[reppucci]

Looks like BMWNA has removed the "closed deck" reference on its website for the M2 N55 engine.

https://www.bmwusa.com/vehicles/m/m2.html

[zenmaster]

Now why would they go and do that?

[ORIGIN M.]

Because, bunch of wankers.

Originally Posted by zenmaster

Now why would they go and do that?

[NOLAGUY]

This is what it use to say. Just for reference.

[Artemis]

Interesting.

Added to the dedicated thread: http://f87.bimmerpost.com/forums/sho....php?t=1328493

See: https://www.bmwusa.com/vehicles/m/m2.html

Past:


Present:

[Tag]

It also doesn't list closed deck for the M3/4. This will keep everyone arguing for months to come.

https://www.bmwusa.com/vehicles/m/m3.html

https://www.bmwusa.com/vehicles/m/m4.html

[reppucci]

Originally Posted by Tag

It also doesn't list closed deck for the M3/4. This will keep everyone arguing for months to come.

https://www.bmwusa.com/vehicles/m/m3.html

https://www.bmwusa.com/vehicles/m/m4.html

Or at least until the M2 CS S55 comes out.

In all seriousness I noticed that also but I am not sure that closed deck was ever mentioned on the M3/4 sites.... but i can't swear to that.

[Gatte]

Maybe BMW finally saw all the confusion it was causing and decided to end the confusion. They will probably add the closed deck description on the M2 CS so people know that the M2 and the M2 CS are different.

BTW where's the guy who smokes, crushes and DP's everyone ??

[Artemis]

Originally Posted by Tag

It also doesn't list closed deck for the M3/4. This will keep everyone arguing for months to come.
https://www.bmwusa.com/vehicles/m/m3.html
https://www.bmwusa.com/vehicles/m/m4.html

That's correct.

For the record:

• the S55B30T0 engine (M3/M4) features indisputably a 'closed deck' design and features LDS-coated aluminium cylinder liners (LDS = Lichtbogendrahtspritzen = twin wire arc spray process); it's mentioned in the M3/M4 Technical Training;
• the N55B30T0 engine (M2), on the contrary, has moulder cylinder liners made from cast iron; no word about the 'deck' type in the M2 Technical Training, despite indicating to point out main differences with the 'open-deck' N55B30O0 engine (M235i) ("The N55B30T0 engine is the power plant for the F87 BMW M2. It is a further development of the N55B30O0 engine from the BMW M135i and BMW M235i, which is familiar from the current BMW 1 Series and 2 Series models. This document describes only the differences compared with the N55B30O0.");
• the 'closed deck' reference is still around in some press releases + is also claimed to feature in the US M2 Technical Training (according to a BMW employee who looked it up for a forum fellow).

As concluded in the past, we'll only know the M2 'deck' type for sure when someone reports about what (s)he sees when opening the M2 engine (N55B30T0).

[Artemis]

Originally Posted by Gatte

BTW where's the guy who smokes, crushes and DP's everyone ??

Maybe he's recharging right now ?

[rouxeny]

Still find it unbelievable that nobody has opened the engine to definitively answer this.

[SeanWRT]

We need a recall for engine please.

[Yellowflash21]

I'm impressed that after a year, there wasn't a single breakdown of this unit. Comparing it to S55 platform.

Seriously, this is bloody good engine in stock form.

[E90Fleet]

Would a closed deck block not use a different cylinder head gasket compared to the open deck N55 ?

The M2 shares the same gasket with all other N55

[GimmeanM]

I said this somewhere in another thread on the topic; I'd be willing to bet it is an open deck.

As we know the block is in essence the 'heart' of the motor. If the N55 in the M2 was in fact a closed deck it would in effect be more closely aligned with the S55 block and therefore more likely to be known that the M2 has a 'de-tuned S55'. Since it is described as an N55 with some S55 internals...that, to me, sounds like a normal N55 open deck block.

[RPM2-85]

OMG this again!!!!

Why dont you all wait for the proof when someone opens one up.....

[Artemis]

Originally Posted by RPM2-85

OMG this again!!!!
Why dont you all wait for the proof when someone opens one up.....

