Dino 206 GT and 246 GT

The Dino 206 GT, 246 GT and 246 GTS are V6 mid-engined sports cars produced by Ferrari and sold under the Dino marque between 1967 and 1974.

Dino 206 GT
Dino 246 GT and GTS
Dino 246 GT
Overview
ManufacturerFerrari
Also calledFerrari Dino
DesignerAldo Brovarone at Pininfarina[1]
Body and chassis
ClassSports car (S)
LayoutTransverse, rear mid-engine, rear-wheel-drive
RelatedDino 308 GT4 2+2
Powertrain
EngineDino 65° V6
Chronology
SuccessorFerrari 308 GTB/GTS

The Dino 246 was the first automobile manufactured by Ferrari in high numbers. It is lauded by many for its intrinsic driving qualities and groundbreaking design. In 2004, Sports Car International placed the car at number six on its list of Top Sports Cars of the 1970s. Motor Trend Classic placed the 206/246 at number seven in their list of the 10 "Greatest Ferraris of all time".

Dino 206 GT
Dino 206 GT
Overview
Production1967–1969
152 produced
Body and chassis
Body styleBerlinetta
Powertrain
Engine2.0 L (1,986.60 cc) Dino 65° V6
Transmission5-speed manual
Dimensions
Wheelbase2,280 mm (90 in)[2]
Length4,150 mm (163 in)[2]
Width1,700 mm (67 in)[2]
Height1,115 mm (44 in)[2]
Kerb weight900 kg (1,984.2 lb)[2] (dry)

The production Dino 206 GT was designed by Aldo Brovarone[1] and Leonardo Fioravanti at Pininfarina[3] and built by Scaglietti.[4] It had the soft edges and curving lines typical of earlier Italian cars, unlike its angular successor, the 308 GT4.

The 206 GT used a transverse-mounted 2.0 litre all-aluminum, 65-degree V6 engine with dual overhead camshafts and a 9:1 compression ratio, making 180 PS (178 bhp; 132 kW) at the 8,000 rpm redline. Torque was 138 lb⋅ft (187 N⋅m) at 6,500 rpm. The crankshaft featured four main bearings. Induction was via three Weber 40 DCN/4 2-barrel carburetors. The 206 GT was the first car sold by Ferrari which used an electronic ignition, a Dinoplex C capacitive discharge ignition system that was developed by Magneti Marelli for the high revving Dino V6 engine (hence the name Dinoplex).[5] It was also the first Ferrari product to have a direct rack-and-pinion steering.[4]

The 206 GT frame featured a light-weight, aluminium body, full independent suspension, and all round disc brakes. It had a 90.0-inch (2,290 mm) wheelbase and a top speed of 146 mph (235 km/h).

152 were built in total between 1967-1969, in left hand drive only.[4]

The same 2.0 L (1,986.60 cc) engine was used in the Fiat Dino Coupe and Spider, produced during the same period. The conversion of the Dino 206 SP/S twin-cam racing engine for road-going use in the Dino (and the two Fiat models) was entrusted by Fiat to Aurelio Lampredi, to whom Ferrari owed so many great engines. Lampredi, interviewed in the early 1980s (he died in 1989 at the age of 71), noted that, "Things didn't work out exactly as Ferrari had foreseen." Ferrari had counted on building the engines at Maranello, but Fiat's management insisted on taking control of production, to avoid any breaks in the engine supply.

Fiat quoted 160 hp (119 kW) DIN for the Fiat Dino and Coupé, and in 1967 Ferrari - presenting the first prototype of the Dino 206 GT - claimed 180 hp (134 kW). This, however, was not the case. Both engines were made by Fiat workers in Turin on the same production line, without any discrimination as to their destination, and all were exactly the same. 150 units were simply taken from the first production batch at the beginning of 1968 to power the Dino 206 GTs.

Later Fiat Dinos also used the 2.4L engine, although significantly fewer were produced with this engine.

