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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 > OpenFlash Stage 1 Datalog



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      08-19-2013, 08:46 AM   #1
Nonecure
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OpenFlash Stage 1 Datalog

2009 E90 335xi
60,000 miles 6AT
DCI, 7" VRSF FMIC 93 Octane
Stage 1 Open Flash

3rd gear pull about 80 degrees out and humid.

What does the experts think? Seems to me that I'm a little lean at full boost.
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      08-19-2013, 08:51 AM   #2
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The one thing this datalog definitely showed me is how badly i really need an intercooler haha i wish my temps were that low after a quick run
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      08-19-2013, 08:56 AM   #3
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From what I know about the actual table values in the OFT STG 1 and just looking at the logs you provided, you are right on target.
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      08-19-2013, 09:00 AM   #4
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Logs look good. I am used to seeing around 12.1 AFR's with Cobb. Does this map target around 11.5?
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      08-19-2013, 09:06 AM   #5
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Can you view openflash logs in excel like cobb?
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      08-19-2013, 09:12 AM   #6
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Quote:
Originally Posted by nelsonmg View Post
Can you view openflash logs in excel like cobb?
yes you can just save it as a csv file.
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      08-19-2013, 09:14 AM   #7
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Quote:
Originally Posted by Alessandro
Quote:
Originally Posted by nelsonmg View Post
Can you view openflash logs in excel like cobb?
yes you can just save it as a csv file.
Cool thnks. Once they get cylinder 2-6 logging it would be pretty useful.
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      08-19-2013, 10:25 AM   #8
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Looks good to me. Right on target.
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      08-19-2013, 10:56 AM   #9
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Yep....pretty much the target for 4K rpm.
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      08-19-2013, 11:56 AM   #10
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Quote:
Originally Posted by JStang View Post
Logs look good. I am used to seeing around 12.1 AFR's with Cobb. Does this map target around 11.5?
Yes, it targets 11.2.

edit: man, I'm getting slow... LOL
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      08-19-2013, 12:27 PM   #11
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Quote:
Originally Posted by #teambimmer View Post
The one thing this datalog definitely showed me is how badly i really need an intercooler haha i wish my temps were that low after a quick run
That pull was after a hour of driving around and was my 2nd pull. I have been very happy with the VRSF intercooler.
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      08-19-2013, 12:34 PM   #12
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Thanks everyone for your feedback! The tune feels really good to me and I was just wanting to make sure.

Ilma, you picked column 180, what does that number represent?

I guess it's time to put my Cobb up for sale and change my sig. So far I am really happy with this tune, but I will get more driving time in before I post a review.
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      08-19-2013, 01:31 PM   #13
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Quote:
Originally Posted by Nonecure View Post
Thanks everyone for your feedback! The tune feels really good to me and I was just wanting to make sure.

Ilma, you picked column 180, what does that number represent?

I guess it's time to put my Cobb up for sale and change my sig. So far I am really happy with this tune, but I will get more driving time in before I post a review.
I believe thats the load factor.

The stock DME logic controls boost according to load and since this is an OTS stage 1 flash.....it is using stock boost control logic.

At a load of 190 the DME will target around 18 psi to hit the requested load at that particular rpm range which is where you are at with boost on your log.

Load gets all complicated and is not straightforward like boost is - but that's the simplest explanation.

Here is the load table by rpm:
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Last edited by Ilma; 08-19-2013 at 01:38 PM..
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      08-19-2013, 01:40 PM   #14
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Quote:
Originally Posted by Nonecure View Post
Thanks everyone for your feedback! The tune feels really good to me and I was just wanting to make sure.

Ilma, you picked column 180, what does that number represent?

I guess it's time to put my Cobb up for sale and change my sig. So far I am really happy with this tune, but I will get more driving time in before I post a review.


I sent you an email earlier today btw
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