Engineering:Dino 206 GT and 246 GT

Short description: 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
Manufacturer	Ferrari
Designer	Pininfarina Aldo Brovarone Leonardo Fioravanti
Body and chassis
Class	Sports car (S)
Layout	Transverse, rear mid-engine, rear-wheel-drive
Powertrain
Engine	Dino 65° V6
Chronology
Successor	Dino 308 GT4 2+2 & Ferrari 308 GTB/GTS

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.

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
Also called	Ferrari Dino 206 GT
Production	1967–1969 152 produced
Body and chassis
Body style	Berlinetta
Powertrain
Engine	2.0 L (1,986.60 cc) Dino 65° V6
Transmission	5-speed manual
Dimensions
Wheelbase	2,280 mm (90 in)
Length	4,150 mm (163 in)
Width	1,700 mm (67 in)
Height	1,115 mm (44 in)
uk|uk|Kerb|Curb}} weight	900 kg (1,984.2 lb) (dry)

Dino Berlinetta Speciale, the concept design that inspired the 206 GT

Dino Berlinetta GT prototype s/n 00106, displayed at the Petersen Automotive Museum

The production Dino 206 GT was designed by Aldo Brovarone and Leonardo Fioravanti at Pininfarina and built by Scaglietti. 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-aluminium, 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. It was also the first Ferrari product to have a direct rack-and-pinion steering.

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 and 1969, in left hand drive only.

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

Dino 246 GT and GTS

1972 Dino 246 GTS interior

Dino 246 GT Dino 246 GTS
Rear view of a 1973 US-spec Dino 246 GTS with optional Campagnolo wheels
Overview
Also called	Ferrari Dino 246 GT Ferrari Dino 246 GTS
Production	1969–1974 3,569 produced
Body and chassis
Body style	Berlinetta (GT) Targa top (GTS)
Powertrain
Engine	2.4 L (2,419.20 cc) Dino 65° V6
Transmission	5-speed manual all-synchromesh
Dimensions
Wheelbase	2,340 mm (92 in)
Length	4,235 mm (167 in)
Width	1,700 mm (67 in)
Height	1,135 mm (45 in)
uk|uk|Kerb|Curb}} weight	1,080 kg (2,381.0 lb) (dry)

Calls for more power were answered with the 2.4 L (2,419.20 cc) Dino 65° V6 engine, 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 resulted in 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.

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 mostly 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). The new car had a revised interior. Other differences were 2 rows of 7 vents on the slightly longer engine lid of the 246 instead of 6 and a fuel cap flap cover instead of the exposed one of the 206.

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 (also known as L series), 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 (M series, built until July 1971 in 507 examples) received five-bolt Cromodora alloys and parallel moving wipers. The Series III cars (E series) 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.

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. With a 0 to 50 mph (0 to 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. 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.

A Dino 246 GTS won the Cannonball Baker Sea-to-Shining-Sea Memorial Trophy Dash in 1975.

In one 1978 incident, a Dino 246 GTS was discovered buried in a yard by some Los Angeles children. The car was later found to be the subject of an elaborate insurance fraud perpetrated by the owner.

US market Dino compared with standard model

The Dino's 2.4 L V6 was also used in the Fiat Dino 2400 and the Lancia Stratos rally car.

There were some minor differences in trim for various markets, the most obvious being 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.

• 246 GTS at the Museo Casa Enzo Ferrari
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References

Bibliography

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

External links

• Dino Register
• Club Dino Italia Ferrari, Fiat, Lancia Stratos
• Dino UK Ferrari, Fiat, Lancia Stratos