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M3/M4/M2C S55 JB4 Anti-LAG setup -
05-08-2020, 02:58 PM
Finally getting around to writing up some directions for this. We plan to offer a kit down the road but for now I'll just post it as a DIY for those who want to dive in and start playing around.
Requirements for S55 Anti-LAG: 1) A BEF with the proper table adjustments. We add "AL" to the filename of our BEF to indicate the changes required have been made. 2) Solder a resistor to the JB4 control board, see photo below. 3) Add a wire to the JB4 harness between spot #20 on the JB4 connector and spot #2 on the BROWN MAP sensor connection. DSUB pin (standard, not high desnity) required for this. No resistor is needed in the wire. Posi-tap for MAP side connection is the easiest method. 4) Latest JB4 firmware with anti-lag logic enabled by setting DWP = 90. 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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05-12-2020, 10:17 AM
Nice write up!!
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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05-21-2020, 03:38 AM
I need that to build 10-12psi from zero on upgraded turbos ..... great news
13 BMW 335ix Full Weight 10.64 @129mph N55 WR SOLD 15 BMW M4 Full Weoght 10.69@133mph stock turbos SOLD 18 BMW XXXX Car in Process drag track online set up contact on Instagram @luchocampusano  YouTube Lucho Campusano
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06-25-2020, 09:28 AM
What changes need to be made to the backend map? I'm really interested in trying this with my F80Paul map, though it's via BM3. He's not sure what changes are needed, so if you could provide them then it would be appreciated
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06-25-2020, 09:49 AM
Do you have a JB4 ?
13 BMW 335ix Full Weight 10.64 @129mph N55 WR SOLD 15 BMW M4 Full Weoght 10.69@133mph stock turbos SOLD 18 BMW XXXX Car in Process drag track online set up contact on Instagram @luchocampusano YouTube Lucho Campusano
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06-25-2020, 10:15 AM
I had see several cars running with JB4 no matter which flash or plattafom. Not 100% sure for antilag if could be done on other different flash from BMS
13 BMW 335ix Full Weight 10.64 @129mph N55 WR SOLD 15 BMW M4 Full Weoght 10.69@133mph stock turbos SOLD 18 BMW XXXX Car in Process drag track online set up contact on Instagram @luchocampusano YouTube Lucho Campusano
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11-13-2020, 10:24 AM
We'll have an upgrade kit on our site shortly to simplify the install for this!
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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