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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Finally got a decent time..12.7 @ 108



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      04-20-2012, 11:03 PM   #1
sA x sKy
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Finally got a decent time..12.7 @ 108

So I went to Atco Raceway in NJ today and did 4 passes. First pass I got a 15.xx LOL cos I lost power after my launch. I didn't know why at the time. Second pass I got a 13.7x and lost power again. 3rd pass I got a 13.1 or something and my traction control light came up and I fucking realized I never turned off DTC lmao. So 4th and final pass, I turn off DTC, and got my best launch ever and hit my goal (of the day) of getting a 12.7 I think a 12.5 is easily manageable with a higher meth conc. and upping the additive.

I ran 50/50 boost juice with a 50 additive with 93 octane today. All in all..I'm much happier than before.

Side story..going back to Long Island on the NJ Turnpike, there was a moment where I went from 60 to 110ish for about 2-3 seconds. I started to slow down..5 seconds later, a state trooper turns on his lights and I'm bugging out. I've never got a ticket in my life. I pull over and as soon as the cop comes to the window, I tell him I'm very sorry, it was in the moment. He must've been confused because apparently he was behind me the entire time and he didn't understand why I gunned it when a cop was right behind me!

Convo: "Where you boys coming from?"
"Atco Raceway"
"Oh you were racing? How'd you do?"
"12.7 at 108"
"Oh that's pretty good, brb"

He gave me a $140 careless driving ticket instead of a ticket that would have been a 5 points summons. Gotta love cops who are into cars..

PS..its still definitely normal that my car doesn't not have the smoothest shifts at low speeds right..?




Last edited by sA x sKy; 04-20-2012 at 11:10 PM.
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      04-21-2012, 12:28 AM   #2
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Hmmmmmm
Nice! 109? Interesting.
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      04-21-2012, 12:27 PM   #3
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Wow 1.7 60ft...I'm jealous of you XI guys. Congrats on your times.
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      04-21-2012, 01:47 PM   #4
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Not bad at all, very nice launch. Where did you shift at?
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      04-21-2012, 02:46 PM   #5
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What's your mod list?
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      04-21-2012, 03:02 PM   #6
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nice run! you really lucked out with a slap on the wrist from the state trooper.
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      04-21-2012, 03:37 PM   #7
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What's your mod list?
Everything is listed in my sig.
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      04-21-2012, 03:38 PM   #8
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nice run! you really lucked out with a slap on the wrist from the state trooper.
Yeah tell me about it. I was scared shitless..time to get a V1 now.
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      04-21-2012, 03:39 PM   #9
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Originally Posted by Sloppy View Post
Not bad at all, very nice launch. Where did you shift at?
I set my shift lights at 5800. I launched at 1st gear between 2000 and 2500. I'm going to go to the strip again in two weeks once I get my spark plugs replaced as well as on oil change next Saturday. I'm at 18500 miles now
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      04-21-2012, 03:42 PM   #10
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It's takes effort to shift smoothly in these cars. Low speeds tend to be a bit lurchy. Sounds normal. Rev hang and the turbo aren't a manual driver's best friends.
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      04-21-2012, 03:47 PM   #11
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It's takes effort to shift smoothly in these cars. Low speeds tend to be a bit lurchy. Sounds normal. Rev hang and the turbo aren't a manual driver's best friends.
I'm an auto
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      04-21-2012, 03:57 PM   #12
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Here's a video..the video quality on YouTube sucks..if you guys add me on FB (PM me), you can see a higher resolution one..

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      04-21-2012, 04:29 PM   #13
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12,7 for a fbo meth car seems very slow to me, especially for an auto.
You should try taking off dsc completely and launching in second gear while brake boosting. If youre already doing that then you need better tires.
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      04-21-2012, 04:34 PM   #14
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Quote:
Originally Posted by Beemw335 View Post
12,7 for a fbo meth car seems very slow to me, especially for an auto.
You should try taking off dsc completely and launching in second gear while brake boosting. If youre already doing that then you need better tires.
I have an n55 with xDrive bro..what do you expect

DSC was fully off. Better tires? I have the best track/summer tires available on my car. Nothing will beat RE-11's.
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      04-21-2012, 04:39 PM   #15
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12.7 is fast, dont get me wrong. I have an n54, so its different, but Im sure you could do much better than that fbo with meth.
You have x drive, so launching shouldnt be an issue, I would brake boost in first gear till just a bit over 2k and launch. Let the car shift into 2nd itself, and then shift at 6k rpm manually for the other gears.
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      04-21-2012, 04:47 PM   #16
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Quote:
Originally Posted by Beemw335
12.7 is fast, dont get me wrong. I have an n54, so its different, but Im sure you could do much better than that fbo with meth.
You have x drive, so launching shouldnt be an issue, I would brake boost in first gear till just a bit over 2k and launch. Let the car shift into 2nd itself, and then shift at 6k rpm manually for the other gears.
He already got a pretty damn good 60. I don't think he can do any better. Also brake boosting at 2k rpm is stupid for a xdrive.
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      04-21-2012, 04:53 PM   #17
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Quote:
Originally Posted by eyim1988 View Post
He already got a pretty damn good 60. I don't think he can do any better. Also brake boosting at 2k rpm is stupid for a xdrive.
Well I have an i so that what I brake boost at. 3k rpm max, unless you want to destroy your brakes.
OP, have you dynoed? do you know how much power your making?
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      04-21-2012, 04:53 PM   #18
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Quote:
Originally Posted by sA x sKy View Post
I'm an auto
Lmao ... I missed that. Sorry. I'd offer input but I have yet to drive an auto 335.
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      04-21-2012, 05:04 PM   #19
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Quote:
Originally Posted by eyim1988 View Post
He already got a pretty damn good 60. I don't think he can do any better. Also brake boosting at 2k rpm is stupid for a xdrive.
yep, nothing more I can do without taking apart my car for weight reduction which i wont do. or adding more meth..i'll end up running 70/30 next time i head to the strip. definitely will be hitting 12.5 next time. after that..can't do much without upgraded turbos.
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      04-21-2012, 05:21 PM   #20
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Quote:
Originally Posted by sA x sKy View Post
yep, nothing more I can do without taking apart my car for weight reduction which i wont do. or adding more meth..i'll end up running 70/30 next time i head to the strip. definitely will be hitting 12.5 next time. after that..can't do much without upgraded turbos.
I'm pretty sure you can get down to a 12.3-12.4 . Try to get a 1.5 60' next time!! haha with a 70/30 mix.
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      04-21-2012, 05:22 PM   #21
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I'm pretty sure you can get down to a 12.3-12.4 . Try to get a 1.5 60' next time!! haha with a 70/30 mix.
I shall try. Doing my best to be the quickest N55 xDrive out there
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      04-21-2012, 05:25 PM   #22
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nice! make the most of what we have!
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