944 Turbo S: Specifications

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The following tabled information, which outlines the specifications of the 944 Turbo S, was taken primarily from the official 944 Turbo manual, however other information was collected from various sources cited throughout the resource, including magazine articles such as Car and Driver’s June 1988 review. The information below highlights dimensions, weight, overviews the engine and power train, chassis and suspension, as well as brakes, wheels, tires, and subsequent performance figures of the 944 Turbo S.

Dimensions:

  • Length: 168.85 in. / 4289 mm
  • Width: 68.31 in. / 1735 mm
  • Height: 50.20 in. / 1275 mm
  • Wheel base: 50.20 in. / 1275 mm
  • Wheel track, front: 57.40 in. / 1457 mm
  • Wheel track, rear: 56.50 in. / 1436 mm
  • Ground clearance*: 4.92 in. / 125 mm (* at total permissible weight)

Weight:

  • Curb weight: 2998 lbs. / 1360 kg
  • Maximum load capacity: 650 lbs. / 285 kg
  • Total permissible weight: 3626 lbs. / 1645 kg

Engine (M44/52):

  • Powerplant: 8 valve SOHC in-line 4
  • Construction: Aluminum block and heads
  • Displacement: 2,479cc
  • Values: 2 valves per cylinder
  • Location: Front
  • Bore: 100 mm
  • Stroke: 78.9 mm
  • Compression ratio: 8.0:1
  • Fuel system: Bosch L-jetronic injection
  • Max rpm: 6,500
  • KKK K-26 #8 turbocharger
  • Max boost: 1.82 bar
  • Power: 247 bhp @ 6000 rpm
  • Torque: 258 ft-lb @ 4000 rpm
  • Output per liter: 99.6 SAE net-hp

Power Train:

  • Gear ratio:
    • 1st gear: 3.500:1
    • 2nd gear: 2.095:1
    • 3rd gear: 1.400:1
    • 4th gear: 1.034:1
    • 5th gear: 0.829:1
    • Reverse gear: 3.500:1
  • Axle ratio: 3.375:1
  • Clutch: Single plate dry dics, hydraulically operated
  • Power transmission: Double constant velocity joints and drive shaft

Chassis and Suspension:

  • Front: MacPherson struts with lower A-arms, coil springs, tube shocks, anti-roll bar
  • Rear: Semi-trailing arms, torsion bars, tube shocks (Koni; adjustable), anti-roll bar
  • M474: Sport suspension (Koni): strut assemblies, strut boots, bump stops, adjustable shock absorbers

Brake System:

  • Description: Hydraulic dual circuit brake system with front/rear brake circuits, Brake power assist (ABS)
  • Discs: Internally ventilated disc brakes front and rear
  • Calipers: S-4 Calipers (from 928 S-4)

Wheels and Tires:

  • Type: Club Sport forged aluminum wheels 225/50 ZR
  • Front: 16×7.0″ 245/45 ZR
  • Rear: 16×9.0″ 165-15 PR 89 P on rim 5 1/2 J x 15 H2

Options:

Performance Figures:

  • 0-60 mph: 5.5 seconds
  • Standing quarter mile time: 13.9 seconds (some sources cite 13.5)
  • Top speed: 162 mph/260 km/h (electronically limited)

(The following Performance figures were gathered both from official Porsche claims, as well as actual magazine test results. The times that are highlighted represent the best times achieved, which in some cases are above Porsches official claims, not uncommon considering Porsche’s typically conservative performance estimates.)

Car and Driver’s June 1988 road test data highlighted the 944 Turbo’s phenomenally fast mid-range acceleration, which by the standards of the day not only threatened a spectrum largely dominated by eight cylinder engines, but also attested to Porsches highly successful engine and turbo technological innovativeness.

Distance (miles per hour): Time (seconds):

  • 0-30 = 2.2
  • 0-40 = 3.3
  • 0-50 = 4.3
  • 0-60 = 5.5
  • 0-70 = 7.3
  • 0-80 = 9.1
  • 0-90 = 11.3
  • 0-100 = 14.1

Top-gear passing time:

  • 30-50 mph 10.1[*]
  • 50-70 mph 7.1

The Turbo S’s specifications undoubtedly highlight the super car within the Turbo S, whose composition hints at a fusion of technology and mechanical elegance. Moreover, the continuity between the road going S version and its Turbo Cup race spec counterpart is apparent when the specifications, particularly the engine, chassis and suspension, and brakes are compared. Although the weight of the cars differed drastically, and the Turbo S’s subsequent performance was significantly lesser, the street legal S retained similar specifications to the Cup car.

[*] It should be noted that the times calculated were achieved on a car whose gearing had been modified. Although the 5.5 0-60 time is consistent with other road tests, the quarter mile of time of the car is slower (13.9 compared with the factory claim of 13.6). Furthermore, the S’s top speed is significantly reduced (140 mph compared with 160 mph).


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