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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 > All COBB Tuning AccessPORT Flash for N54 335i Discussion Here



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      07-25-2011, 03:49 PM   #1871
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Quote:
Originally Posted by remington109 View Post
Anyone heard any inside info about meth integration? This is a must and it looks like Vishnu has a good head start.
there is no "meth integration" kit or anything like that. if u want to add meth u can do so with an open source tune using the atr software that they will make available. u can do it yourself or u can have a tuner shop do it for u. if u want to add race gas u can make a tune for that. if u want to add e85 u can have a tune for that. if u want to add nitrous u can have a tune for that. u get the idea. the possibilities are endless
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      07-25-2011, 04:01 PM   #1872
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Quote:
Originally Posted by remington109 View Post
Anyone heard any inside info about meth integration? This is a must and it looks like Vishnu has a good head start.
They have noted there will be meth maps, still need stage 2 before we can expect those to be released.

Its definetly feasible given the kits out there.
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      07-25-2011, 04:45 PM   #1873
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Quote:
Originally Posted by EastCoast335i View Post
Hi,
I'm waiting to receive my Cobb AP tomorrow and have already downloaded the AP Manager. After some more reading I came upon Cobb's Map Database.

How do I determine my ECU type? So I can DL the appropriate maps? Or is this done automatically after connecting the Cobb?
I742S
I761S
I860S
I880S
I890S
I8A0S
IF80S
IGD0S
IHE0S
IJC0S
IJE0S
There may be another way, but the AP will show you.
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      07-25-2011, 04:52 PM   #1874
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Quote:
Originally Posted by remington109 View Post
Anyone heard any inside info about meth integration? This is a must and it looks like Vishnu has a good head start.
Meth integration is not as readily available as the Piggybacks currently. They allow a 5v connection from your typical failsafes and flow sensors that can be read by the tune, and the tune can then in turn run the appropriate map for meth.

Currently flash tunes dont have such integration technically.

You can however still add methanol to a flash tune. You would just need to have it tuned for the meth when ATR and PRO tune becomes available.

I would recommend a flow gauge and 3rd party protections in case of meth failure.

As of today nothing beats the methanol integration of the PROcede and its mapping functions.
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      07-25-2011, 06:11 PM   #1875
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Quote:
Originally Posted by danielfastv6 View Post
Well I have had my AP for about a month now and all has been great. But now sence the new update is out with new maps ( 203v). for some reason my AP wont update, it goes throu the steps 1 of 7 then says reflashing AP steps 1 of 2 and 2 of 2 but then stops and says Error and doesnt do anything .... PLEASE HELP thanks please P.M. if you can help. I will call COBB to see if they can help as well
Sir, you have a PM. Feel free to email me or give us a call. Either way we'll get you taken care of.

Cheers,
Rob
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      07-25-2011, 06:16 PM   #1876
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Quote:
Originally Posted by EastCoast335i View Post
Hi,
I'm waiting to receive my Cobb AP tomorrow and have already downloaded the AP Manager. After some more reading I came upon Cobb's Map Database.

How do I determine my ECU type? So I can DL the appropriate maps? Or is this done automatically after connecting the Cobb?
I742S
I761S
I860S
I880S
I890S
I8A0S
IF80S
IGD0S
IHE0S
IJC0S
IJE0S
The AP will determine what ECU ROM revision you have on install and give options for the proper maps. Once your AP is installed it can tell you what ROM revision you have by following these instructions:

1. Power your AP.
2. Scroll down to "AccessPORT" and click "OK"
3. Click on "About" Click OK.
4. Scroll down to "Vehicle" and tell me what it says.

From there you can download any of the alternate throttle maps.

Cheers,
Rob
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      07-25-2011, 09:34 PM   #1877
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Quote:
Originally Posted by Zasquatch View Post
Am I the only one that will be trying stage 2 or 2+ with FBO but no full exhaust? I've always thought the cattless downpipes were the important part, and the rest of the exhaust was mainly just for sound/cosmetics...
You're not alone... I understand the most significant restriction/gains in the exhaust section are the downpipes. The secondary cats and downstream piping can support +400whp without much concern except for cases where the cats are exposed to prolonged high EGTs, either as a product of the tune or the driving situation.

I don't know where the "TBE" thing comes from outside of the Subaru community, where it's actually relevant to tuning. I like to refer to our exhaust system in sections, with the downpipes as the first section, midpipes and crossover in the second section and "axle-back" mufflers-to-tips as the third section.
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      07-25-2011, 09:37 PM   #1878
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Quote:
Originally Posted by Imperator View Post
You're not alone... I understand the most significant restriction/gains in the exhaust section are the downpipes. The secondary cats and downstream piping can support +400whp without much concern except for cases where the cats are exposed to prolonged high EGTs, either as a product of the tune or the driving situation.