Because BMWNA was quicker in changing info on its official website.

But, agreed, a Q.E.D. is the next step.

[Gatte]

Originally Posted by RPM2-85

OMG this again!!!!

Why dont you all wait for the proof when someone opens one up.....

Wait, weren't you the one whose only proof to believe that the N55 in the M2 was closed deck was the BMW NA website's reference.

Weren't you also saying BMW would get sued and what not. Aren't you concerned at all now that BMW might have ripped you off.

[Tag]

Schrödinger's N55. The engine is both closed-deck and open-deck until observed by the external world.

[reppucci]

Originally Posted by Tag

Schrödinger's N55. The engine is both closed-deck and open-deck until observed by the external world.

ALERT: Following is based on Quantum Physics Thought Processes! waaay


Schrodinger would state the N55 is either open or closed, regardless of whether it was being observed or not!

Copenhagen N55 is what you meant to state!

The Copenhagen Interpretation of quantum mechanics essentially states that an object in a physical system can simultaneously exist in all possible configurations, but observing the system forces the system to collapse and forces the object into just one of those possible states. Schrödinger disagreed with this interpretation.

So what does this have to do with cats? Schrödinger wanted people to imagine that a cat, poison, a geiger counter, radioactive material, and a hammer were inside of a sealed container. The amount of radioactive material was minuscule enough that it only had a 50/50 shot of being detected over the course of an hour. If the geiger counter detected radiation, the hammer would smash the poison, killing the cat. Until someone opened the container and observed the system, it was impossible to predict if the cat’s outcome. Thus, until the system collapsed into one configuration, the cat would exist in some superposition zombie state of being both alive and dead.

Of course, Schrödinger claimed, that was ridiculous. Quantum superposition could not work with large objects such as cats, because it is impossible for an organism to be simultaneously alive and dead. Thus, he reasoned that the Copenhagen Interpretation must be inherently flawed. While many people incorrectly assume Schrödinger supported the premise behind the thought experiment, he really didn’t. His entire point was that it was impossible.

While it is true that modern experiments have revealed that while quantum superposition does work for tiny things like electrons, larger objects must be regarded differently.

This video from Sixty Symbols does an excellent job at explaining the Shrödinger’s Cat Paradox:

[AngryBaby]

Originally Posted by reppucci

ALERT: Following is based on Quantim Physics Thought Processes! waaay


Schrodinger would state the N55 is either open or closed, regardless of whether it was being observed or not!

Copenhagen N55 is what you meant to state!

The Copenhagen Interpretation of quantum mechanics essentially states that an object in a physical system can simultaneously exist in all possible configurations, but observing the system forces the system to collapse and forces the object into just one of those possible states. Schrödinger disagreed with this interpretation.

So what does this have to do with cats? Schrödinger wanted people to imagine that a cat, poison, a geiger counter, radioactive material, and a hammer were inside of a sealed container. The amount of radioactive material was minuscule enough that it only had a 50/50 shot of being detected over the course of an hour. If the geiger counter detected radiation, the hammer would smash the poison, killing the cat. Until someone opened the container and observed the system, it was impossible to predict if the cat’s outcome. Thus, until the system collapsed into one configuration, the cat would exist in some superposition zombie state of being both alive and dead.

Of course, Schrödinger claimed, that was ridiculous. Quantum superposition could not work with large objects such as cats, because it is impossible for an organism to be simultaneously alive and dead. Thus, he reasoned that the Copenhagen Interpretation must be inherently flawed. While many people incorrectly assume Schrödinger supported the premise behind the thought experiment, he really didn’t. His entire point was that it was impossible.

While it is true that modern experiments have revealed that while quantum superposition does work for tiny things like electrons, larger objects must be regarded differently.

This video from Sixty Symbols does an excellent job at explaining the Shrödinger’s Cat Paradox:

Common misconception regarding poor Schrodinger

[Artemis]

Originally Posted by reppucci

Schrodinger would state the N55 is either open or closed, regardless of whether it was being observed or not!

Depends: "It is necessary to speak and to think what is; for being is, but nothing is not." (Parmenides)