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scotzmon scotzmon is offline
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Question JB4 on 340i XDrive, no difference maps 0,1,2, etc - 02-14-2019, 08:59 AM

I own a 2016 BMW 340i XDrive and have a JB4 with the Bluetooth option.

As far as I can tell there's no difference with the JB4 on or off. I believe Map0 is disabled.

My gas is from BP and 93 RON.

Attached should be data logs from Map0, Map1 & Map2.

Hopefully you can tell me what I'm doing wrong, or if there are any options available?

Many thanks!
Attached Files
File Type: csv 2019-02-01 16_56_02 Map-0.csv (6.5 KB, 26 views)
File Type: csv 2019-02-01 16_56_34 Map-1.csv (10.0 KB, 28 views)
File Type: csv 2019-02-01 16_56_58 Map-2.csv (11.7 KB, 34 views)
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Terry @ BMS's Avatar
Terry @ BMS Terry @ BMS is offline
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Default 02-14-2019, 01:00 PM

You are correct, settings are all 0, so the JB4 is disabling itself. Correct and relog! Specifically boost safety.

JB4 B48/B58 Firmware, Settings, and Notes - N54Tech.com - International Turbo Racing Discussion


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scotzmon scotzmon is offline
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Arrow New, post-recommended change updated logs attached - 02-14-2019, 02:37 PM

New, post-recommended change updated logs attached
Attached Files
File Type: csv new2019-02-14 15_54_52 Map-1.csv (18.5 KB, 27 views)
File Type: csv new2019-02-14 16_03_36 Map-2.csv (6.6 KB, 26 views)
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Turboh Turboh is offline
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Default 02-21-2019, 11:08 AM

Hi,

You should post WOT runs in third gear from 2000 to 6000 rpm. Do at least 4 of them to allow auto adjust features to settle out.

I like running Map6 at 5 psi flat with gain of 9.

Quite fast for me and better than all the other maps, even map 6 absolute.

I look for maximum acceleration with minimum boost and maximum timing. Lots of WOT’s.

Lol ��


2017 340iX with M track handling package, 6 speed manual, BMS intake, and JB4 piggyback; EWG and FP wires; 93 octane; and fun with Honda S2000; Ninja Z1000.
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scotzmon scotzmon is offline
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Icon1 New logs, as requested - 02-22-2019, 09:30 AM

New logs attached, as requested. WOT, M3, 2K- 6K (roughly).
Attached Files
File Type: csv 2019-02-22 11_15_05 Map-6.csv (6.0 KB, 29 views)
File Type: csv 2019-02-22 11_16_07 Map-6.csv (5.6 KB, 25 views)
File Type: csv 2019-02-22 11_16_36 Map-6.csv (3.9 KB, 28 views)
File Type: csv 2019-02-22 11_17_27 Map-3.csv (4.7 KB, 27 views)
File Type: csv 2019-02-22 11_18_08 Map-3.csv (4.2 KB, 25 views)
File Type: csv 2019-02-22 11_18_24 Map-3.csv (4.7 KB, 27 views)

Last edited by scotzmon; 02-22-2019 at 09:38 AM..
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Turboh Turboh is offline
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Default 02-22-2019, 12:04 PM

Hi,

I just looked at the maps 6 runs only. The acceleration is very good and much better than mine, and you timing is very nice, advance wise. However AFRs are very high and trims are maxed out.

Terry should chime in, but I would do WOTs in map 1 and 2 first, and avoid Map 6 until more runs are made.

Are you running additives, race gas, or an M series car?

Alex


2017 340iX with M track handling package, 6 speed manual, BMS intake, and JB4 piggyback; EWG and FP wires; 93 octane; and fun with Honda S2000; Ninja Z1000.
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scotzmon scotzmon is offline
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Question Answers to questions - 02-22-2019, 12:31 PM

Alex,

My car is a 340i M-Sport, but definitely not an M-Series.

I'm not running any special fuel or additives; just BP 93 RON premium fuel.

The only unusual thing with this vehicle is the BMW original M-Performance exhaust, but it doesn't have MPPK. Not sure that makes any difference other than sound.

I did attach Map3 runs previously.

Is there anything I can do to help the AFR, such as installing an air intake?

Thanks a million!
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Payam @ BMS Payam @ BMS is offline
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Default 02-22-2019, 01:43 PM

Go back to map 1 or 2. Fuel trims are maxed out on map3 and 6.
Update your JB4 firmware as well.
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Burger Motorsports
Home of the Worlds fastest N20s, N54s, N55s, S55s, N63s, and S63s!

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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