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    • BMW to no longer use 'S' designations to denote M engines meaning BMW motors will all blend together

      BimmerBoost was confused by BMW's choice to name the engine in the BMW F87 M2 the N55B30T0. Historically, BMW denotes an engine is a motor built by the M division with the 'S' prefix in its engine code. Just take a look at BimmerBoost's ranking of all the storied M engines such as the S54, S85, S38, S65, etc.


      The BMW M engine is (was) a point of pride for BMW. Enthusiasts themselves take pride in the M division motors and pay extra to have an engine built by the storied M division for their street car.

      With the F87 M2 many people incorrectly assume the car does not have an M motor. It certainly does as BMW confirmed this themselves in response to BimmerBoost's question on the matter.

      Not to mention BMW's own technical documents and press releases tell you the F87 M2 N55B30T0 motor uses a closed deck block unlike the N55 and that it shares the S55 engine internals from the F80 M3 and F82 M4.

      So what is the reasoning for an 'N' designation and not an 'S' designation for the motor? BMW happened to send this response a couple hours after our article questioning the N55B30T0 designation for the F87 M2 went up. Probably just a coincidence we don't hear anything for almost a week and then suddenly get a response, right?

      BMW is moving away from using 'S' codes to denote M motors:


      This is a sad day. We reported back in 2013 that the M motor was unofficially 'dead' but we did not know it would go to this degree. BMW's cost cutting is getting insane. We knew M motors would be based on production motors meaning no more bespoke ground up M engine designs but now the engines will not even be officially differentiated in their engine codes:


      This is simply a result of cost cutting. It's also officially the end of the 'S' Motorsport engine era. Let's just hope BMW does not take this so far as an M car getting a motor simply with different software. Then again, that's exactly what they did with the E82 1M.

      Oh well. It was a nice ride.

      This article was originally published in forum thread: BMW to no longer use 'S' designations to denote M engines meaning BMW motors will all blend together started by Sticky View original post
      Comments 19 Comments
      1. Enfiftyfore's Avatar
        Enfiftyfore -
        Good thing Rebecca gave details on their decisions otherwise I'd be totally lost.
      1. rac's Avatar
        rac -
        What defines an M engine anyway?
        Imo it was a highly tuned engine that results in a high HP/L, something not easily improved upon by a backyard mechanic. That kind of thing that made them special pretty much died with turbos. None of the turbo engines are all that special, closed deck or not. So probably a good thing they don't call them M engines until they are ready to build FI engines that are actually special compared to every other FI engine.
      1. Enfiftyfore's Avatar
        Enfiftyfore -
        Click here to enlarge Originally Posted by rac Click here to enlarge
        What defines an M engine anyway?
        Imo it was a highly tuned engine that results in a high HP/L, something not easily improved upon by a backyard mechanic. That kind of thing that made them special pretty much died with turbos. None of the turbo engines are all that special, closed deck or not. So probably a good thing they don't call them M engines until they are ready to build FI engines that are actually special compared to every other FI engine.
        There's a lot of truth in what you say but, any FI will always be able to improved on by a backyard mechanic. It's been that way for every single platform that I can think of except the top tier cars (918, F12, P1, Veyron etc). The fact is, they are building road cars, not race cars. People expect reliability.
      1. ricecrackers101's Avatar
        ricecrackers101 -
        There's a lot of truth in what you say but, any FI will always be able to improved on by a backyard mechanic. It's been that way for every single platform that I can think of except the top tier cars (918, F12, P1, Veyron etc). The fact is, they are building road cars, not race cars. People expect reliability.

        the 918 and f12 are not FI cars. both have high revving NA engines
      1. rac's Avatar
        rac -
        i agree about FI, but i believe BMW need to do better if they want to differentiate themselves in the market like the e46 did. cla 45 amg powerplant got my attention for something rolling off the factory floor and its not that exotic.

        or else shave 300lb of their damn cars!
      1. Enfiftyfore's Avatar
        Enfiftyfore -
        Click here to enlarge Originally Posted by ricecrackers101 Click here to enlarge

        the 918 and f12 are not FI cars. both have high revving NA engines
        You are totally right, I wasn't thinking. I always put all those cars in the same category so I just did it again
      1. nbrigdan's Avatar
        nbrigdan -
        motor was unoficially 'dead'
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Enfiftyfore Click here to enlarge
        Good thing Rebecca gave details on their decisions otherwise I'd be totally lost.
        It seems Rebecca is one of the few that knows what is going on.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by rac Click here to enlarge
        What defines an M engine anyway?
        An engine that is built by the M division...

