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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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      05-02-2013, 01:05 AM   #7547
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Originally Posted by 335iRlz View Post
3rd log = crazy wot from 80 to I think 150 lol was raining and trying to focus on the road
What are you doing?
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      05-02-2013, 02:31 AM   #7548
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What are you doing?
open road, two cars, 10000s of feet of space, not scared... Save the preaching for Sunday it's only Thursday

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Originally Posted by marv85 View Post
I haven't ooked at the logs yet, but as you run down the tank, E85 doesn't dilute. the ratio stays the same
Either way I just set up an appointment for Brakes front and back, Coils (sat down and looked over all my records I can't find them ever being changed ) and Sparks (coming up on 11k), and an Oil change (1000 miles from 7500k) can't wait to see if it helps my aggressive! As I can hopefully wean off the e85 I must have used too much because after I filled up with 10 gallons of 93 last night I threw the lean codes in bank 1 and SES light... I backed it down to sport+fmic until after finals in a week.

Last edited by 335iRlz; 05-02-2013 at 04:35 PM.
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      05-02-2013, 11:33 PM   #7549
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It seems like I am losing power can someone tell me why,please?
On virtual Dyno,I lost about 60 ft/lb of torque?
Here is the Datalog:https://docs.google.com/spreadsheet/...VE&usp=sharing
The car feels like its not going to go fast at first but than it does?
As you can see above the log looks good!
This is a stage 1 aggressive on a 08 335I

Last edited by unic66; 05-02-2013 at 11:38 PM.
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      05-03-2013, 04:03 AM   #7550
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The car feels like its not going to go fast at first but than it does?
As you can see above the log looks good!
This is a stage 1 aggressive on a 08 335I
You're probably just feeling the first second or so where it takes to build the boost.
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      05-03-2013, 06:18 PM   #7551
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open road, two cars, 10000s of feet of space, not scared... Save the preaching for Sunday it's only Thursday



.

I ended up traveling wrong way down a deserted motorway doing wot with traction control off. With lsd, when lack of traction bites, it bites hard and fast. I'd say it's easier to catch in the bends because you aren't at wot then and you have something to correct against. Don't get complaisant ( mean that in a nice way)
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      05-03-2013, 08:29 PM   #7552
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Hey all: posted a few questions a while back. Any help would be much appreciated!

I have the ppk and bmw performance exhaust on my 2010 e90 335. I believe the ppk is just a flash tune done by bmw, picked up the car used with it already.

So what happens if I do a COBB flash, do I loose my ppk?
If I reflash back to stock will it be the ppk tune or will I loose it all together and go back to full stock?
Also, does the COBB kill the engine overrun exhaust gurgle that comes along with the ppk tune?

Thanks!
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      05-04-2013, 05:05 PM   #7553
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Anyone have any concerns running 21.5psi boost pressure (what I saw on my last log)? Was running Stage 1 Aggressive + FMIC, plenty happy with the power but I'm worried about the pressure. Can an eTuner set me up with a map for decent power but limit the boost to 14 or 15 psi to be on the safe side?
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      05-04-2013, 09:36 PM   #7554
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Anyone have any concerns running 21.5psi boost pressure (what I saw on my last log)? Was running Stage 1 Aggressive + FMIC, plenty happy with the power but I'm worried about the pressure. Can an eTuner set me up with a map for decent power but limit the boost to 14 or 15 psi to be on the safe side?
You were hitting 21psi on stg1+ ?
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      05-04-2013, 10:45 PM   #7555
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Quote:
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Anyone have any concerns running 21.5psi boost pressure (what I saw on my last log)? Was running Stage 1 Aggressive + FMIC, plenty happy with the power but I'm worried about the pressure. Can an eTuner set me up with a map for decent power but limit the boost to 14 or 15 psi to be on the safe side?
You sure you didn't see a boost spike mid shift? Post up the log.
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      05-05-2013, 07:52 AM   #7556
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Here's a log while I was running Stage 1 aggresive. Not a very good log but I'm not running a tune at the momement. Normal?
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File Type: zip 335is.zip (3.6 KB, 17 views)
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      05-05-2013, 09:30 AM   #7557
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[quote=stupordave;13935899]Here's a log while I was running Stage 1 aggresive. Not a very good log but I'm not running a tune at the momement. Normal?[/QUOTE