Dino 246 GT and GTS
Dino 246 GT
Dino 246 GTS
Rear view of a 1973 Dino 246 GTS
Overview
Production1969–1974
3,761 produced
Body and chassis
Body styleBerlinetta (GT)
Targa top (GTS)
Powertrain
Engine2.4 L (2,419.20 cc) Dino 65° V6
Transmission5-speed manual all-synchromesh[6]
Dimensions
Wheelbase2,340 mm (92 in)[7]
Length4,235 mm (167 in)[7]
Width1,700 mm (67 in)[7]
Height1,135 mm (45 in)[7]
Kerb weight1,080 kg (2,381.0 lb)[7] (dry)

Calls for more power were answered with the 2.4 L (2,419.20 cc) Dino 65° V6 engine,[6] DOHC, 2 valves per cylinder, 9.0:1 compression ratio, iron block with alloy heads. It produced 195 PS (192 bhp; 143 kW) at 7,600 rpm and 226 N⋅m; 166 lbf⋅ft (23 kg⋅m) at 5,500 rpm of torque, and was available as a fixed-top GT coupé or, after 1971, an open Spyder GTS. A detuned American version had an exhaust air pump, and timing changes which created 175 hp (130 kW). The GT had 3X2-barrel 40 DCNF/6 or 40 DCNF/7 Weber carburetors. For the 246 a new version of the Dinoplex ignition was deployed, the more compact Magneti Marelli AEC103A system.[5]

The 246 Dino GT weighed 2,380 lb (1,080 kg). The 246 Dino GTS weighed 2,426 lb (1,100 kg). The body was now made of steel to save cost. The 246 Dino had a 2.1-inch (53 mm) longer wheelbase than the 206, at 92.1 inches (2,340 mm). The height of the 246 was the same as the 206 at 43.9 inches (1,120 mm).

Dino 246 production numbered 2,295 GT coupés and 1,274 GTS spyders, the latter being built after the Series III revision from 1972 to 1974 only, for a total production run of 3,569 cars. Three series of the Dino were built, with differences in wheels, windshield wiper coverage, and engine ventilation. The Series I cars, 357 of which were built until the summer of 1970, used the same center-bolt wheels and "clapping hands" windscreen wipers as did the 206. Series II cars (built until July 1971 in 507 examples) received five-bolt Cromodora alloys and parallel moving wipers. The Series III cars had minor differences in gearing and fuel supply, and were built at a much higher rate as sales in the United States commenced with this version. 1,431 Series III GT coupés and 1,274 GTS removable top cars were built.[8]

The 246 had a claimed top speed of 146 mph (235 km/h), although in July 1971 a road test by Britain's Motor magazine reported a top speed of 148 mph (238 km/h), which compared favourably with the 136 mph (219 km/h) achieved by a recently tested (though by now replaced) Porsche 911S.[6] With a 0 – 50 mph (80/km/h) acceleration time of 5.5 seconds the Dino narrowly outperformed the Porsche again, although the Porsche was narrowly the winner on fuel economy.[6] The manufacturer's recommended UK retail price of £5,485 was higher than the £5,211 asked for the Porsche. For comparison, the much larger, four-passenger Citroën SM high-performance luxury coupe sold for £4,700.[6]

US market Dino compared with standard model

The Dino's 2.4 L V6 was used in a number of other Italian performance cars after its application in the 246, most notably the Lancia Stratos rally car.

There were some minor differences in trim for various markets, the most obvious being different marker lights on US market Dinos. Group 4-style flared wheelarches were optional, as were seats from the 365 GTB/4 Daytona, the pair often ordered in conjunction with wide, sand-cast Campagnolo alloy wheels.[8]

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References
  1. Smale, Glen (2010). Ferrari Design: The Definitive Study. Haynes Publishing. pp. 94–105.
  2. "Dino 206 GT". Ferrari official website, past models. Retrieved 10 May 2015.
  3. Ahlgrim, Steve (June 2014). "Amelia Island 1972 Ferrari 365 GTB/4 Daytonas". Sports Car Market. 26 (6): 67.
  4. Tyer, Ben. "Ferrari Dino 206 GT". Hampshire, UK: QV500.com.
  5. "The Magneti Marelli Dinoplex ignition". Dinoplex.org. 2006-10-31. Retrieved 2011-08-04.
  6. Bulmer, Charles (10 July 1971). "Road Test: Ferrari Dino 246GT". Motor: 12–17.
  7. "Dino 246 GT". Ferrari official website, past models. Retrieved 10 May 2015.
  8. Tyer, Ben. "Ferrari Dino 246 GT & GTS". Hampshire, UK: QV500.com.

Bibliography
  • Smale, Glen (2010). Ferrari Design: The Definitive Study. Haynes Publishing. ISBN 978-1-84425-487-3.
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