1973 Dino 246GT *06748* Competition | FerrariChat

1973 Dino 246GT *06748* Competition

Discussion in '206/246' started by 4CamGT, Mar 20, 2016.

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  1. 4CamGT

    4CamGT F1 Rookie

    Jun 23, 2004
    2,649
    Southern California
    #1 4CamGT, Mar 20, 2016
    Last edited: Mar 20, 2016
    I would love to learn more about the technical details on this Dino! It has a
    Colotti close ratio straight cut gearbox with Autobloccante semi oscillating type limited slip differential. The Colotti website is really limited on info. Can someone educate us on these gearboxes? Looks as though it runs a Stratos Weber induction system except they're 48's. I'd also love to see this Dino in action! Any videos out there? I've seen previous F-Chat threads on this car but details are really limited. Anything on it would be appreciated!

    Freeman

    https://www.classicdriver.com/en/car/ferrari/dino-246-gt/1971/181002

    https://barchetta.mediacenter.pro/Automobiles/-/Automobiles-by-Make-Model-Chassis/Dino/sn.dino/06000-06998/06748/?Dir=2051741&rd=1964537

    Colotti Trasmissioni


    Old description from 1973 Ferrari Dino 246 GT ? Competition? | Coys of Kensington

    DESCRIPTION
    This classic and nowadays much sought after Ferrari was named after Enzo Ferrari’s son Alfredino, who died in 1956 aged just 24. Enzo credits his son with the inspiration for a series of successful small and medium capacity V6 racing engines built by Ferrari from 1956 and in turn the name was given to a new line of mid-engined production Ferrari V6 Coupes which first went on sale in 1969 in 2 Litre form.The definitive 246 Dino, with its 2.4 litre V6, appeared in late 1969 and fewer than 4000 were built, of which 1200 were the GTS model. The delightful bodywork was designed by Pininfarina and was built in steel by Scaglietti. It covered a straightforward chassis of tubular steel which carried wishbone independent suspension at each corner. The compact engine, with four chain driven overhead camshafts, was mounted transversely above the five-speed gearbox and just ahead of the rear axle line, allowing both a comfortable cockpit and usable boot space.
    This rare matching numbers, unusual and extremely eligible car was delivered new in 1973 as a road car, which was then
    prepared subsequently by Garage Francorchamp for a former owner who competed extensively in the car in a number of Hill Climbs, sprints, races and other competition events to include Ferrari Club events through the 1970s and 1980s. The car has subsequently been in two renowned collections of historic race cars, in England and Spain from where the car has come from to be offered for sale.
    The car features homologated Colotti close ratio straight cut gearbox with Autobloccante semi oscillating type limited slip differential, up-rated AP 4 pot brakes, a Premier safety fuel tank, up-rated anti-roll bar, Koni shock absorbers and Perspex windows. The original 6 cylinder engine is fitted with 3 Weber Twin choke 48s though competition exhaust system – the sound of which can only be described as “ a Maranello Symphony”. This fully race prepared Ferrari has taken part in numerous club events and is eligible for many important International events on the historic calender. It also comes with documentation and invoices from Terry Hoyle Racing and also UK – MSA papers. Not to be missed.
     
  2. 4CamGT

    4CamGT F1 Rookie

    Jun 23, 2004
    2,649
    Southern California
    #2 4CamGT, Mar 20, 2016
    Last edited by a moderator: Sep 7, 2017
  3. 4CamGT

    4CamGT F1 Rookie

    Jun 23, 2004
    2,649
    Southern California
    #3 4CamGT, Mar 20, 2016
    Last edited by a moderator: Sep 7, 2017
  4. Pantdino4

    Pantdino4 Karting

    Sep 17, 2015
    148
    Los Angeles
    Full Name:
    Jim Oddie
    It looks like the engine cover is simply propped open to clear the Stratos induction system.
     
  5. 4CamGT

    4CamGT F1 Rookie

    Jun 23, 2004
    2,649
    Southern California
    Easiest, simplest way to clear the carbs and get the most air. Aesthetically there are better solutions. What intrigues me the most is the overall technical package; carbs, brakes, gearbox, wheels, tires etc. Tires look like 185/70HR14 Avon CR6ZZ on 7X14 wheels. I like that this Dino is set up to be used at it's extreme! Anyone know more about the Colotti gearbox?

    Freeman
     
  6. racerboy9

    racerboy9 Formula 3
    Silver Subscribed

    Nov 3, 2003
    2,499
  7. 4CamGT

    4CamGT F1 Rookie

    Jun 23, 2004
    2,649
    Southern California
    I went on the website but couldn't find any usable details except the topic listing. Any user experiences or knowledge by anyone? Dino or Stratos?

    Freeman
     
  8. racerboy9

    racerboy9 Formula 3
    Silver Subscribed

    Nov 3, 2003
    2,499
    If you click on the topic line you can see pictures of the gearbox parts.
     
  9. 4CamGT

    4CamGT F1 Rookie

    Jun 23, 2004
    2,649
    Southern California
    Are you running a stock or modified gearbox with your Stratos spec motor?

    Freeman
     
  10. racerboy9

    racerboy9 Formula 3
    Silver Subscribed

    Nov 3, 2003
    2,499
    Running the factory comp dog box but not straight cut gears. I've heard the newer Colotti straight cut gearbox is much better than the original factory straight gearbox. You would need the taller transfer gear set and possibly the taller ring and pinion for the street as most of the transfer gears are set up for lower gearing.
     

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