1957 Porsche 356A/1500GS Carrera GT Coupé


1957 Porsche 356A/1500GS Carrera GT Coupé

In May of 1957, Porsche offered two distinct versions of the Carrera, one called the de Luxe for the street and this model, the Gran Turismo, for the track. The main difference between the two models was weight.

The Carrera GT was a purpose-built car with little on board amenities. For instance, no heater was fitted giving the car its ‘icebox’ nickname. Furthermore, the interior was stripped of sound deadening, side windows were replaced by pull-up Perspex units and only simple door panels were fitted.

Further weight reduction was found on components like the lightened bumper brackets, Nardi aluminum steering wheel and no undercoating.

Mechanically, the GT model was only slightly more powerful than the de Luxe, having sports muffler which provided little deadening and no heater. At the front, a 21 gallon tank was fitted instead of the 13.8 gallon unit.

Front braking was provided by 550RS units that were 10mm thicker and had cooling scoops. The torsion bars were also changed at the rear to provide one degree of negative camber.

Offered as both Coupe and Speedster the GT version was considerably lighter than any previous 356. The weight was 1903 lbs for coupe and 1848 for the speedster. Naturally performance values were slightly different between the two versions.

Racing

Some of the first Carrera GTs were raced in 1957 at the 12 Hours of Reims by von Hanstein and Hild, but with enlarged engines using slighly larger pistons to make a displacement of 1529cc. They won their class and finished sixth and seventh overall.

Probably the GT’s best moment came when Claude Storez used a Speedster to claim victory at the Liege-Rome-Liege rally in 1957. He used the same car to place fifth overall at the Tour de France.

1958 Upgrades

In late 1958 the new T2 body style was released and Porsche offered an even better version of the Carrera GT. Offered both as a Coupe or Speedster the new car featured aluminum doors and engine hoods. These can be identified by louvers on the rear deck and an opening for the fuel filler cap on the front hood. Other less known refinements included a larger steering box, stronger front spindles and improved transmission.

Aluminum was also used in the bucket seat frames, two piece wheels with allow insert and aluminum trim strips for the front/rear bumpers. Less than 10 of these models were offered with quad-cam engines.

Porsche also fitted some factory race cars with Weber carburetors for 125 bhp and an external oil cooler. One of these was raced by Huschke von Hanstein and Herbert Linge to win the 1600cc class at the 1958 Sebring 12 Hour race. This same silver coupe went on to win its class at the Targa Florio.

Other cars continued the Carrera’s success throughout 1958 including Emanuel Pupilidy who won the SCCA’s F Production class.

Seinfeld’s Car

Our feature car is Seinfelds personal 356 which is reported to be a real Carrera GT, which if true is one of the first made. At some point he had it upgraded for $125,000, installing an incorrect, but more reliable push-rod engine. The car was sold at Barrett-Jackson for only $64,800 which leads us to believe this wasn’t an original Carrera GT.

Story by Richard Owen

1957_Porsche_356A1500GSCarreraGTCoup1

 

In Detail

submitted byadmin
typeRacing Car
body stylistReutter Karosserie
engineType 547/1 Flat-4 w/Dry Sump Lubrication
positionRear, Longitudinal
aspirationNatural
valvetrainDOHC, 4 Valves per Cyl
fuel feed2 Type 40PII Solex Carburetors or Optional Webers
displacement1498 cc / 91.41 in³
bore85 mm / 3.3 in
stroke66 mm / 2.6 in
compression9:1
power82 kw / 110 bhp @ 6400 rpm
specific output73.43 bhp per litre
bhp/weight127.32 bhp per tonne
torque118.6 nm / 87.5 ft lbs @ 5200 rpm
body / frameUnit Steel
driven wheelsRWD
front brakes550RS Discs w/Cooling Scoops
curb weight863.96 kg / 1903 lbs
fuel capacity79.48 litres or 21 gal