Specs

• 928
• 928 GT
• 928 GTS
• 928 S
• 928 S4

• 1987
• 1988
• 1989
• 1990
• 1991

1989 928 S4 (928)

Engine

• Type V8
• Induction Normally-aspirated
• Cooling Water-cooled
• Valvetrain Double overhead camshafts
• Injection Port injection
• Bore x Stroke 3.94 in/100.0 mm x 3.11 in/78.9 mm
• Displacement 302.38 cu-in/4,957 cc
• Horsepower 320 @ 6000 rpm
• Torque 317 lb-ft @ 3000 rpm
• Compression Ratio 10.0:1

Transmission

• Options 4-speed automatic, 5-speed manual

Chassis

• Type 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

Brakes

• Caliper Front Fixed 4-piston
• Caliper Rear Fixed 4-piston
• Disc Type Front Ventilated discs
• Disc Type Rear Ventilated discs
• Disc Size Front 11.97 in/304 mm x 1.26 in/32 mm
• Disc Size Rear 11.77 in/299 mm x 1.10 in/28 mm

Performance

• 0 to 60 MPH N/A
• Top Speed 168 mph manual/165 mph automatic

Fuel

• 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+)