Launch control

sDrive35i · 09-26-2011, 08:19 PM

1300 miles on the ODO, and yes it's DCT. I do as instructed in the manual put it into sport + with manual at gear 1, but the revs only go up to 1800 and no checkered flag.

Vintage · 09-26-2011, 08:32 PM

okay, Sport+, M1, left foot on brake, and right pegged on gas? I think that is right but I have only done it twice and it has been a while. Also, if the car is not completely warmed up and at normal running temperature it will not let you do launch control.

sDrive35i · 09-26-2011, 08:45 PM

Yep did all that. Is traction supposed to be on or off?

Memphis1 · 09-26-2011, 09:41 PM

you have to start with your foot on the brake, select sport +, slide the shifter to manual and push it forward to select 1st gear, slam the gas pedal (no mercy), wait for checkered flag and release brakes, hold on for dear life.

you have to have driven at least 6 miles and have the car operating at normal temp. otherwise just wait 'til maybe 2k miles on the odo.

Constant.S · 09-26-2011, 09:42 PM

What I do is go to Sport+, "downsift to M1" (give it an extra push to make sure the computer got it) and then apply foot on brake and very fast/hard on gas. Works everytime.

persian54 · 09-27-2011, 12:53 AM

Z4 LC is so much easier than M LC...

sport + m1 brake gas flag let go of brake go

parkstaff · 09-29-2011, 12:51 PM

Tried it yesterday on my 35is with 1300 miles....worked like a charm...nice feature!!
I got about it this way.

Left foot brake
Sport +
M1
Pinned Accelerator
released brake and flew off!

cjg · 09-29-2011, 01:29 PM

I don't believe you have to hold the brake down to activate the launch control. If you are in Sport+ and M1 you can just floor the accelerator past the kick-down switch and it will bring the revs up and the drop the clutch.

It does this every time in my car without having to holding the brake or getting the flag symbol.

///NWIE89 · 09-29-2011, 02:01 PM

i actually put mine in launch mode on accident one day i was messning a bit haha, all of a sudden checkered flag came on, and BOOM! off i went haha it was kinda funny cause i didnt expect it at first

Memphis1 · 09-29-2011, 02:52 PM

Quote:

Originally Posted by cjg

I don't believe you have to hold the brake down to activate the launch control. If you are in Sport+ and M1 you can just floor the accelerator past the kick-down switch and it will bring the revs up and the drop the clutch.

It does this every time in my car without having to holding the brake or getting the flag symbol.

You're not doing launch control, you're simply smashing the throttle. LC does everything for you.

cjg · 09-29-2011, 04:49 PM

Quote:

Originally Posted by Memphis1

You're not doing launch control, you're simply smashing the throttle. LC does everything for you.

Well if I floor the accelerator past the kick-down switch it revs to ~3000+ RPMs and drops the clutch. So is this normal for everyone else? If I floor the accelerator to just before the kick-down switch it engages the clutch off idle like a normal manual.

persian54 · 09-29-2011, 08:10 PM

Quote:

Originally Posted by cjg

Well if I floor the accelerator past the kick-down switch it revs to ~3000+ RPMs and drops the clutch. So is this normal for everyone else? If I floor the accelerator to just before the kick-down switch it engages the clutch off idle like a normal manual.

that's dropping the clutch IIRC

LC only happens if you see the checkered flag

My M3 does what you described, but it's not the same as LC

Nkc · 10-02-2011, 04:02 AM

Tried LC for the first time yesterday and was quite surprised with the amount of wheel spin and side waggle. I swear I was going at least 10-12 inches on both sides. This doesn't seem normal to me for a stock car with traction control. Only thing I have is 19inch wheel 255 in the rear. My 98 mz3 without traction wouldn't even waggle so much. Can someone show me a clip of a normal launch so I can see the difference?

jparnes1 · 10-02-2011, 09:54 AM

You're missing the point. In order to do LC, you have to turn off traction control.

Dr Stig 2 · 10-02-2011, 06:20 PM

Quote:

Originally Posted by Nkc

Tried LC for the first time yesterday and was quite surprised with the amount of wheel spin and side waggle. I swear I was going at least 10-12 inches on both sides. This doesn't seem normal to me for a stock car with traction control. Only thing I have is 19inch wheel 255 in the rear. My 98 mz3 without traction wouldn't even waggle so much. Can someone show me a clip of a normal launch so I can see the difference?

Your LC sounds just like my LC.
Too much wheel spin for my liking.

I dont think it is faster off the line than simply loading up the box and flooring it.
I think it is more of a party trick as it does all the change ups for you as you accelerate away.

