• BMW announces next generation engine families will share up to 60% of their parts between motors, same blocks

      The cost cutting measures continue. BMW's head of inline engine development Harald Unger recently announced the goal is to share as many parts as possible between 1.5, 2.0, and 3.0 liter inline motors including diesels. The idea is to have a common 500cc displacement per cylinder allowing the same basic block to be used for 3 cylinder, 4 cylinder, and 6 cylinder models. He even went further to state he wants the same turbo to apply to each motor reducing the amount of suppliers necessary.

      Quote from Mr. Unger: "Our goal is to have 60 percent of components shared between engines based on fuel type, and 40 percent commonality between gasoline and diesel engines."

      This article was originally published in forum thread: BMW announces next generation engine families will share up to 60% of their parts between motors, same blocks started by Sticky View original post
      Comments 38 Comments
      1. Sorena's Avatar
        Sorena -
        i hate your stupid goal Mr. Unger .
      1. leo985i's Avatar
        leo985i -
        Ugh.......AMG might be in my future.
      1. fastgti69's Avatar
        fastgti69 -
        so, does this mean bmw's will be cheaper in price. Maybe I can afford one now. I'm with you Leo, AMG looks like its gonna be the next M..
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
        so, does this mean bmw's will be cheaper in price. Maybe I can afford one now. I'm with you Leo, AMG looks like its gonna be the next M..
        No, prices will be the same but their profit will be greater.
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        No, prices will be the same but their profit will be greater.
        Lol Yea i know haha, I was just messing..
      1. Scourge82's Avatar
        Scourge82 -
        We'll guys, it was good while it lasted. I guess I won't be getting the next M3 after all.
      1. alq80's Avatar
        alq80 -
        as crappy as this sounds, there is always a good side to these things.

        For one, there will be more tuning applications as tuning can become "cross-platform." This may be good especially considering that replacement parts will inevitably become cheaper. Maybe, also efficiency will go up, as more development can be focused into a single design.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by alq80 Click here to enlarge
        as crappy as this sounds, there is always a good side to these things.

        For one, there will be more tuning applications as tuning can become "cross-platform." This may be good especially considering that replacement parts will inevitably become cheaper. Maybe, also efficiency will go up, as more development can be focused into a single design.
        That is definitely the upside, same pistons, rods, etc. across more platforms.

        BMW will try to lock you out of the ECU though, bunch of dicks.
      1. DBFIU's Avatar
        DBFIU -
        there a lot of upsides to this, people need to realize this
      1. DBFIU's Avatar
        DBFIU -
        Heres an example, how awesome would it be if the S63 had the same exact bolt spacing on the exhaust manifold as the N54. You could literally hack the manifold/turbo such that it would fit the N54. Or what if the valves were the same, except the S63 valves were larger in diameter? $#@! easy, swap them into your ported head. How about interchangeable flywheels and transmissions?

        Have a 4 cylinder that makes 600 whp and need a stronger transmission? Easy, swap in the I6 'version' it should bolt right up because the blocks are the same.

        These are a few examples of modular design and how powerful it is.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by DBFIU Click here to enlarge
        Heres an example, how awesome would it be if the S63 had the same exact bolt spacing on the exhaust manifold as the N54. You could literally hack the manifold/turbo such that it would fit the N54. Or what if the valves were the same, except the S63 valves were larger in diameter? $#@! easy, swap them into your ported head. How about interchangeable flywheels and transmissions?

        Have a 4 cylinder that makes 600 whp and need a stronger transmission? Easy, swap in the I6 'version' it should bolt right up because the blocks are the same.

        These are a few examples of modular design and how powerful it is.
        Keep in mind this only applies to 6, 4, and 3 cylinder inline motors.

        They are also trying to give each motor the same turbo. There is some upside as far as having aftermarket internals and even blocks made but BMW is going to try to keep it uniform and locked in their interest, not ours.
      1. fundahl's Avatar
        fundahl -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Keep in mind this only applies to 6, 4, and 3 cylinder inline motors.

        They are also trying to give each motor the same turbo. There is some upside as far as having aftermarket internals and even blocks made but BMW is going to try to keep it uniform and locked in their interest, not ours.
        Yeah that doesn't make any sense. How the hell are you going to properly size ONE turbo using it's compressor map with three different displacements, volumetric efficiencies (although probably close there), and likely different max rotational speeds?
      1. DBFIU's Avatar
        DBFIU -
        Click here to enlarge Originally Posted by SlicktopTTZ Click here to enlarge
        Yeah that doesn't make any sense. How the hell are you going to properly size ONE turbo using it's compressor map with three different displacements, volumetric efficiencies (although probably close there), and likely different max rotational speeds?
        Very easy, take two turbos designed for the 4 cylinder and use it for the 6.
      1. Ryan Mills's Avatar
        Ryan Mills -
        I wonder if that means the gas engines will have the same block and crank as the diesels? That should mean that the gas engine could handle a ton of BOOOOOOST! Makes me wonder if there is anything shared on the 335i's and d's?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Ryan Mills Click here to enlarge
        I wonder if that means the gas engines will have the same block and crank as the diesels? That should mean that the gas engine could handle a ton of BOOOOOOST! Makes me wonder if there is anything shared on the 335i's and d's?
        Sure is interesting if they share the diesel blocks.

        They are shooting for 40% sharing between those so who knows what parts it will be.
      1. fundahl's Avatar
        fundahl -
        Click here to enlarge Originally Posted by DBFIU Click here to enlarge
        Very easy, take two turbos designed for the 4 cylinder and use it for the 6.
        I would expect them to want to use a twin-scroll. That wouldn't work for the 6 or the 3. Well, I guess it could with some crazy exhaust runners and flange....
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by SlicktopTTZ Click here to enlarge
        I would expect them to want to use a twin-scroll. That wouldn't work for the 6 or the 3. Well, I guess it could with some crazy exhaust runners and flange....
        It could work for the 6, the 3 I don't see how.
      1. fundahl's Avatar
        fundahl -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        It could work for the 6, the 3 I don't see how.
        He said two turbos for the 6. So two twin-scrolls would not be.... right. It's hard to make three runners go into two ports.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by SlicktopTTZ Click here to enlarge
        He said two turbos for the 6. So two twin-scrolls would not be.... right. It's hard to make three runners go into two ports.
        Oh, I was not thinking with twin turbos but more along the lines of if it would be feasible.
      1. fundahl's Avatar
        fundahl -
        They should MAN UP and just put a GTX4202 or bigger on everything. For lag they can use "BMW Variable N02 Efficient Dynamics Control".