Best launching technique for dragstrip?

335M_PR · 10-24-2012, 12:38 PM

I've got an AT N54 E92 coupe with the basics and JB4. I will be taking the car to the dragstrip for the first time shortly. What are your recommendations to obtain the best ET's? I've read about launching at 2 nd gear, do you recommend it? Also, what is the best setting for the DTC? Any input will be appreciated.

M3_Dylan · 10-24-2012, 07:09 PM

1. Manually put the car in M2
2. Turn DTC to fully off position
3. Hold brake and hold rev's at 2000
4. Release brake
5. Push the gas all the way to the point right before the kick down switch and shift at 6,200 RPMS
6. Enjoy the ride

335M_PR · 10-28-2012, 07:25 PM

Thanks for the feedback spoiledxjoker. Does everybody agree with him? Also, another noob question, what happens when you push the DTC button and the orange indicator light turns on. Does it free up the car a bit? I know that if you leave it pushed for a couple of seconds the DTC gets turned off.

Thanks to all!

raceyBMW · 10-29-2012, 04:32 PM

Yes, if you are tuned, that is the way to go. It will probably help doing something to prevent hitting the kickdown, it is hard not to do on a launch.

MasterWang · 12-03-2012, 05:56 PM

JB4 and DCI only with 40% e85 mix. If I use the method mentioned above (DS in M2, brakeboost then launch), I get zero traction and pretty much get no where. I can feather the throttle to prevent wheelspin, but I can't get anything below 2.4 60' time :/

Rival · 12-04-2012, 11:14 AM

Quote:

Originally Posted by MasterWang

JB4 and DCI only with 40% e85 mix. If I use the method mentioned above (DS in M2, brakeboost then launch), I get zero traction and pretty much get no where. I can feather the throttle to prevent wheelspin, but I can't get anything below 2.4 60' time :/

than all you need is seat time.

MasterWang · 12-05-2012, 10:13 AM

Quote:

Originally Posted by Rival

than all you need is seat time.

I have successfully launched many rwd cars. I may not be the absolute best at launching, but I can confidently say that I'm not bad either haha. I'm assuming it is my summer tires not getting traction in colder weather :/

sickem · 12-05-2012, 01:01 PM

Launching as was mentioned above I've been able to do 2.0x 60' but others on here with more experience/practice can get down at least another tenth. If I had a 1.8x 60' I'd be low 12s.

you could also experiment with the technique in the thread below, post #14:

http://www.e90post.com/forums/showthread.php?t=767494

Amini77 · 12-11-2012, 01:36 PM

Quote:

Originally Posted by Dylan335i

1. Manually put the car in M2
2. Turn DTC to fully off position
3. Hold brake and hold rev's at 2000
4. Release brake
5. Push the gas all the way to the point right before the kick down switch and shift at 6,200 RPMS
6. Enjoy the ride

Why at M2? Will the same work for 330 guys, I have Xi.. so same thing or what? Thanks.

M3_Dylan · 12-11-2012, 11:17 PM

Quote:

Originally Posted by Amini77

Why at M2? Will the same work for 330 guys, I have Xi.. so same thing or what? Thanks.

Because M1 all yours tires do is spin so the gear is worthless

If your not having traction problems of the line then feel free to start in M1 but if you are I would try M2 should help you out

Amini77 · 12-12-2012, 12:06 AM

Quote:

Originally Posted by Dylan335i

Because M1 all yours tires do is spin so the gear is worthless

If your not having traction problems of the line then feel free to start in M1 but if you are I would try M2 should help you out

LOL!...M1 it is for me....buddy I got a 330..and AWD at that lmao there isn't going to be any wheel spin happening anytime ever.

sickem · 12-12-2012, 07:03 AM

Quote:

Originally Posted by Amini77

LOL!...M1 it is for me....buddy I got a 330..and AWD at that lmao there isn't going to be any wheel spin happening anytime ever.

N52? Yes, you can start in M0.

EJ_3 · 12-20-2012, 03:39 PM

Not trying to thread jack, but what about launching techniques for 6M/T? I just didn't see the point in creating the same thread again.