Constant.S · 10-02-2011, 07:06 PM

The LC on the e89 will ONLY work well, and actually optimize 0-60, with an aftermarket TRUE LSD not that crappy differential BMW stocked our car with. The end. =)

ZheHbKa · 10-02-2011, 07:21 PM

Finally got over break in miles and tried it, worked from the first time

Nkc · 10-03-2011, 01:04 AM

Quote:

Originally Posted by Dr Stig 2

Your LC sounds just like my LC.
Too much wheel spin for my liking.

I dont think it is faster off the line than simply loading up the box and flooring it.
I think it is more of a party trick as it does all the change ups for you as you accelerate away.

Totally agree. Seems like a more show-offy kind of LC than a real effective one. Im sure I can just put it in sport mode, floor it, and get better results than the LC.

cdeslandes · 10-03-2011, 04:29 AM

My Launch Control is a skilled left foot

colinkh · 11-01-2011, 12:07 AM

I tried twice and just burned tires.

z4z4z4 · 11-01-2011, 03:18 PM

I've not tried LC, but the DCT drivers setting record 1/4 mile for the 1 series claim .2-.3seconds slower without LC. They have DSC OFF also. I was curious about use of LC/DSC OFF since the transmission shift speed program is fastest in Sport and Sport+ mode while shifting manually.
Here's a post on topic.
http://www.n54tech.com/forums/showth...t=14134&page=2

Memphis1 · 11-01-2011, 06:35 PM

Quote:

Originally Posted by colinkh

I tried twice and just burned tires.

