Porsche 928 S4 - Interesting facts (1987)

928 S4 page
updated October 27, 2002

• Reynolds 390 crystal silicon alloy aluminum 5.0L (302ci) hemi V-8 engine
• 4 camshafts (DOHC), 32-valve aluminum heads
• 316 SAE net bhp at 6000rpm (redline at 6200rpm, rev limited at 6800rpm)
• 317 ft/lbs of torque at 3000 rpm (300 ft/lbs from 2750-4500)
• Variable tuned intake for high RPM breathing
• Bosch LH-Jetronic fuel-injection engine management
• Dual coils and distributors with twin knock sensors
• Approximately 7’ timing belt
• Over two gallons of oil
• Rear-mounted transmission via torque tube
• 4-speed automatic transmission made by Mercedes-Benz
• 4-wheel independent suspension
• Weissach rear axle – optimizes rear toe during cornering
• optional 40% locking differential, also known as “limited-slip”
• 4-wheel Antilock Brake System with 4-piston calipers and pad wear sensors
• 51/49% weight balance
• Aluminum hood, doors, front fenders; rear fendors, hatch, and roof are double-dipped galvanized steel
• Hinged rear wing for downforce and smoother airflow
• Mechanized radiator grill flaps aid reduction of drag
• Power everything, all leather, optional rear a/c (even the glovebox is air-conditioned)
• Sales from 1977-1995 worldwide/US: 57,998/25,105
• Sales for 1987 worldwide/US: 4,791/1,967
• Proclaimed by Porsche in 1987 to be the fastest production car available, and immediately proven by Al Holbert capturing two FIA speed records for the flying kilometer and flying mile at Bonneville Salt Flats – 171mph!
• On Sept. 10, 2000, Marc Thomas (of Devek Performance Products) exceeded 209mph at the Pony Express II in Nevada. Although modified, his 1988 “white car” is a daily driver, runs on pump gas, and was driven to the event and back home to greater San Francisco!!

Figures that really add up: