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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Tracking, Autocrossing, Dragstrip, Driving Techniques > My e90 330i vs Friends e92 328i



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      02-18-2009, 12:12 AM   #1
AMT92
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My e90 330i vs Friends e92 328i

well the conditions where
after rain, wet ground, straight away till around 80mph, DTC ON, car is put into sports BUT NOT TIPTRONIC.

AND I LOST?!

well we went 3 rounds

1st-i burned out while he took off then my dtc came on and i lost horribly
2nd&3rd-still had a burnout until dtc kicked in, then just lost by maybe 2-3 feet.

question is, is it my car that isn't performing? or was it just the fact of the wet ground?
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      02-18-2009, 01:52 AM   #2
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Hmm that's interesting. I have a classmate with an E93 328. I've been interested to see how I would do. The DTC lagging is weird though. Maybe its a glitch that they fixed in the firmware for newer models?

BTW, for BMWs, its called steptronic (copyright licensing and all that mess). Just FYI.
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      02-18-2009, 10:10 AM   #3
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the launch makes a huge difference. huge. try again when the streets are dry and you can get good traction, then report back.

Also, DS mode should shift fine for this (and is probably faster than doing it manually).

Was the 328 manual, or auto?
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      02-18-2009, 02:18 PM   #4
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yea 25hp is close enough that launch makes a huge difference. and the wet gave him an advantage because you can't put the power down as well
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      02-19-2009, 11:00 PM   #5
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That's what i thought, i figured because of my more torque/hp i would lose grip easier than him and therefore dtc slowing me down to regain grip then going.

also, if i put my car into DS will it automatically go into 1st?

and whats better, to floor it right before the click? or to just put the pedal to the metal? cuz i'm at a stop anyways so it's not like the car will double downshift
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      02-19-2009, 11:35 PM   #6
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Idk what the car does when you click it down while in step. I want to know though.
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      02-19-2009, 11:45 PM   #7
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Quote:
Originally Posted by Wake27 View Post
Idk what the car does when you click it down while in step. I want to know though.
To my knowledge it just downshifts the car once more, so floor w/o click=single downshift
floor w/ click=double downshit

just to be sure can anybody confirm that i'm right on that?
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      02-20-2009, 10:36 AM   #8
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if its dry out, you should be able to just floor it. pedal to the metal. it will start in 1st if you floor it. If you still get a lot of wheel spin, then you may have to ease up a bit on the launch until you can get traction.
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      02-20-2009, 10:51 AM   #9
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So Im best off putting it in Ds then just flooring it all the way?
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      02-20-2009, 03:50 PM   #10
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I'd use the brake to wind up the torque converter and then just floor it. On 328 you don't break traction unless you start at a very high rpm, so I don't think wheelspin in the dry will be a big issue for either of you. I'd do the runs with traction control full off and modulate with the throttle
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      02-21-2009, 12:26 AM   #11
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Quote:
Originally Posted by Nick Nazareno View Post
I'd use the brake to wind up the torque converter and then just floor it. On 328 you don't break traction unless you start at a very high rpm, so I don't think wheelspin in the dry will be a big issue for either of you. I'd do the runs with traction control full off and modulate with the throttle
so hold my brake pedal, release/floor it?

well on the wet surface i got a lot more wheel spin than him so
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      02-21-2009, 01:31 AM   #12
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All Driver Skillz YO!
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Why does every Forum use a different signature format???????????
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      02-21-2009, 02:29 AM   #13
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Quote:
Originally Posted by 325racer View Post
All Driver Skillz YO!
Very helpful. Thank you.
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Last edited by Wake27; 02-22-2009 at 04:05 PM..
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      02-21-2009, 02:33 AM   #14
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haha ya but the weather put me in a bad position
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      02-22-2009, 12:17 PM   #15
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Set transmission in M1. Power brake...hold left foot on brake and press throttle bringing RPMs upto about 3300. when the flag drops lift on the brake and floor it with your right foot. let the transmission shift for you at redline. by 80Mph you should have a good car length on your buddie assume his 328 is also an automatic.

also, in wet conditons tread condtion especially with Brigstones is critical in putting power down.
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      02-22-2009, 01:57 PM   #16
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Quote:
Originally Posted by smellthebeans View Post
Set transmission in M1. Power brake...hold left foot on brake and press throttle bringing RPMs upto about 3300. when the flag drops lift on the brake and floor it with your right foot. let the transmission shift for you at redline. by 80Mph you should have a good car length on your buddie assume his 328 is also an automatic.

also, in wet conditons tread condtion especially with Brigstones is critical in putting power down.
a.k.a. launching my car, haha there was no launching on the race. yeah i guess i shouldn't have raced him on wet conditions
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      02-22-2009, 02:52 PM   #17
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If i were you I would have gone full traction control off.
I rarely drive with it on.
When on, Once your car feels the loss of traction it cuts power.
I hate that.
Whenever making a hard turn in 2nd gear i start to drift a bit and my car kills the power to the wheels.
Turn it off and just know the feel of your car.

(I'm not at all saying street racing is ok, i hope you and your friend were on a closed empty road.
I'm also not telling you to always drive with DSC/DTC off.
Just telling you what i would do in my car if I was trying to keep power to my wheels through a straightaway race.)
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      02-25-2009, 05:03 PM   #18
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DCT off! Then Floor it.....you should win by a car at 80. B safe...dont race on the streets...
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      02-25-2009, 08:36 PM   #19
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Quote:
Originally Posted by SuPaSkillz View Post
DCT off! Then Floor it.....you should win by a car at 80. B safe...dont race on the streets...
It was completely closed off, and i told my friend that i'm not gonna race him again cuz i can prove i'll win with a simple google search

but thanks
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