I already have a "drift mode" on my M5

"Flynorcal: pilot, offshore sailor, car racer and panty thief" (flynorcal) 04/28/2017 at 18:18 • Filed to: None

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My E60 M5 already sends all the power to the rear wheels. 

Twingo Tamer - About to descend into project car hell. > Flynorcal: pilot, offshore sailor, car racer and panty thief 04/28/2017 at 18:21

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My e36 has a drift mode. It’s called terrible tyres and worn out suspension.

Textured Soy Protein > Flynorcal: pilot, offshore sailor, car racer and panty thief 04/28/2017 at 18:24

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Well *technically* you have to put it in dynamic traction control mode for full slidey action. Or turn it off.

DC3 LS, will be perpetually replacing cars until the end of time > Flynorcal: pilot, offshore sailor, car racer and panty thief 04/28/2017 at 18:33

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My Integra has a prototype one. You just turn in too fast on a gravel road.

RallyWrench > Twingo Tamer - About to descend into project car hell. 04/28/2017 at 18:37

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Mine too. Every E36 has drift mode, you just have to apply the throttle while cornering to engage it.

Twingo Tamer - About to descend into project car hell. > RallyWrench 04/28/2017 at 18:48

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“To activate drift mode: hoon”

E90M3 > Textured Soy Protein 04/28/2017 at 18:53

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Or turn it off.

Which you can’t in an E60 M5 with a 6MT.

Textured Soy Protein > E90M3 04/28/2017 at 19:52

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I haven’t driven an M5 but in my 135is, dynamic mode allowed a fair amount of sliding before it reined things in. My 335xi with its 275-width rear tires you have to do something REALLY dumb to break the tires loose.

Flynorcal: pilot, offshore sailor, car racer and panty thief > E90M3 04/28/2017 at 21:06

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What? Really?

I have the SMG, and I have on, off, and M-mode. In fact in order to get the fastest shifts possible you have to disengage DSC.

I’ve never been in the manual version of the car so I’ve no idea but that is nuts if you can’t turn it off.

E90M3 > Textured Soy Protein 04/28/2017 at 22:37

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I didn’t realize there was a different setting in non-M cars. I know in the M3 you can change the traction to a preset with the “M” button.

E90M3 > Flynorcal: pilot, offshore sailor, car racer and panty thief 04/28/2017 at 22:40

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Really, I learned stick on an M6, gotta love rich friends, and there was no way to turn traction off.

Apparently the torque from the engine would grenade the gearbox.

Textured Soy Protein > E90M3 04/28/2017 at 22:43

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In the non-M cars you press the traction control button once to put it in dynamic mode or press and hold for a while to fully deactivate. I...didn’t realize it was different on the M cars.

E90M3 > Textured Soy Protein 04/29/2017 at 07:38

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It must be different for different cars. I don’t think you can completely turn the traction off in my 3. I don’t even think I tried in my 1, and I’ve never tried in my dad’s 1; I’ll try when I go home next. I know the 135is has a sport button that changes the throttle sensitivity while the 2 non-M BMWs I’ve had have lacked that.

Textured Soy Protein > E90M3 04/29/2017 at 10:52

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The sport button on the 135 DCT changes shift map/firmness and throttle.

With the DTC button on the dash, a single-press puts it in dynamic traction control mode, press and hold for 3 seconds deactivates it. From the 2011 E92/E93 owner’s manual (but the 135is was the same for me):

It doesn’t mention “when trying to hang the ass end of your car out around turns” as one of the recommended situations for dynamic mode but it works alright for that purpose, at least with rwd.

I suppose the part about it still try to act like a differential interlock even when deactivated is the “not fully off” you’re referring to but I can tell you from experience that even with dynamic mode on you still get a lot of leeway.

E90M3 > Textured Soy Protein 04/29/2017 at 13:49

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I wasn’t sure all what the sport button did, as it’s not my car I never looked into it.

I just pulled out the manual for the 3, and it’s identical to that. I guess it didn’t change between 09 and 11. I had no idea it was like that, I just assumed it was on or off, and didn’t realize there was a limited DSC function in the non-M cars.

On the M3 to get into MDM, which will let you slide quite a lot, you have to have it programed to your M button. When you turn off DSC in the M3, it’s off.

Textured Soy Protein > E90M3 04/29/2017 at 15:29

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I’m pretty sure the limited DSC function is basically brake based torque vectoring with an open diff, but it was before companies started hyping that sort of feature as “torque vectoring.” Most folks on the forums call it e-diff. I remember seeing a thread where a guy datalogged the brakes to see how the e-diff was applying the inside & outside brake on an autocross.

The M cars they have a real LSD so no need to have the DSC simulating one.

On back roads with the 135is in dynamic mode, it did a halfway decent impression of an LSD where I could feel the rear tires breaking grip in a nice progressive way and rotating through the turn instead of a full-on open diff. Putting down the power in a straight line, not so much. With the open diff and the soft stock non-M rear subframe bushings it was squirelly.

I honestly have never put my 335xi in dynamic mode. Its limits are so high with everything done to it that I can’t even remember the last time I managed to get the DSC light to blink even doing seriously stupid stuff.

Now I want to go bomb around some back roads...

E90M3 > Textured Soy Protein 04/29/2017 at 15:35

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Now that you bring up the open diff, it makes sense they would include something like that.

MDM or M Dynamic Mode in the M cars is the limited DSC program, and it basically lets you slide but not spin out.

I wish there were some decent backroads near me.

Textured Soy Protein > E90M3 04/29/2017 at 15:40

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This is my playground a few short miles west of Madison...

E90M3 > Textured Soy Protein 04/29/2017 at 15:44

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Much better than what I’ve got near me.