SUPRA ULTIMATE B58 JB4 GUIDE AND LOG REVIEW (V1)

[Timmy_Jones]

All it does is turn map1-3 into absolute mode, not sure it does anything otherwise

Here is a re-run in map6 without that BEF (bit 6) selected. First run car feels great…second run it falls on its face. Same road. Same day. Minutes apart. Log at bottom of page. https://www.jb4tech.com/forum/model...23-b58-supra-map6-hesitation-at-full-throttle

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[swrdply400mrelay]

So there's a new firmware upgrade and a fuel sensor connector. Does anyone know if the fuel sensor connector comes with the JB4 or if that's separate? I couldn't find it on their website.

 

[ColonelAdama]

So there's a new firmware upgrade and a fuel sensor connector. Does anyone know if the fuel sensor connector comes with the JB4 or if that's separate? I couldn't find it on their website.

It is an add-on to the harness and actually requires a new JB4 board too.

Yes it works, I recommend P158 firmware Version 26 with it. I have one and a few customer cars now with it.

 

[downshift00]

It is an add-on to the harness and actually requires a new JB4 board too.

Yes it works, I recommend P158 firmware Version 26 with it. I have one and a few customer cars now with it.

Do you recommend upgrading to this new JB4 board on the ATs as well?

 

[ColonelAdama]

If you want to run e30-e40, yes

 

[Eastwood]

It is an add-on to the harness and actually requires a new JB4 board too.

Yes it works, I recommend P158 firmware Version 26 with it. I have one and a few customer cars now with it.

Should I update to the P158 firmware Version 26? Or is this only for the new JB4 Board?

 

[ColonelAdama]

Should I update to the P158 firmware Version 26? Or is this only for the new JB4 Board?

anyone can update to it, just be aware that Map 4 and 5 change to higher boost. Haven't tested that yet

 

[Viper]

will the new version be easier to tune with a manual transmission?

 

[razorlab]

So there's a new firmware upgrade and a fuel sensor connector. Does anyone know if the fuel sensor connector comes with the JB4 or if that's separate? I couldn't find it on their website.

This guy needs a nice punch in the face, preferably while he has those sunglasses on.

 

[FLtrackdays]

anyone can update to it, just be aware that Map 4 and 5 change to higher boost. Haven't tested that yet

Going to the track this weekend. Been wanting to do this for a while after talking to you last year about this. When not running in my timed series, I can drive in some HPDE sessions. I‘m using 93 octane & have a catless dp, nothing crazy. With a passenger, what do you recommend they could do to help me get some good pulls you can use to review? It’s been a long time since I’ve done this.

Do I leave the JB4 off (Map 0) and ask the passenger (wife) hit the log button coming out of a low speed hairpin, ~40 mph to 100? Or put it on Map 2, 3, 4, or 6 and wait for it to cut out (go into limp mode) after doing a few, runs, attempts? In the HPDE groups I can put my fist up, limp back to the pits, allowing others to easily pass.

This guy needs a nice punch in the face, preferably while he has those sunglasses on.

Is it because he has a punchable face or because of something else?

I get the punchable face desire.

Agree with Bryan! Dude’s on public street with cars around, people?, WFT…. Just don’t be a douche

 

[Eastwood]

This guy needs a nice punch in the face, preferably while he has those sunglasses on.

Is it because he has a punchable face or because of something else?

I get the punchable face desire.

 

[ColonelAdama]

With a passenger, what do you recommend they could do to help me get some good pulls you can use to review? It’s been a long time since I’ve done this.

Probably best to just turn off Log grouping and go through the pulls after the session. It auto-logs at full throttle if app is connected to JB4.

 

[razorlab]

Just log a whole session and parse after.

 

[i3igpete]

log the entire session, it doesn't take up that much storage on your phone and the app is fine with zooming in and out on it

 

[FLtrackdays]

Appreciate it! Retain Log Grouping Settings is not turned on.

Also there is a newer firmware, BMW B58 GEN 3 SENT. I currently have BMW B58/B48/B38 Gen1/Gen2. Should I download & install the latest one before logging? Or would that loose my custom tune map 6

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