M54B30 with S54 ITB-s?

[TobyB]

Please, please don't jerry-rig the throttles with a cable. There is a reason they were made e-throttle from the factory.

Emissions being that reason.

Congrats on making progress! I have a number of projects that are still sitting, so I know how it goes....

t

[Greg from Hungary]

Will the hood still close over that plenum? It looks to sit at a funny angle.

The hood closes perfectly :)

[Greg from Hungary]

Hello Everybody!

As it was a really slow project, i really lost my spirit in the past few years to continue to work on the car. But in the last 6 months finally we made huge steps to finish the work. We had lots of problems with the cables, but the car is assembled and runs great. All we had to do is to finish the mapping of the ecu.
You can have a look at the progress at my facebook folder here:

https://www.facebook.com/badics.gerg...2035008&type=3

but i also upload a few pics and videos here.

Also there are two videos about the noise of the ITB's :)

https://www.youtube.com/watch?v=tEyH1ezMVQc&list=WL&index=29&t=0s

https://www.youtube.com/watch?v=SfDRqc0Vdkk

The final mapping is still missing, i'm going to post the end result here.

[AwakenNoMore]

Will the hood still close over that plenum? It looks to sit at a funny angle.

[Greg from Hungary]

The engine is finally assembled and sits well in the engine bay.

[Greg from Hungary]

dont see the adapter on the website.

They might not sell it directly, but they have a similar setup in an E46 with a fully built engine.
I saw the car on youtube, and emailed them.

Here is the link:

https://www.youtube.com/watch?v=JtpXhfD5CtE&feature=youtu.be

[blackm50]

Excuse me guys for the late answer.
I got the adapter plate from these guys: http://gitcar.pl/

Still needs some work to do, but will do the job.

dont see the adapter on the website.

[Elysian]

What are your reasons for attaching ITBs to the M54? If it's for weight (aluminum M54 vs iron S54), I'm sure you could find other ways to reduce weight on the front end. The engineers at BMW made the S54 iron so that it is strong. Putting excessive stress on an aluminum M54 probably isn't the best idea.

Wasn't part of the cast iron choice because they wanted to be able to space the cylinders closer together? The M54 has 7mm between cylinders if I've got my info correct, while the S54 has 4mm, while they both have 91mm cylinder to cylinder. There are some M54's out there making some pretty good power. I know someone making somewhere in the neighborhood of 500hp in his E39 with a custom turbo setup.

[Andrew325is]

What are your reasons for attaching ITBs to the M54? If it's for weight (aluminum M54 vs iron S54), I'm sure you could find other ways to reduce weight on the front end. The engineers at BMW made the S54 iron so that it is strong. Putting excessive stress on an aluminum M54 probably isn't the best idea.

[Greg from Hungary]

Excuse me guys for the late answer.
I got the adapter plate from these guys: http://gitcar.pl/

Still needs some work to do, but will do the job.

[berlow94]

What kind of research have you done comparing the flow of the S54 head vs. the M54 head?

The M54 doesn't flow nearly as much. Driveability WILL be an issue here. Using the S54 throttles as an e-throttle and adjusting the factory e-throttle mapping could help with that. But still, you will make more power AND torque AND have better drivability with a manifold and standard big bore throttle body.

Please, please don't jerry-rig the throttles with a cable. There is a reason they were made e-throttle from the factory.


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[dude8383]

have you seen the thread here?

http://www.bimmerboost.com/showthrea...m-World-record!!!

This guy has done the ITBs on an M54 - it sounds like it will be interesting to you

you weren't kidding. WOW.

[mike25]

have you seen the thread here?

http://www.bimmerboost.com/showthrea...m-World-record!!!

This guy has done the ITBs on an M54 - it sounds like it will be interesting to you

[dude8383]

some serious work there. curious about that adapter plate as well... i might talk to a few engineer friends to see about this

[blackm50]

bump for interesting thread , can you provide some information as to where you found the adapter plate from? i am also looking for one