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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Unhappy w/Cobb tune...



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      10-01-2011, 02:13 AM   #1
Magic-Man
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Thumbs down Unhappy w/Cobb tune...

I previously had BMS DCI & JB+ @ 75% on the car. Ran 13.3 @ 105 MPH in 80*+ temps & 74% humidity @ sea level.

Ran the car again today w/BMS DCI & Cobb v301 stage 1 map. 13.3 @ 107 MPH in 54% humidity with much cooler temps.

Not happy that I only gained 2 MPH for almost $800 spent on the AP.

This isn't a Cobb tune vs [insert other tune here] thread.
This isn't a Cobb sucks thread.

I am simply stating the facts & hoping to get some answers from Cobb and/or the forum. This is an N54 335xi.

I do not have any logs of the runs.
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      10-01-2011, 02:16 AM   #2
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Time slips? How many runs did you do?

Seems that your launch sucked with the COBB, so I wouldn't blame it on COBB.
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      10-01-2011, 02:24 AM   #3
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Logs would have helped. At or mt? Can you post the timeslip?
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      10-01-2011, 02:31 AM   #4
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Quote:
Originally Posted by themyst View Post
Logs would have helped. At or mt? Can you post the timeslip?
AT.
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      10-01-2011, 02:32 AM   #5
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Quote:
Originally Posted by onesuperboi View Post
Time slips? How many runs did you do?

Seems that your launch sucked with the COBB, so I wouldn't blame it on COBB.
Launch was crap before Cobb as well. I do the same stuff everyone else says they do, but can never get a sub 2.0 60' w/the car.
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      10-01-2011, 03:23 AM   #6
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What were you expecting? To trap about 115mph or so because that would be unrealistic for just a tune and intake on the car.
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      10-01-2011, 04:19 AM   #7
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I don't get it... you're unhappy because your new tune didn't get as good numbers on the drag strip? I have had the JB+ and can tell you COBB Stage 1 is leaps and bounds better. Even if your numbers didn't improve...
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      10-01-2011, 04:25 AM   #8
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il take the cobb of ur hand i have 500 cash in hand
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      10-01-2011, 04:29 AM   #9
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      10-01-2011, 04:30 AM   #10
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Well, it's not the ride, it's the rider...
don't blame the player, just blame the game!!
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      10-01-2011, 08:36 AM   #11
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Mine is 335xi 6 sp manual, and has only cobb ap with no other mods.
I've got 60'=1.9 and 0-60=4.009,1/4=12.789 in very hot days
So there are two reasons why op got that numbers
1. Bad driver
2. smth wrong with the car

Last edited by bmwm3redblack; 10-01-2011 at 02:38 PM..
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      10-01-2011, 08:37 AM   #12
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worst review ever
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      10-01-2011, 08:43 AM   #13
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Same track? Which stage 1 map? Time slip?

Either you are doing something wrong or your car is busted. If there is a problem I'm sure if you threw back on the JB+ you wouldn't even hit those times.

Everyone who hits the strip should be logging. There is no reason not to with the COBB!

Alan
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      10-01-2011, 08:49 AM   #14
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Quote:
Originally Posted by bmwm3redblack View Post
Mine is 335xi 6 sp manual, and has only cobb ap with no other mods.
I've got 60'=1.0
You got a 1.0 60'. haha, sure.
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      10-01-2011, 08:52 AM   #15
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^ I have rwd and I got a 0.6 = 60'
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      10-01-2011, 08:58 AM   #16
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haha i hope you are joking ^^

i got a 0.1 60 ft time. they fired me out of a giant slingshot
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      10-01-2011, 08:58 AM   #17
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Go to dragtimes and use their hp calculator. 2mph gain is pretty significant. Your launch sucked with the Cobb, you gained 2mph and had the same time. Cooler temps means it's harder to get traction.

Additionally, the jb+ does nothing for fueling or timing. You're MUCH safer with the cobb. You're running richer and less timing and making more power with no codes whatsoever. Should you choose to learn and continue to mod, the ap will support that.
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      10-01-2011, 08:59 AM   #18
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im pretty sure a 13.3s ET is possible on a stock 335i... isn't it?
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      10-01-2011, 10:17 AM   #19
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Quote:
Originally Posted by Javier View Post
im pretty sure a 13.3s ET is possible on a stock 335i... isn't it?
Look through the dragtimes list and you'll see that 13.3 is probably the average ET for a stock car, hell there are a couple stock cars on run flats running 13 flats, cobb only cars are running around 12.6-12.7 with a good launch and driver. And you dont need a 1/4 run to tell you that the cobb(or any real tune) is MUCH faster than a JB+, OP probably has it set to map 0 or something lol
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      10-01-2011, 10:45 AM   #20
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Since when does a stock 335i do the quarter mile in 13 flat???
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      10-01-2011, 10:49 AM   #21
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Quote:
Originally Posted by Brey335i View Post
I don't get it... you're unhappy because your new tune didn't get as good numbers on the drag strip? I have had the JB+ and can tell you COBB Stage 1 is leaps and bounds better. Even if your numbers didn't improve...
I'm saying $800 for 2 mph = not worth it IMO.

Regarding all the clowns chiming in w/their bad driving. Troll another thread. The car is an auto xi. I have done everything everyone else says they do to get these 1.7 60's. No matter what I tach it up to, the car feels like it's on a delay out of the hole. It did this crap before Cobb too. So it's not the driver mod that is needed.
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      10-01-2011, 10:50 AM   #22
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Quote:
Originally Posted by rader1 View Post
OP probably has it set to map 0 or something lol
Did you actually READ? map v301...
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