Specs

1978 928 928
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1989 928 S4 Coupe (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+)

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