Launch without LC

billypopo · 08-07-2018, 11:40 PM

Hi guys,

New DCT owner, have tried everything from comfort to sport +, sequential or auto, DSC off, DTC or DSC on, and here's the thing :

Other than launch control (DSC off; press and hold, sequential mode), the only other way I found to start 'fast' from standstill is in the same mode but without pressing on the brake to activate LC. You just smash the throttle, which will raise rpm until it dumps the clutch and leave rubber behind. It's basically a LC without the limited spin, limited rpm and autoshift from 1 to 2. It's too much for what I want.

Other than that, anything else (pretty much any possible combination of manual/auto/sport/DTC) I've tried leads to a pretty long lag before I feel the car actually wants to go forward 'fast', like if there was a delay for the clutch to engage and/or if it wasn't sure if it should go in creep mode or engage. What do you guys do if you just want to start fast from a red light? So far toyotas are faster than I at a start...wtf.

Thanks!

David1 · 08-08-2018, 10:36 AM

That's all you can do. You cant brake torque it either. Just mash the throttle. I also just drove a Cayman GTS with the dual clutch and it works the same way. Either launch control or just floor it. You cant brake torque the Porsche either.

billypopo · 08-08-2018, 09:47 PM

Thanks David. Other than for the mode i've described above (all nannies off + sequential), you're saying the delay for the clutch to engage is normal?

David1 · 08-08-2018, 11:37 PM

Mine does not raise the rpm's it just goes. Your doing something wrong if the rpms rise before it goes. If it is doing that, you are in LC.

M-Supra · 08-09-2018, 03:29 PM

DSC off Auto Mode, just mat the go pedal

M-Supra · 08-09-2018, 03:32 PM

Quote:

Originally Posted by David1

Mine does not raise the rpm's it just goes. Your doing something wrong if the rpms rise before it goes. If it is doing that, you are in LC.

With DSC off in Auto (not sequential) your car should rev up and dump clutches for a burnout when you go full throttle quickly from
a dead stop.

David1 · 08-09-2018, 08:00 PM

Quote:

Originally Posted by M-Supra

DCT off Auto Mode, just mat the go pedal

I am always in sport plus or traction mode. I am on euro MDM. Never dumps the clutch in auto or sequential from stop when floored. Just hooks up and rockets away. Just the right amount of wheel spin through 2nd and into 3rd. You must have all stability off then.

M-Supra · 08-09-2018, 08:58 PM

Quote:

Originally Posted by David1

I am always in sport plus or traction mode. I am on euro MDM. Never dumps the clutch in auto or sequential from stop when floored. Just hooks up and rockets away. Just the right amount of wheel spin through 2nd and into 3rd. You must have all stability off then.

Correct, DSC completely disabled, hold button down for approximately 5-7 seconds, Transmission in Auto mode, mat throttle, engine revs to approximately 4K and dumps DCT clutches, voila "Burnout" Mode

P.S. I meant to say DSC off, not DCT off in my previous posts, sorry for any confusion on my part.

David1 · 08-10-2018, 08:38 AM

Yah, I get that but what I really want to do is just brake torque it a little.

ICantDrive4Sht · 08-10-2018, 10:27 AM

Quote:

Originally Posted by M-Supra

Correct, DSC completely disabled, hold button down for approximately 5-7 seconds, Transmission in Auto mode, mat throttle, engine revs to approximately 4K and dumps DCT clutches, voila "Burnout" Mode

P.S. I meant to say DSC off, not DCT off in my previous posts, sorry for any confusion on my part.

What is "mat throttle"? I`ve had the car to go in burnout mode like 2 times by accident, but can never really recreate it.

cecaa850 · 08-10-2018, 10:54 AM

Quote:

Originally Posted by 6erLover

What is "mat throttle"? I`ve had the car to go in burnout mode like 2 times by accident, but can never really recreate it.

