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  Penske PC4 Cosworth

  Article Image gallery (21) PC4/001 Specifications User Comments (1)  
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Country of origin:United States
Produced in:1976
Numbers built:3
Designed by:Geof Ferris for Penske
Predecessor:Penske PC3 Cosworth
Author:Wouter Melissen
Last updated:February 18, 2011
Download: All images

Configuration Aston Martin Straight 6
Location Mid, longitudinally mounted
Construction alloy block and head
Displacement 3,995 cc / 243.8 cu in
Bore / Stroke 96.0 mm (3.8 in) / 92.0 mm (3.6 in)
Compression 8.9:1
Valvetrain 2 valves / cylinder, DOHC
Fuel feed 3 Weber Carburettors
Aspiration Naturally Aspirated
Power 314 bhp / 234 KW
BHP/Liter 79 bhp / liter

Chassis aluminium monocoque with fully stressed engine
Front suspension lower wishbones, top rockers actuating in-board coil springs over dampers, anti-roll bar
Rear suspension single top links, twin lower links, twin trailing arms, coil springs over dampers, anti-roll bar
Steering rack-and-pinion
Brakes ventilated discs, all-round, rear in-board
Gearbox Hewland DG 400 5 speed Manual
Drive Rear wheel drive

Weight 590 kilo / 1,301 lbs
Wheelbase / Track (fr/r) 2,692 mm (106 in) / 1,422 mm (56 in) / 1,473 mm (58 in)

Performance figures
Power to weight 0.53 bhp / kg

Race history
Major wins
1976 Austrian Grand Prix (John Watson in PC4/1)

Suggested reading
  • Penske Racing Team - 40 Years of Excellence, by Alan Hummel
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  Article Image gallery (21) PC4/001 Specifications User Comments (1)