[XxLancaxX]

Originally Posted by BayerischeMW

holding the brake while applying throttle to raise revs is a bad idea on automatic transmissions, it will cook and fail prematurely. if you really feel the need to "drop the clutch" (i know there's no clutch in autos, but it's a catchy phrase nonetheless) you've got the wrong transmission.

BS.........Ive got an auto. Ill brake torque my car all day long. Wont affect a thing. Its not something you should be doing at every stoplight, i agree with that but if you dont brake torque at the track you will add about 3-7tenths of a second on to your time....Thats a fact.....

[0700700]

Originally Posted by esplegend

1) Shift over to sport mode
2) Paddle shift down to 'M1' (Tranny will keep you in M2 otherwise)

Brooks

false... sport starts in 1ST

[0700700]

Originally Posted by XxLancaxX

Practice, Practice, Practice.

Not really ... in your case its called AWD

[E90T]

Originally Posted by esplegend

I have a 335i with an auto/step with paddles and sport. In everyone's opinion, what configuration is the best way to "launch?" Being relatively new to the performace driving arena, I wanted to get thoughts so I can improve my "light to light" times vs. all the 300C Hemi's out here who like to rev their engines at me.

As of now, this is what I'm doing:

1) Shift over to sport mode
2) Paddle shift down to 'M1' (Tranny will keep you in M2 otherwise)
3) Press DTC button once (This is where a big question mark is, should I turn DSC/DTC completely off instead?)
4) When ready to go, press the throttle as far as possible, hitting that little 'maximum throttle' button when the pedal hits the floor

I am fully aware that this probably isn't the best way to get the most out of my starts, which is why I started this thread. Sometimes when I do the above process, the car "dips" when it activates the DTC at low RPMs, and I lose precious power/speed. What do you suggest? If I completely take off the DTC/DSC, should I finesse the pedal a little more so that I don't press it all the way but try to ride that line of the wheels slipping and sticking?

Wow, long-winded. Thanks for the suggestions.

Brooks

Leave TSC on and floor it. Do you think you will be able to match the throttle\traction better then the computer?

[AndrewAZ]

Originally Posted by E90T

Leave TSC on and floor it. Do you think you will be able to match the throttle\traction better then the computer?

Yes... You can go faster without TSC off, its way to aggressive and retards acceleration. But on the other hand I am speaking from experience with DSC on the M3. You might be better off with TSC on since the 335i lacks a LSD and has a lot of power, but for the 328i TSC off is the way to go since at most you will get a little wheel squeal for a few tenths of a second vs having TSC on that retards you for 1/2 a second because of minor wheel slippage.

[GTGeo96]

Originally Posted by charlie335

hold the footbrake, and rev it up to 3000 give or take 500. when the light turns green let go of the brakes and floor it.

i think if you do this with the 335 it will just light up the tires as soon as you floor it.
Ive never owned an auto with power like that, but i would think that you should turn the DTC all the way off, and try to keep the car at the point where the tires are barely holding traction, but dont spin them. i think the car is capable of doing this without powerbraking it no?

[E90T]

Originally Posted by AndrewAZ

Yes... You can go faster without TSC off, its way to aggressive and retards acceleration. But on the other hand I am speaking from experience with DSC on the M3. You might be better off with TSC on since the 335i lacks a LSD and has a lot of power, but for the 328i TSC off is the way to go since at most you will get a little wheel squeal for a few tenths of a second vs having TSC on that retards you for 1/2 a second because of minor wheel slippage.

Sorry, explain to me again how you can do a better job matching throttle\traction to the exact specifics of the pavement better then the BMW computer in either the 328 or 335?

[GTGeo96]

Originally Posted by E90T

Sorry, explain to me again how you can do a better job matching throttle\traction to the exact specifics of the pavement better then the BMW computer in either the 328 or 335?

easy....its still a computer. when it realizes the wheels are spinning, it dramatically cuts throttle, in turn overcorrecting the problem, and the car boggs...not very efficient for speed, where as you can realize this maybe a little bit slower, but can react by just lifting off the gas a little bit to gain traction without overdoing it like the computer which is reacting to programmed setting and inputs. you have something bmw cant engineer into their traction control... the ability to feel the road and make decisions accordingly. Never race with your traction control on in any car....the system is there for convenience and "safety" not speed.

I personally hate those systems, and usualy drive without them...my traction control is my right foot.

[XxLancaxX]

Originally Posted by 0700700

Not really ... in your case its called AWD

true..... but i still have to drive

[arcrox]

Originally Posted by XxLancaxX

BS.........Ive got an auto. Ill brake torque my car all day long. Wont affect a thing.

and you know this because...?

[FirstClass]

Originally Posted by 0700700

false... sport starts in 1ST

Partially false. If you click forward the M mode starts in first, if you click back it starts in second.

[sflgator]

Originally Posted by FirstClass

Partially false. If you click forward the M mode starts in first, if you click back it starts in second.

For the '07 335i (and '07 328i I believe as well) -- In M mode, it will downshift automatically (if you don't manually) only down to 2nd (not 1st); however, you can manually downshift and start out in 1st gear while in M mode. I ALWAYS drive in M mode, using my paddle shifters. Because my 335i has so much TQ from 1,400rpm, I usually start out from 2nd gear in M mode, unless I'm challenged...then, I flip my paddle shifter down to 1st gear and it's game on!!!

