via https://www.youtube.com/watch?v=lc-E3i5Ayb8
Porsche 917K (Kurzheck) - Technical Specifications
General Information
Manufacturer: Porsche AG
Production Years: 1969–1971
Category: Group 5 Sports Prototype
Notable Wins: 24 Hours of Le Mans (1970, 1971)
Chassis and Body
Chassis Type: Aluminum space frame with fiberglass body panels
Body Style: 2-door coupé, short tail version (Kurzheck)
Weight: Approximately 800–850 kg (1,764–1,874 lbs)
Length: Approximately 4,000 mm (157.5 in)
Width: Approximately 1,980 mm (77.9 in)
Height: Approximately 940 mm (37.0 in)
Wheelbase: 2,310 mm (90.9 in)
Engine
Engine Type: Naturally aspirated flat-12 (180-degree V12 layout)
Displacement: Ranges from 4.5 to 4.9 liters (typically 4,494 cc or 4,907 cc)
Configuration: Air-cooled, DOHC, 2 valves per cylinder
Power Output: Around 580 hp at 8,300 rpm for 4.5L, up to 630 hp at 8,400 rpm for 4.9L
Torque: Approximately 560 Nm (413 lb-ft)
Fuel System: Mechanical fuel injection
Lubrication: Dry sump system
Transmission
Gearbox: 5-speed manual (Porsche Type 920)
Drivetrain: Rear-wheel drive
Performance
Top Speed: Around 340 km/h (211 mph) for 917K, up to 386 km/h (240 mph) for long-tail version
0–100 km/h Acceleration: Approximately 2.5 to 3.0 seconds depending on setup
Power-to-Weight Ratio: Over 700 hp per ton
Suspension
Front: Double wishbones with coil springs and telescopic dampers
Rear: Multilink suspension with coil springs and telescopic dampers
Brakes
Type: Ventilated disc brakes on all four wheels
Calipers: Lightweight aluminum racing calipers
Wheels and Tires
Wheels: Magnesium alloy racing wheels
Tires: Racing slicks, size and compound varied by race
Other Information
Fuel Capacity: Approximately 300 liters
Famous Liveries: Gulf Oil, Salzburg Racing, Martini Racing
Significance: First Porsche to win the 24 Hours of Le Mans overall, foundational car in endurance racing history
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