Best launching technique for dragstrip? - BMW 3-Series (E90 E92) Forum

335M_PR · 10-24-2012, 11:38 AM

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.

Dylan335i · 10-24-2012, 06:09 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, 06:25 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, 03:32 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.

Dylan335i · 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.

Manny_World · 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, 11:38 AM	#1
335M_PR Got Boost? Drives: 2009 BMW 335i Coupe Join Date: Oct 2011 Location: San Juan, PR Posts: 37 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 with Coral Red Interior and Brushed Aluminum Trim/Sport Premium Package/Comfort Access/6 AT Steptronic/JB4/BMS DCI/AR 3" Downpipes with CAT/2nd CAT Delete/M Tech Front Lip/M3 Rear Lip Spoiler
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10-24-2012, 06:09 PM	#2
Dylan335i First Lieutenant Drives: 2007 BMW 335i Join Date: Sep 2011 Location: Orlando Posts: 398 iTrader: (3)	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 __________________ JB4 G5 / Walboro LPFP/ BMS Flash/ M3 Rep Front Bumper / OSS Headlights / BC Coilovers / 5" ETS FMIC / 3" VRSF Downpipes / AA Charge Pipe & BOV / BMS DCI / LCI Tails / CSL Trunk / CF Interior / CF Emblems / Cyba Air Scoops / 15% Tints / 5k Fogs / EBC RedStuff Pads / Drilled & Slotted Rotors / ECS SS Brake Lines

10-28-2012, 06:25 PM	#3
335M_PR Got Boost? Drives: 2009 BMW 335i Coupe Join Date: Oct 2011 Location: San Juan, PR Posts: 37 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 with Coral Red Interior and Brushed Aluminum Trim/Sport Premium Package/Comfort Access/6 AT Steptronic/JB4/BMS DCI/AR 3" Downpipes with CAT/2nd CAT Delete/M Tech Front Lip/M3 Rear Lip Spoiler

12-05-2012, 01:01 PM	#8
sickem Freude am fahren Drives: in the fast lane Join Date: Mar 2010 Location: People's Republic of New Jersey Posts: 1,670 iTrader: (4) Garage List 2008 BMW 335i E90 [3.10]	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 AP/RR catless DPs/aFe DCI/ETS 5" FMIC/Alpina B3 TCU flash/BMW Performance Wheels

12-20-2012, 03:39 PM	#13
Manny_World EuroSquad Drives: e92 335i, e34 525i & e60 530i Join Date: Aug 2011 Location: North Las Vegas Posts: 1,754 iTrader: (10) Garage List 2007 BMW 335i [4.00] 2007 BMW 530i [4.33] 1994 BMW 525i [0.00]	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. __________________ Cobb\|Macht Schnell DP & Stud Conversion Kit\|ER FMIC & CP\|aFe DCI\|HKS SSQV 4 BOV\|Muffler Delete\| Bilstein PSS9 coilovers\|StopTech Power Slotted Rotors\| StopTech Ceramic Pads\| StopTech SS Lines\|BMW Perfor. SSK\|HRE 840\|OSS Designs\|CF Vented Hood\|M3 Spoiler\|Cusco Strut Bar\| MagnaFlow 4in Tips\|ACS Pedals\|All weather Mats \|Muteki Bolts\| M3 Hood Struts\|BMW All Weather Mats

10-29-2012, 03:32 PM	#4
raceyBMW king of the hills Drives: 335i coupe Join Date: Dec 2006 Location: Denver, CO Posts: 2,462 iTrader: (1) Garage List 1994 530i [4.25] 2007 335i Coupe [4.07]	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.

12-03-2012, 05:56 PM	#5
MasterWang Second Lieutenant Drives: 335i e92 Join Date: Jan 2011 Location: Lawrence, KS Posts: 221 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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