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Milan's Avatar
Milan Milan is offline
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Car: 08 335xi
Default Tip-in/boost transition trims maxing at 50 - 06-17-2020, 10:46 AM

I've had this problem on my car for a long time now. If I am cruising or coasting at a lower speed, and I apply throttle, lets say 30-50%, my trims immediately max out at 50 and the car hesitates to accelerate until something happens and it gets fueling and then it's fine.

I have tried logging it to the best of my ability but its so difficult to replicate in a log. I have increased my fuel scalar in the areas that the trims are maxing but it doesn't seem to have any impact on trims. There is probably a table I am not adjusting correctly but I don't see what its called...

Setup:
6466
6AT
JB4, BMS PI
Dual walbro 450 with external fpr
Attached Files
File Type: csv P30_M3_R2_200617_1100.csv (18.5 KB, 38 views)


09 335 - 6266
07 335i - 6870, E85 - SOLD
08 335xi - 6466, custom direct port meth - SOLD
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Dave @ BMS/Fuel-It! Dave @ BMS/Fuel-It! is offline
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Car: E92 335XI
Default 06-17-2020, 02:45 PM

Have you tried bumping your FOL up a tad from 0?


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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Milan Milan is offline
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Default 06-17-2020, 02:52 PM

Quote:
Originally Posted by Dave @ BMS/Fuel-It!
Have you tried bumping your FOL up a tad from 0?
When my FOL is above zero, granted I have only tried it at 40, it seems to put too much stress on my HPFP


09 335 - 6266
07 335i - 6870, E85 - SOLD
08 335xi - 6466, custom direct port meth - SOLD
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Default 06-18-2020, 08:46 AM

Quote:
Originally Posted by Milan
When my FOL is above zero, granted I have only tried it at 40, it seems to put too much stress on my HPFP
Try 10, and bumping up slowly


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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