Alfa Romeo's competition models during the 1960s included names such as the SZ, TZ, and TZ2, along with the Tipo 33 sports racing prototypes which were very competitive on the world's circuits. Alfa Romeo's production racing classes included the 105-series Giulia Sprint GT and the racing version, the GTA.
The Giulia was an evolution of the post-war Giulietta. The Giulia Sprint GT Coupe wore styling by Giorgetto Giugiaro of Bertone and was equipped with a five-speed manual gearbox, a high-revving inline four-cylinder engine, and four-wheel disc brakes.
Most Alfa Romeo Giulia Sprint GTAs were supplied in 'Stradale' form or upgraded to 'Corsa' specification, meaning they were destined for competition. The GTAs were prepared under Autodelta, Alfa Romeo's in-house competition department, run by engineer Carlo Chiti. The 'A' in GTA represented 'Alleggerita' or 'lightened.' Introduced in 1965, they had aluminum body panels and various other lightweight components. The engine was a twin spark plug head on the 1570cc twin-cam engine and Weber 45 DCOE carburetors. The exteriors were identical to the road-going Sprint GT, the GTA differed by virtue of its aluminum body panels. The interior was lightened, lightweight material was used for the suspension, and the side and rear windows were made from Plexiglas. The weight-saving measures reduced weight by around 200 kilograms over the steel-bodied cars. The twin-cam 1,570cc four received extensive modifications and the angle between the vales was reduced from 90 to 80 degrees and the valve sizes substantially increased. Since there was no longer room between the vales for a central spark plug, a change was made to twin-plug ignition. The revised engine increased horsepower from 115 bhp to 170 bhp. The engine was backed by a modified five-speed manual gearbox with a magnesium casing, which had closer ratios for track use and machined gears to reduce weight and provide for faster shifts.
The GTA made its racing debut on 20th March 1966 at Monza where Andrea de Adamich and Teodoro Zeccoli triumphed in the Jolly Club Four-Hour Race. The GTA won numerous championships including the Under 2-Liter Class in the inaugural season of the SCCA Trans-Am series in 1966. They won the European Touring Car Championship three years running from 1966-68.
Alfa Romeo built approximately 500 road going stradle and race-prepared corsa GTS between 1965 and 1969, satisfying homologation requirements. by Daniel Vaughan | Aug 2019
Related Reading : Alfa Romeo Giulia Sprint 1600 GTA History
The Alfa Romeo GTA was a vehicle designed for both road and track, and produced from 1965 through 1971. The GTA was given aluminum body panels in-place of steel, which reduced the weight of the vehicle greatly. Continuing with this weight-loss plan, Alfa Romeo outfitted the cars with alloy wheels and clear plastic windows. Inside, many of the components were formed from lightweight material and.... Continue Reading >>
Related Reading : Alfa Romeo Giulia History
A delightfully charismatic car that proved a highly successful seller, the Alfa Romeo Giulia replaced the outgoing Giulietta beginning in 1962. Alfa Romeo produced the Giulia in myriad configurations, some drastically different from other models in the series but all with a unifying thread of polished driving fun. The name Giulietta means little Giulia in Italian, so the Alfa Giulia title was.... Continue Reading >>
Related Reading : Alfa Romeo Giulia History
The first generation of the Giulia, also known as the 105 series, was introduced at the Monaz Autodrome in the early 1960s. The vehicles shared the same bodies as the vehicles they were replacing, the Giulietta. Power came from 1570 cc 4-cylinder engines using hemispheric combustion chambers and producing over 90 horsepower. The five-speed manual gearbox was operated by a column-mounted shift. The.... Continue Reading >>
The GTA was developed by Alfa Romeo's Autodelta race shop. The GTA was a lightweight version of the already small and light GTV. It was powered by a 1,570 cc DOHC 4-cylinder developing 175 hp. ....[continue reading]
Alfa Romeo's tradition of technical excellence proven in competition as a world class marque was in question of survival following World War II. Decisions were made in secret that led to the small, lightweight, high performance Giulietta Sprint intro....[continue reading]
In 1965, Alfa Romeo introduced the Giula GTA model designed by Bertone. 500 cars were produced for homologation purpose to race in the European Touring Championship. Autodelta, directed by Carlo Chiti, prepared these racing GTA's.....[continue reading]
This GTA 1600 example was completed on December 10th of 1965 and delivered on March 21st of 1966 to Guido Garufi of Palermo, Italy. Mr. Garufi intended to compete with the car in the Targa Florio. He was listed as an entrant with an Alfa Romeo but di....[continue reading]
This 1965 Alfa Romeo 1600 GTA was raced by Lee Midgley in the 1970 & 1971 Trans Am Opener at Laguna Seca & also the Trans Am at Mont Treblant later that season. He finished 2nd in points in 1970 & also raced a full season in the 1971 Trans Am but di....[continue reading]
This car was manufactured on July 11th of 1965 and then delivered to Alfa Romeo of Great Britain. From 1965-1967 it was owned by Alfa Romeo Great Britain. From 1967 through 1969 it was owned by Edward Thorpe. It raced in FIA and ETCC events by var....[continue reading]
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