[sicmadek]

I just got my 2013 335i sport 8at yesterday and this thing surprised me. Im going to the dragstrip today to get a baseline before i tune it. It has goodyear ecogrip runflats on it. Should i even bother dropping the pressure on those? What is a good rpm to stall up to? Do i use sport+ mode? Do i let the car do the shifts on its own? Ive been dragracing for about 20 yrs so just point me in the right direction and ill get it down.

[f30m]

Originally Posted by sicmadek

I just got my 2013 335i sport 8at yesterday and this thing surprised me. Im going to the dragstrip today to get a baseline before i tune it. It has goodyear ecogrip runflats on it. Should i even bother dropping the pressure on those? What is a good rpm to stall up to? Do i use sport+ mode? Do i let the car do the shifts on its own? Ive been dragracing for about 20 yrs so just point me in the right direction and ill get it down.

I find that sport + and brake boosting to about 2000 gives me my best launch. If you do any more than that or completely disable traction control then you get too much wheelspin. Haven't taken mine to the strip yet but when I do I'll be sure to see what method gives me the best 60'.

[Shayan55]

i launch in sport+ and break boost in 2nd gear till about 2200 and then mash it at it got me 1.8 60' at the dragstrip

[sicmadek]

Originally Posted by f22_shayan

i launch in sport+ and break boost in 2nd gear till about 2200 and then mash it at it got me 1.8 60' at the dragstrip

Which tires and mods?

[Shayan55]

Originally Posted by sicmadek

Which tires and mods?

at the time, i had the stock bridgestone potenza runflats (225/35R18) and mod wise i just had a BMS intake and a muffler delete, but now i have federal 595RS-RR's and a BMS stage 1 so hopefully i can get to the dragstrip sometime soon and report back

[sicmadek]

Originally Posted by f22_shayan

at the time, i had the stock bridgestone potenza runflats (225/35R18) and mod wise i just had a BMS intake and a muffler delete, but now i have federal 595RS-RR's and a BMS stage 1 so hopefully i can get to the dragstrip sometime soon and report back

Im right lane

[GTBrandon]

Originally Posted by sicmadek

Im right lane

Why no launch control?...

Sport plus, shifter pulled to the left (S1), brake all the way down, throttle all the way down. Builds turbo pressure and keeps traction without lunging. Granted I have xDrive so I don't know what would happen with the RWD when you let off the brakes, but I don't have traction issues!

[Shayan55]

Originally Posted by GTBrandon

Why no launch control?...

Sport plus, shifter pulled to the left (S1), brake all the way down, throttle all the way down. Builds turbo pressure and keeps traction without lunging. Granted I have xDrive so I don't know what would happen with the RWD when you let off the brakes, but I don't have traction issues!

for rwd, at least in mine, launch control just spins, badly the first time i do it, then it launches softer and its just slow lol

[mannymazz]

Do you guys notice better times when In S or manually shifting. Also do you bother turning traction completely off or just sport +. I have x drive so I find launch control hooks fine.

[sicmadek]

Originally Posted by mannymazz

Do you guys notice better times when In S or manually shifting. Also do you bother turning traction completely off or just sport +. I have x drive so I find launch control hooks fine.

S mode manually shifting 5500-6000 gives best times on stock turbo.

[mannymazz]

Originally Posted by sicmadek

S mode manually shifting 5500-6000 gives best times on stock turbo.

If you manually shift doesn't it take you out of S mode. Also how would you launch with LC or brake torque.

[sicmadek]

Originally Posted by mannymazz

If you manually shift doesn't it take you out of S mode. Also how would you launch with LC or brake torque.

Slap shifter to left use the paddle shifters. Once you do it will not shift for you.

[GTBrandon]

Originally Posted by mannymazz

If you manually shift doesn't it take you out of S mode. Also how would you launch with LC or brake torque.

Check out my YouTube video on how to use launch control in these cars. Link below

[GTBrandon]

Originally Posted by mannymazz

Do you guys notice better times when In S or manually shifting. Also do you bother turning traction completely off or just sport +. I have x drive so I find launch control hooks fine.

After I had my dyno performed, I saw the turbo drops out STEEPLY after 6200rpm. I would recommend shifting manually at 6,000 as I believe the car waits until 7,000 when you let it shift itself. Check out my build thread to see the dyno graphs stock and with my tune to see what I am referring to.

[sicmadek]

Originally Posted by GTBrandon

Check out my YouTube video on how to use launch control in these cars. Link below

No link

[GTBrandon]

Originally Posted by sicmadek

No link

My bad:

[sicmadek]

Originally Posted by GTBrandon

My bad:

I dont think my pwg car has lc

[peopleschoice1]

Originally Posted by sicmadek

Im right lane

Nice times! what mods were done when you ran those times?

[sicmadek]

Originally Posted by peopleschoice1

Nice times! what mods were done when you ran those times?

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