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VipinLJ VipinLJ is offline
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Default JB4 on G20 330i - 03-18-2020, 09:29 AM

Hey guys

I am running a JB4 on my G20 330i (B46) with no other mods. It is on map 2 since I use 93AKI fuel. Before the JB4, I had a JB+. I did a few runs on the exact same road using the same methods and I was shocked to find out that both the jb+ and jb4 made the car react exactly the same (I have speedometer recordings of both runs showing there is absolutely no difference between JB+ and JB4 map 2). I was expecting a slight difference (JB4 map 2 being faster). Any idea why that could be? I don't have any logs yet because it's been raining and slippery here but I will post logs soon.

2020 BMW 330i xDrive - JB+ vs JB4 Map 2 - YouTube

Also, I have the JB4 mobile connect app. It shows the maximum boost recorded as 27.3-28.1, which is surprising. Is that an error or is it normal? I got the maximum boost values by double tapping the boost gauge to show the max saved value.


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Last edited by VipinLJ; 03-30-2020 at 09:14 AM..
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VipinLJ VipinLJ is offline
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Default 03-18-2020, 05:17 PM

A few people I’ve spoken to say that level of boost is insane and possibly even dangerous for my car. Unfortunately I have no way of knowing how my car is behaving to it except that it sounds and drives fine.
Any insight will be appreciated.


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Default 03-18-2020, 06:15 PM

Quote:
Originally Posted by VipinLJ
A few people Iíve spoken to say that level of boost is insane and possibly even dangerous for my car. Unfortunately I have no way of knowing how my car is behaving to it except that it sounds and drives fine.
Any insight will be appreciated.
I would email technical support here is link.

https://burgertuning.com/pages/contact
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VipinLJ VipinLJ is offline
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Default 03-18-2020, 07:21 PM

Quote:
Originally Posted by Ke90
I would email technical support here is link.

https://burgertuning.com/pages/contact
Thank you very much! Let me reach out to them


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Terry @ BMS Terry @ BMS is offline
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Default 03-19-2020, 06:15 PM

There is no CSV here to offer any tuning help with.


Burger Motorsports
Home of the JB4 the worlds most popular turbocharged tuning system!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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VipinLJ VipinLJ is offline
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Default 03-20-2020, 04:16 PM

Finally managed to get a decent log of Map 2 on JB4:
1. Fuel - 93AKI
2. Mods - None except for JB4
3. Map - 2
4. Traction off
5. 3rd gear starting at below 2000rpms upto redline at WOT

Max boost in this was above 20psi.

I have logs of the run where I hit more than 25psi boost but those logs are too long and might piss you guys off I'll post screenshots of the graph where boost hits those values beneath too. Just in case. Same firmware. Same map. Same fuel and other conditions.

The log file is after all the image files. Right at the bottom of the attachments.
Attached Files
File Type: csv 20200320_173752_runs(1) logging map 2.csv (15.6 KB, 71 views)


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Last edited by VipinLJ; 03-30-2020 at 09:13 AM..
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VipinLJ VipinLJ is offline
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Default 03-21-2020, 10:58 AM

I have another log on the same map done today. The logging map doesn't show that high of a boost. But normal driving map shows very high boost values. I've also included a normal drive map.


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JBoe JBoe is offline
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Default 03-22-2020, 01:27 AM

Be careful not to mistake boost levels that are captured during shifts or throttle closures. They'll show high as there is a spike during those times. Remember, the car uses the throttle to control boost. There is no BOV or ByPass Valve. We can't trust the max/peak boost meter, IMO.

I believe the reading under boost 2 shows manifold pressure, which is a better comparison and can help you weed out the erroneous spikes. Just fyi...


AFE Drop-in Filter
BMS Meth Kit (100% M1)
Muffler Delete
CA 91 Piss Gas...
(8oz Boostane 95ish Oct)
E85 (2Gal/Fill)
BEF (Race_WMI)
JB4 (Map 7 - Add 45... 19-20psi)
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VipinLJ VipinLJ is offline
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Default 03-22-2020, 08:17 AM

Quote:
Originally Posted by JBoe
Be careful not to mistake boost levels that are captured during shifts or throttle closures. They'll show high as there is a spike during those times. Remember, the car uses the throttle to control boost. There is no BOV or ByPass Valve. We can't trust the max/peak boost meter, IMO.

