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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 > Love my Cobb but



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      06-27-2013, 06:23 PM   #1
matty088
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Love my Cobb but

I love my Cobb but man do these cars fall on their face above 5700 rpms. Will adding a fmic and running stage1+ help?
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      06-27-2013, 06:47 PM   #2
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of course itll help.. stage 1 plus is significant than stage 1... plus less heat soak..
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      06-27-2013, 07:00 PM   #3
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Yup, heat soak(along with our poor little TD03s) is a major factor in power loss up top.
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      06-27-2013, 07:08 PM   #4
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Stock intercooler+stock turbos. Cobb has nothing to do with it.
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      06-27-2013, 07:15 PM   #5
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Nitrous does wonders, ask me how I know.
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      06-27-2013, 07:17 PM   #6
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Quote:
Originally Posted by 135Pats View Post
Stock intercooler+stock turbos. Cobb has nothing to do with it.
It wasn't my intention to blame Cobb. Not sure how you came to that conclusion.

But I am shocked at the lack of pull as the rpms get up there
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      06-27-2013, 07:19 PM   #7
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Nitrous does wonders, ask me how I know.
Zero interest in n2o. It's good if you are a drag racer but in the real world it doesn't make much sense to me.
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      06-27-2013, 07:19 PM   #8
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Nitrous does wonders, ask me how I know.
You have seen too many F and F movies
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      06-27-2013, 07:20 PM   #9
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Quote:
Originally Posted by matty088 View Post
It wasn't my intention to blame Cobb.

But I am shocked at the lack of pull as the rpms get up there
Yup. Get a new FMIC, thats a good place to start. The stock IC is
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      06-27-2013, 07:22 PM   #10
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Yup. Get a new FMIC, thats a good place to start. The stock IC is
I find myself shifting early as it seems there is no reason to go past 6k
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      06-27-2013, 07:49 PM   #11
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My plugs have 38k on em. Should I change them. Car seems to run fine though
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      06-27-2013, 08:13 PM   #12
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Quote:
Originally Posted by matty088 View Post
It wasn't my intention to blame Cobb. Not sure how you came to that conclusion.

But I am shocked at the lack of pull as the rpms get up there
I'm guessing it was cause of the title of this thread....

If you know that cobb has nothing to do with lack of top end grunt, it is kind of a weird/misleadingish title you decided to go with.
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      06-27-2013, 08:21 PM   #13
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Quote:
Originally Posted by matty088 View Post
I love my Cobb but man do these cars fall on their face above 5700 rpms. Will adding a fmic and running stage1+ help?
Stage 1+ has an even bigger midrange peak. If your goal is a flatter torque curve that will take you the wrong direction. If you use ATR you can add some top end...and the IC would help a bit and downpipes would help a lot. But as others have said it's hard to escape the physics of undersized turbos.
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      06-27-2013, 09:24 PM   #14
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Quote:
Originally Posted by matty088
Quote:
Originally Posted by 135Pats View Post
Yup. Get a new FMIC, thats a good place to start. The stock IC is
I find myself shifting early as it seems there is no reason to go past 6k
There isn't. With the stock turbos regardless of bolt ons there is no practical reason to push it past 6000 rpm.
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      06-28-2013, 08:21 PM   #15
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Quote:
Originally Posted by Carl Morris View Post
Stage 1+ has an even bigger midrange peak. If your goal is a flatter torque curve that will take you the wrong direction. If you use ATR you can add some top end...and the IC would help a bit and downpipes would help a lot. But as others have said it's hard to escape the physics of undersized turbos.
What is ATR?
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      06-28-2013, 09:23 PM   #16
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Quote:
Originally Posted by matty088 View Post
What is ATR?
AccessTunerRACE
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      06-28-2013, 11:16 PM   #17
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Yeah, it's just Cobb software that lets you edit the Cobb maps as desired.
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      06-29-2013, 02:51 AM   #18
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I hate when people put misleading titles.

It has nothing to do with Cobb period. The N54 is not a high revving engine nor it produces extreme amount of power at top end. If you need a top end power please buy an M3.
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      06-29-2013, 04:08 AM   #19
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Change your plugs OP... Get a DCI, FMIC, CP, and DPs so the car can breath. Then you'll have more HP up top. Has very little to do with the tune without the supporting mods, the car won't perform without them.
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      06-29-2013, 09:14 AM   #20
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Quote:
Originally Posted by Kayani_1 View Post
nor it produces extreme amount of power at top end. If you need a top end power please buy an M3.
That's not accurate. It's the turbos. Upgrade them and boom, top-end.
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      06-29-2013, 09:24 AM   #21
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Quote:
Originally Posted by The Ghost View Post
That's not accurate. It's the turbos. Upgrade them and boom, top-end.
Yeah but regardless of what turbo or turbo's you install you will not be able to spin to 8000 rpm's , but then again the m3 is not a torque monster down low. They are two totally different types of engines.
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      06-29-2013, 09:52 AM   #22
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No one is talking about 8k. He talking about revving past 6k on stock ish car.
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