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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > I cloned my MSV70 DME



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      09-23-2014, 10:14 AM   #67
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Quote:
Originally Posted by hassmaschine View Post
wouldn't that be stealing? maybe in his own thread.
How would it be stealing, you're not paying for the tunes, you're paying for the hardware.
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      09-23-2014, 12:18 PM   #68
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Quote:
Originally Posted by TheAxiom View Post
How would it be stealing, you're not paying for the tunes, you're paying for the hardware.
From my understanding it was supposed to end up being opened anyway, so we can make each of us our own custom tune from their basic tune file no?
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      09-23-2014, 01:04 PM   #69
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Quote:
Originally Posted by mecbain View Post
From my understanding it was supposed to end up being opened anyway, so we can make each of us our own custom tune from their basic tune file no?
That was the idea.
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      09-23-2014, 05:42 PM   #70
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I just found the thread that originated the OFT. post away.
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      09-23-2014, 11:00 PM   #71
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Guys, I'm not comfortable releasing Vishnu's maps out to the public. My map is not exactly as OTS as the n54/n55 ones are.

But I will tell you that the 5c71e (intake valve setpoint) map is altered in my tune. It is gradually more aggressive than stock, but does not feature the 330i higher lift earlier in the rev range.

People are questioning whether it can do this or whether it can do that, so let me explain something. The Vishnu OFT is used for downloading your stock .bin file, and uploading your tuned one. If you can change it in the .bin file, you can load it into your car.

All you need is knowledge of how the maps work and what effects it has on the vehicle. I can change anything from valve lift to throttle while the car is warming up the cats.

Anything that AA or Evolve, ect can do, can be done with the OFT. I could take an AA .bin file and flash it to my car with my OFT, if I really wanted to
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      09-23-2014, 11:29 PM   #72
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That was the point i was trying to make in the OFT thread when everyone said it was impossible to make your own tune. lol

Looking to take my car for a baseline soon.. then the fun begins!

Last edited by hassmaschine; 09-23-2014 at 11:35 PM.
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      09-24-2014, 03:05 AM   #73
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Quote:
Originally Posted by LaCross View Post
Guys, I'm not comfortable releasing Vishnu's maps out to the public. My map is not exactly as OTS as the n54/n55 ones are.

But I will tell you that the 5c71e (intake valve setpoint) map is altered in my tune. It is gradually more aggressive than stock, but does not feature the 330i higher lift earlier in the rev range.

People are questioning whether it can do this or whether it can do that, so let me explain something. The Vishnu OFT is used for downloading your stock .bin file, and uploading your tuned one. If you can change it in the .bin file, you can load it into your car.

All you need is knowledge of how the maps work and what effects it has on the vehicle. I can change anything from valve lift to throttle while the car is warming up the cats.

Anything that AA or Evolve, ect can do, can be done with the OFT. I could take an AA .bin file and flash it to my car with my OFT, if I really wanted to
So it's not altered. Got it.
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      09-24-2014, 10:39 AM   #74
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It doesn't matter. I'm not going to alter anything without being able to see exactly what effect it has.
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      09-25-2014, 04:15 AM   #75
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Quote:
Originally Posted by mecbain View Post
From my understanding it was supposed to end up being opened anyway, so we can make each of us our own custom tune from their basic tune file no?
Exactly. I was expecting Shiv to give us these kind of insights instead of hassmaschine.
And I am astonished that it seems that a 330i produces more power than a tuned 325i by Vishnu. Could that be true?

btw, really interesting thread Subscribed
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      09-25-2014, 08:29 AM   #76
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Quote:
Originally Posted by KingofKingz View Post
Exactly. I was expecting Shiv to give us these kind of insights instead of hassmaschine.
And I am astonished that it seems that a 330i produces more power than a tuned 325i by Vishnu. Could that be true?

btw, really interesting thread Subscribed
Yes it true. It's something that's been elusive for 325 guys even with a 3-stage manifold.
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      09-25-2014, 08:40 AM   #77
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Strange, as my car produces more torque and more power than a 330i and I have a better acceleration (5.7sec vs 6.0sec 0-100km/h)....
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      09-25-2014, 08:46 AM   #78
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isn't the 330i exhaust slightly different too?

there's so many factors, maps and curves that are different between the two, it's not that surprising. I really doubt many of the tuners have dug too deep considering the big gains and money are in the N54/N55 tunes.
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      09-25-2014, 08:52 AM   #79
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Yes, the 325i exhaust is much more restrictive than the 330i's
I can search for backpressure values, I know i have these lying around somewhere....
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      09-25-2014, 08:52 AM   #80
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Quote:
Originally Posted by hassmaschine View Post
isn't the 330i exhaust slightly different too?