I believe the reading under boost 2 shows manifold pressure, which is a better comparison and can help you weed out the erroneous spikes. Just fyi...
Thank you so much! I had no idea why my boost showed those spikes since Iím not very knowledgeable in this area. You explained it really well and Iím very grateful to you for that. I guess I can breath easier now knowing the reason for those spikes

Thank you very much once again.


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Default 03-22-2020, 09:46 PM

Quote:
Originally Posted by VipinLJ
Thank you so much! I had no idea why my boost showed those spikes since Iím not very knowledgeable in this area. You explained it really well and Iím very grateful to you for that. I guess I can breath easier now knowing the reason for those spikes

Thank you very much once again.
No worries... I haven't had a chance to open your logs on a PC (I don't have the app). When I do, I'll post up my thoughts.


AFE Drop-in Filter
BMS Meth Kit (100% M1)
Muffler Delete
CA 91 Piss Gas...
(8oz Boostane 95ish Oct)
E85 (2Gal/Fill)
BEF (Race_WMI)
JB4 (Map 7 - Add 45... 19-20psi)
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VipinLJ VipinLJ is offline
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Default 03-23-2020, 10:47 AM

Quote:
Originally Posted by JBoe
No worries... I haven't had a chance to open your logs on a PC (I don't have the app). When I do, I'll post up my thoughts.
I got new logs on the latest firmware (v15). Iím attaching those in this post. Thank you very much once again!
Attached Files
File Type: csv 20200323_115349log2v15map2.csv (16.2 KB, 61 views)
File Type: csv 20200323_115640log3v15map2.csv (10.3 KB, 60 views)
File Type: csv 20200323_112449log1v15map2.csv (18.6 KB, 56 views)


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VipinLJ VipinLJ is offline
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Default 03-29-2020, 05:54 PM

I'm posting logs on map 0 (stock map), map 2 and 3 below. In case someone wants to review and/or compare

G20 330i B46
JB4 v15, no other mods
93aki fuel only
Attached Files
File Type: csv 20200324_173455_runslogv15stockmap.csv (34.9 KB, 80 views)
File Type: csv 20200323_115349log2v15map2.csv (16.2 KB, 58 views)
File Type: csv 20200326_130512v15map3log.csv (13.5 KB, 80 views)


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Last edited by VipinLJ; 03-30-2020 at 09:18 AM..
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JBoe JBoe is offline
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Default 04-01-2020, 07:38 PM

Quote:
Originally Posted by VipinLJ
I'm posting logs on map 0 (stock map), map 2 and 3 below. In case someone wants to review and/or compare

G20 330i B46
JB4 v15, no other mods
93aki fuel only
Map 3 looks pretty good from what I can see. How does it feel? It's a big change over stock so it should feel like a night/day difference.


AFE Drop-in Filter
BMS Meth Kit (100% M1)
Muffler Delete
CA 91 Piss Gas...
(8oz Boostane 95ish Oct)
E85 (2Gal/Fill)
BEF (Race_WMI)
JB4 (Map 7 - Add 45... 19-20psi)
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VipinLJ VipinLJ is offline
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Default 04-01-2020, 07:56 PM

Quote:
Originally Posted by JBoe
Map 3 looks pretty good from what I can see. How does it feel? It's a big change over stock so it should feel like a night/day difference.
Oh yes. There’s a noticeable difference between stock and map 2/3, especially when one is doing rolling pulls. The JB4 definitely wakes the B46/48 up.

I’ve gone back to map 2 since the JB4 firmware settings mention map 2 for 93 octane and map 3 for 93+ octane. I’ll be putting in a gallon or two of E85 to raise the octane rating and then run map 3. And maybe get a log then to see if things are fine.

Thank you very much for taking a look at the logs. I appreciate your input.


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Default 04-02-2020, 07:06 AM

Quote:
Originally Posted by VipinLJ
Oh yes. Thereís a noticeable difference between stock and map 2/3, especially when one is doing rolling pulls. The JB4 definitely wakes the B46/48 up.

Iíve gone back to map 2 since the JB4 firmware settings mention map 2 for 93 octane and map 3 for 93+ octane. Iíll be putting in a gallon or two of E85 to raise the octane rating and then run map 3. And maybe get a log then to see if things are fine.

Thank you very much for taking a look at the logs. I appreciate your input.
Hi,

I have the identical car on 93 octane and drop in K&N.

I did look at your earlier log (...173 175 runs 1), and compared them to my runs....you can see them in my log review request a couple of days ago.

