Best way to launch auto 335i?

rondocap · 09-16-2012, 07:26 PM

I've been trying to get 0-60 numbers an Dyno info using dynolicious, but I may be launching Wong. Average 0-60 time is 5.69 with 249 whp?

I have a 2008 rear wheel 335i auto with the BMW ppk performance tune.

How should I launch? Traction on or off? Sport or manual mode? Brake boost?

E90Company · 09-16-2012, 07:35 PM

Traction all the way off, Manual 2nd gear, brake boost to 1500-2000RPM, release brake and floor gas.

Affify11 · 09-16-2012, 07:39 PM

does the same go for 330i auto? usually i use 1st gear instead of 2nd

cmyk · 09-16-2012, 07:49 PM

Quote:

Originally Posted by E90Company

Traction all the way off, Manual 2nd gear, brake boost to 1500-2000RPM, release brake and floor gas.

This. /thread

kboss335 · 09-16-2012, 07:59 PM

Whenever I try to launch my car in second gear on the AT, I build about 2k rpm, release the brake, get lots wheel spin and then it automatically downshifts into first resulting in a horrible 60' at the drag strip, does this happen to anyone else? I am FBO though....

BQTuning · 09-16-2012, 08:28 PM

Quote:

Originally Posted by kboss335

Whenever I try to launch my car in second gear on the AT, I build about 2k rpm, release the brake, get lots wheel spin and then it automatically downshifts into first resulting in a horrible 60' at the drag strip, does this happen to anyone else? I am FBO though....

If your pressing your gas peddle down past the kick down then that is why its downshifting

SaMaster14 · 09-16-2012, 08:32 PM

Quote:

Originally Posted by E90Company

Traction all the way off, Manual 2nd gear, brake boost to 1500-2000RPM, release brake and floor gas.

I do this, but usually in 1st. I also try to get as little wheelspin. I don't mash the accelerator, but almost ease into it it.

Here are a few runs I did. Times aren't 100% accurate:

VNeBLOB42 · 09-16-2012, 09:34 PM

Quote:

Originally Posted by kboss335

Whenever I try to launch my car in second gear on the AT, I build about 2k rpm, release the brake, get lots wheel spin and then it automatically downshifts into first resulting in a horrible 60' at the drag strip, does this happen to anyone else? I am FBO though....

I never had that happen.. Interesting. But I don't punch it but aggressively ease through the throttle so I don't smoke em.

I launch in 2nd and went from average 5.5 to 4.6 S1 sport

My best was 4.4 S1 Agg.

My 60' are above 2.2 still needs some work.

But this was using the COBB, never been to the drag.

username604 · 09-16-2012, 11:20 PM

Is it safe to repetitively launch the car by holding gas + brake?

Bimmerlover76 · 09-17-2012, 01:02 AM

If you're launching Wong, does Wang know?! Maybe Billabong and "Ding. Dong. The witch is dead." can help.

manutdas11 · 09-17-2012, 01:07 AM

Quote:

Originally Posted by Bimmerlover76

If you're launching Wong, does Wang know?! Maybe Billabong and "Ding. Dong. The witch is dead." can help.

Speedwagon · 09-17-2012, 01:32 AM

Quote:

Originally Posted by Bimmerlover76

If you're launching Wong, does Wang know?! Maybe Billabong and "Ding. Dong. The witch is dead." can help.

ihc95 · 09-17-2012, 08:29 AM

FYI guys brake boosting is very bad for the tranny. And it doesnt help that most of us are running with well over the 332 ft/lbs of torque this Auto is rated at. Ive never done it and I dont plan to. The reason the magazines do it is because its not their car and they dont care about it. Thats why you see them with sub 5 sec 0-60 times...

pits200 · 09-17-2012, 10:43 AM

Quote:

Originally Posted by ihc95

FYI guys brake boosting is very bad for the tranny. And it doesnt help that most of us are running with well over the 332 ft/lbs of torque this Auto is rated at. Ive never done it and I dont plan to. The reason the magazines do it is because its not their car and they dont care about it. Thats why you see them with sub 5 sec 0-60 times...

Locking torque converter so the tranny doesn't see 332ft/lbs of torque.

Now am I saying its good for the transmission, no. But many people take these cars to the strip with hundreds of runs on the auto transmission and I haven't heard of many failures.

Knock on wood.

rondocap · 09-18-2012, 08:29 PM

I tried this, and got slightly better results. Traction off and M2. Got 5.49 0-60, and 251HP. I still think I should have a little more whp, since I have the PPK. I was looking for at least 270.

I think I may get a better time launching with M1 - I'll try it. The car does bog down a bit at first, which I assume are the wheels spinning - so if I can minimize that, I'll get a better time.

