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fn42 fn42 is offline
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Default mmp 1k tuning boost - 07-31-2019, 08:48 AM

the duty bias & FF tuning thread has been pretty helpful but I still can't get the boost to come in smoothly - do I need to be increasing duty bias under 4K RPM more?

thanks!!!
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335xi sedan 6mt / MMP 1k turbos / MHD FlexFuel + AIC6 PI / South Bend Stg3 clutch
535xi wagon 6mt / ebay 17t / FBO
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Default 07-31-2019, 10:56 AM

Quote:
Originally Posted by fn42
the duty bias & FF tuning thread has been pretty helpful but I still can't get the boost to come in smoothly - do I need to be increasing duty bias under 4K RPM more?

thanks!!!
Can you define smoothly a bit more?

I see your over target a bit around the 4k mark- you could LOWER duty bias a bit to keep that closer to your target.


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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fn42 fn42 is offline
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Default 07-31-2019, 11:04 AM

after it stops spooling it drops a few lbs and then goes a few lbs over target, you can really feel the 5psi change. thanks for the feedback, I'll pull some out above 4k and see how it does


335xi sedan 6mt / MMP 1k turbos / MHD FlexFuel + AIC6 PI / South Bend Stg3 clutch
535xi wagon 6mt / ebay 17t / FBO
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Default 07-31-2019, 02:40 PM

Yeah, drop it down in the suggested areas, then do 2-3 WOT pulls. Let car adapt a bit & then relog.

We can adjust more from there.


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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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