Auto trannies don't have LC... you need the DCT tranny

09-26-2011, 08:19 PM	#1
sDrive35i Private 10 Rep 91 Posts Drives: 2011 Z4 sDrive35i Join Date: Jul 2011 Location: Brooklyn iTrader: (0)	Launch control 1300 miles on the ODO, and yes it's DCT. I do as instructed in the manual put it into sport + with manual at gear 1, but the revs only go up to 1800 and no checkered flag. __________________ 2011 BMW Z4 sDrive35i 2010 Nissan Maxima
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09-26-2011, 08:32 PM	#2
Vintage Colonel 378 Rep 2,588 Posts Drives: BMW G80 (MT), 718 Spyder Join Date: Aug 2009 Location: Austin, Texas iTrader: (0)	okay, Sport+, M1, left foot on brake, and right pegged on gas? I think that is right but I have only done it twice and it has been a while. Also, if the car is not completely warmed up and at normal running temperature it will not let you do launch control.
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09-26-2011, 08:45 PM	#3
sDrive35i Private 10 Rep 91 Posts Drives: 2011 Z4 sDrive35i Join Date: Jul 2011 Location: Brooklyn iTrader: (0)	Yep did all that. Is traction supposed to be on or off? __________________ 2011 BMW Z4 sDrive35i 2010 Nissan Maxima
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09-26-2011, 09:41 PM	#4
Memphis1 Lieutenant Colonel 89 Rep 1,838 Posts Drives: Z4 SDrive 35i Join Date: Oct 2009 Location: CT iTrader: (0)	you have to start with your foot on the brake, select sport +, slide the shifter to manual and push it forward to select 1st gear, slam the gas pedal (no mercy), wait for checkered flag and release brakes, hold on for dear life. you have to have driven at least 6 miles and have the car operating at normal temp. otherwise just wait 'til maybe 2k miles on the odo. __________________
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09-26-2011, 09:42 PM	#5
Constant.S Resistance is futile... 54 Rep 640 Posts Drives: BMW Z4 E89(N54) Join Date: Nov 2010 Location: Greece/Canada iTrader: (0)	What I do is go to Sport+, "downsift to M1" (give it an extra push to make sure the computer got it) and then apply foot on brake and very fast/hard on gas. Works everytime. __________________ An ounce of performance is worth pounds of promises.
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09-27-2011, 12:53 AM	#6
persian54 Lieutenant General 922 Rep 15,818 Posts Drives: M760/G83M4 Join Date: Jun 2009 Location: The Valley, SoCal iTrader: (298)	Z4 LC is so much easier than M LC... sport + m1 brake gas flag let go of brake go __________________ From E93 335i to E89 Z4 to E93 M3/E89 Z4 to E350/SL550
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09-29-2011, 12:51 PM	#7
parkstaff PARKSTAFF 32 Rep 204 Posts Drives: 2008 135i Vert / 2011 Z435is Join Date: Apr 2009 Location: Raleigh, NC iTrader: (0)	Tried it yesterday on my 35is with 1300 miles....worked like a charm...nice feature!! I got about it this way. Left foot brake Sport + M1 Pinned Accelerator released brake and flew off!
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09-29-2011, 01:29 PM	#8
cjg Boosted 5 Rep 102 Posts Drives: 95 M3, 11 Z4 35is Join Date: Jul 2008 Location: Albuquerque, NM iTrader: (0)	I don't believe you have to hold the brake down to activate the launch control. If you are in Sport+ and M1 you can just floor the accelerator past the kick-down switch and it will bring the revs up and the drop the clutch. It does this every time in my car without having to holding the brake or getting the flag symbol. __________________ 95 Dakar M3 AA Supercharged \|\| TC Kline Koni \|\| Prolumen HID \|\| Stromung 11 Space Gray Z4 35is \|\| Walnut Leather
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09-29-2011, 02:01 PM	#9
///NWIE89 Private 18 Rep 75 Posts Drives: 2011 Z4 sDrive35i Join Date: Jul 2011 Location: Crown Point, IN iTrader: (0)	i actually put mine in launch mode on accident one day i was messning a bit haha, all of a sudden checkered flag came on, and BOOM! off i went haha it was kinda funny cause i didnt expect it at first
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10-02-2011, 04:02 AM	#13
Nkc NOOB 1601 Rep 1,356 Posts Drives: Cars Join Date: Oct 2011 Location: @BMWclassicdivision iTrader: (0)	Tried LC for the first time yesterday and was quite surprised with the amount of wheel spin and side waggle. I swear I was going at least 10-12 inches on both sides. This doesn't seem normal to me for a stock car with traction control. Only thing I have is 19inch wheel 255 in the rear. My 98 mz3 without traction wouldn't even waggle so much. Can someone show me a clip of a normal launch so I can see the difference?
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10-02-2011, 09:54 AM	#14
jparnes1 Colonel 242 Rep 2,387 Posts Drives: 2016 340i, 2012 Z4 35i Join Date: Jan 2010 Location: NY iTrader: (1)	You're missing the point. In order to do LC, you have to turn off traction control. __________________ 2016 340i XDrive, EBII/black, 6 MT, M Sport, Track Handling, Cold Weather, Tech, Lighting, Driver Assistance Plus. 2012 Z4 35i, ED 2/24/2012, Melbourne Red Metallic, Black Leather, Carbon Trim, 6MT, M Sport, CW, PP, PS, NAV, CA.
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10-02-2011, 07:06 PM	#16
Constant.S Resistance is futile... 54 Rep 640 Posts Drives: BMW Z4 E89(N54) Join Date: Nov 2010 Location: Greece/Canada iTrader: (0)	The LC on the e89 will ONLY work well, and actually optimize 0-60, with an aftermarket TRUE LSD not that crappy differential BMW stocked our car with. The end. =) __________________ An ounce of performance is worth pounds of promises.
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10-02-2011, 07:21 PM	#17
ZheHbKa Lieutenant Colonel 77 Rep 1,793 Posts Drives: the Wind Join Date: Jul 2007 Location: NYC iTrader: (0) Garage List 2014 BMW 335 Xi [10.00]	Finally got over break in miles and tried it, worked from the first time __________________ 2014 F30 335 X-Drive \| 6-MT \| Alpine White/Coral Red \| ZMM ZDH ZDA \|
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10-03-2011, 04:29 AM	#19
cdeslandes Captain 27 Rep 676 Posts Drives: 2010 Z4 s35i Join Date: Apr 2010 Location: Connecticut iTrader: (0) Garage List 2014 Jeep Wrangler ... [0.00] 2013 Volvo XC90 [0.00] 2010 BMW Z4 sDrive35i [8.67]	My Launch Control is a skilled left foot __________________ 2010 BMW Z4 s35i 2014 Jeep Wrangler Rubicon 2013 Volvo XC90
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11-01-2011, 12:07 AM	#20
colinkh New Member 0 Rep 15 Posts Drives: 2011 Z4 3.0 Sdrive Space Grey Join Date: Oct 2011 Location: Los Angeles iTrader: (0)	Does lc work with 3.0 auto? I tried twice and just burned tires.
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11-01-2011, 03:18 PM	#21
z4z4z4 Lieutenant 45 Rep 547 Posts Drives: 2002 M3 Join Date: Mar 2010 Location: mild mediterranean breezes iTrader: (1)	I've not tried LC, but the DCT drivers setting record 1/4 mile for the 1 series claim .2-.3seconds slower without LC. They have DSC OFF also. I was curious about use of LC/DSC OFF since the transmission shift speed program is fastest in Sport and Sport+ mode while shifting manually. Here's a post on topic. http://www.n54tech.com/forums/showth...t=14134&page=2 __________________ Sold 2011 Z4, kept 2002 M3 PM for various e89 parts 4sale.
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