[Flan1031]

Hi All
I recently a few weeks ago traded my 06 330xi for a 07 335xi sedan auto. I was not exactly certain where to post my thread so I chose this one, since it talks about rear wheel drive on awd. I did a base run on the Dyno Dynamics and it didn't like the awd on the BMW so we pulled the fuse and tested in rear dirve. Let me know your thoughts with this but take it easy on me. I since then have installed BMS DCI and have done a stage 2 tune from local guys (ECUProgram)with 15 years experience and the Alpina B7 flash on tranny. I have been running this for over a week now and it's pretty fast. How fast...well my cousin has an 08 135i and on a dig I launched 5 cars and he could not cath up, on a roll at 40km/h it was even for a split sec and then was behind me at about 2 car lenghts and we stopped. Last one was at dig and gave him 1 car lenghts and waited till he hooked up his tires after that I launched, he had about 4 cars on me and by about 140km/h I was now beside him and pulling slowly (I say slowly) until I was ahead and we stopped. anyways I have not yet been able to dyno again cause waiting for DP from Mike at N54. Let me know your thoughts on Dyno...and your thoughts of BMS DCI with dp along side a custom stage 2 set up. I'm still figuring out my goals at this point and reading all of your posts. This is my daily driver and would like to know from all of you experts your gains with similar set up of mine



http://imageshack.us/photo/my-images/18/1photoy.jpg/

252.2hp & 283tq (sorry pic aint the greatest)

thanks all!

[335xi Kevo]

^your post is off topic. Also your dyno isn't impressive. Not to sound like a jerk but most of us are in the mid 300's on jb or proceed alone.

Also BMS doesn't make a downpipe for xi.

[Flan1031]

No Offense taken...the dyno was done at complete stock. With the tune he said I should be in mid 350-370hp and 398 tq and 15-16psi

[Boosted-M]

Originally Posted by Flan1031

Hi All
I recently a few weeks ago traded my 06 330xi for a 07 335xi sedan auto. I was not exactly certain where to post my thread so I chose this one, since it talks about rear wheel drive on awd. I did a base run on the Dyno Dynamics and it didn't like the awd on the BMW so we pulled the fuse and tested in rear dirve. Let me know your thoughts with this but take it easy on me. I since then have installed BMS DCI and have done a stage 2 tune from local guys (ECUProgram)with 15 years experience and the Alpina B7 flash on tranny. I have been running this for over a week now and it's pretty fast. How fast...well my cousin has an 08 135i and on a dig I launched 5 cars and he could not cath up, on a roll at 40km/h it was even for a split sec and then was behind me at about 2 car lenghts and we stopped. Last one was at dig and gave him 1 car lenghts and waited till he hooked up his tires after that I launched, he had about 4 cars on me and by about 140km/h I was now beside him and pulling slowly (I say slowly) until I was ahead and we stopped. anyways I have not yet been able to dyno again cause waiting for DP from Mike at N54. Let me know your thoughts on Dyno...and your thoughts of BMS DCI with dp along side a custom stage 2 set up. I'm still figuring out my goals at this point and reading all of your posts. This is my daily driver and would like to know from all of you experts your gains with similar set up of mine



http://imageshack.us/photo/my-images/18/1photoy.jpg/

252.2hp & 283tq (sorry pic aint the greatest)

thanks all!

I wonder if your had 100% of the power transferred to the rear wheels?
If so, I could Dyno my car very soon on my buddies 2wd Dyno jet

[Flan1031]

I would think so because there was a 335i coupe before me and he laid down around 260ish hp

[sleeper6]

Also BMS doesn't make a downpipe for xi.[/QUOTE]

http://www.burgertuning.com/BMW_135_downpipes.html

OP read up. Enjoy your new car!

[Ark10bimmer]

Has anyone figured this out yet?

[Pseudo Nim]

why is this thread not dead yet? we'll go from F30 to G30 to H30 and people will still be posting here. :P

[Kruz]

Website still says E90post.com.

[aakrusen]

Originally Posted by Kruz

Website still says E90post.com.

Points awarded to Kruz.

[Boosted-M]

I pulled fuse 26 (transfer case) and fuse 50 (wipers) on my 335xi 6AT And it disabled my jb4 g5 ISO soI had zero boost.. Anybody else have the same problem?

I think fuse 26 also supply's power to the jb4..

[Boosted-M]

Originally Posted by Boosted-M

I pulled fuse 26 (transfer case) and fuse 50 (wipers) on my 335xi 6AT And it disabled my jb4 g5 ISO soI had zero boost.. Anybody else have the same problem?

