it malfunction icon popped out and the check engine light is on also, I have updated the jb4 with the latest update but maybe i downloaded the wrong update, if you guys could send me the up to date update for this car that would be perfect, also I was just wondering on the data log on how to properly record, do you click start logging before you start moving or while you are moving on 3rd gear before 2,500, because i have tried data logging and after i click stop and view nothing shows. I have been running the car on map 5 with 93 octane but recently went to map 3 because of all the issues ive been having.Thanks again for reading this and hopefully I could fix the issue, other than that it is night and date from stock to this tune.

[Terry @ BMS]

Not possible for the JB4 to damage a fuel injector so likely unrelated, maybe something to do with running more power exacerbating a factory defect sooner than it would have otherwise shown up.

[ddnspider]

You have to be wide open throttle for the logging to be active if you don't press the button to start logging.

[vietnameeh]

I did a quick log in Map 2

It might be too short, how does it look?

JB4 + Fuel Wires + 91 octane

Thanks!

[ddnspider]

Looks good to me!

[vietnameeh]

Thanks!

[Terry @ BMS]

Originally Posted by ddnspider

Looks good to me!

+1.

[nspireaviation]

Terry, can you confirm the current map profiles and target boosts for each? A couple people on the forum mentioned different numbers:

I logged Map 1, Map2, and Map3.

Map1 target was 4psi
Map2 target was 5psi
Map3 target was 3psi (yes 3psi)

Can you also confirm if there is still an engine selection under settings? I do not have it in my current jb4 app with the latest vr30v7 firmware.

Additionally is there a source for a more technical explanation of each parameter in the user adjustment settings?

[vietnameeh]

Originally Posted by ddnspider

Looks good to me!

Originally Posted by Terry @ BMS

+1.

Thanks guys

can I ask to check once more. I logged in the same spot (went home for lunch lol)

this time the weather today is "hot" for CA 95*

this morning log was at 65*

[ddnspider]

Originally Posted by vietnameeh

Thanks guys

can I ask to check once more. I logged in the same spot (went home for lunch lol)

this time the weather today is "hot" for CA 95*

this morning log was at 65*

Still looks fine. A little odd your pedal didn't look like it was all the way down, but close.

[vietnameeh]

Originally Posted by ddnspider

Still looks fine. A little odd your pedal didn't look like it was all the way down, but close.

Thanks!

based on that would I be able to try Map 3 ... or am I pushing it lol

[ddnspider]

Originally Posted by vietnameeh

Thanks!

based on that would I be able to try Map 3 ... or am I pushing it lol

I would try moving to map 6 if it were me. Havent see anything that is cause for concern.

[vietnameeh]

Originally Posted by ddnspider

I would try moving to map 6 if it were me. Havent see anything that is cause for concern.

Awesome thanks

[ddnspider]

Originally Posted by vietnameeh

Awesome thanks

shoot for one of the tapered boost curves, maxing at like 6 psi, and post a log. Try to get a higher gear log as that's when knock/timing drops will be more prominent.

[EvolvingApe]

Would anyone be able to help me find what the default boost targets for Map 1 and Map 2 on the JB4 (latest firmware) are? I'm playing around with Map 6 at the moment and would love a baseline to work off of. Thanks in advance!

[Rs400newbie]

Originally Posted by EvolvingApe

Would anyone be able to help me find what the default boost targets for Map 1 and Map 2 on the JB4 (latest firmware) are? I'm playing around with Map 6 at the moment and would love a baseline to work off of. Thanks in advance!

3
3.5
4
4
4
4
4
4
3.5
3
2.5
2


4
4
4
4.5
5
5
5
5
5
4.5
4
3.5

[EvolvingApe]

Originally Posted by Rs400newbie

3
3.5
4
4
4
4
4
4
3.5
3
2.5
2


4
4
4
4.5
5
5
5
5
5
4.5
4
3.5

You're awesome. Much appreciated!

[nspireaviation]

Can anyone look at my log, i did a quick 3rd-4th pull this morning when it was cool 78*. Running map6 with 4+ in the powerband

pic: jb4 map6 3rd-4th - Album on Imgur

csv attached as well

[05g356mtt]

Hello,

New to the Q50 and Tuning with JB4. Can someone please take a look at this log.

2019 RS AWD on 93 Costco (10% Ethanol)
Helm Holtz Axle Back
Fuel Wires
JB4 Map 6 +4 Tapered (credit Lordie @ VR30 Tech Talk FB Group)
(1500-7000)
2.5
3.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
3.0
2.0


BMS HE going on thursday, looking to push it to +5 after HE install. Any input would be appreciated.