This what I noticed:

1. you are using an older firmware version 11...suggest you switch to version 15
2. your timing is very erratic...
3.your boost values are much higher....possibly resulting in erratic timing
4. trims are higher, but your IAT was lower...seems OK
5.AFR compares nicely and seems ok.
6. Map 2 target seems to be flat 4.0. Almost like a map 6 with 4.0 flat boost. The boost pressures seems to be too much.This may be due to the firmware version, though I have seen some difficulties with version 11 that did not make sense.

I plan to do map 0,1,2, runs and map 6-3, 3.5, and 4 flat. in the next week or so.

Will compare more later.

I would definitely install version 15, before any more runs.

Alex


2020 330iX auto sport w/M track handling, JB4 ; 93 octane; Honda S2000; Ninja Z1000.
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VipinLJ VipinLJ is offline
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Default 04-02-2020, 08:30 AM

Quote:
Originally Posted by Turboh
Hi,

I have the identical car on 93 octane and drop in K&N.

I did look at your earlier log (...173 175 runs 1), and compared them to my runs....you can see them in my log review request a couple of days ago.

This what I noticed:

1. you are using an older firmware version 11...suggest you switch to version 15
2. your timing is very erratic...
3.your boost values are much higher....possibly resulting in erratic timing
4. trims are higher, but your IAT was lower...seems OK
5.AFR compares nicely and seems ok.
6. Map 2 target seems to be flat 4.0. Almost like a map 6 with 4.0 flat boost. The boost pressures seems to be too much.This may be due to the firmware version, though I have seen some difficulties with version 11 that did not make sense.

I plan to do map 0,1,2, runs and map 6-3, 3.5, and 4 flat. in the next week or so.

Will compare more later.

I would definitely install version 15, before any more runs.

Alex
Heya

I did update my firmware to v15. In the last few posts, the logs are all on v15.
And yes. I did compare your logs with mine and noticed that my boost was higher than yours (even the spikes). I messaged Ando about it and he said that could be because of various factors such as environment, fuel etc (I forgot what exactly he said but Iíll check and update). He said my logs looked fine.
I had another friend who is not on here go through my logs and he said the same thing you said

Do you have any settings for a map 6 that maybe I could try? I am a noob to this and I have no idea how to make a custom map.

Regards,
Vipin


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Default 04-02-2020, 08:55 AM

Quote:
Originally Posted by Turboh
Hi,

I have the identical car on 93 octane and drop in K&N.

I did look at your earlier log (...173 175 runs 1), and compared them to my runs....you can see them in my log review request a couple of days ago.

This what I noticed:

1. you are using an older firmware version 11...suggest you switch to version 15
2. your timing is very erratic...
3.your boost values are much higher....possibly resulting in erratic timing
4. trims are higher, but your IAT was lower...seems OK
5.AFR compares nicely and seems ok.
6. Map 2 target seems to be flat 4.0. Almost like a map 6 with 4.0 flat boost. The boost pressures seems to be too much.This may be due to the firmware version, though I have seen some difficulties with version 11 that did not make sense.

I plan to do map 0,1,2, runs and map 6-3, 3.5, and 4 flat. in the next week or so.

Will compare more later.

I would definitely install version 15, before any more runs.

Alex
Hi,

I see you shifted to V15. I did a quick comparison with your 3 runs against the ones I posted a couple of days ago, and for which I have not yet received any review.

It is very interesting to do the comparisons. This is what I noticed, compared to my runs:

1. Big timing drop on ign 1, map 0 and acceleration 51, ave boost 12.1, advance is in the 7s.

2. Map 2 and 3 runs target values show what was added. Mine does not. Mine shows a total target value, i.e. close to actual boos value. I have noticed this before on other firmware change overs. I have loaded and reloaded the firmware several times, so I think it should be OK. Still, it raises a question about mixing up different firmwares on the JB4. Others have had similar issues with firmware 11.

2. Map 2 and 3 timing seems to be on the low side compared to mine at roughly the same IAT.

3. Map 2 acceleration is about 58 and same as mine. Map 3 acceleration is 60 and much faster.

The biggest difference I noticed and would like an answer to is that your final boost average is 17.4 psi vs mine at 14.9 psi. IATs and acceleration we the same. You ignition advance was 4.2 and mine was 7.0. Your ignition variation and mine tend to be quite erratic...not smooth.

Stay in touch.

