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    • Composite (carbon fiber) connecting rods the future of internal combustion engine building?

      Everyone knows the advantages of carbon fiber and various modern composites. Light weight while having very high strength. Metal still rules the engine building world but consider carbon fiber connecting rods for a moment.


      On paper, the idea works. They are lighter than comparable metals for the size which in theory should have a motor be freer revving. High rpm applications would likely benefit from less vibration.

      The strength of the pictured rod is said to be enough for a nitromethane burning top fuel car. That strength is offered with half the weight of the metal pieces. The rods also will not fatigue in the same manner.

      We see carbon fiber applications in areas such as wheels where metal used to rule the day. Maybe connecting rods are next? Lamborghini is apparently already experimenting with the idea for a production motor. At what price point though...




      This article was originally published in forum thread: Composite (carbon fiber) connecting rods the future of internal combustion engine building? started by Sticky View original post
      Comments 5 Comments
      1. Sticky's Avatar
        Sticky -
        That $18000 listed is for a set I believe, not each rod.
      1. maxnix's Avatar
        maxnix -
        4-6-8-10-12?

        Seems like Bugatti would have them if they could make them.
      1. digger's Avatar
        digger -
        the last picture looks like it was designed by someone who doesn't know what they are doing which takes most of the credibility away
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by digger Click here to enlarge
        the last picture looks like it was designed by someone who doesn't know what they are doing which takes most of the credibility away
        Not sure why you feel that way. It looks to me like you can see the Carillo stamp and they certainly know what they are doing.
      1. digger's Avatar
        digger -
        the way the beam transitions into the big end is not blended very well at all, its basic load path/stress flow