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Porsche 928 S4 (1989) – Specifications & Performance

1989 Porsche 928 S Technical Specifications

Model Year & Variant 1989 928 S4
Model Year 1989
Model Variant 928 S4
Type V8
Induction Normally-aspirated
Cooling Water-cooled
Valvetrain Double overhead camshafts
Injection Port injection
Bore & Stroke 3.94 in/100.0 mm x 3.11 in/78.9 mm
Displacement 302.38 cu-in/4,957 cc
Power 320 bhp @ 6000 rpm
Torque 317 lb-ft @ 3000 rpm
Max RPM 6000 rpm
Compression Ratio 10.0:1
Transmission 4-speed auto, 5-speed manual
Layout Front-engined, rear-wheel drive
Curb Weight 3,505 lbs. manual/3,549 lbs. automatic
Height 50.51 in/1,283 mm
Ground Clearance N/A
Length 178.07 in/4,523 mm
Wheelbase 98.43 in/2,500 mm
Width 72.28 in/1,836 mm
Track Front 61.06 in/1,551 mm
Track Rear 60.87 in/1,546 mm
Drag Coefficient 0.34
Wheel Size Front 16 x 7
Wheel Size Rear 16 x 8
Tire Size Front 225/50VR-16
Tire Size Rear 245/45VR-16
Brake Caliper Front Fixed 4-piston
Brake Caliper Rear Fixed 4-piston
Brake Disc Type Front Ventilated discs
Brake Disc Type Rear Ventilated discs
Brake 11.97 in/304 mm x 1.26 in/32 mm
Brake Disc Size Rear 11.77 in/299 mm x 1.10 in/28 mm
0 to 60 mph time 5.6 seconds
Top Speed 168 mph manual/165 mph automatic
MPG City 13 manual/14 automatic
MPG Highway 20 manual/17 automatic
MPG Combined 15 manual/15 automatic
Fuel Tank Capacity 22.7 U.S. gallons
Required Octane Premium unleaded (91+)
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