E90Company · 09-18-2012, 08:54 PM

Quote:

Originally Posted by ihc95

FYI guys brake boosting is very bad for the tranny. And it doesnt help that most of us are running with well over the 332 ft/lbs of torque this Auto is rated at. Ive never done it and I dont plan to. The reason the magazines do it is because its not their car and they dont care about it. Thats why you see them with sub 5 sec 0-60 times...

Lol. Brake boosting will cause more wear and tear on the tranny components for sure, but it's not "very bad for the tranny." It can handle it. People launch all the time at the track with the auto running meth/upgraded turbos/E85, and have been doing it for a LONG time, some with up to 100k hard miles. A Stage 1 COBB tune is hardly pushing numbers where you have to worry about the auto's limits. Look at the Dinan tunes for example pushing COBB Stg1 numbers. Dinan is one of the most conservative tunes we can run and they approve of it

See5 · 09-18-2012, 09:02 PM

Quote:

Originally Posted by E90Company

Lol. Brake boosting will cause more wear and tear on the tranny components for sure, but it's not "very bad for the tranny." It can handle it. People launch all the time at the track with the auto running meth/upgraded turbos/E85, and have been doing it for a LONG time, some with up to 100k hard miles. A Stage 1 COBB tune is hardly pushing numbers where you have to worry about the auto's limits. Look at the Dinan tunes for example pushing COBB Stg1 numbers. Dinan is one of the most conservative tunes we can run and they approve of it

Not only that, but this transmission sees duty behind S/C V8s and TT V12s as well. Ford uses a version in their cars as the 6R80. The Mustang guys have beat the crap out of that one in the new 5.0s.

VMRWheels · 09-18-2012, 09:20 PM

As always, practice makes perfect. Balance traction with your tires, everyone's launch will be a bit different.

ihc95 · 09-19-2012, 03:50 PM

Quote:

Originally Posted by E90Company

Lol. Brake boosting will cause more wear and tear on the tranny components for sure, but it's not "very bad for the tranny." It can handle it. People launch all the time at the track with the auto running meth/upgraded turbos/E85, and have been doing it for a LONG time, some with up to 100k hard miles. A Stage 1 COBB tune is hardly pushing numbers where you have to worry about the auto's limits. Look at the Dinan tunes for example pushing COBB Stg1 numbers. Dinan is one of the most conservative tunes we can run and they approve of it

Fair enough. Its your car and not mine. Brake boost all you'd like. I just don't understand the point of putting unnecessary strain on the transmission for a couple tenths at a drag strip or a 0-60 time. To each their own though.

Longboarder · 09-19-2012, 04:05 PM

I did this going uphill in my auto tranny 335. Brake boosted 2nd gear but only to about 1,200 RPM. Traction control off but it doesn't really matter since the tires don't spin anyway. For better traction, I have an LSD, Michelin PSS and have the Procede traction control setting to 45.

MasterWang · 11-02-2012, 01:07 AM

My current mods are jb4 and dci. I'm running 40% e85 and tried to do some 0-60 runs with dynolicious tonight..Traction all the way off, 2nd gear brake boosted launches.

60' times are horrible :/
Getting around 2.5seconds for 60' time
and 4.9 0-60.
I should be getting around 4.7.....need to practice my launches!

See5 · 11-02-2012, 08:09 AM

Quote:

Originally Posted by 123123123123

My current mods are jb4 and dci. I'm running 40% e85 and tried to do some 0-60 runs with dynolicious tonight..Traction all the way off, 2nd gear brake boosted launches.

60' times are horrible :/
Getting around 2.5seconds for 60' time
and 4.9 0-60.
I should be getting around 4.7.....need to practice my launches!

If its cold outside they aren't going to go down. Most performance tires really start losing traction below 50F in my experience.

