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2Addicts | BMW 2-Series forum Technical Topics N20 (228i) / B46 (230i) Engine, Transmission, Exhaust, Tuning GSR Technik 228i N20 ECU Flash Tune Now Available 50whp/90wtq

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      04-26-2015, 09:14 PM   #1
GSR Technik
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GSR Technik 228i N20 ECU Flash Tune Now Available 50whp/90wtq

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Greetings 2-Series Community!

Some of you may have seen the 2Addicts thread covering the development of our 228i into a Pirelli World Challenge TCA Class racecar. We have a great group of development partners and are excited to start offering new products based on all the development work we have done over the last year or so.

Check out the 228i thread:
http://www.2addicts.com/forums/showthread.php?t=1117222

We’d like to official announce the launch of a proper ECU flash tune for the 228i achieving approximately 50whp and 90wtq over stock. The dyno graph below is tune only on 91 octane – with listed modifications. This is an ECU flash tune (not piggyback) so it does require access to the ECU. Removal of the ECU is fairly simple – we should have a how to video up shortly. For those of you in Southern California – removal, flash and reinstallation of the ECU can be done at our shop in about 1-2 hours.

Stage 2:


___________________________________


Stage 1:

Last edited by GSR Technik; 04-26-2015 at 11:16 PM.
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      04-26-2015, 10:14 PM   #2
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Looks good for 91 octane
And better price than Dinan good job!
Look forward to seeing some reviews by forum members
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      04-26-2015, 10:32 PM   #3
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Def subscribed for updates. Looking forward to buying it.
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      04-26-2015, 10:34 PM   #4
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What would be the turn around time outside of California?
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      04-26-2015, 10:51 PM   #5
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Quote:
Originally Posted by Amessforone View Post
What would be the turn around time outside of California?
Once we get the ECU we can turn around same day so it just comes down to shipping time.
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      04-27-2015, 04:13 AM   #6
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Can the dealer detect the flash?
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      04-27-2015, 09:14 AM   #7
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Are you furthering this into the M235i? Also, all of your pictures are broken for me.
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      04-27-2015, 10:04 AM   #8
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GSR Autosport Stage1 image for 428 is wrong I believe its showing 203hp/234tq ... Max 241/279 those numbers don't look right
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      04-27-2015, 10:42 AM   #9
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Quote:
Originally Posted by ROBNYC View Post
GSR Autosport Stage1 image for 428 is wrong I believe its showing 203hp/234tq ... Max 241/279 those numbers don't look right
It doesn't matter what the numbers are. Only the delta. And they show a 40hp and 45lbs increase. Which is pretty good.

Dynos are not necessarily an absolute value but rather useful to show a difference. That's why same day/conditions are imperative.

Since the 4 has the same engine just add +40/45 to the 228 stock dyno.
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      04-27-2015, 11:06 AM   #10
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      04-28-2015, 12:05 AM   #11
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Quote:
Originally Posted by uberspeed View Post
Can the dealer detect the flash?
TIA
This is a bench tune directly into the ECU so the dealer cannot detect tune.
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      04-28-2015, 12:08 AM   #12
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Quote:
Originally Posted by alz0rz View Post
Are you furthering this into the M235i? Also, all of your pictures are broken for me.
Check again to see if dyno pics are there. They seem to be showing up. We are refining the M235i. We should have the car back on the dyno later this week or early next week. Will post results when we have solid numbers.
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      04-28-2015, 12:40 PM   #13
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Quote:
Originally Posted by GSR Autosport
Quote:
Originally Posted by uberspeed View Post
Can the dealer detect the flash?
TIA
This is a bench tune directly into the ECU so the dealer cannot detect tune.
How does that work? So the dealer cannot see an ECU tune? Excuse my ignorance I just don't get how that works.
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      04-28-2015, 12:46 PM   #14
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Why are ecu tunes so more expensive than say the piggy back setup JB4, afe scrocher etc?
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      04-28-2015, 04:47 PM   #15
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Wow. Love the torque!
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      04-28-2015, 09:26 PM   #16
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Quote:
Originally Posted by dalrx
Why are ecu tunes so more expensive than say the piggy back setup JB4, afe scrocher etc?
They control more than just boost. Timing etc... Not to mention they are a full remap of the computer which takes much longer research and effort in creating
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      04-29-2015, 05:15 PM   #17
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What are the advantages of an ecu flash over a piggyback like BMS?
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      04-29-2015, 06:37 PM   #18
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Quote:
Originally Posted by Thescout13 View Post
How does that work? So the dealer cannot see an ECU tune? Excuse my ignorance I just don't get how that works.
So it's not being done through the OBDII port which a lot times has counters on how many times the interface has been used to load something new.