I'm guessing he means for you to put the accelerator pedal on the mat, or all the way down.

cecaa850 · 08-10-2018, 10:55 AM

Quote:

Originally Posted by M-Supra

Correct, DSC completely disabled, hold button down for approximately 5-7 seconds, Transmission in Auto mode, mat throttle, engine revs to approximately 4K and dumps DCT clutches, voila "Burnout" Mode

P.S. I meant to say DSC off, not DCT off in my previous posts, sorry for any confusion on my part.

Does launch mode prevent tire spin?

billypopo · 08-10-2018, 11:50 AM

Quote:

Originally Posted by M-Supra

Quote:

Originally Posted by David1

I am always in sport plus or traction mode. I am on euro MDM. Never dumps the clutch in auto or sequential from stop when floored. Just hooks up and rockets away. Just the right amount of wheel spin through 2nd and into 3rd. You must have all stability off then.

Correct, DSC completely disabled, hold button down for approximately 5-7 seconds, Transmission in Auto mode, mat throttle, engine revs to approximately 4K and dumps DCT clutches, voila "Burnout" Mode

P.S. I meant to say DSC off, not DCT off in my previous posts, sorry for any confusion on my part.

That works for me only if i'm in manual mode (sequential).

Other than that, how do you usually start fast without burning your tires

?

ICantDrive4Sht · 08-10-2018, 03:44 PM

Quote:

Originally Posted by cecaa850

I'm guessing he means for you to put the accelerator pedal on the mat, or all the way down.

Ahh, got it thx

M-Supra · 08-10-2018, 09:07 PM

Quote:

Originally Posted by cecaa850

Does launch mode prevent tire spin?

Correct, Launch Control Mode (DSC off, gear selector in Sequential Mode) limits wheel spin and gives the quickest acceleration, transmission will shift through gears all by itself as long as throttle stays on the carpet (acts like it's in Auto Mode during launch control UNTIL you lift throttle).

M-Supra · 08-10-2018, 09:11 PM

Quote:

Originally Posted by billypopo

That works for me only if i'm in manual mode (sequential).

Other than that, how do you usually start fast without burning your tires

?

Launch Control, Sport, Sport+, MDM (traction) in either Auto or Sequential.

You can only burn the tires with DSC off in either Auto or Sequential.

cecaa850 · 08-10-2018, 10:32 PM

Quote:

Originally Posted by M-Supra

Correct, Launch Control Mode (DSC off, gear selector in Sequential Mode) limits wheel spin and gives the quickest acceleration, transmission will shift through gears all by itself as long as throttle stays on the carpet (acts like it's in Auto Mode during launch control UNTIL you lift throttle).

Got it, thanks.

horsepower_and_hounds · 08-11-2018, 06:02 AM

Yea known in the F80/82 world as "smokey burn out mode"

So for those that hit the strip......what is the best launch? LC results in constant spinning until hook update in 2nd then spin at the start of 3rd. If you do the burn out mode it is prolly worse. Have not tried that. I wonder if starting in 2nd or maybe just get it going then mash it.

Lodi · 08-11-2018, 10:32 AM

Quote:

Originally Posted by m2ruder

Yea known in the F80/82 world as "smokey burn out mode"

So for those that hit the strip......what is the best launch? LC results in constant spinning until hook update in 2nd then spin at the start of 3rd. If you do the burn out mode it is prolly worse. Have not tried that. I wonder if starting in 2nd or maybe just get it going then mash it.

Strange, my LC only allows very limited spinning and definitely results in my fastest starts, but have you tried lowering the LC rpm via cruise control before actually launching the car?

cecaa850 · 08-11-2018, 10:38 AM

Quote:

Originally Posted by Lodi

Strange, my LC only allows very limited spinning and definitely results in my fastest starts, but have you tried lowering the LC rpm via cruise control before actually launching the car?

What rpm is yours set at?

Lodi · 08-11-2018, 10:51 AM

Quote:

Originally Posted by cecaa850

Quote:

Originally Posted by Lodi

Strange, my LC only allows very limited spinning and definitely results in my fastest starts, but have you tried lowering the LC rpm via cruise control before actually launching the car?

What rpm is yours set at?

