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E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

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  #1  
Old 11-02-2008, 07:48 PM
SMBMW SMBMW is offline
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Quickest acceleration using DS mode in 335i?

I am trying to figure out how to get that less than 5 second 0-60 acceleration (and also beating the pants off cars trying to race). DS gets the car off like a rocket, but the problem is getting up shifts to get the best acceleration. When I floor it in DS the car goes to 7,000 RPMs which I know does not get you the quickest acceleration. I have tried lifting off the accelerator pedal to get the car to shift sooner, but car is not consistent in shifting when trying this approach. I am now thinking starting-off in DS mode but then using the paddles to shift as soon as the car hits 5,000 rpm.

Any suggestions?
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  #2  
Old 11-02-2008, 07:53 PM
ajohnson161 ajohnson161 is offline
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  #3  
Old 11-02-2008, 08:02 PM
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Start in Manual Mode (M1) with the DTC button pushed once (short tap not a 6 second hold )

Power Break (Hold gas and brake down at once) and hold your revs to around 2600 RPM

When the light Turns Green Shift with the paddle at around 5800 Rpm


Thats how you launch a 335i
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  #4  
Old 11-03-2008, 09:24 AM
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Quote:
Originally Posted by riod007 View Post
Start in Manual Mode (M1) with the DTC button pushed once (short tap not a 6 second hold )

Power Break (Hold gas and brake down at once) and hold your revs to around 1800-2000 RPM

When the light Turns Green Shift with the paddle at around 5800 Rpm


Thats how you launch a 335i
Fixed.
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  #5  
Old 11-03-2008, 10:02 AM
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Quote:
Originally Posted by riod007 View Post
Start in Manual Mode (M1) with the DTC button pushed once (short tap not a 6 second hold )

Power Break (Hold gas and brake down at once) and hold your revs to around 2600 RPM

When the light Turns Green Shift with the paddle at around 5800 Rpm


Thats how you launch a 335i
It's better to let DS shift automatically near redline. The power fall-off after 5800 RPM is more gradual than the power loss from shifting that early.

I'd start off in M1 (DS still starts in 2nd IIRC) and then slap the transmission back into DS as soon as you get moving. There's almost no way you'll gain better acceleration in Manual mode than what DS can achieve.
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  #6  
Old 11-03-2008, 10:11 AM
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Quote:
Originally Posted by jwac View Post
It's better to let DS shift automatically near redline. The power fall-off after 5800 RPM is more gradual than the power loss from shifting that early.

I'd start off in M1 (DS still starts in 2nd IIRC) and then slap the transmission back into DS as soon as you get moving. There's almost no way you'll gain better acceleration in Manual mode than what DS can achieve.
i absolutely agree!
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  #7  
Old 11-03-2008, 12:04 PM
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If this car has 300hp and 300lbft and you think it will do 0-60 under 5 on normal road......good luck....

Last edited by Carbon; 11-03-2008 at 12:41 PM.
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  #8  
Old 11-03-2008, 01:39 PM
zoltrix zoltrix is offline
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Quote:
Originally Posted by jwac View Post
It's better to let DS shift automatically near redline. The power fall-off after 5800 RPM is more gradual than the power loss from shifting that early.

I'd start off in M1 (DS still starts in 2nd IIRC) and then slap the transmission back into DS as soon as you get moving. There's almost no way you'll gain better acceleration in Manual mode than what DS can achieve.
But how can you go to DS directly from M1? Don't you have to flip it to D first and then back to DS?
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  #9  
Old 11-03-2008, 01:48 PM
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Originally Posted by coontie View Post
But how can you go to DS directly from M1? Don't you have to flip it to D first and then back to DS?
using the paddles you can shift even in D mode - therefore be in D and M1... right?
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  #10  
Old 11-03-2008, 01:57 PM
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Quote:
Originally Posted by Carbon View Post
If this car has 300hp and 300lbft and you think it will do 0-60 under 5 on normal road......good luck....
300/300 are obviously conservative figures. On the dyno stock 335i's have been known to pull ~275 hp at the wheels, which would only be a ~8% driveline loss! More realistic power figures are 335 hp or so. Don't forget also that the "300" lb-ft of torque comes on at 1400 RPM and stays there until 5k!

Quote:
Originally Posted by coontie View Post
But how can you go to DS directly from M1? Don't you have to flip it to D first and then back to DS?
Exactly. You have to be fast and do it before you hit the top of 1st gear.

You can also just stay in D, select M1 via the paddles, and just slap over immediately to DS once you're rolling. Prior to having paddle shifters you couldn't do this. The car will launch like a rocket.
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  #11  
Old 11-03-2008, 02:05 PM
Carbon Carbon is offline
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Quote:
Originally Posted by jwac View Post
300/300 are obviously conservative figures. On the dyno stock 335i's have been known to pull ~275 hp at the wheels, which would only be a ~8% driveline loss! More realistic power figures are 335 hp or so. Don't forget also that the "300" lb-ft of torque comes on at 1400 RPM and stays there until 5k!



Exactly. You have to be fast and do it before you hit the top of 1st gear.

You can also just stay in D, select M1 via the paddles, and just slap over immediately to DS once you're rolling. Prior to having paddle shifters you couldn't do this. The car will launch like a rocket.
How would my N/A M3 Evo @ 341hp compare to one of those then?
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  #12  
Old 11-03-2008, 04:58 PM
cardsdoc cardsdoc is offline
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1) Is the "kickdown" mode useful for this?
2) If you use the paddles to shift into M1 from D, and then floor it, when will it shift?
3) Or how about pure manual mode starting in M1 - won't it force an upshift when it hits redline anyway?
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