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Thread: Ferrari 312PB, 1:3 Scale and functional

  1. #1
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    Ferrari 312PB, 1:3 Scale and functional

    I thought this definitely desserved its own thread. Simply amazing.
    Hope you enjoy.

    http://www.youtube.com/watch?v=l3NVJ...elated&search=

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    Everybody has seen it a million times. It's an old piece.

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    I remember posting about this around 3 years ago - So in that sense it's not really a repost. I won't mention the one that was posted more recently, thus making this a repost

    Anyways, Pierre Scerri is incredible. He has more talent and patience than I can possibly imagine.

    The link I posted way back in the day has since gone dead, but you can still access it though archive.org - here is the link

    Here is Pierre's personal home page: http://mps-sportproto.com/fr/

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    I think ferrari should give him a free car for his incredible effort.

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    That is absolutely unbelievable. What a true enthusiast, if it was anything less that what it is i would call this guy a loser, but... how incredible. what amazing craftsmanship, ferrari should hook this guy up with something for what he's done
    Reutlingen/ San Francisco

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    wow, I've never seen it before. That's a truely brilliant piece of work though.
    2011 Honda Civic Si

    ATHEIST and damn proud of it.

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    now for the clever among us. The car is scaled down to 1/3 of the original car. What is the displacement of the scaled down flat 12? And please show your calculations
    "I find the whole business of religion profoundly interesting, but it does mystify me that otherwise intelligent people take it seriously." Douglas Adams

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    Quote Originally Posted by henk4
    now for the clever among us. The car is scaled down to 1/3 of the original car. What is the displacement of the scaled down flat 12? And please show your calculations
    It would be interesting to see what kind of power it makes...
    Last edited by Egg Nog; 01-09-2007 at 01:27 AM.

  9. #9
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    Quote Originally Posted by Egg Nog
    It would be interesting to see what kind of power it makes...
    sure but have you calculated from what displacement that will come?
    "I find the whole business of religion profoundly interesting, but it does mystify me that otherwise intelligent people take it seriously." Douglas Adams

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    Quote Originally Posted by henk4
    sure but have you calculated from what displacement that will come?
    The model's engine has an actual displacement of 103cc, so it's not technically perfect. He's excused.

    Long Way:

    Real 312PB Bore x Stroke = 78.5 mm * 51.5 mm

    So....

    π x ((1/2)(1/3)(78.5mm))^2 x (1/3)(51.5mm) = 9231.51mm^3 per cylinder

    9231.51mm^3 x 12 = 110778.1mm^3

    = 110.8cc

    Short Way:

    2991cc / 27 = 110.8cc

  11. #11
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    Quote Originally Posted by Egg Nog
    Short Way:

    2991cc / 27 = 110.8cc

    that's what I wanted to see (so not 2991/3)...

    When I first did the official calculation I forgot to square the 1/2 (so I got 444 cc....)

    he says on the video being interviewed by Clarkson that it is 100 cc..so the thing may have more than 10 bhp...
    Last edited by henk4; 01-09-2007 at 01:52 AM.
    "I find the whole business of religion profoundly interesting, but it does mystify me that otherwise intelligent people take it seriously." Douglas Adams

  12. #12
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    Quote Originally Posted by Egg Nog
    The model's engine has an actual displacement of 103cc, so it's not technically perfect. He's excused.

    Long Way:

    Real 312PB Bore x Stroke = 78.5 mm * 51.5 mm

    So....

    π x ((1/2)(1/3)(78.5mm))^2 x (1/3)(51.5mm) = 9231.51mm^3 per cylinder

    9231.51mm^3 x 12 = 110778.1mm^3

    = 110.8cc

    Short Way:

    2991cc / 27 = 110.8cc
    Quote Originally Posted by henk4
    that's what I wanted to see (so not 2991/3)...

    When I first did the official calculation I forgot to square the 1/2 (so I got 444 cc....)

    he says on the video being interviewed by Clarkson that it is 100 cc..so the thing may have more than 10 bhp...
    So much time lost for nothing...
    Quoted from Pierre's website:

    Moteur
    12 cylindres à plat
    Cylindrée : 103 cc
    Course x Alésage : 24mm x 19mm
    Puissance : 8 ch @ 10,500 tr/min
    Refroidissement : 2 radiateurs latéraux pour l'eau et 1 radiateur central pour l'huile
    2 arbres à cames par rangée de cylindres
    48 soupapes
    Injection
    Carter sec
    Money can't buy you friends, but you do get a better class of enemy.

  13. #13
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    That thing is just beyond cool. Especially since he cared about the project so much he learnt how to make things like glass and tyres
    Faster, faster, faster, until the thrill of speed overcomes the fear of death...
    – Hunter Thompson

  14. #14
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    Like i said before, he whould put some servos on it and run it on a track, the only real problem would be the gearbox.
    "Religious belief is the “path of least resistance”, says Boyer, while disbelief requires effort."

  15. #15
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    Quote Originally Posted by ruim20
    Like i said before, he whould put some servos on it and run it on a track, the only real problem would be the gearbox.
    Unfortunatley we may never find out because if I remember rightly, it was auctioned off. But I do believe he started a new project (probably said in the vid ).

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