Specification

Porsche 917 technical specifications giving you those all important stats (like 0-60mph !) you need to know about the major types of 917.

Porsche 917 Langheck
(1969)

Engine : Flat 12 air-cooled
Capacity : 4,494cc
Bore / Stroke : 85mm / 66mm
Compression ratio : 10.5:1
Maximum power : 520bhp @ 8,000rpm
Maximum torque : 451 Nm @ 6,800rpm
Brakes : 12-inch radially venilated discs with drilled aluminium hubs. Dual circuit hydraulic system with adjustable balance. Alfred Teves aluminium four-piston calipers
Wheels : Front – 9" x 15" Read – 12" x 15" cast magnesium alloy wheels with centre nut
Tyres : Dunlop
Dimensons : Length – 4,780mm
Width – 1,880mm
Height – 920mm
Wheelbase : 2,300mm
Track : 1,488mm (front) 1,475mm (rear)
Turning circle : 13m
Unladen weight : 800kg (36.5/63.5 front/rear split)
Fuel tank capacity : 140 Litres<
Fuel Consumption : 45 Litres/100Km (or 6.2 miles per gallon)
Maximum speed : 320kph / 200mph
Acceleration : 0-60 mph : 2.7 seconds 0-100mph : 5.5 secs

Porsche 917K
(1971)

Engine : Flat 12 air-cooled
Capacity : 4,998cc
Bore / Stroke : 86.8mm / 70.4mm
Compression ratio : 10.5:1
Maximum power : 630bhp @ 8,300rpm
Maximum torque : 589 Nm @ 6,400rpm
Brakes : 12-inch cross drilled & vented discs with drilled aluminium hubs.
Girling aluminium four-piston calipers
Wheels : Front – 10.5″ or 12″ x 15″ Rear – 15″ or 17″
x 15″ five-spoke cast alloy wheels with centre nut
Tyres : Firestone
Dimensons : Length – 4,120mm
Width – 2,080mm
Height – 940mm
Wheelbase : 2,300mm
Track : 1,582mm (front) 1,584mm (rear)
Turning circle : 13m
Unladen weight : 800kg (36.5/63.5 front/rear split)
Fuel tank capacity : 120 Litres<
Fuel Consumption : 48 Litres/100Km (or 5.95 miles per gallon)
Maximum speed : tbc
Acceleration : 350kph / 220mph (394kph / 246mph for longtail)
0-100kph : 2.7 seconds

Porsche 917/10
(1973)

Engine : Flat 12 air-cooled
Capacity : 4,998cc and 630bhp
5,374cc and 660bhp
5,598cc and 680bhp (as fitted to the car pictured)
4,494cc Turbocharged with 850bhp
4,998cc Turbocharged with 950bhp
Compression ratio : 6.5:1
Brakes : Heavily finned aluminum calipers, with 28mm internally ventilaated
& cross drilled cast-iron discs
Wheels : Front – 12″ Rear – tbc
Dimensons : Length – 3,950mm
Wheelbase : 2,316mm
Unladen weight : 730Kg non-turbo
785Kg with turbo (1971)
767Kg with turbo & magnesium frame (May ’72)
Maximum speed : 213mph
Cost when new : 5Ltr turbo @ DM 400,000 (or £45,000)
…with a 911s costing £5,400 at the same time (1972)

Porsche 917/30
(1973)

Engine : Flat 12 turbocharged (max boost 1.5 bar)
Capacity : 5,374cc
Bore / Stroke : 90mm / 70.4mm
Compression ratio : 6.5:1
Maximum power : 1,100bhp @ 8,000rpm
Maximum torque : 1,098 Nm @ 6,400rpm
Brakes : Cross drilled and ventilated discs with drilled aluminium hubs.Porsche
aluminium four-piston calipers
Wheels : Front – 12″ x 15″ Rear – 19″ x 15″ cast magnesium
alloy wheels with centre nut and air-extractor cones (hub-caps !)
Tyres : Goodyear
Dimensons : Length – 4,562mm
Width – 2,085mm
Height – 730mm
Wheelbase : 2,500mm
Track : 1,670mm (front) 1,564mm (rear)
Turning circle : 13m
Unladen weight : 845kg (33/67 front/rear split)
Fuel tank capacity : 400 Litres
Fuel Consumption : 85 Litres/100Km (or 3.4 miles per gallon)
Maximum speed : 238mph
Acceleration : 0-60 mph : 2.1 seconds 0-100mph : 3.9 secs 0-200mph : 13.4mph
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