Possible to code out throttle cut when braking?

apecush · 05-21-2019, 09:29 AM

On several occasions (mostly on the track) I've been annoyed by the throttle being cut when hitting the brakes. Is it possible to code out or disable this? Car is a 2008 6MT model.

I understand that this is a safety feature to prevent unintended acceleration, but the clutch pedal does a pretty good job at that too.

Thanks.

PACarGuy · 05-21-2019, 09:37 AM

I don't know the answer, but just curious as to why you'd want that. Is this for rev matching?

apecush · 05-21-2019, 02:56 PM

left foot braking and rapidly bedding in/getting brakes to temperature. Never had an issue with it when rev matching, seems to only be an issue when the clutch is engaged (i.e. not pressed).

daarts · 05-21-2019, 04:32 PM

Pretty sure that this is deactivated automatically with DSC off. I had no issues left foot braking on the track or on canyons.

apecush · 05-21-2019, 07:36 PM

Weird. I experienced it last night with DSC off. Full transparency, I had new tires put on today and was trying to have a little bit of burnout fun with the old ones. Throttle cut = no standing burnout.

PACarGuy · 05-22-2019, 08:02 AM

Quote:

Originally Posted by apecush

left foot braking and rapidly bedding in/getting brakes to temperature. Never had an issue with it when rev matching, seems to only be an issue when the clutch is engaged (i.e. not pressed).

Makes sense on the brake bedding. I would think the benefits under LF braking would be minimal given that you're not likely to engage much throttle while trail braking anyway, but then I haven't played with this much so maybe there's something to it. I have heard of using the technique for turbo cars to keep the boost pressure up.

amrazM · 05-22-2019, 10:40 PM

Quote:

Originally Posted by apecush

Weird. I experienced it last night with DSC off. Full transparency, I had new tires put on today and was trying to have a little bit of burnout fun with the old ones. Throttle cut = no standing burnout.

You can’t do a standstill burnouts in newer bmws without a line lock. On track with dsc off you can still trailbrake the car

Solo_M_Tech · 06-10-2019, 09:27 PM

I left foot brake on track all the time. No throttle cut. DSC off all the time.

05-21-2019, 09:29 AM	#1
apecush Lieutenant 30 Rep 521 Posts Drives: 2008 E90 M3 Join Date: Aug 2011 Location: Edmonton iTrader: (2)	Possible to code out throttle cut when braking? On several occasions (mostly on the track) I've been annoyed by the throttle being cut when hitting the brakes. Is it possible to code out or disable this? Car is a 2008 6MT model. I understand that this is a safety feature to prevent unintended acceleration, but the clutch pedal does a pretty good job at that too. Thanks.
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05-21-2019, 09:37 AM	#2
PACarGuy Captain 675 Rep 973 Posts Drives: 2012 E92 M3 DCT ZCP Join Date: Nov 2015 Location: Philly burbs, PA iTrader: (1) Garage List 2012 E92 M3 [8.33] 2019 G01 X3 (wife's) [0.00]	I don't know the answer, but just curious as to why you'd want that. Is this for rev matching? __________________ 2012 E92 M3 \| ZCP \| DCT \| Space Grey Metallic \| Black Novillo \| BE/ARP \| MPE V2 \| AA green filter \|BMW CF Rear Spoiler, RW Carbon Diffuser, CF Front Splitters \| DTEC 160W Angel Eyes
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05-21-2019, 02:56 PM	#3
apecush Lieutenant 30 Rep 521 Posts Drives: 2008 E90 M3 Join Date: Aug 2011 Location: Edmonton iTrader: (2)	left foot braking and rapidly bedding in/getting brakes to temperature. Never had an issue with it when rev matching, seems to only be an issue when the clutch is engaged (i.e. not pressed).
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05-21-2019, 04:32 PM	#4
daarts Private 39 Rep 94 Posts Drives: E92 M3 Join Date: Apr 2018 Location: SoCal iTrader: (1)	Pretty sure that this is deactivated automatically with DSC off. I had no issues left foot braking on the track or on canyons. __________________ 2012 E92 M3 ZCP Jerez Black/Bamboo 2020 F90 M5 Comp British Racing Green/Tartufo
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05-21-2019, 07:36 PM	#5
apecush Lieutenant 30 Rep 521 Posts Drives: 2008 E90 M3 Join Date: Aug 2011 Location: Edmonton iTrader: (2)	Weird. I experienced it last night with DSC off. Full transparency, I had new tires put on today and was trying to have a little bit of burnout fun with the old ones. Throttle cut = no standing burnout.
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06-10-2019, 09:27 PM	#8
Solo_M_Tech Brigadier General 1688 Rep 3,140 Posts Drives: 2014 M5 6MT Join Date: Nov 2013 Location: Massachusetts iTrader: (7) Garage List 2014 BMW M5 [0.00]	I left foot brake on track all the time. No throttle cut. DSC off all the time. __________________ 2014 M5 6MT
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