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Porsche 928 S (1984) – Specifications & Performance

1984 Porsche 928 S Technical Specifications

Originally displacing 4.5 L and featuring a single overhead camshaft design, Porsche enlarged and revised the engine in 1980 onwards. The engine was now a 4.7 L V8. It featured a direct fuel injection, which helped to get better fuel efficiency and lower the emissions. The engineers paired the V8 unit to a 5-speed manual. Specs are for the US models.

Model Year & Variant 1984 928 S
Model Year 1984
Model Variant 928 S
Type V8
Induction Normally-aspirated
Cooling Water-cooled
Valvetrain Single overhead camshafts
Injection Port injection
Bore & Stroke 3.82 in/97.0 mm x 3.12 in/78.9 mm
Displacement 284.5 ci/4,664 cc
Power 234 bhp @ 5500 rpm
Torque 263 lb-ft @ 4000 rpm
Max RPM 6000 rpm
Compression Ratio 9.3:1
Transmission 4-speed auto
Layout Front-engined, rear-wheel drive
Curb Weight 3,197 lbs. manual/3,285 lbs. auto
Height 51.61 in/1,311 mm
Ground Clearance 4.69 in/119 mm
Length 175.67 in/4,462 mm
Wheelbase 98.43 in/2,500 mm
Width 72.28 in/1,836 mm
Track Front 60.98 in/1,549 mm
Track Rear 59.88 in/1,521 mm
Drag Coefficient 0.38
Wheel Size Front 16 x 7
Wheel Size Rear 16 x 7
Tire Size Front 225/50VR-16
Tire Size Rear 225/50VR-16
Brake Caliper Front Floating 1-piston
Brake Caliper Rear Floating 1-piston
Brake Disc Type Front Ventilated discs
Brake Disc Type Rear Ventilated discs
Brake 11.10 in/282 mm x .81 in/20.6 mm
Brake Disc Size Rear 11.42 in/290 mm x .81 in/20.6 mm
0 to 60 mph time ~ 6.6 seconds
Top Speed 146 mph manual/143 mph automatic
MPG City 13 manual/14 automatic
MPG Highway 20 manual/18 automatic
MPG Combined 15 manual/15 automatic
Fuel Tank Capacity 22.7 U.S. gallons
Required Octane Premium unleaded (91+)