08
Jul
12

Car porn, quad-rotorgasm edition

Before “787” referred to the Dreamliner (and thence, bizarrely, to the latest C++ spec), it referred to the Mazda 787B, the only Japanese car to win Le Mans outright in 1991.  And it sounds like sex:

The big thing that makes the 787B’s exhaust note so orgasmogenic is its R26B engine, a four-rotor Wankel design.  If you want your street car to sound like a 787B, you’re in a spot of trouble, because so far as I know no four-rotor engine has ever been made in series production for a street car.  But!  A man with a machine shop and a copy of Solidworks — plus a staggering amount of design, simulation, and fabrication skill — can do things like this:

By way of the ever-excellent Build Threads we discover this extended piece of gearhead porn:

It is breathtaking.  Believe me when I say that you do not have anything better to do with your Sunday than to read the whole thing.

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7 Responses to “Car porn, quad-rotorgasm edition”


  1. July 8, 2012 at 11:45

    Geeez….it sounds like a dental drill when he blips the throttle!
    I remember hearing the various rotary Mazdas during my many long hours at Elkhart Lake.
    You couldn’t mistake them for anything else…..

    • July 8, 2012 at 11:52

      Oh, yeah! The first time I went to the June Sprints, we pulled into a parking lot near Canada Corner just as the Formula Mazdas were starting their final practice session. I instantly knew I was going to have a good day.

  2. 3 perlhaqr
    July 8, 2012 at 11:45

    I could probably make the, um, exhaust on that. :D

    • July 8, 2012 at 14:21

      I’m going through all the pages of that guy’s 4-rotor build, and I’m speechless……
      That’s some of the best craftsmanship I’ve ever seen!

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