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Video of 1932 Alfa Romeo Monza replica

Discussion in 'Alfa and Maserati' started by aldo90731, Mar 22, 2020.

  1. aldo90731

    Staff Member Level III Supporter

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    Jay Leno made this video of a 1932 Alfa Romeo Monza awhile back. You can see and hear what a 90-year-old Alfa Romeo would have looked, felt and sounded like.

    Love the sound of that engine. Enjoy!

     
    GLHS60, BASONE88 and Morty like this.
  2. Morty

    Morty Well-Known Member

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    @aldo90731
    The "Golden era" of motoring? One of my most memorable drives was in a 1938 Lagonda V12 Le Mans from the UK - ferry to Calais (France), through Belgium, Germany, Denmark and Sweden to Norway. :)
    Lagonda-V12-Le-Mans-30494.jpg
     
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  3. aldo90731

    Staff Member Level III Supporter

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    This is a fun video of a 1917 Fiat Botafogo Special. The car is a beast with a 22-litre aero motor!

     
    page2171 and Morty like this.
  4. GLHS60

    GLHS60 Well-Known Member

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    Technical Trivia Question:

    Early, giant Engined cars like the Fiat above had chain drive to the rear wheels.

    What was the technical purpose behind chain drive on these monsters??

    Thanks
    Randy

    Picture of a 1914 Simplex with chain drive for clues.

    [​IMG]
     
    #4 GLHS60, Mar 23, 2020
    Last edited: Mar 23, 2020
  5. KrisW

    KrisW Well-Known Member

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    @GLHS60 My guess is that the chain gears allow the wheels to travel a lot more than if directly coupled.. 1910s roads at 40+ mph with such thin tires means a lot of bumping . Also, something about the small cog mounted onto the rear leaf spring makes me think its to do with reducing unsprung weight.. That rear differential looks big and heavy.

    That Botafogo isn't even the biggest FIAT: "Mefistofole" had a 24-litre engine and literally breathed fire.
     
  6. GLHS60

    GLHS60 Well-Known Member

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    Good guess but its actually to enhance traction.

    With a ring and pinion the pinion tries to climb the ring gear under heavy torque.

    This is evident in drag racing where the right rear wheel rises causing the left front to lift first.

    Chain drive by passes this phenomenon as the differential is solid with the chassis.

    If the differential was in the normal spot the skinny right tire of the day would spin endlessly.

    Chain drive enables equal torque to each shinny tire, bypassing the tire lifting, pinion climbing.

    Below is an extreme example of the phenomenon described above!!

    Even moderately powered cars lift the left front tire first.

    Todays lesson complete.

    Thanks
    Randy





    [​IMG]
     
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