10-24-2012, 12:38 PM	#1
335M_PR Got Boost? 7 Rep 55 Posts Drives: 2008 BMW E93 M3 Join Date: Oct 2011 Location: San Juan, PR iTrader: (0)	Best launching technique for dragstrip? I've got an AT N54 E92 coupe with the basics and JB4. I will be taking the car to the dragstrip for the first time shortly. What are your recommendations to obtain the best ET's? I've read about launching at 2 nd gear, do you recommend it? Also, what is the best setting for the DTC? Any input will be appreciated. __________________ 09' N54 335I Alpine White w/Coral Red Interior and Brushed Aluminum Trim/Sport Premium Package/Comfort Access/6 AT Steptronic/JB4 G5/BMS DCI/AR 3" Downpipes with Race CAT/ER Charge Pipe with Synapse BOV/2nd CAT Delete/M Tech Front Lip/M3 Rear Lip Spoiler
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10-24-2012, 07:09 PM	#2
M3_Dylan Lieutenant 32 Rep 520 Posts Drives: 2008 BMW M3 Join Date: Sep 2011 Location: Orlando iTrader: (5)	1. Manually put the car in M2 2. Turn DTC to fully off position 3. Hold brake and hold rev's at 2000 4. Release brake 5. Push the gas all the way to the point right before the kick down switch and shift at 6,200 RPMS 6. Enjoy the ride __________________ KW V3's / AA Stage 2 Supercharger / Catless Mid-pipes / AA Mufflers / Apex Arc-8's / PFC 09's
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10-28-2012, 07:25 PM	#3
335M_PR Got Boost? 7 Rep 55 Posts Drives: 2008 BMW E93 M3 Join Date: Oct 2011 Location: San Juan, PR iTrader: (0)	Thanks for the feedback spoiledxjoker. Does everybody agree with him? Also, another noob question, what happens when you push the DTC button and the orange indicator light turns on. Does it free up the car a bit? I know that if you leave it pushed for a couple of seconds the DTC gets turned off. Thanks to all! __________________ 09' N54 335I Alpine White w/Coral Red Interior and Brushed Aluminum Trim/Sport Premium Package/Comfort Access/6 AT Steptronic/JB4 G5/BMS DCI/AR 3" Downpipes with Race CAT/ER Charge Pipe with Synapse BOV/2nd CAT Delete/M Tech Front Lip/M3 Rear Lip Spoiler
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10-29-2012, 04:32 PM	#4
raceyBMW king of the hills 110 Rep 2,923 Posts Drives: 2011 M3 w/ESS55, 2001 540i/6 Join Date: Dec 2006 Location: Arvada, CO iTrader: (1) Garage List 2001 BMW 540i/6 [8.17] 1994 530i [9.00] 2007 335i Coupe [8.37]	Yes, if you are tuned, that is the way to go. It will probably help doing something to prevent hitting the kickdown, it is hard not to do on a launch.
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12-03-2012, 05:56 PM	#5
MasterWang Captain 137 Rep 926 Posts Drives: F06 M6 Join Date: Jan 2011 Location: Overland Park, KS iTrader: (2)	JB4 and DCI only with 40% e85 mix. If I use the method mentioned above (DS in M2, brakeboost then launch), I get zero traction and pretty much get no where. I can feather the throttle to prevent wheelspin, but I can't get anything below 2.4 60' time :/
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12-05-2012, 01:01 PM	#8
sickem Freude am fahren 72 Rep 1,968 Posts Drives: E90 N54 Join Date: Mar 2010 Location: Doylestown, PA iTrader: (4) Garage List 2008 BMW 335i E90 [6.50]	Launching as was mentioned above I've been able to do 2.0x 60' but others on here with more experience/practice can get down at least another tenth. If I had a 1.8x 60' I'd be low 12s. you could also experiment with the technique in the thread below, post #14: http://www.e90post.com/forums/showthread.php?t=767494 __________________ Cobb E40 PROtune by Jake@PTF/RR catless DPs/aFe DCI/ETS 5" FMIC/ER CP/Forge DVs/Alpina B3 TCU flash/BMW Perf. Exhaust./BMW Performance Style 313s/M-Tech Rear
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12-20-2012, 03:39 PM	#13
EJ_3 Colonel 374 Rep 2,838 Posts Drives: e92 335i, e34 525i & e60 530i Join Date: Aug 2011 Location: N Las Vegas iTrader: (13) Garage List 2007 BMW 335i [8.34] 2016 Ram 1500 Sport [8.00] 1994 BMW 525i [10.00] 2007 BMW 530i [8.66]	Not trying to thread jack, but what about launching techniques for 6M/T? I just didn't see the point in creating the same thread again. __________________ click here for mods
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