11-18-2016, 10:39 PM | #45 | ||
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11-19-2016, 05:53 AM | #46 | |
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And yet, I wonder, why do we still have to stand this nullitas? |
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11-19-2016, 07:25 AM | #47 | |
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IF anyone see's a questionable post by anyone... please flag/report it or send me a PM with a link. We don't need those kind of people on our forum. Dackel
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11-19-2016, 08:35 AM | #48 |
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Wow, I've seen people debate Trump vs. Clinton in a more civil manner than this "deck" kerfuffle. I didn't intend to start a sh!tstorm; just fishing for insider info.
In any case, the N engines clatter like a John Deere tractor at idle, while the B engines just purr. That's reason enough to prefer them; fuel consumption and possible durability aside. |
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11-19-2016, 09:04 AM | #49 |
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Maybe the N20/N26 or whatever the 4 cyl is clatters. The N55 is as smooth as butter from idle to redline.
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11-19-2016, 12:00 PM | #51 |
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This article details all of the differences between the N55 and B58:
http://youwheel.com/home/2016/03/27/...ine-6-cylinder Tl;dr-N55 was designed to control costs, B58 makes fewer concessions to keep costs down |
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11-19-2016, 12:12 PM | #52 | |
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"The B58’s cylinder block is closed deck; while N54/55 are open-deck" The N55B30T0 is also closed deck.. "There are other hints which indicate the B58 is designed as a high output engine. For example its crankshaft is forged, stronger than N55’s casted unit" The N55 crankshaft in the M235i is also forged... |
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11-19-2016, 12:24 PM | #53 | |
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Another one of those "videos" to take with a grain of salt.
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11-19-2016, 01:47 PM | #54 | |
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For those who followed that full discussion, you can skip the rest of this post. For the others, here's a summary: Facts:
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11-19-2016, 02:13 PM | #55 |
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Thank you Artemis for injecting some reason into this thread.
People get so sensitive about a topic that really doesn't matter just because they own the car and feel like they need to defend it as if it's feelings will be hurt. The fact is, as Artemis has pointed out, the statement about the closed deck had been removed from at least some of the materials in a later revision. When you actually think about it, it should appear unlikely that BMW has spent the money to design and produce a separate closed deck block part for the T0 N55 only. Design and validation costs are not insignificant. All of the other parts that were drawn upon were already designed and used on other cars. This is an engine limited by its tiny turbo... and even open-deck N55s with aftermarket turbos don't seem to be blowing up. |
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11-19-2016, 02:16 PM | #56 | |
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11-19-2016, 02:25 PM | #57 | |||
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11-19-2016, 02:29 PM | #58 |
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The current car/engine is a blast to drive so missing out on that for who knows how long for 'the next big thing' is your call.
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11-19-2016, 02:42 PM | #59 |
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Agreed. The B58 would probably be a barely noticeable upgrade. The S55 would be much more substantial, but can they still preserve the balance of the car? A few reviews seem to think the huge power and throttle mapping in the S55 are part of what makes the M4's rear end "difficult".
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11-19-2016, 03:37 PM | #60 |
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I can't wait for this shit to come out with different head or tail lights and that's the only change . Just so we don't have to keep seeing these threads
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11-19-2016, 03:44 PM | #61 |
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11-19-2016, 04:05 PM | #62 |
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Another fact is that closed deck is still prominently advertised on the US website. How does one account for BMW systematically removing reference to closed deck on their materials, but leaving it up on a website where it is much more easily removed than revising a document?
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11-19-2016, 04:20 PM | #63 | ||
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As you linked - through eventually getting hold of a BMW Genius with relevant info on hand, we have learned of the existence of a BMW engineering "Technical Training Manual "For Internal Use Only" that explicitly states "closed deck". (The ridiculously absurd counter to that fact is that it that such a manual must be an error!) But the agents in the BMW Genius dept do not really speak directly for BMW and are typically not trained engineers, but rather "helpful online manuals for iDrive" you say? So in an effort to "get to the top", I wrote an email to BMWNA directly and luckily was eventually forwarded to their "engine expert", the one and only Product and Technology Spokesperson (who holds an engineering degree) for BMW Group! But anyone in Customer Relations would presumably provide the same info, and would actually have been the appropriate channel. Keep in mind this is NOT the marketing dept whose material is being actively used as "proof" to support a closed deck - and that only through omission in certain markets' press releases?! <omitted - some back and forth, regarding who to contact, regional marketing material differences, head gaskets, etc> "... I am ... a customer in Atlanta trying to resolve an apparent discrepancy with this particular design feature of the N55B30T0 engine. All that I am really looking for is some authoritative verification that the BMW M2 and X4 M40i engine has, in fact, a closed-deck block. Perhaps I'm not going through the proper channels, but this is not something my dealer nor BMW Genius are able to answer at this time. Thank you for your help." BMW Group's official response (provided just last month): Quote:
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11-19-2016, 04:22 PM | #64 | |
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No word about a V8-engine in the European version of that manual. According to that manual, my 1M was in fact an M3. However, in real life, I failed to find an M3 badge on my 1M.
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11-19-2016, 04:47 PM | #65 | |
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EDIT: I have been able to review information provided me by zenmaster via PM. This information comes from BMWNA personnel who are knowledgeable about this. While previously skeptical, I do believe this information to be the most definitive I have seen confirming closed deck modifications to the N5530T0 block! Prior to seeing this I was going to suggest that perhaps one of our european fellow forum members could find someone, a worker, at the Steyr, Austria engine plant which manufactures the N55's, including the N55BT0, to comment? Last edited by reppucci; 11-19-2016 at 09:28 PM.. Reason: review of BMWNA information |
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11-19-2016, 04:52 PM | #66 | |
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The more reasonable assumption is that BMW is aware that they are advertising a closed deck block on the website. And given how easy it is to update a website, it follows that BMW would remove the advertisement if it was false. |
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