N54Tech.com - International Turbo Racing Discussion
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themillsbros themillsbros is offline
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Default 07-26-2021, 01:21 PM

Thanks for the info, so to clarify that i understand correctly, i should enable bit 6 in options and i will get the boost correlated maps. The thing is i am running stock turbos(no stock ff bef), is it still good to go?
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temperamental temperamental is offline
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Default 07-26-2021, 02:02 PM

You need to request the specific FF Backend Flash from terry for stock turbos then activate Bit 6 and you good to go.


JB4 Flex Fuel //MMP Stage 3 turbos//Custom Exhaust/BMS DCI//FMIC/KW suspension//Fuel-it Pi & Fuel it stage 4/BMS OCC's and too much to mention
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temperamental temperamental is offline
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Default 07-26-2021, 02:27 PM

I read your previous posts. I think you may be running the Fuelit blutooth kit where you van view your ethanol content in the Fuelit or Jb4 app which is not what this thread is about.

This thread is how to use the JB4 with the Fuel-it Flex Fuel kit with the Motive Flex Fuel module.

Let me know if i understand you correctly.


JB4 Flex Fuel //MMP Stage 3 turbos//Custom Exhaust/BMS DCI//FMIC/KW suspension//Fuel-it Pi & Fuel it stage 4/BMS OCC's and too much to mention
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themillsbros themillsbros is offline
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Default 07-26-2021, 04:40 PM

Okay I misunderstood the aim of this thread. My apologies. But just to let you know Terry prescribes the hybrid FF bef because there is no stock turbo version. I'll edit my prev post so no one gets confused.
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Cnterline Cnterline is offline
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Default 10-04-2021, 04:26 AM

What PIN number do I use for the JB4 Fuel it 0-5 reference wire for E85 content
Is it 15 or 16 ? My JB4 is bought in 2020 and is for the mercedes platform
Thanks
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Cnterline Cnterline is offline
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Default 10-04-2021, 04:51 AM

I just bought the Fuel It Bluetooth set up ,hoping to just hook up the white wire to pin 16 and have it read same value as the app, my JB4 is for the mercedes platform , is there anything else I should know trying to see if there’s another step aside from the red and black wires being hooked up
Thanks
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temperamental temperamental is offline
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Default 10-04-2021, 01:17 PM

You will have to email burgertuning or fuelit directly for guidance on the Mercedes model. This guide is specifically for the N54. Sorry.


JB4 Flex Fuel //MMP Stage 3 turbos//Custom Exhaust/BMS DCI//FMIC/KW suspension//Fuel-it Pi & Fuel it stage 4/BMS OCC's and too much to mention
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Cnterline Cnterline is offline
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Default 10-05-2021, 04:54 PM

Ok thanks
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ac_schnitzel ac_schnitzel is offline
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Default 10-24-2021, 09:08 PM

Do you need to run map 5 only when using the FF BEF or can you still use other JB4 maps?
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Reco Reco is offline
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Default 10-24-2021, 09:44 PM

Quote:
Originally Posted by ac_schnitzel
Do you need to run map 5 only when using the FF BEF or can you still use other JB4 maps?
Yes, you can run any map but start testing with map 1 and progress from there. It all depends on your supporting mods and how much ethanol you are running. For me map 7 with around E60 was sort of safe limit with stock HPFP and "stage 2" LPFP.


2007 335i E92, AT, JB4 + Flex Fuel BEF, FBO, Turbosmart DVs, VRSF 2" inlets, Stage 2 LPFP, NGK 97506 and Fuel-IT ECA
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elite11b elite11b is offline
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Default 12-05-2021, 03:01 PM

I'm about to attempt to wire up the flex fuel with my jb4 using the write up on n54tech.com.....i know what bef i need and i have it ready to go...... My question is do i flash the map using standard mhd bef or mhd flex fuel flasher? I'm only asking because the maps are available through standard download now and it doesn't say anything about flashing them different
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temperamental temperamental is offline
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Default 12-05-2021, 11:53 PM

@elite11b

1. Remember to purchase the MHD flex fuel module from the MHD store. This flash is autonatically applied by MHD when a flex fuel map is flashed.

2. Then choose the appropriate flex BEF based on your software version and mods from here: "Current BEF Templates" N54 MHD Back End Flash Maps - N54Tech.com - International Turbo Racing Discussion

2. Then flash it to your car as you would flash a normal BEF using MHD.

3. Follow the guide as in post #1 in this thread and you should be okay.


JB4 Flex Fuel //MMP Stage 3 turbos//Custom Exhaust/BMS DCI//FMIC/KW suspension//Fuel-it Pi & Fuel it stage 4/BMS OCC's and too much to mention

Last edited by temperamental; 12-06-2021 at 12:40 AM..
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