09-16-2012, 07:26 PM	#1
rondocap Captain 154 Rep 622 Posts Drives: 335i Sedan Join Date: Feb 2012 Location: NY/NJ iTrader: (1)	Best way to launch auto 335i? I've been trying to get 0-60 numbers an Dyno info using dynolicious, but I may be launching Wong. Average 0-60 time is 5.69 with 249 whp? I have a 2008 rear wheel 335i auto with the BMW ppk performance tune. How should I launch? Traction on or off? Sport or manual mode? Brake boost?
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09-16-2012, 07:35 PM	#2
E90Company Major General 194 Rep 6,136 Posts Drives: Car Join Date: Mar 2012 Location: FL iTrader: (2)	Traction all the way off, Manual 2nd gear, brake boost to 1500-2000RPM, release brake and floor gas.
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09-16-2012, 07:39 PM	#3
Affify11 Second Lieutenant 27 Rep 275 Posts Drives: 2006 BMW 330i Join Date: Oct 2011 Location: Tulsa, Oklahomo iTrader: (0) Garage List 2006 E90 330i [5.00]	does the same go for 330i auto? usually i use 1st gear instead of 2nd
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09-16-2012, 07:59 PM	#5
kboss335 Private 5 Rep 54 Posts Drives: 08 335i e90 Join Date: Mar 2012 Location: Arizona iTrader: (0)	Whenever I try to launch my car in second gear on the AT, I build about 2k rpm, release the brake, get lots wheel spin and then it automatically downshifts into first resulting in a horrible 60' at the drag strip, does this happen to anyone else? I am FBO though....
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09-16-2012, 11:20 PM	#9
username604 Colonel 124 Rep 2,554 Posts Drives: bmw Join Date: Sep 2010 Location: repair shop iTrader: (0) Garage List 2008 BMW 335i [10.00]	Is it safe to repetitively launch the car by holding gas + brake?
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09-17-2012, 01:02 AM	#10
Bimmerlover76 Lieutenant 25 Rep 598 Posts Drives: 2009 335i Coupe Join Date: Oct 2011 Location: Kalamazoo, MI iTrader: (0)	If you're launching Wong, does Wang know?! Maybe Billabong and "Ding. Dong. The witch is dead." can help.
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09-17-2012, 08:29 AM	#13
ihc95 Major 145 Rep 1,314 Posts Drives: 2021 X3 M40i, 2018 Mustang GT Join Date: Jul 2011 Location: NJ iTrader: (1) Garage List 2007 BMW 335i Coupe [0.00]	FYI guys brake boosting is very bad for the tranny. And it doesnt help that most of us are running with well over the 332 ft/lbs of torque this Auto is rated at. Ive never done it and I dont plan to. The reason the magazines do it is because its not their car and they dont care about it. Thats why you see them with sub 5 sec 0-60 times...
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09-18-2012, 08:29 PM	#15
rondocap Captain 154 Rep 622 Posts Drives: 335i Sedan Join Date: Feb 2012 Location: NY/NJ iTrader: (1)	I tried this, and got slightly better results. Traction off and M2. Got 5.49 0-60, and 251HP. I still think I should have a little more whp, since I have the PPK. I was looking for at least 270. I think I may get a better time launching with M1 - I'll try it. The car does bog down a bit at first, which I assume are the wheels spinning - so if I can minimize that, I'll get a better time.
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09-18-2012, 09:20 PM	#18
VMRWheels BimmerPost Supporting Vendor 2038 Rep 25,989 Posts Drives: BMW Join Date: Jun 2007 Location: Anaheim, CA iTrader: (4) Garage List 2013 BMW M3 [10.00] 2015 BMW M4 [0.00] 2013 BMW F30 [0.00] 2014 BMW F22 [0.00] 2013 BMW F06 [0.00]	As always, practice makes perfect. Balance traction with your tires, everyone's launch will be a bit different. __________________ VMR\|Wheels \| 714.442.7916 \| sales@velocitymotoring.com \| www.velocitymotoring.com \| facebook \| flickr \| Instagram
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09-19-2012, 04:05 PM	#20
Longboarder Major General 3430 Rep 6,771 Posts Drives: 2016 BMW i8 Join Date: Dec 2006 Location: Monarch Beach iTrader: (1) Garage List 2012 BMW e92 M3 [0.00] 2021 BMW X5M [10.00] 2015 Porsche 991 Tu ... [10.00] 2015 Porsche 991 GT3 [10.00]	I did this going uphill in my auto tranny 335. Brake boosted 2nd gear but only to about 1,200 RPM. Traction control off but it doesn't really matter since the tires don't spin anyway. For better traction, I have an LSD, Michelin PSS and have the Procede traction control setting to 45. Attached Images __________________ Current BMWs: 2022 X5 40i, 2016 X5 50i 2015 Porsche 991 Turbo S 1979 Porsche 911 Turbo (930) a couple others IG: longboarder949; YouTube: https://www.youtube.com/channel/UCT1...eoFBszPIK0gf9w
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11-02-2012, 01:07 AM	#21
MasterWang Captain 135 Rep 925 Posts Drives: F06 M6 Join Date: Jan 2011 Location: Overland Park, KS iTrader: (2)	My current mods are jb4 and dci. I'm running 40% e85 and tried to do some 0-60 runs with dynolicious tonight..Traction all the way off, 2nd gear brake boosted launches. 60' times are horrible :/ Getting around 2.5seconds for 60' time and 4.9 0-60. I should be getting around 4.7.....need to practice my launches!
	Appreciate 0 Quote