You can change it once LC is engaged (meaning foot on brake, gas pedal to the floor, flag showing on dash). Anywhere from 2400-4000 if I remember correctly. When I first engage LC the rpm hits 3600 I believe, toggling the small cruise control adjuster raises or lowers the rpm by 100rpm per click.

08-07-2018, 11:40 PM	#1
billypopo Private First Class 67 Rep 127 Posts Drives: Bmw 435i GC, glacier silver Join Date: Apr 2014 Location: Quebec, Canada iTrader: (0)	Launch without LC Hi guys, New DCT owner, have tried everything from comfort to sport +, sequential or auto, DSC off, DTC or DSC on, and here's the thing : Other than launch control (DSC off; press and hold, sequential mode), the only other way I found to start 'fast' from standstill is in the same mode but without pressing on the brake to activate LC. You just smash the throttle, which will raise rpm until it dumps the clutch and leave rubber behind. It's basically a LC without the limited spin, limited rpm and autoshift from 1 to 2. It's too much for what I want. Other than that, anything else (pretty much any possible combination of manual/auto/sport/DTC) I've tried leads to a pretty long lag before I feel the car actually wants to go forward 'fast', like if there was a delay for the clutch to engage and/or if it wasn't sure if it should go in creep mode or engage. What do you guys do if you just want to start fast from a red light? So far toyotas are faster than I at a start...wtf. Thanks!
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08-08-2018, 10:36 AM	#2
David1 Brigadier General 814 Rep 3,953 Posts Drives: 09 E92 09 X5 Join Date: Mar 2007 Location: Columbus, OH iTrader: (1)	That's all you can do. You cant brake torque it either. Just mash the throttle. I also just drove a Cayman GTS with the dual clutch and it works the same way. Either launch control or just floor it. You cant brake torque the Porsche either. __________________ 2021 M2 Comp Sunset Orange \|Black with orange Stitching Dakota Leather\|Executive Pkg\|DCT
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08-08-2018, 09:47 PM	#3
billypopo Private First Class 67 Rep 127 Posts Drives: Bmw 435i GC, glacier silver Join Date: Apr 2014 Location: Quebec, Canada iTrader: (0)	Thanks David. Other than for the mode i've described above (all nannies off + sequential), you're saying the delay for the clutch to engage is normal?
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08-08-2018, 11:37 PM	#4
David1 Brigadier General 814 Rep 3,953 Posts Drives: 09 E92 09 X5 Join Date: Mar 2007 Location: Columbus, OH iTrader: (1)	Mine does not raise the rpm's it just goes. Your doing something wrong if the rpms rise before it goes. If it is doing that, you are in LC. __________________ 2021 M2 Comp Sunset Orange \|Black with orange Stitching Dakota Leather\|Executive Pkg\|DCT
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08-09-2018, 03:29 PM	#5
M-Supra First Lieutenant 395 Rep 328 Posts Drives: 2018 M2, 2JZ-M5 Join Date: Mar 2010 Location: Atlanta iTrader: (0)	DSC off Auto Mode, just mat the go pedal Last edited by M-Supra; 08-09-2018 at 08:56 PM..
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08-10-2018, 08:38 AM	#9
David1 Brigadier General 814 Rep 3,953 Posts Drives: 09 E92 09 X5 Join Date: Mar 2007 Location: Columbus, OH iTrader: (1)	Yah, I get that but what I really want to do is just brake torque it a little. __________________ 2021 M2 Comp Sunset Orange \|Black with orange Stitching Dakota Leather\|Executive Pkg\|DCT
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08-11-2018, 06:02 AM	#18
horsepower_and_hounds Brigadier General 1836 Rep 4,203 Posts Drives: BMW Join Date: Aug 2012 Location: USA iTrader: (9)	Yea known in the F80/82 world as "smokey burn out mode" So for those that hit the strip......what is the best launch? LC results in constant spinning until hook update in 2nd then spin at the start of 3rd. If you do the burn out mode it is prolly worse. Have not tried that. I wonder if starting in 2nd or maybe just get it going then mash it.
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