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      07-28-2021, 06:07 PM   #23
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Quote:
Originally Posted by McLaren720s View Post
What are your damper settings when launching? Have you tried Comfort and see if it makes any difference? Sometimes a softer suspension can improve traction as more weight is transferred on the tire.
sport plus everything. Never thought about that.
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      08-01-2021, 09:43 PM   #24
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Quote:
Originally Posted by G80BSM View Post
Quote:
Originally Posted by NCG80M3 View Post
Just saw this. So I know when i first started to launch the car I would wait 3 seconds then go and that is not the way to do it. As soon as you see launch control ready let off the brake. Also, I had to warm up the tires a little and do it on a nice paved street. I was only getting 4.1s in a parking lot, but when I got to the street I did a 4.0 and a 3.85
Nice, the best I got was a 3.9 to 100kmph on a pvt road which has pretty decent traction.
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Originally Posted by G80BSM View Post
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Originally Posted by NCG80M3 View Post
Just saw this. So I know when i first started to launch the car I would wait 3 seconds then go and that is not the way to do it. As soon as you see launch control ready let off the brake. Also, I had to warm up the tires a little and do it on a nice paved street. I was only getting 4.1s in a parking lot, but when I got to the street I did a 4.0 and a 3.85
Nice, the best I got was a 3.9 to 100kmph on a pvt road which has pretty decent traction.

I got a 4.06 on cold tires without using launch control in efficient engine mode
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      08-01-2021, 09:53 PM   #25
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This thing is still kicking my ass. I can’t figure out the parameters the computer wants to allow launch control to activate. I do know the settings however sometimes it engages and sometimes it doesn’t. It doesn’t help I don’t have a good place to practice.
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      08-01-2021, 10:08 PM   #26
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Originally Posted by Patton250 View Post
This thing is still kicking my ass. I can't figure out the parameters the computer wants to allow launch control to activate. I do know the settings however sometimes it engages and sometimes it doesn't. It doesn't help I don't have a good place to practice.
Are you pushing the pedal all the way to the floor past the kickdown button?
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      08-02-2021, 07:56 AM   #27
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Originally Posted by beachBmmr View Post
Are you pushing the pedal all the way to the floor past the kickdown button?
I believe so. The honest truth is Iíve only attempted this maybe four or five times with success three or four times and itís always been a place I should not be doing it. LOL

I need to find a place where I can relax for an hour and try it many times. Once I do Iíll report back.
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      08-02-2021, 10:52 PM   #28
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Originally Posted by beachBmmr View Post
I got a 4.06 on cold tires without using launch control in efficient engine mode
Thatís amazing!
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      08-02-2021, 10:55 PM   #29
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Quote:
Originally Posted by Patton250 View Post
I believe so. The honest truth is Iíve only attempted this maybe four or five times with success three or four times and itís always been a place I should not be doing it. LOL

I need to find a place where I can relax for an hour and try it many times. Once I do Iíll report back.
Haha. Iíve actually successfully launched it every time Iíve tried. For ease of access Iíve saved sports plus everything plus DSC off on M2. I just press that, push the brakes and then the accelerator all the way and launch.

Are you fulfilling all the pre-launch conditions though?
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      08-03-2021, 06:27 AM   #30
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Originally Posted by G80BSM View Post
Haha. Iíve actually successfully launched it every time Iíve tried. For ease of access Iíve saved sports plus everything plus DSC off on M2. I just press that, push the brakes and then the accelerator all the way and launch.

Are you fulfilling all the pre-launch conditions though?
I have done the exact same thing. My M2 setting fulfills all the parameters. Then you just place it in second gear, hold the break floor it and wait for the launch light to come on. What Iím trying to tell you is it doesnít always work. First off once you do it the first time thereís some sort of timer I guess for it to be available to you again and from my understanding thereís also temperature restrictions on the engine which are probably exceeded all the damn time because I live in Florida. Itís 94į where I live. My main questions are after you meet all the parameters i.e. S1, DSC off, 2nd gear and brake hold for launching it what other unknown restrictions can prevent or delay launch control availability? Here are my only two guesses.

1. Timer- A mandatory waiting period between notches? If there is one how long is the timer?
2. Engine temperature restrictions- I believe I read somewhere that there are temperature ranges the transmission and engine must be in before launch control it is able to be activated. If this is true what are they?

Please understand when it comes to me please donít circle back to ďyou must have these basic settings engaged before launch control could be activated.Ē I know this. It really is quite simple. However Iím telling you that launch control availability has been limited for me having met these basic settings and Iím trying to figure out why. By the way if you hold the break and floor it without launch control activated you lay about 20 to 30 feet of rubber. Ask me how I know.
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      08-03-2021, 07:51 PM   #31
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Quote:
Originally Posted by Patton250 View Post
I have done the exact same thing. My M2 setting fulfills all the parameters. Then you just place it in second gear, hold the break floor it and wait for the launch light to come on. What Iím trying to tell you is it doesnít always work. First off once you do it the first time thereís some sort of timer I guess for it to be available to you again and from my understanding thereís also temperature restrictions on the engine which are probably exceeded all the damn time because I live in Florida. Itís 94į where I live. My main questions are after you meet all the parameters i.e. S1, DSC off, 2nd gear and brake hold for launching it what other unknown restrictions can prevent or delay launch control availability? Here are my only two guesses.

