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Turbo

3.3 Turbo

The 964 Turbo was first introduced in March 1990 (1991 model year), when the 3.3 version was produced based on the Carrera 2 chassis. 

The engine utilised in this vehicle was the old 3.3 engine from the previous 1989 Turbo, modified to extract additional power. Performance quoted was 320bhp at 5750rpm and 450Nm torque at 4500rpm. Due to the remapped Motronic system, the car was not only more powerful, but provided improved fuel efficiency and emissions.

3.6 Turbo

The 3.6 Turbo was introduced in October 1992. The engine, a development of the 3.6 Carrera 4 and 2 unit, was utilised.

Compared with the 3.3 unit, the 3.6's compression ratio was increased from 7.0:1 to 7.5:1. Power rose to 360bhp and 520Nm, with unchanged fuel consumption.

Unfortunately, the infamous turbo lag still prevailed in this model, although less noticeable than when compared against earlier models.

Note that this automobile was also produced in a very limited run of flat noses (mechanicals identical to standard 3.6 Turbo).

Turbo S

The rarest of the 964 Turbos, only 80 of these were made. It was recognised that the 3.3 Turbo was not all that it could have been, and Porsche had determined that a variant of the 3.3 Turbo be produced pending the final introduction of the 3.6 Turbo. Power of the Turbo S was increased to 381bhp at 6000rpm, with maximum torque of 490Nm being reached at 4800rpm.

In order to enhance performance, it was decided that the car would be designed in the same mold as the Carrera 2 RS, ie: lightweight with increased power. To this end, the Turbo S had a stripped out interior (no rear seats, bucket seats at the front, fabric door pulls and mechanical winding windows). Additionally, the doors, the rear engine lid and the front luggage compartment were all made out of composite materials. All this added up to a Turbo that weighed 190kg less than the standard 3.3 whilst producing higher power- a formidable combination that allowed the car to reach 100kmh in under 4.7 seconds. Note that the key external differentiating feature are air vents at each rear fender just in front of the rear wheel that provided much needed additional air flow into the motor.

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Press shot of 964 Turbo S. Note the front air ducts providing cooling to the front discs and the side engine air vents.

Standard 3.6 Turbo. Note the 3.6 script aside the Turbo signage. Note the large flared front and rear wheel arches when compared to a standard 964 coupe.

More pictures coming in the near future. Stay tuned.