looks good ....
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      05-05-2013, 01:50 PM   #7558
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[quote=cwarren;13936153]
Quote:
Originally Posted by stupordave View Post
Here's a log while I was running Stage 1 aggresive. Not a very good log but I'm not running a tune at the momement. Normal?[/QUOTE

looks good ....
Thanks. Am I being paranoid? Think it's a mistake to go with a pro-tune to limit the boost pressures to 14 or so? Will I be giving up a bunch of HP?
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      05-05-2013, 02:08 PM   #7559
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Hey guys,
since the valet map runs no boost, does that mean that it is something like a gas saver map?
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      05-05-2013, 07:15 PM   #7560
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Hey guys,
since the valet map runs no boost, does that mean that it is something like a gas saver map?
Never tried it and I haven't heard about anyone testing it. Very interesting idea. Why don't you try it and report back? I'd do it myself but just filled up with my E85 / Shell VPower 93 mix that I love right now.
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      05-05-2013, 07:28 PM   #7561
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Here's a log while I was running Stage 1 aggresive. Not a very good log but I'm not running a tune at the momement. Normal?
Are you using 93 octane gasoline and is your stg1 Aggressive smooth when you get on it?
I am also using the stg1 Aggressive,but I use a bottle of Lucas Oil octane booster mixed with 91 octane for every fill up!My logs are as clean as yours but my 08 335i is only boosting at 15+ Psi,I think my car is chocking because it goes from an AFR of 15 to an AFR of 12 especially when it is a little warm out.
Comparing a GIAC stg1 93 oct vs the Cobb stg1 Aggressive,You can see that the Cobb runs richer starting at spool up!
On the long run,This translates to Carbon deposits in the combustion chamber,on the wide band o2 sensors and in the catalytic converters
I really love my Cobb,however I need to be aware of the consequences of this particular tune coming from a smooth but yet strong GIAC stg1 with outstanding driveability!
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      05-05-2013, 08:04 PM   #7562
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Yeah. Running 93 VPower. It's always run smooth, even running aggressive +FMIC. I've driving without a tune for the last few days and am considering just leaving it off. Just seems like a more refined car with plenty of power. So much for the $6k I sunk in Dinan goodies.
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      05-06-2013, 07:49 AM   #7563
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Datalog interpretation

So, finally here are 2 logs I did over the weekend. I remember on one of them traction control was left ON however I do not remember which one. I am running stage 1 aggresive / 93 Octane.
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File Type: pdf datalog 1.pdf (364.0 KB, 24 views)
File Type: pdf datalog 2.pdf (380.4 KB, 22 views)
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      05-06-2013, 11:30 AM   #7564
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What is the Cobb team working on now? I mean in regards to adding new features for our cars? Maybe NLS or launch control?
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      05-06-2013, 12:59 PM   #7565
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What is the Cobb team working on now? I mean in regards to adding new features for our cars? Maybe NLS or launch control?
I doubt they will do those. Its not available from the factory
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      05-06-2013, 04:27 PM   #7566
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You can already set the Gear 0 rev limit anywhere you want using ATR, and it works any time the clutch is in. The problem is that it uses the throttle to limit rpm instead of fuel cut, AND you get the funky timing behavior that it uses when it thinks you hit the rev limiter. Both of those things would have to be addressed in code to make it useable.
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      05-06-2013, 11:08 PM   #7567
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So, finally here are 2 logs I did over the weekend. I remember on one of them traction control was left ON however I do not remember which one. I am running stage 1 aggresive / 93 Octane.
I think it was probably the first log where you had traction control on. The second log looks better (TPS is supposed to be in the 80-81% range).

You have some timing corrections, but I've seen worse. It looks like the timing corrections started even before you started your pull in the second log. In the first log, the timing corrections happened at a different point than in the second log. I would say that it's probably fine because there are even some timing corrections on stock maps. You could try to lower timing slightly in ATR or see if there are no timing corrections using the stage 1 sport. The corrections could also be due to having a lower quality gas.

The only major concern I'd have is those temperatures. If I were you, I'd get an FMIC as soon as I could. You'll have less and less power when you do back to back pulls with the stock unit.
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      05-08-2013, 09:34 AM   #7568
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So I'm throwing lean bank 1 codes and I've been off e85 for a tank now should I just keep running 93 through the car?
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