It's done by plugging directly into the ECU using tools that are derived from the tools that are used to develop the systems, such companies as Siemens or Bosch. The code in raw state is a bunch of binary so these tools allow you look at the code and make changes to the binary that is interpreted by the embedded systems (hardware/software). There is a checksum that gets calculated from the binary to check to see if any of the binary code has been changed. These checksums need to be recalculated if you make any changes to the binary code - these types of tools allow you to do that.

So when dealers are plugging into the cars for general diagnostics they aren't designed to look at the binary directly and say this fuel map has been changed from what is expected.

That's at least the basic idea. There are empirical things anyone could do to test like check to see if the car will go faster than the speed limiter or monitoring boost on a dyno to see if boost is exceeding factory specifications but typically dealers are not doing those types of things.
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      04-29-2015, 07:00 PM   #19
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Quote:
Originally Posted by GSR Autosport View Post
Check again to see if dyno pics are there. They seem to be showing up. We are refining the M235i. We should have the car back on the dyno later this week or early next week. Will post results when we have solid numbers.
So wait, are you saying a proper flash tune is coming to the M235i?? You guys were able to crack the ECU? If so, COUNT ME IN.
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      04-29-2015, 08:41 PM   #20
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Quote:
Originally Posted by configt View Post
So wait, are you saying a proper flash tune is coming to the M235i?? You guys were able to crack the ECU? If so, COUNT ME IN.
They are not the first for sure but it seems this is the first, that I've seen, offering here in the US and at a reasonable price.
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      04-29-2015, 08:45 PM   #21
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Quote:
Originally Posted by GSR Autosport
Quote:
Originally Posted by Thescout13 View Post
How does that work? So the dealer cannot see an ECU tune? Excuse my ignorance I just don't get how that works.
So it's not being done through the OBDII port which a lot times has counters on how many times the interface has been used to load something new.

It's done by plugging directly into the ECU using tools that are derived from the tools that are used to develop the systems, such companies as Siemens or Bosch. The code in raw state is a bunch of binary so these tools allow you look at the code and make changes to the binary that is interpreted by the embedded systems (hardware/software). There is a checksum that gets calculated from the binary to check to see if any of the binary code has been changed. These checksums need to be recalculated if you make any changes to the binary code - these types of tools allow you to do that.

So when dealers are plugging into the cars for general diagnostics they aren't designed to look at the binary directly and say this fuel map has been changed from what is expected.

That's at least the basic idea. There are empirical things anyone could do to test like check to see if the car will go faster than the speed limiter or monitoring boost on a dyno to see if boost is exceeding factory specifications but typically dealers are not doing those types of things.
Thanks for the info.

That actually makes a lot of sense how you describe it.
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      04-29-2015, 11:37 PM   #22
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Quote:
Originally Posted by configt View Post
So wait, are you saying a proper flash tune is coming to the M235i?? You guys were able to crack the ECU? If so, COUNT ME IN.
Yes, we have the tools that can crack the ECU. We are trying to get an M235i on the dyno next week. If we do we will post dyno numbers.

If there is anyone else who is interested in an ECU flash tune for their M235i let us know - we will give you a GREAT deal. If you are not 100% satisfied we'll flash it back to stock and you will be no worse for wear. Need to be in SoCal so we can verify everything on the dyno before we return the car into the wild.
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