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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 > E90 ECU Software Available



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      07-14-2006, 06:06 PM   #89
RichReg
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Quote:
Originally Posted by tl_boy
Thats manual tranny. Auto trannys are the same p/n i believe.
Of course.
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      07-14-2006, 07:28 PM   #90
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To make a 325i have the power of a 330i is easier said then done. If you wanted the extra power you were prob better off getting a 330i.
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      07-14-2006, 07:35 PM   #91
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so....will bmw's software update screw up the whole ECU?

also, will it affect fuel effeiciently greatly?

also, does it void the warranty?...
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      07-14-2006, 07:35 PM   #92
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Quote:
Originally Posted by Artz 330
yea. My dealer wont even sell me one. LOL. Looks like ill throw the 330Xi on the lift swap out the 325is manifold with the 330's. I have access to a 330 ecu also. Plug it up to the laptop play around with it, and take it out on the road, match it up to the 330i and go dyno it. I just checked it out. THere are slight wiring differences actually, on the 330 and 325 that lead up to the manifold itself.
Tell me about these wiring differences. Please be as specific as possible.
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      07-14-2006, 07:52 PM   #93
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This product sounds interesting. I'm eager to see dynos.
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      07-14-2006, 08:07 PM   #94
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there are no wiring differences in the 325 and the 330, I know, I have the "330" manifold in my car; I have for the past year. How do you think I know the ECU software is the only difference, and yet you need the 330 specific ECU to make it work?
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      07-14-2006, 08:09 PM   #95
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Quote:
Originally Posted by RichP
there are no wiring differences in the 325 and the 330, I know, I have the "330" manifold in my car; I have for the past year.
You had it before our meet last August?
I didn't even know.....how much was the install?
Did you dyno the car?
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      07-14-2006, 08:13 PM   #96
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damnit your names got me confused. RichReg and RichP.

RichP: you do? Like RichReg: have you had a dyno?



Quote:
Originally Posted by RichReg
You had it before our meet last August?
I didn't even know.....how much was the install?
Did you dyno the car?
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      07-14-2006, 08:16 PM   #97
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I have no performance mods to my 330.
RichP says he does.....I think.
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      07-14-2006, 08:16 PM   #98
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Quote:
Originally Posted by RichReg
You had it before our meet last August?
I didn't even know.....how much was the install?
Did you dyno the car?
I did have it, I installed it with the help of some people "in the know" I paid for the parts, I believe the 3 were about 1K or so. I didnt mention it at the time because I wasnt exactly supposed to have those parts.

As for tuning, the 330 ECU is needed, and there seems to be no easy way around it. No BMW factory computers in the US can reflash the ECU to make it behave accordingly. The flaps do move in my manifold, but I dont have the timing or fueling to see the performance difference.

I will be dynoing the car soon though, I have an intake coming from overseas to test.
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      07-14-2006, 08:19 PM   #99
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By flaps you must mean the adjustor units that are absent in the 325?
Well, well, well....you are the only one I know that has gone this far to mod the 325 into a 330.

Please keep us posted on the dyno results!
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      07-14-2006, 08:23 PM   #100
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Quote:
Originally Posted by Joe Bimmer
Tell me about these wiring differences. Please be as specific as possible.
Im gonna take pics of the 325 and 330 tomorrow. There are 2 different wires on the 325i that are capped off and fixed to the Intake Manifold. On the 330i there is only the One noticeable Wire that is connected to the intake manifold. I am trying to figure out what the other wire is for, this second wire is not present on the 330 not on or anywhere around the intake manifold. Its a bit hard to route it to anything with a flashlight since its dark. Im gonna check it out in the daylight tomorrow, and take some pics.
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      07-14-2006, 08:24 PM   #101
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If possible, dyno prior to any aftermarket intake. This will help us to determine what gains can be achieved specifically from the intake manifold, exhaust, and other oem 330i parts. Someone on here stated the 325 ecu will automatically reprogram itself to reflect the replaced parts.


Quote:
Originally Posted by RichP
I did have it, I installed it with the help of some people "in the know" I paid for the parts, I believe the 3 were about 1K or so. I didnt mention it at the time because I wasnt exactly supposed to have those parts.

As for tuning, the 330 ECU is needed, and there seems to be no easy way around it. No BMW factory computers in the US can reflash the ECU to make it behave accordingly. The flaps do move in my manifold, but I dont have the timing or fueling to see the performance difference.

I will be dynoing the car soon though, I have an intake coming from overseas to test.
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      07-14-2006, 08:29 PM   #102
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Quote:
Originally Posted by Artz 330
Im gonna take pics of the 325 and 330 tomorrow. There are 2 different wires on the 325i that are capped off and fixed to the Intake Manifold. On the 330i there is only the One noticeable Wire that is connected to the intake manifold. I am trying to figure out what the other wire is for, this second wire is not present on the 330 not on or anywhere around the intake manifold. Its a bit hard to route it to anything with a flashlight since its dark. Im gonna check it out in the daylight tomorrow, and take some pics.
Both wires are on the 330 manifold as well, there are 2 adjuster units, a harness going to each.

