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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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      04-26-2013, 03:04 PM   #7437
unic66
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2008 335I 6spd with Cobb stg1 Agg tune

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
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      04-26-2013, 03:11 PM   #7438
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Quote:
Originally Posted by unic66 View Post
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
I'd step on my own grandmother to have those timing numbers with stage1+fmic aggressive .
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      04-26-2013, 03:34 PM   #7439
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I think the IAT numbers were about 10 F higher this time around!
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      04-26-2013, 03:54 PM   #7440
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So I'm getting ready to add my e85 in (2 gallons) if I decide not to run it or don't see a vast difference is it something that I'll be able to stop using it and not cause problems, or is it like once you dump in e85 you better always do it?
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      04-26-2013, 03:57 PM   #7441
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Quote:
Originally Posted by 335iRlz View Post
So I'm getting ready to add my e85 in (2 gallons) if I decide not to run it or don't see a vast difference is it something that I'll be able to stop using it and not cause problems, or is it like once you dump in e85 you better always do it?
no it doesn;t matter, use it whenever you want. Although you will notice a vast difference, if you don't it means you're running the wrong map
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      04-26-2013, 04:00 PM   #7442
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Quote:
Originally Posted by marv85 View Post
no it doesn;t matter, use it whenever you want. Although you will notice a vast difference, if you don't it means you're running the wrong map

I'm gunna like it huh

Wait so I should I be running e30 maps with just 3 gallons?
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      04-26-2013, 04:04 PM   #7443
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Quote:
Originally Posted by 335iRlz View Post
I'm gunna like it huh

Wait so I should I be running e30 maps with just 3 gallons?
Are you FBO?

E30 needs more than three gallons.

http://www.dsmtuners.com/sub.php?page=e85calculator

use the link above to calculate how much you need to add, the second table specifically.

if you are adding E85 to correct the timing for an AGG stage1/1+/2+ tune then what you;re doing is fine... but for E30 you need to be FBO and use the calculator to add in. if your regular gas is 91, then target E40...

Also drive for a while (5-10 mins) before gunning it hard.
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      04-26-2013, 04:07 PM   #7444
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Quote:
Originally Posted by marv85 View Post
Are you FBO?

E30 needs more than three gallons.

http://www.dsmtuners.com/sub.php?page=e85calculator

use the link above to calculate how much you need to add, the second table specifically.

if you are adding E85 to correct the timing for an AGG stage1/1+/2+ tune then what you;re doing is fine... but for E30 you need to be FBO and use the calculator to add in. if your regular gas is 91, then target E40...

Also drive for a while (5-10 mins) before gunning it hard.
That. Yeah I'm on the fence about doing FBO + Turbo's and BBK until I'm sure these timings can be cleaned up.. No sense spending money on a horse that might be past its prime

I spent 30 minutes finding an actual authorized shell station and what a difference the tank has mad the last 4 have been awful..
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      04-26-2013, 04:13 PM   #7445
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Quote:
Originally Posted by 335iRlz View Post
That. Yeah I'm on the fence about doing FBO + Turbo's and BBK until I'm sure these timings can be cleaned up.. No sense spending money on a horse that might be past its prime

I spent 30 minutes finding an actual authorized shell station and what a difference the tank has mad the last 4 have been awful..
Most of the time these corrections can be corrected. it's not only about fuel but also your hardware. Spark plugs, coils, etc...

My previous '07 E90 @ 89k was running 21psi and 16.5 degrees of timing with no drops...

and yes, I've seen huge difference from station to station.
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      04-26-2013, 04:20 PM   #7446
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Quote:
Originally Posted by marv85 View Post
Most of the time these corrections can be corrected. it's not only about fuel but also your hardware. Spark plugs, coils, etc...

My previous '07 E90 @ 89k was running 21psi and 16.5 degrees of timing with no drops...

and yes, I've seen huge difference from station to station.
How long should I wait after adding to start logging? Would it just instantly change it with just 3 gallons?
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      04-26-2013, 06:52 PM   #7447
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just went to Stage 2+ agr here is my log, I think it looks ok.
Attached Files
File Type: zip datalog6.csv.zip (4.4 KB, 96 views)
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      04-26-2013, 07:19 PM   #7448
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Car seems to love 3.1 gallons! Hope the logs back up idle/ wot
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      04-26-2013, 07:41 PM   #7449
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Quote:
Originally Posted by Phantom 335i View Post
just went to Stage 2+ agr here is my log, I think it looks ok.
Looks good man, a very mild overboost at ~3700rpms but not enough to really cause throttle trimming or timing corrections so i wouldn't worry about it unless it gets worse(which it probably won't.)
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      04-26-2013, 07:42 PM   #7450
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Quote:
Originally Posted by Ænema View Post
Looks good man, a very mild overboost at ~3700rpms but not enough to really cause throttle trimming or timing corrections so i wouldn't worry about it unless it gets worse(which it probably won't.)
Awesome thanks. Now what about not hitting load targets?
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      04-26-2013, 07:49 PM   #7451
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Originally Posted by Phantom 335i View Post
Awesome thanks. Now what about not hitting load targets?
Load "targets" is a bit misleading. Think of it more as load "ceiling" because it is there to establish a max load that the DME will allow the engine to make. In fact, you don't want to hit/exceed load targets because odd things with timing tends to happen.

What's important is that you're hitting boost targets, as long as boost is on target then everything is as it should be as far as load is concerned.
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      04-26-2013, 07:53 PM   #7452
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Awesome thank you very much. I am unable to use atr (stupid Mac) but I am thinking of a protune in the near future
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      04-26-2013, 08:16 PM   #7453
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E85 looks to be a godsend although still looks like some corrections at the top end :/

DL1 = first wot immediately after e85
DL2 = after about 20 miles
DL3 = after about 32 miles

I was breaking the law very bad to get these I wonder if I got pulled over doing 100 over the officer would let me go because I was datalogging
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File Type: zip Stage1 agg+ New logs.zip (20.5 KB, 97 views)
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      04-26-2013, 08:30 PM   #7454
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Quote:
Originally Posted by Phantom 335i View Post
Awesome thank you very much. I am unable to use atr (stupid Mac) but I am thinking of a protune in the near future
i have a mac and use atr fine....
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      04-26-2013, 08:48 PM   #7455
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Originally Posted by enrita View Post
i have a mac and use atr fine....
I thought it was for pc only?
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      04-27-2013, 10:18 AM   #7456
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e85 question I used about a half tank after toping it off with e85 yesterday at what point on the fuel bar will I need to put more in.. I've never been a fan of running it down to the bottom bar.
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      04-27-2013, 10:37 AM   #7457
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Quote:
Originally Posted by Phantom 335i View Post
I thought it was for pc only?
you need parallels or another Virtual machine running on the mac.
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      04-27-2013, 10:46 AM   #7458
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Quote:
Originally Posted by 335iRlz View Post
E85 looks to be a godsend although still looks like some corrections at the top end :/

DL1 = first wot immediately after e85
DL2 = after about 20 miles
DL3 = after about 32 miles

I was breaking the law very bad to get these I wonder if I got pulled over doing 100 over the officer would let me go because I was datalogging
well corrections can be due to other things beside octane

I'm glad you're liking it.
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