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      08-25-2012, 02:30 PM   #1
ymdd
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launch control use too much!

so I just tried launch control for the first time and it was awesome, now my question is does using it to often harmful to the DCT?
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      08-25-2012, 04:29 PM   #2
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Quote:
Originally Posted by ymdd View Post
so I just tried launch control for the first time and it was awesome, now my question is does using it to often harmful to the DCT?
What do you think? What is your definition of too often? Like anything else moderation is the key.

If its a lease, who cares beat it to death and trade it in.

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      08-25-2012, 05:33 PM   #3
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I have used mine twice in 3 years - it is awesome.
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      08-25-2012, 07:12 PM   #4
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Is anyone else having trouble initiating launch control?


(Edit - explanation)
I'm new to the world of e89 but I have searched several times and I do believe I'm doing this correctly to no avail... Stop, Sport+, M1, both pedals... and nothing. Is there a certain order in which this needs to be performed? I thought (after reading some people's comments) that it was because "break-in" had not finished, however I reached 1100 miles today and tried it again before typing this message. Nada.
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      08-25-2012, 07:29 PM   #5
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Um..... We have launch control... Is this standard or a mod??
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      08-25-2012, 08:48 PM   #6
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Quote:
Originally Posted by daninsyd View Post
Um..... We have launch control... Is this standard or a mod??
yes indeed, if you have the 35i(is)/DCT you have launch control

1) sport+
2) traction turned off
3) sport shift (click left)
4) Manual 1
5) left foot on brake and right foot pegs the accelerator
6) computer will hold the RPM at 4k
7) checkered flag will come up between tach and spdmtr
8) let go of left foot/brake and keep accelerator pegged

I think that is the sequence - it takes much less time to do than it took me to write down for you.

Last edited by Vintage; 08-27-2012 at 09:34 AM.
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      08-25-2012, 08:50 PM   #7
oldkingdom
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Ahhh! Traction Control off... I think that's my missing step. Thanks!
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      08-26-2012, 07:34 PM   #8
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I think the official break in period is 1200 miles (it's in the manual, too lazy to look it up right now). If launch control doesn't work for you, you may need to drive another 100 miles or so.

Also, I think the car needs to be sufficiently warmed up.
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      08-26-2012, 07:35 PM   #9
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Quote:
Originally Posted by CeEl View Post
I think the official break in period is 1200 miles (it's in the manual, too lazy to look it up right now). If launch control doesn't work for you, you may need to drive another 100 miles or so.

Also, I think the car needs to be sufficiently warmed up.
Thank you... I tried it again today and still nothing. The irony is that I'm not the type to ever use it but the lack of ability to figure it out has been bugging me. LOL. Thanks, I'll check it out in another few clicks.
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      08-27-2012, 05:08 PM   #10
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Quote:
Originally Posted by Vintage
Quote:
Originally Posted by daninsyd View Post
Um..... We have launch control... Is this standard or a mod??
yes indeed, if you have the 35i(is)/DCT you have launch control

1) sport+
2) traction turned off
3) sport shift (click left)
4) Manual 1
5) left foot on brake and right foot pegs the accelerator
6) computer will hold the RPM at 4k
7) checkered flag will come up between tach and spdmtr
8) let go of left foot/brake and keep accelerator pegged

I think that is the sequence - it takes much less time to do than it took me to write down for you.
Oh boy...... Exciting!!!

Thanks so much!!
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      08-27-2012, 08:49 PM   #11
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Got it. 1200 must have been the key. Didn't realize how much rubber I'd lay down. A few more runs and I'll have a good excuse to replace those RFTs.

Thanks all.
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      08-30-2012, 05:26 PM   #12
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If its a lease, who cares beat it to death and trade it in.

CPO buyers take note!!
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      08-30-2012, 05:49 PM   #13
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One thing to take note of is that the throttle has to be pinned to the floor.
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      08-30-2012, 06:15 PM   #14
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Quote:
Originally Posted by e85sbm View Post
One thing to take note of is that the throttle has to be pinned to the floor.
Yeah, that may have been my problem too. All the way to kick-down territory.
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      08-30-2012, 08:02 PM   #15
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How can one replicate this on a 35i manual?
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      08-30-2012, 10:26 PM   #16
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I believe the car magazines use the term"side-stepping"
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      08-31-2012, 08:24 AM   #17
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Quote:
Originally Posted by HenryHank View Post
How can one replicate this on a 35i manual?
you can not; well, I guess you could try by holding the throttle at about 4k rpm and then dump/feather the clutch while working the throttle to simulate LC with the traction control turned off
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      08-31-2012, 03:37 PM   #18
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Launch control seems like it is just a 4k rpm clutch dump. Should be pretty easy to replicate in a manual.
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      08-31-2012, 04:00 PM   #19
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Quote:
Originally Posted by nicknaz View Post
Launch control seems like it is just a 4k rpm clutch dump. Should be pretty easy to replicate in a manual.
Just because I don't really know, when you say "clutch dump" it's going from no clutch to full clutch without hesitation? Like getting the motor up to 4k, and just totally release the clutch and hold on? Or is there more finesse to it? The other poster said something about "feathering" which I also don't understand. Thanks.
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      08-31-2012, 06:05 PM   #20
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Quote:
Originally Posted by HenryHank View Post
Just because I don't really know, when you say "clutch dump" it's going from no clutch to full clutch without hesitation? Like getting the motor up to 4k, and just totally release the clutch and hold on? Or is there more finesse to it? The other poster said something about "feathering" which I also don't understand. Thanks.
I think I meant maintaining the optimal rpm while engaging the clutch to achieve maximum acceleration. Sounds easy but when the computer does it with the LC you realize it is not, and probably not terrible good for clutch life either. Hence the reason I have only used LC twice.
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      09-01-2012, 10:00 AM   #21
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Doesn't work for my Australian car unfortunately.... Might be a US feature?
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      09-01-2012, 02:01 PM   #22
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Quote:
Originally Posted by HenryHank View Post
Just because I don't really know, when you say "clutch dump" it's going from no clutch to full clutch without hesitation? Like getting the motor up to 4k, and just totally release the clutch and hold on? Or is there more finesse to it? The other poster said something about "feathering" which I also don't understand. Thanks.
I think you mean full clutch to no clutch, but either way... it's a finesse thing.
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