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  Porsche 911 Carrera RSR 3.0
 

  Article Image gallery (242) Chassis (9) Specifications  
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Country of origin:Germany
Produced from:1974 - 1975
Numbers built:60
Internal name:M491
Predecessor:Porsche 911 Carrera RSR 2.8
Author:Wouter Melissen
Last updated:April 30, 2015
Download: All images

Engine
Configuration 911/75 B6
Location Rear, longitudinally mounted
Construction magnesium alloy block and head
Displacement 2,996 cc / 182.8 cu in
Bore / Stroke 95.0 mm (3.7 in) / 70.4 mm (2.8 in)
Compression 10.5:1
Valvetrain 2 valves / cylinder, SOHC
Fuel feed Bosch Fuel Injection
Ignition Twin Spark
Lubrication Dry sump
Aspiration Naturally Aspirated
Power 330 bhp / 246 KW @ 8,000 rpm
Torque 314 Nm / 232 ft lbs @ 6,500 rpm
BHP/Liter 110 bhp / liter

Drivetrain
Body steel and fibreglass panels
Chassis unitary steel
Front suspension McPherson struts, lower wishbones, coil springs over Bilstein shock absorbers
Rear suspension trailing arms, coil springs over telescopic Bilstein dampers
Steering rack-and-pinion
Brakes (fr/r) ventilated discs
Gearbox Type 915 5 speed Manual
Drive Rear wheel drive

Dimensions
Weight 900 kilo / 1,984 lbs
Length / Width / Height 4,350 mm (171.3 in) / 1,896 mm (74.6 in) / 1,300 mm (51.2 in)
Wheelbase / Track (fr/r) 2,272 mm (89.4 in) / 1,402 mm (55.2 in) / 1,422 mm (56 in)
Fuel tank 110 Litre (29.1 Gallon US / 24.2 Gallon Imperial)

Performance figures
Power to weight 0.37 bhp / kg
Top Speed 288 km/h (179 mph)

Race history
Major wins
1975 Daytona 24 Hours (Peter Gregg / Hurley Haywood in 911 460 9054)
1976 Sebring 12 Hours (Al Holbert / Mike Keyser in 911 460 9048)
1977 Daytona 24 Hours (Hurley Haywood / John Graves / Dave Helmick in 911 560 9112)
1977 Sebring 12 Hours (George Dyer / Brad Frisselle in 911 460 9056)

Auctions
Past sales

Resources
Suggested reading
  • Porsche, Excellence was expected, by Karl Ludvigsen
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  Article Image gallery (242) Chassis (9) Specifications