1. Timer- A mandatory waiting period between notches? If there is one how long is the timer?
2. Engine temperature restrictions- I believe I read somewhere that there are temperature ranges the transmission and engine must be in before launch control it is able to be activated. If this is true what are they?

Please understand when it comes to me please donít circle back to ďyou must have these basic settings engaged before launch control could be activated.Ē I know this. It really is quite simple. However Iím telling you that launch control availability has been limited for me having met these basic settings and Iím trying to figure out why. By the way if you hold the break and floor it without launch control activated you lay about 20 to 30 feet of rubber. Ask me how I know.
So you do need to drive a certain amount of time.. not sure exactly but I know when I tried back to back pulls it does not work. It did say in the manual (i think) that the engine does need to be warm for you to activate launch control.
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      08-05-2021, 10:06 AM   #32
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Quote:
Originally Posted by NCG80M3 View Post
So you do need to drive a certain amount of time.. not sure exactly but I know when I tried back to back pulls it does not work. It did say in the manual (i think) that the engine does need to be warm for you to activate launch control.
For sure there is a min temp for it to be activated. Can't just jump in, pull out of your garage and launch.
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      08-07-2021, 11:36 PM   #33
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View post on imgur.com

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Stock Pzeros with LC, Just swapped them to 2853519 and 3053020 Yokohoma V601s.

Will do another test soon
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      08-08-2021, 08:43 AM   #34
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View post on imgur.com

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Stock Pzeros with LC, Just swapped them to 2853519 and 3053020 Yokohoma V601s.

Will do another test soon
Wow 3.7!!!!! Nice. I finally got under four seconds yesterday. I did three runs and got 3.92. I was pretty stoked. Now I see you do 3.7 and I feel bad again.
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      08-15-2021, 06:45 PM   #35
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I was having trouble getting launch control to work as well. I recommend these BMW videos for anyone that is having trouble (Comp and Manual):

G8X Comp How To

G8X Manual How To
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      08-16-2021, 12:33 PM   #36
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Quote:
Originally Posted by Patton250 View Post
Wow 3.7!!!!! Nice. I finally got under four seconds yesterday. I did three runs and got 3.92. I was pretty stoked. Now I see you do 3.7 and I feel bad again.
Warm up your tires, and find a good piece of pavement..
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      08-16-2021, 03:20 PM   #37
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I recommend these BMW videos...
Thanks for that! Those are great, along with the 21 other videos that explain or educate us on other stuff (like the exhaust).
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      11-25-2021, 11:22 PM   #38
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Quote:
Originally Posted by Patton250 View Post
I don’t know about you guys but I’m having a difficult time with this. I’m doing the procedure right and I’m never getting a good launch. In fact most of the time as soon as I launch I hear a pop type noise in the engine end it just doesn’t take off correctly. The fastest I’ve gotten is 4.1 seconds 0 to 60 and I only did that once. The rest have been too horrible to report. And the stupid thing won’t let you do it several times in a row. There’s some sort of timer before you can engage launch control again. Anybody know what criteria or time you have to meet before you can engage launch control again?
Lol
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      11-26-2021, 08:05 AM   #39
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Lol
This post wins the Internet for most helpful and inspiring post ever. Congrats.
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      11-27-2021, 10:05 AM   #40
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Quote:
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Quote:
Originally Posted by cbertels View Post
Lol
This post wins the Internet for most helpful and inspiring post ever. Congrats.
Any time. Just hope you get that learners permit soon.
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      11-27-2021, 02:03 PM   #41
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Any time. Just hope you get that learners permit soon.
Or you could try and look at when the question was asked. That might be helpful. Youíll then notice that lots of people were asking back then. But I have to guess that thatís irrelevant to you because you enjoy just breaking peoples balls. No problem.
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      12-01-2021, 11:45 PM   #42
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Can you please share a link to the full technical manual for the G8X? Thanks in advance!

Quote:
Originally Posted by jonahk View Post
According to the technical manual, the frequency of launch control attempts is dictated by the transmission oil temp. (last line of the screen shot)

I know NCG80M3 did a bunch of attempts for one of his videos maybe he can chime in on that, too
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      12-04-2021, 01:54 AM   #43
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Ive brake boosted in my xDrive, and I can barely hold onto the wheel when it launches. It dumps you in the seat, hard.
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      12-28-2021, 01:23 AM   #44
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Did my first LC today in my M4CXÖhonest to god felt the blood rushing out of my face. What an absolute rocket.
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