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Dagumpf's Avatar
Dagumpf Dagumpf is offline
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Car: BMW E93 N54 2009
Default LC on 2009 N54 E93 - 01-19-2019, 12:18 AM

Hi all, I have an 2009 E93 N54 DCT w/ FBO JB4 MHD-BEF running 40% E85.

I'm trying to find the best solution for launch control on its Dual Clutch Transmission. Standard is launch at 5k revs, and it's not adjustable, but it just burns rubber. Launching without has too much lag, whatever you do.

I believe there are options to flash the transmission with the 135i firmware for 3.6k revs, but I don't have those tools. I also heard MHD was supposedly working on something? Any advice or recommendations?

Also, anything else I should be aware of to take care of the DCT under the higher power levels?

Thanks in advance
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Dave @ BMS/Fuel-It!'s Avatar
Dave @ BMS/Fuel-It! Dave @ BMS/Fuel-It! is offline
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Default 01-19-2019, 09:23 PM

Quote:
Originally Posted by Dagumpf
Hi all, I have an 2009 E93 N54 DCT w/ FBO JB4 MHD-BEF running 40% E85.

I'm trying to find the best solution for launch control on its Dual Clutch Transmission. Standard is launch at 5k revs, and it's not adjustable, but it just burns rubber. Launching without has too much lag, whatever you do.

I believe there are options to flash the transmission with the 135i firmware for 3.6k revs, but I don't have those tools. I also heard MHD was supposedly working on something? Any advice or recommendations?

Also, anything else I should be aware of to take care of the DCT under the higher power levels?

Thanks in advance
I think there are some dct guys running a modified trans flash.

Breaking driveshaft I beleive is an issue as well.



http://www.fuel-it.biz/

e92 AT 335xi 2.0
Doc Race Kit 6062
Fuel-It!Platinum DIY PI Kit + Stage 2BL
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(((coke))) (((coke))) is offline
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Car: 335i n54
Default 01-21-2019, 11:13 AM

look at this post I did a while ago,
I am currently with launch control at 3.5k at a 335 dct 2009.

https://www.n54tech.com/forums/showthread.php?t=56208
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