And no, the ECU will not readjust.

And yes, I will by dynoing before and after with the intake. Dynoing just after is completely pointless.
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      07-14-2006, 08:32 PM   #103
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Quote:
Originally Posted by tl_boy
Someone on here stated the 325 ecu will automatically reprogram itself to reflect the replaced parts.
That's what Dinan told me about the new intake & exhaust that they'll have for the E90 330.
They said it will reprogram itself?

I guess they must have a deal with BMW so that it will
recognize Dinan's parts.
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      07-14-2006, 08:33 PM   #104
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Quote:
Originally Posted by RichP
I did have it, I installed it with the help of some people "in the know" I paid for the parts, I believe the 3 were about 1K or so. I didnt mention it at the time because I wasnt exactly supposed to have those parts.

As for tuning, the 330 ECU is needed, and there seems to be no easy way around it. No BMW factory computers in the US can reflash the ECU to make it behave accordingly. The flaps do move in my manifold, but I dont have the timing or fueling to see the performance difference.

I will be dynoing the car soon though, I have an intake coming from overseas to test.
I have a 330 ECU laying around. There are differences in the parameters for engine management. If you already have the 330 Intake manifold. I am curious to see exactly what the car would do if the 330 ECU was swapped with the 325 ECU. Most likely the rest of the software for controling every other component in the car should be pretty much the same. So, does the 330 ECU only have the parameters set to control 3 stage manifold and all the other parameters are the same. I asume so... Both motors are running a 10.7:1 compression ratio.
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      07-14-2006, 08:34 PM   #105
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Quote:
Originally Posted by RichP
Both wires are on the 330 manifold as well, there are 2 adjuster units, a harness going to each.

And no, the ECU will not readjust.

And yes, I will by dynoing before and after with the intake. Dynoing just after is completely pointless.
where is the other wire going in the 330 that i wasnt able to see?
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      07-14-2006, 08:37 PM   #106
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Artz, RichP, since you guys are all in the same area, maybe you can work together on this, and keep us posted? Reprezent East Coast, maybe there is hope for us 325i owners that want more power
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      07-14-2006, 08:39 PM   #107
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Quote:
Originally Posted by tl_boy
Artz, RichP, since you guys are all in the same area, maybe you can work together on this, and keep us posted? Reprezent East Coast, maybe there is hope for us 325i owners that want more power
Yea. My girls 325 could use an extra 40 HP
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      07-14-2006, 09:22 PM   #108
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We just cant plug the ECU in, its going to also need be coded to the car.

I believe the 2nd wire is going to the actuator that is accessed from underneath the manifold.

Anyone know where I could get a cheap 330 ECU? The reason I didnt pursue this to its conclusion is because I didnt want to drop $$ on a leased car.
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      07-14-2006, 09:32 PM   #109
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Unreal. Supposedly a few of them are out there and available (the 330 ECU) Im going to call and get more info tomorrow.
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      07-14-2006, 09:56 PM   #110
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Wow, alot happened in the last several hours while I was in the garage rebuilding a transfer case.

Artz, it was the part where you stated that the "there are mechanical differences within the motor itself, and can not be changed by a simple remap"
That implies there are different parts used between the two engines, and except for the exhaust, ECM flash, and intake, there is nothing that I can find.

I compared the 325XI and 330XI because that is what I am most familiar with. The base ECM part number is the same for both, as is the engine harness. My belief is that since the intake has three stages, stage one is in the static position, stage two is opened by a servo (probably PWM) and is controlled by the two wires from one connector (one of the two you see capped off and attached to the 325 manifold) and the other connector handles the transition to stage 3.

I responded the way I did because the tone you use in your posts is generally inflamatory- the appearance is that you are the expert and everyone who doesn't agree with you is uninformed. I have learned that on a BBS like this being humble in responses works better since with so many members someone is sure to be smarter than me. If you re-read your post where you quoted me, with an open mind, you will realize that your tone was a complete slam of me and my opinion, and you assumed I have no knowledge or have done any research related to this issue.

As far as performance upgrades for the 325 go, it looks like Rich P has gone farther than anyone I have read about re: 325-330 upgrades. BMW has the parts locked down and are unobtainable for the general public without cores to exchange. This is obviously for the reasons I stated before- the engines are the same except for these parts and BMW needs an entry level car in the low 30K range.

I am of the opinion that BMW's stance on the OEM parts leaves the door wide open for aftermarket manufacturers to figure out engine management software that is smog legal and adds some HP. We are talking about 22HP claimed here, not the 40 difference between the 325 and 330. Why is this so hard to believe? Companies modify engine management all the time in the aftermarket to various degrees. BMW's usual tactics make it difficult. A detuned engine like in the 325 using external parts and software is a sure fit for aftermarket mods. If the 2.5L engine had been avaiable we wouldn't even be having this discussion.

Have a good night- I am going to bed.
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