Car misfiring high rpm's.

zbluffz · 11-09-2021, 01:15 PM

So I recently ran Full E85 in my F80. I have all supporting mods to run E85. My car is tuned with MHD. I flashed on the OTS stage 2 full e85 map, and noticed that the car is breaking up around 6k rpm and above WOT. Plugs were just installed and are gapped correctly. Any idea on what the problem could be?

TouringM3 · 11-09-2021, 01:43 PM

Did you add a secondary inline fuel filter such as radium or injector dynamics?
Could be that you have some gunk in your lines or injectors blocking them from meeting full flow demands? (Just guessing)

According to the folks at Bend Calibration this is necessary for US cars.
https://www.bendcalibration.com/faqs

TopJimmy · 11-09-2021, 09:36 PM

Have you done any logging to look at your fuel trims?

3lucidus · 11-10-2021, 11:21 PM

dare i say... crank.. hub...?

Ropes · 11-11-2021, 10:12 AM

Quote:

Originally Posted by 3lucidus

dare i say... crank.. hub...?

For what op describes you might as well say you want to shot flames

Tommix · 11-12-2021, 01:10 PM

Quote:

Originally Posted by zbluffz

So I recently ran Full E85 in my F80. I have all supporting mods to run E85. My car is tuned with MHD. I flashed on the OTS stage 2 full e85 map, and noticed that the car is breaking up around 6k rpm and above WOT. Plugs were just installed and are gapped correctly. Any idea on what the problem could be?

I had same kind of issue. I ran E50 custom map. Got some jerking after 6000 rpm in WOT. New plugs and coils, there was nothing wrong in my logs but there was still jerking. Then one of the injectors (cyl 4) get stuck and I replace all of them. After that I didnt get any jerking.

zbluffz · 05-27-2022, 10:52 AM

Selling a passenger side axle off of my F80 M3. Had these off to be sent to DSS, but I ended up buying brand new axles and sending them off instead. Have no use for this, so my loss is your gain. Price is $600 usd. [IMG][/IMG]

11-09-2021, 01:15 PM	#1
zbluffz New Member 0 Rep 5 Posts Drives: BMW M3 Join Date: Apr 2021 Location: Delaware iTrader: (0)	Car misfiring high rpm's. So I recently ran Full E85 in my F80. I have all supporting mods to run E85. My car is tuned with MHD. I flashed on the OTS stage 2 full e85 map, and noticed that the car is breaking up around 6k rpm and above WOT. Plugs were just installed and are gapped correctly. Any idea on what the problem could be?
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11-09-2021, 01:43 PM	#2
TouringM3 Lieutenant 620 Rep 498 Posts Drives: '18 F80 6MT / '16 F31 Join Date: May 2020 Location: Bend, OR iTrader: (0) Garage List 2018 F81 M3 Touring [10.00] 2016 F30 328xi Comp ... [0.00]	Did you add a secondary inline fuel filter such as radium or injector dynamics? Could be that you have some gunk in your lines or injectors blocking them from meeting full flow demands? (Just guessing) According to the folks at Bend Calibration this is necessary for US cars. https://www.bendcalibration.com/faqs __________________ 2018 F81 M3 Touring Project \| Bend, Oregon, USA Instagram: @TouringM3
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11-09-2021, 09:36 PM	#3
TopJimmy Major General 5515 Rep 5,189 Posts Drives: 2023 M3 Comp xDrive Join Date: Jul 2019 Location: Chester County, PA iTrader: (5)	Have you done any logging to look at your fuel trims? __________________ '18 F80 Base 6MT \| '19 F82 Exec DCT \| '18 F82 Comp Exec DCT \| '23 G80cx
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11-10-2021, 11:21 PM	#4
3lucidus Eat Sleep Trance 65 Rep 358 Posts Drives: F80 M3 ZCP Join Date: Oct 2012 Location: Sydney iTrader: (0)	dare i say... crank.. hub...?
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05-27-2022, 10:52 AM	#7
zbluffz New Member 0 Rep 5 Posts Drives: BMW M3 Join Date: Apr 2021 Location: Delaware iTrader: (0)	F80 M3 PS Axle FS Selling a passenger side axle off of my F80 M3. Had these off to be sent to DSS, but I ended up buying brand new axles and sending them off instead. Have no use for this, so my loss is your gain. Price is $600 usd. [IMG][/IMG] Attached Images
	Appreciate 0 Quote