I think fuse 26 also supply's power to the jb4..

Anybody try pulling the fuses with the JB4 and have the same problem??

[335xi Kevo]

Originally Posted by sleeper6

Also BMS doesn't make a downpipe for xi.

http://www.burgertuning.com/BMW_135_downpipes.html

OP read up. Enjoy your new car![/QUOTE]
Doesn't fit xi

[littleE92]

Not sure if everyone here is aware of the Alpina TCU flash, but maybe it is possible to flash the car to RWD in a similar fashion?

Instead of flashing the the EGS module with an Alpina number for Alpina's transmission algorithm, maybe it is possible to flash whatever module (DME?) that controls the xDrive with a RWD car's number?

[Pseudo Nim]

Originally Posted by littleE92

Not sure if everyone here is aware of the Alpina TCU flash, but maybe it is possible to flash the car to RWD in a similar fashion?

Instead of flashing the the EGS module with an Alpina number for Alpina's transmission algorithm, maybe it is possible to flash whatever module (DME?) that controls the xDrive with a RWD car's number?

I'm not 100% certain on how you're proposing to flash away the existence of the front differential and the whole FWD drivetrain element, but I might just be a grumpy old man

[littleE92]

Originally Posted by Pseudo Nim

I'm not 100% certain on how you're proposing to flash away the existence of the front differential and the whole FWD drivetrain element, but I might just be a grumpy old man

Well what is happening when people pull their fuses? When people pull the fuse are they pulling away the existence of the front diff and whole fwd drivetrain element? I don't think so...is it not just tricking the computer to run in RWD due to a malfunction in the xDrive?

Flashing the correct module that controls the xDrive with a RWD assembly number might just do the same "trick" minus any error lights.

Just a thought, I'm not saying it will work.

[Amini77]

Originally Posted by littleE92

Well what is happening when people pull their fuses? When people pull the fuse are they pulling away the existence of the front diff and whole fwd drivetrain element? I don't think so...is it not just tricking the computer to run in RWD due to a malfunction in the xDrive?

Flashing the correct module that controls the xDrive with a RWD assembly number might just do the same "trick" minus any error lights.

Just a thought, I'm not saying it will work.

I think it's possible, just a matter of who can make it. There must be a way to make some switch to cut the fuse off and turn it back on. Hopefully they don't only make it for the n54/n55 and also for the n52. It really does help in a drap too..you have AWD at launch, hit a switch to make it RWD, and all your power goes to the rear. Soo many times after high speeds I have friends starting to pull because of my AWD (and any AWD) system, it just doesn't pull as hard because the strain of turning 4 wheels. Hopefully it's possible

[heiltrading]

Has any one tried to access the pressure switch connector for the transfer case? Id assume you could intersect the activation (voltage) and just add a switch. Someone should pull the wiring schematic and post to tread. I predict you will still get a 4x4 light but traction may stay active.

[Amini77]

Originally Posted by heiltrading

Has any one tried to access the pressure switch connector for the transfer case? Id assume you could intersect the activation (voltage) and just add a switch. Someone should pull the wiring schematic and post to tread. I predict you will still get a 4x4 light but traction may stay active.

We need a mad genius to do this for us lol the only reason I hate pulling the fuse is because I also lose ABS...scary lol

[Davecrobison]

Originally Posted by Amdahl

Also, I believe that when the car is off and in Park, the front is not engaged. You could probably prove this on a lift.

I'm with you on this one.when My car reaches 10mph I hear 5-6 pops and then it's all good,even if I put it in reverse/neutral/park,drive.until I turn the car off and it sets for over 30 seconds(powers off completely ) Upon fresh start and accelerating to 10 mph I get the poppin again.

[Oxy-]

Hello All,

this is my first post. Yes, I registered as soon as read this thread

Originally Posted by *********

OK I am confirming that fuse #20 for my '06 330xi disables the AWD.

Would anyone know if this works on '07+ 330xi (N53 engine) E92? I guess, no reason why it shouldn't.

Overall, I was very excited to find this thread! As most of you, I also have difficult weather which needs AWD, but really enjoy RWD. After reading it all through, I understood that my next dream car is a naturally aspirated BMW xDrive coupe, which can be transformed to an RWD with a press of a button With an aftermarket LSD in the rear...

BTW, have you tried to intercept the wires going to a servo motor in the transfer case, as opposed to pulling the fuse?

[Ark10bimmer]

Any updates I really want to know if anyone has resolved this wiry coding or programming.