Alex


2020 330iX auto sport w/M track handling, JB4 ; 93 octane; Honda S2000; Ninja Z1000.
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Default 04-02-2020, 09:31 AM

Quote:
Originally Posted by VipinLJ
Heya

I did update my firmware to v15. In the last few posts, the logs are all on v15.
And yes. I did compare your logs with mine and noticed that my boost was higher than yours (even the spikes). I messaged Ando about it and he said that could be because of various factors such as environment, fuel etc (I forgot what exactly he said but Iíll check and update). He said my logs looked fine.
I had another friend who is not on here go through my logs and he said the same thing you said

Do you have any settings for a map 6 that maybe I could try? I am a noob to this and I have no idea how to make a custom map.

Regards,
Vipin
Hi Vipin,

I still think there is a firmware issue. Need to get Ando on that.

On my late 340iX the best setting all around was Map 6, flat boost on all rpms at 5.0 psi. and gain about 9. The rest at default.

I plan to start my map 6 at 3.5 psi flat and gain 9. I am concerned that this engine is already quite aggressive. I will look for that boost which yields the best acceleration with the maximum timing advance and no sharp drops or zero timing. All other data in the safe range. Calculate acceleration from the mph column. I have know that more boost does not equate to better performance, all things being equal.

I use excel for the calculations and graphs. Virtual Dyno is fun too, once you get the hang of how it works. Still, the mph column is the nice for quick performance comparison.

Let me know what you find out from Ando.

Thanks,

Alex


2020 330iX auto sport w/M track handling, JB4 ; 93 octane; Honda S2000; Ninja Z1000.
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VipinLJ VipinLJ is offline
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Default 04-02-2020, 09:33 AM

I’ve PMed you Alex


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Default 04-08-2020, 08:16 AM

Quote:
Originally Posted by VipinLJ
Iíve PMed you Alex
See my email to you.

Here are my settings
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Default 04-08-2020, 08:18 AM

Missed one
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VipinLJ VipinLJ is offline
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Default 04-08-2020, 08:59 AM

Thank you very much! I’ll try those numbers and let you know how it goes. Damn covid isn’t helping much unfortunately.


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Default 09-19-2020, 05:00 PM

Posting a log in 3rd for review. Any insight will be appreciated.
I'm also posting a log of a WOT and LC run from yesterday. I noticed a power drop when shifting from 1st to 2nd and 2nd to 3rd at the red line. Does the log show why that happened? There was a slight jerk when shifting and the car felt like it was cutting/losing power right when it shifted.
Attached Files
File Type: csv P58_M3_R1_200909_newlog.csv (12.8 KB, 16 views)
File Type: csv P58_M3_R1_200918_WOT.csv (8.7 KB, 9 views)
File Type: csv P58_M3_R1_200917WOT.csv (14.0 KB, 11 views)
File Type: csv P58_M3_R1_200916_LC.csv (22.8 KB, 10 views)


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Default 09-19-2020, 08:49 PM

Try a run from 3rd gear @2500rpm, go wide open throttle (but don't activate the little switch at the end of the pedal travel (this will cause the transmission to drop down a gear), all the way up to recline and a shift into 4th.

Pulls from a standstill or 1st and second gear tend to give a big variance in results.

You probably want to drop your boost targets @ and below 2500 rpm to something a bit more conservative, lugging your engine at high boost and low rpm and high load is a recipe for disaster.
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VipinLJ VipinLJ is offline
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Default 09-20-2020, 08:17 AM

Quote:
Originally Posted by KnifeEdge87
Try a run from 3rd gear @2500rpm, go wide open throttle (but don't activate the little switch at the end of the pedal travel (this will cause the transmission to drop down a gear), all the way up to recline and a shift into 4th.

Pulls from a standstill or 1st and second gear tend to give a big variance in results.

You probably want to drop your boost targets @ and below 2500 rpm to something a bit more conservative, lugging your engine at high boost and low rpm and high load is a recipe for disaster.
The first file (xxxxxxx_newlog.csv) is a logging run without TC, starting at below 2000 RPMs in 3rd gear, shifting to 4th at the red line. Or are you asking for a new log from 2500 RPMs? If so, yes. I'll try getting one today.

My car doesn't downshift when in manual mode, even when the downshift button under the pedal is pressed. It only does that in S or D mode.

Also, how do I reduce boost target at low RPMS? I use the stock settings from the first page of the firmware thread. I don't know how to edit anything else.


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