[0700700]

Originally Posted by FirstClass

Partially false. If you click forward the M mode starts in first, if you click back it starts in second.

No clicky just use sports mode and then you are in 1st


you dont need to use the paddles to go down to 1st if you had selected sports beforehand

[FirstClass]

Originally Posted by 0700700

No clicky just use sports mode and then you are in 1st


you dont need to use the paddles to go down to 1st if you had selected sports beforehand

I don't know what it starts in in sports mode since theres no indicator, I just know when it is in M mode. M starts in either first or second initially based on which way you click the shifter from sport mode to get there. That's all I meant. I really couldn't say where it starts in sport.

[0700700]

Originally Posted by FirstClass

I don't know what it starts in in sports mode since theres no indicator, I just know when it is in M mode. M starts in either first or second initially based on which way you click the shifter from sport mode to get there. That's all I meant. I really couldn't say where it starts in sport.

I believe that its scientific fact that sports does not equal to slouch, hence no reason to start in 2nd gear... check your manual, ive sold my car now

[esplegend]

What I meant as the OP, if you're using the paddles in sport mode, your car automatically downshifts to second upon coming to a stop.

The problem with the DSC is that when you floor it with the system on defaut, the wheels spin a bit then power substantially gets interupted as the computer tries to get the wheels to stop spinning.

I completely agree GTGeo, with all the assistance controls off, you'll be more apt to "feel" when the wheels are beginning to slip and 'feather' the throttle to get the best feel for the ground and therefore the best/most efficient start.

So far, this seems the best way to launch in an auto:


1) Take off all assistance systems by holding DTC for 5 seconds
2) Slide over to sport mode
3) Paddle shift down to first (or don't use the paddles and let the computer shift for you)
4) Hold the brake, Rev to +1600 RPMs
5) Let go of the brake and HOLD ON!

What do we think?!

[GTGeo96]

Originally Posted by Brisk

GOD WILL THIS END THE DAMN THREAD....

all systems off.... 1700 rpm in D mode.



http://videos.streetfire.net/search/...8101779a39.htm

-lumi

HOLLLLYYY SHIT!!! 4.8?? that cant be right!! i mean, the car is quick, but 4.8?

[AndrewAZ]

Originally Posted by E90T

Sorry, explain to me again how you can do a better job matching throttle\traction to the exact specifics of the pavement better then the BMW computer in either the 328 or 335?

Like I said before the DTC and DSC programs are very very aggressive. And like another posted said its just as dump computer that sense wheel slip and stops it, that all it can do no matter what. And in stopping that wheel slip its very aggressive and that retards the car for a moment.

[AndrewAZ]

Originally Posted by arcrox

and you know this because...?

It wont do anything unless it over heats, its perfectly safe to do it all day long assuming that the temperature of the transmission says within normal operating temperature, but it wont after a few in a row.

[AndrewAZ]

Originally Posted by esplegend

What I meant as the OP, if you're using the paddles in sport mode, your car automatically downshifts to second upon coming to a stop.

The problem with the DSC is that when you floor it with the system on defaut, the wheels spin a bit then power substantially gets interupted as the computer tries to get the wheels to stop spinning.

I completely agree GTGeo, with all the assistance controls off, you'll be more apt to "feel" when the wheels are beginning to slip and 'feather' the throttle to get the best feel for the ground and therefore the best/most efficient start.

So far, this seems the best way to launch in an auto:


1) Take off all assistance systems by holding DTC for 5 seconds
2) Slide over to sport mode
3) Paddle shift down to first (or don't use the paddles and let the computer shift for you)
4) Hold the brake, Rev to +1600 RPMs
5) Let go of the brake and HOLD ON!

What do we think?!

You guys need to realize the 335i and M3 is not a radically powerful car, when I had my M3 I would floor it in 1st get a tad of wheel spin and hook up until my tires chirped from the 1st to 2nd gear change, no need for lifting off the throttle. Partly the reason for this is having tires in good condition with proper inflation along with only going WOT on roads with a good surface. I have an intersection by my house that has tile yes tile in it which is stupid, I learned never to go WOT from that light since nothing would hook up and their was no reason to go WOT since it was not safe to do so.

Anyways be safe and enjoy your cars... And remember drag racing a BMW is like taking a hooker fishing, yes its fun but its not what you paid for. So lets get our cars on some twisty roads and enjoy.

[esplegend]

One of the main reasons why I purchased my 335i was for the power and i.e. the acceleration. All that expensive power is useless unless you're educated enough to harness it and learn how to use it most efficiently. Yes, running a twisty road along a picturesque coastal highway is amazing, but it's not in my daily/normal driving.

I wouldn't mind taking a hooker fishing; however, I know how to multitask.

[Lost Horizon]

Originally Posted by esplegend

....
I wouldn't mind taking a hooker fishing; however, I know how to multitask.

There are actually Hookers who fish? That's amazing. I've heard on Hookers who smelled like fish, but nary a story of a fishing hook er. This is an amazing revelation overall.. It looked like this thread was getting old, but it still has "legs"..

Now I can die...