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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N20 and N26 Turbo Engine / Drivetrain / Exhaust Modifications > F30 N20 1/4 Mile Thread
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      10-02-2012, 12:31 PM   #1
DR.Nefario
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F30 N20 1/4 Mile Thread

Post up your results. I did 14.1@99.5 with a horrible 2.2 60ft. It started raining before I could get another run. Only mod is BMS Stage 1 tune.
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      10-02-2012, 02:31 PM   #2
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That trap speed overlays with stock. If your launch was terrible-indicating wheelspin, if anything that would just inflate your trapspeed. So I wonder how effective your stage 1 tune is at this time.
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      10-02-2012, 02:55 PM   #3
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Quote:
Originally Posted by Jamesons Viggen View Post
That trap speed overlays with stock. If your launch was terrible-indicating wheelspin, if anything that would just inflate your trapspeed. So I wonder how effective your stage 1 tune is at this time.
It wasn't a terrible launch, I just didn't have a chance to raise the RPM's and get a more aggresive launch. 14.1@99 is the best I've seen from any magazine and I was able to match it. Hopefully I can get back before the season is over and get some more runs.
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      10-02-2012, 03:09 PM   #4
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This will be a fun thread! There's an 1/8th pretty close by but I'd love to see actual 1/4 mile time of my car.
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      10-02-2012, 03:31 PM   #5
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My 135i ran 12.7 with a piggyback and intake. Havent ran the 328 yet
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      10-12-2012, 12:48 AM   #6
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My 135i ran 12.7 with a piggyback and intake...
DAMN! That's quick!
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      10-13-2012, 07:39 PM   #7
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Quote:
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My 135i ran 12.7 with a piggyback and intake...
DAMN! That's quick!
It's standard 135i with a good tune and driver time
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      10-14-2012, 06:23 PM   #8
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Yea that ONE was a fun car..less than $500 in mods and it ran fast and it was the step auto also.
But i went thru tires every 4k miles..
here is how i finished off a set of tires...
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      10-19-2012, 12:17 PM   #9
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car sounds good
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      10-21-2012, 11:04 PM   #10
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Finally got a good run. 13.8@100mph. Hopefully I can get into low 13's next season with some wider summer tires and a downpipe.



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      11-21-2012, 11:01 AM   #11
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nice, I may try and get out to the local drag strip and see what I can lay down
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      11-25-2012, 07:39 AM   #12
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Ultimate driving machine. Not american muscle car. Just messin! Lol.

But...Are these even fun to drag? My evo was in the 11s and were low twelves with passengers and that was fun.

I dont see a 328i being fun at all to drive in a straight line. Thats just me though.

How much more power does your tune give you? Are you running on runflats?!

What was running that 11.4?
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      11-25-2012, 10:16 AM   #13
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^ I wonder that too. I was doing 12.5 with my Evo with a few mods. I might drag the BMW a few times just to see what it does with the intake, exhaust and BMS stage 1.
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      11-25-2012, 02:05 PM   #14
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After owning a car that can trap 130mph in the 1/4 i have no desire to run my new car at the track. I might a few times stock and each time if i add a performance mod i will see if it helps.
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      11-25-2012, 02:18 PM   #15
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Tracks i prefer are not in a straight line. I could do that from the light on the freeway entrance lol.
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      11-26-2012, 02:29 AM   #16
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Quote:
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Tracks i prefer are not in a straight line. I could do that from the light on the freeway entrance lol.
Agreed, I was just curious
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      12-01-2012, 11:04 AM   #17
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Yea that ONE was a fun car..less than $500 in mods and it ran fast and it was the step auto also.
But i went thru tires every 4k miles..
here is how i finished off a set of tires...
Brought me back a few years in 1988 had e30 3251 sport and was so much fun
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      12-01-2012, 08:37 PM   #18
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My store ordered Jb speed for 2013 f30 and possibly got for 2013 and they could not fit ;(
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      05-08-2013, 11:06 PM   #19
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328xi fbo bms st2
1/4 13.1s 170.9 km/h

Last edited by Zluk; 05-09-2013 at 12:06 AM.
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      06-22-2013, 07:03 PM   #20
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Ran last night, heres the details

2013 328xi M-sport auto N26. Stock all season tires.

BMS JB3 stage 1 (+3psi default tune)
5C-R race axle back

88F outside, humidity extremely high
1.83 60'
13.91 98mph

That was the best of the night. knocked off a couple 13.9x and a ton of 14.0x times.

I have the JB4/flex wires ready to install. I may try and do that tomorrow and go back to the track next weekend on e85
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      06-24-2013, 04:39 AM   #21
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1/4 mile time

Hi

I did VBOX testing on my 125i Auto with BMS JB4 stage 2. Standard tyres - M-Sport mixed 18" Bridgestones. I ran a 12.7sec 1/4 mile @ 111mph. I did 0-60mph in 4.3 secs.

My car makes 221kw and 444nm at the flywheel. I launch with 2500rpm with my left foot on the brake with DSC off and in sport auto. Then WOT and brake lift off at once. Minimal wheel spin. I use Map 1 with a 20% Ethanol and 80% 95RON pump fuel mix.

Once I have the flex fuel wires installed, I will increase boost and try improve on these numbers. My car is otherwise stock.


Dyno sheet attached....
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Last edited by QQ; 06-24-2013 at 04:48 AM. Reason: Typo
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      06-24-2013, 09:39 AM   #22
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Quote:
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Hi

I did VBOX testing on my 125i Auto with BMS JB4 stage 2. Standard tyres - M-Sport mixed 18" Bridgestones. I ran a 12.7sec 1/4 mile @ 111mph. I did 0-60mph in 4.3 secs.

My car makes 221kw and 444nm at the flywheel. I launch with 2500rpm with my left foot on the brake with DSC off and in sport auto. Then WOT and brake lift off at once. Minimal wheel spin. I use Map 1 with a 20% Ethanol and 80% 95RON pump fuel mix.

Once I have the flex fuel wires installed, I will increase boost and try improve on these numbers. My car is otherwise stock.


Dyno sheet attached....
So that is 300whp and 327ft lbs. What was the cars stock crank rating? Stock car, just BMS stage 2 at +4psi and a mix of E85?
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