        Click here to enlarge Originally Posted by rac Click here to enlarge
        None of the turbo engines are all that special, closed deck or not.
        The S63 is pretty special. Everyone copied BMW's turbo layout after its debut.
      1. alex@ABRhouston's Avatar
        alex@ABRhouston -
        hmm. sucks.
      1. 0-60Motorsports's Avatar
        0-60Motorsports -
        Too bad. Looks like i have the older NA ///M cars in my future as the new ones dont seem to have a soul. One thing I hate is how the new M3/M4/M2 have horrible fart exhaust sounds.... AMG did a lot better with their setup and it still sounds fantastic especially the F1 Medical and Safety vehicles.
      1. Sticky's Avatar
        Sticky -
        There certainly is something missing in that M recipe and it doesn't look to be getting any better.
      1. RobNyc's Avatar
        RobNyc -
        Click here to enlarge Originally Posted by 0-60Motorsports Click here to enlarge
        Too bad. Looks like i have the older NA ///M cars in my future as the new ones dont seem to have a soul. One thing I hate is how the new M3/M4/M2 have horrible fart exhaust sounds.... AMG did a lot better with their setup and it still sounds fantastic especially the F1 Medical and Safety vehicles.
        The M2 still sounds better than F80 M3/M4 any day
        But I agree AMG did a better job out of factory.
      1. subaru335i's Avatar
        subaru335i -
        Interesting
      1. bigdnno98's Avatar
        bigdnno98 -
        Well every AMG motor is built by hand, by one person in Affalterbach. AMG still cares about their performance division. I'm still a fan of the M2 and the new M3/M4 and the F10 M5 is just an amazing car. I hope this isn't the end of the real "M performance" division though. It doesn't look good.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by bigdnno98 Click here to enlarge
        Well every AMG motor is built by hand, by one person in Affalterbach. AMG still cares about their performance division. I'm still a fan of the M2 and the new M3/M4 and the F10 M5 is just an amazing car. I hope this isn't the end of the real "M performance" division though. It doesn't look good.
        AMG surpassed M as far as being enthusiast friendly a while ago.
      1. bigdnno98's Avatar
        bigdnno98 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        AMG surpassed M as far as being enthusiast friendly a while ago.
        Well, I take that back. I am at work with a guy that just bought a C450 AMG? WTF is that? It's not a real AMG. Its motor isn't hand built. Matter of fact, 2 of the other series will share the same motor. Why the 3 number designation? What makes the car an AMG at all? Looks like it's not just BMW.....
      1. subaru335i's Avatar
        subaru335i -
        Click here to enlarge Originally Posted by bigdnno98 Click here to enlarge
        Well, I take that back. I am at work with a guy that just bought a C450 AMG? WTF is that? It's not a real AMG. Its motor isn't hand built. Matter of fact, 2 of the other series will share the same motor. Why the 3 number designation? What makes the car an AMG at all? Looks like it's not just BMW.....
        Yeah and the CLA45 AMG is even worse. Transverse mounted 4 cyl and AWD...at least the C450 has the engine in the right orientation. Pretty sure they both only come in AWD which is odd.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by bigdnno98 Click here to enlarge
        Well, I take that back. I am at work with a guy that just bought a C450 AMG? WTF is that? It's not a real AMG. Its motor isn't hand built. Matter of fact, 2 of the other series will share the same motor. Why the 3 number designation? What makes the car an AMG at all? Looks like it's not just BMW.....
        I've covered this: http://www.benzboost.com/content.php...W205-C43-coupe