Launching with DP's and Tune

Johnnyr135 · 11-15-2008, 09:28 PM

Hi guys I was wondering if you guys with full bolt on's are running the 1/4 mile starting in 2nd gear or 1st gear. There is so much torque first gear really just spins and you have to shift right away anyway, if you take off in 2nd it spins so I am thinking maybe that is the gear to launch in. If the car is just spinning the tires in 2nd gear anyway I am thinking launching the car in second would be a good idea since I will cut out one shift in the run. I am going to the track tomorrow and will test out the theories.

cn555ic · 11-15-2008, 09:39 PM

Quote:

Originally Posted by Johnnyr135

Hi guys I was wondering if you guys with full bolt on's are running the 1/4 mile starting in 2nd gear or 1st gear. There is so much torque first gear really just spins and you have to shift right away anyway, if you take off in 2nd it spins so I am thinking maybe that is the gear to launch in. If the car is just spinning the tires in 2nd gear anyway I am thinking launching the car in second would be a good idea since I will cut out one shift in the run. I am going to the track tomorrow and will test out the theories.

I think you need to get a LSD...You have the Dinan tune if not I would have told you to go the V3 route because there is a function in the Procede that allows for just this...the perfect launch because the torque is reduced on gear 1 and also allowed to dial it in for gear 2....Other than that I guess its all about traction...better tires/ or just slicks

Mr. 5 · 11-15-2008, 09:57 PM

There is no reason to start in 2nd.
You don't need an LSD.
All you need is good rubber.
A set of drag radials will do the trick.

Also, I changed your title from lauching to launching.

sd390r · 11-16-2008, 01:02 AM

lsd wont even help you that much

maybe on a road course

Sam12345 · 11-16-2008, 03:11 AM

Tires, tires...tires.
Thats all that matters when it comes to launching(well mostly)

Get your tires nice and hot before your launch.

Power-braking is the way i launch, left foot on brake. right foot on gas and rev up to 1.6-2.2 depending on how i feel. then let go of brake and slam the gas. DSC and DTC off all the way
-sam

11-15-2008, 09:28 PM	#1
Johnnyr135 Captain 73 Rep 893 Posts Drives: BMW 135i Join Date: May 2008 Location: NY iTrader: (1)	Launching with DP's and Tune Hi guys I was wondering if you guys with full bolt on's are running the 1/4 mile starting in 2nd gear or 1st gear. There is so much torque first gear really just spins and you have to shift right away anyway, if you take off in 2nd it spins so I am thinking maybe that is the gear to launch in. If the car is just spinning the tires in 2nd gear anyway I am thinking launching the car in second would be a good idea since I will cut out one shift in the run. I am going to the track tomorrow and will test out the theories. __________________ 2008 BMW 135i, DINAN / Riss Racing / BMS
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11-15-2008, 09:57 PM	#3
Mr. 5 Modder Raider 753 Rep 8,633 Posts Drives: M3 Join Date: Apr 2007 Location: Surf City, HB iTrader: (31) Garage List 2007 e90 335i [8.00]	There is no reason to start in 2nd. You don't need an LSD. All you need is good rubber. A set of drag radials will do the trick. Also, I changed your title from lauching to launching. __________________ e36 M3 Coupe, e36 325i Sedan e90 335i--SOLD Best 60-130-------------9.15 Seconds------------------WWW.MR5RACING.COM
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11-16-2008, 01:02 AM	#4
sd390r Lieutenant Colonel 61 Rep 1,654 Posts Drives: AW M3 Join Date: Aug 2008 Location: North Jersey iTrader: (9) Garage List 2008 E90 335i [0.00]	lsd wont even help you that much maybe on a road course __________________ 2008 E90 M3 - Sold 2006 Evo IX SE - Sold 2008 E90 335i - Sold
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11-16-2008, 03:11 AM	#5
Sam12345 Lieutenant Colonel 106 Rep 1,534 Posts Drives: jet black 335i coupe Join Date: Feb 2008 Location: So Cal iTrader: (3) Garage List 2008 335i Coupe [0.00]	Tires, tires...tires. Thats all that matters when it comes to launching(well mostly) Get your tires nice and hot before your launch. Power-braking is the way i launch, left foot on brake. right foot on gas and rev up to 1.6-2.2 depending on how i feel. then let go of brake and slam the gas. DSC and DTC off all the way -sam __________________ Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(e90post.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
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