there's so many factors, maps and curves that are different between the two, it's not that surprising. I really doubt many of the tuners have dug too deep considering the big gains and money are in the N54/N55 tunes.
well that's where you come in
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      09-25-2014, 09:44 AM   #81
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Quote:
Originally Posted by KingofKingz View Post
Yes, the 325i exhaust is much more restrictive than the 330i's
I can search for backpressure values, I know i have these lying around somewhere....
there are factors for backpressure I think as well. I should compare them.. too bad I'm working 70 hours this week.

I believe it's possible to flash the entire 330i file over to a 325i (making sure to leave the original 4kb eprom) but that might not be a good idea if there are physical differences like the exhaust. I want to test that theory on my spare DME by using the original test donor bin with my 4kb eprom. I'm thinking all the VIN/ISN data is stored there.
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      09-25-2014, 10:31 AM   #82
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Quote:
Originally Posted by hassmaschine View Post
there are factors for backpressure I think as well. I should compare them.. too bad I'm working 70 hours this week.

I believe it's possible to flash the entire 330i file over to a 325i (making sure to leave the original 4kb eprom) but that might not be a good idea if there are physical differences like the exhaust. I want to test that theory on my spare DME by using the original test donor bin with my 4kb eprom. I'm thinking all the VIN/ISN data is stored there.
I've checked the part nunbers and only the muffler is different. I have the Dinan exhaust which also works for the 330i. The stock 325 exhaust isn't too restrictive. People are removing the muffler entirely with no check engine light. The primary and secondary cats are the bottleneck.
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      09-25-2014, 11:25 AM   #83
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Just checked realoem:
The 328i uses a different exhaust manifold from the 128i and 325i/330i
The 128i uses the same exhaust manifold as the 328xi, but again not the 325i/330i
The 330i uses the same exhaust manifold as the 323i/325i
The 330xi uses the same exhaust manifold as the 325xi

N51 cars have a different exhaust manifold and different down stream catalyst, shared between the 128i and 328i.

The bottleneck has to be the software, and for all N52 powered cars - headers.
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      09-25-2014, 01:52 PM   #84
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Quote:
Originally Posted by hassmaschine View Post
I believe it's possible to flash the entire 330i file over to a 325i (making sure to leave the original 4kb eprom) but that might not be a good idea if there are physical differences like the exhaust. I want to test that theory on my spare DME by using the original test donor bin with my 4kb eprom. I'm thinking all the VIN/ISN data is stored there.
Itís possible but from my experience it doesnít work. I bought 325i because I didnít want to pay for 330i parts which I was going to replace anyway (exhaust, brakes, diff). After flash with 330i software and 330i intake manifold car was running but with much less power. I had to go back to 325i software and had it modified by DS Motorsport in Germany.
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      09-25-2014, 05:50 PM   #85
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Quote:
Originally Posted by KingofKingz View Post
Strange, as my car produces more torque and more power than a 330i and I have a better acceleration (5.7sec vs 6.0sec 0-100km/h)....
gearing/exhaust/etc... are some of the other differences, and probably some others that I have no idea about...

however I would still think that a full bolton 325i to be faster than a stock 330i, however just adding the 3 stage intake manifold with a tune is probably not going to do it...
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      09-25-2014, 06:05 PM   #86
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Quote:
Originally Posted by mecbain View Post
gearing/exhaust/etc... are some of the other differences, and probably some others that I have no idea about...

however I would still think that a full bolton 325i to be faster than a stock 330i, however just adding the 3 stage intake manifold with a tune is probably not going to do it...
With the right tuner it is.
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      09-25-2014, 08:46 PM   #87
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Quote:
Originally Posted by TheAxiom View Post
With the right tuner it is.
I'm fairly confident you're correct. I've done some pretty extensive research on the physical differences between 325 and 330 engines. They are IDENTICAL. Same part numbers for everything including long block, head, ECU. The only differences are the muffler and and intake manifold. I'm not sure about the software because I haven't looked into it. I know the software is extremely complicated and that there is a difference between the two cars. What we've seen here is just one table. There are hundreds more for all sorts of things.

BudVlad, you have an N53 so I can't comment on that.
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      09-26-2014, 12:22 AM   #88
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Not hundreds. Thousands!
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