Alfa Romeo GT 1300 Junior
|Production||1965–1974 (GT 1300 Junior) 1974–1976 (1.3 GT Junior)|
|Body style||2-door coupé|
|Engine||1.3 L DOHC I4|
|Length||4,080 mm (160.6 in)|
|Width||1,580 mm (62.2 in)|
|Height||1,310 mm (51.6 in)|
|Curb weight||930 kg (2,100 lb)|
The GT 1300 Junior was the entry model to the Alfa Romeo coupe range. It was introduced in 1965 as the replacement for the 101 series Giulia Sprint 1300, which was the final development of the Giulietta Sprint series.
The GT 1300 Junior was fitted with the 1300 (1290 cc) twin cam engine (74 mm bore × 75 mm stroke), as fitted to the Giulietta series cars, but revised for the 105 series with reduced port sizes and other modifications. The smaller engine was introduced in order to allow buyers to choose an Alfa Romeo coupe while avoiding the higher taxes on the models with larger engine capacity, especially in Alfa Romeo's home Italian market.
The performance was low-end compared to others in its model line, with a total of 89 bhp (66 kW; 90 PS). However, the GT 1300 Junior's top speed of over 100 mph and 0-60 mph time of 12.6 seconds were very good for a fully appointed coupe with an engine of only 1300 cc displacement.
The GT 1300 Junior was in production for over a decade. Throughout this period it was updated by the factory, incorporating many of the same revisions applied to the larger-engined models.
The first GT 1300 Juniors produced were based on the Giulia Sprint GT, with a simpler interior. The major external identifying feature was the black grille with just one horizontal chrome bar. The same 9/41 final drive ratio was maintained, but with a shorter 5th gear ratio of 0.85, instead of 0.79 as on all the other 105 Series coupes.
Together with the Giulia 1300 Ti, the GT 1300 Junior pioneered the use of ATE disc brakes as later fitted throughout the 105 series, replacing the Dunlop discs on earlier cars. The first few GT 1300 Juniors lacked a brake servo, and had the low rear wheelarches of the Giulia Sprint GT and Giulia Sprint GTV. From 1967, a servo was fitted as standard, together with higher rear wheelarches as adopted later on the 1750 GTV.
In 1968, concurrently with the replacement of the Giulia Sprint GT Veloce by the 1750 GTV, the GT 1300 Junior was revised with many of the new parts from the 1750 GTV. This included the dashboard, the suspension and the new wheel size of 5½ × 14J instead of 4½ × 15J. This revised GT 1300 Junior, however, retained the early "step-front" body style, which, interestingly, makes it the most mechanically refined production "step-front" model. Another intriguing detail is that, just as on the 1750 GTV, the remote release for the boot (trunk) lid, located on the inside of the door opening on the B-post just under the door lock striker, was moved from the right hand side of the car to the left hand side. The location of this item was always independent of whether the car was left hand drive or right hand drive. This series of GT 1300 Junior was the only model with the step-front bodyshell to have this item mounted on the left hand side. All other step-front models - Giulia Sprint GT, Giulia Sprint GT Veloce, and early GT 1300 Junior with flat dashboard - featured this item on the right hand side.
From 1968 on, Alfa Romeo models for the US market were fitted with fuel injection systems instead of carburettors to comply with emissions control legislation. The only 105 Series models in which the classic twin-cam engine was fitted with fuel injection were the US market 1750 range, and the US market 2000 range which replaced the 1750s in mid-1972. No Alfa Romeo 1300 or 1600cc models were ever made with fuel injection.
In 1970 the Junior was revised a second time, and received the same nose treatment as the 1750 GTV, without the step but with only two headlights.
For 1972, new wheels featuring smaller hubcaps with exposed wheel nuts like those on the 2000 GTV were fitted. At the same time, the GT 1600 Junior was introduced alongside the GT 1300 Junior. The GT 1300 Junior was discontinued for the right hand drive UK market but continued to be available in other right hand drive markets.
From 1974 the GT1300 Junior and GT1600 Junior were both rationalised into a common range with the 2000 GTV and were rebadged as 1.3 GT Junior and 1.6 GT Junior