I don't know where the "TBE" thing comes from outside of the Subaru community, where it's actually relevant to tuning. I like to refer to our exhaust system in sections, with the downpipes as the first section, midpipes and crossover in the second section and "axle-back" mufflers-to-tips as the third section.
Careful with those sections after the dp's - if you have an E90, the exhaust is, quite helpfully, one piece. :P Not sure if your E92 is the same, but it's one of the dumbest things ever for the E90, as you either have to cut it to play with resonators and mufflers, or swap whole.
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      07-25-2011, 10:22 PM   #1879
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You're right about the exhaust system being one-piece after the downpipes, it's just that some of the aftermarket upgrades split it into sections. There are a lot of "axle-back" muffler systems out there among full downpipe-back sections with the secondary cats removed.
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      07-25-2011, 10:24 PM   #1880
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Quote:
Originally Posted by Imperator View Post
You're right about the exhaust system being one-piece after the downpipes, it's just that some of the aftermarket upgrades split it into sections. There are a lot of "axle-back" muffler systems out there among full downpipe-back sections with the secondary cats removed.
No, fair enough, but what I meant was that sadly, ANY upgrade of a stock N54 / N55 exhaust in such a way as to keep it intact seems to require a full swap (following which you can splice and dice the aftermarket exhaust as you want, as they are never a single piece), unlike the M3 where you could swap the midpipes or the mufflers at leisure. Doh.
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      07-29-2011, 11:52 AM   #1881
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Excited for the release of Stg. 2...my pockets will get a little bit lighter for the DPs, exhaust, and extra gas I will be wasting enjoying my car!
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      07-31-2011, 01:34 PM   #1882
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How sturdy is the stock clutch against the Cobb tune (or any)?
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      07-31-2011, 03:53 PM   #1883
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How sturdy is the stock clutch against the Cobb tune (or any)?
I havn't had any trouble on Cobb nor Procede. 52k miles on the clock, tuned since 40k.
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      08-01-2011, 01:11 AM   #1884
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Originally Posted by ADVANT123 View Post
+1 for a FMIC + Intake Map
+3 for a FMIC + Intake Map
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      08-01-2011, 01:27 AM   #1885
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All hail!
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      08-01-2011, 09:26 PM   #1886
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Got my AP today, came with the latest firmware (not beta) so I loaded up the 91-Octane v203 map since it's quite hot and humid here, I would rather play it safe until the temps get cooler.

Took the car out for a spin, and it feels awesome.

Did some brief data logging, but only have a Macbook at home and will have to spend time at work charting the data so I can post and see if everything looks alright to those more knowledgeable.

Loving it so far though, finally feels like I have my car back, it's felt awful since my last dealer visit when they replaced the HPFP and did the computer upgrade. It's like they completely destroyed the low end of the car, even though mileage got significantly better, I didn't buy this car to get good fuel economy.
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      08-01-2011, 09:47 PM   #1887
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all I have to say is watch out~
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      08-01-2011, 11:44 PM   #1888
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Slimmy,

I just got mine as well and I went for the gusto.. 93 octane map.. car is pretty crazy, I love it. Feels a bit more intense than the PROcede with the V4 auto tuning maps I was using just a couple weeks ago. Why bother with 91 octane maps, if you're truly using 93 octane?
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      08-01-2011, 11:51 PM   #1889
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to be honest, the 93 octane stage 1 map's timing curve is extremely conservative. People are getting bent out of shape over nothing. Yes, sustaining 16 psi when IATs are high is somewhat troubling given the knowledge established on these forums, but in reality, the compressors are not outside their given efficiency range, and boost tapers off significantly past 6000 RPM, so contrary to popular perception, no you are not running 16 psi sustained for any significant length of time.

How many times have you heard "omg my jb4/procede powered car is so slow wtf is wrong i only trapped 106" well, you won't hear that with the Cobb stage 1. You will make virtually the same power, regardless of conditions due to the load-based targeting, versus the PID-based boost targeting on the piggybacks. Considering Cobb does their testing in TX, I can confidently say their cars are put through some serious stress testing more so than what most of us will subject our cars through.

I own both piggybacks and know their pros and cons. Once stage 2 comes out, I'll be purchasing the Cobb AP as well.
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      08-02-2011, 09:23 AM   #1890
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Quote:
Originally Posted by pcmike View Post
Slimmy,

I just got mine as well and I went for the gusto.. 93 octane map.. car is pretty crazy, I love it. Feels a bit more intense than the PROcede with the V4 auto tuning maps I was using just a couple weeks ago. Why bother with 91 octane maps, if you're truly using 93 octane?
I'll switch to it soon, just wanted to try it out at 91 octane and see what the data looks like.

Here's what my first graph looks like, think this was the hardest I drove it on my brief test drive last night.

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      08-02-2011, 09:35 AM   #1891
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wow, thats just hard to look at and the numbers seem odd.

Like boost rising after you let off the gas?

RPMS never going over 5k?

Hard to review timing as you only got on it from 2.5k rpms to 5k rpms. Need to run it up to at least 6500 to ensure that no timing drops.

With the TPS Closures, i would guess tractions control was on maybe?
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      08-02-2011, 10:11 AM   #1892
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Yes, traction control was on, and I was just driving in normal mode, I'll have to try DS or M so I can control the RPM shift points.
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