Independent parts atlas sources attached
Technical reference · reviewed 2026-09-06
Weights, dimensions and materials: 83 published specifications and 3 construction records, checked against the original documents. Every figure retains its vehicle configuration, unit and source.
Factory documentation · 29 figures
The initial FIA homologation describes a particular configuration. Mass conventions and metric dimensions are retained; these figures do not describe every later 917 K or CanAm car.
| Specification | Value | Source and limits |
|---|---|---|
| Vehicle mass without fuel or tools | 800 kg | Porsche / FIA homologation 250 (1969)PDF p. 5, item 9 Includes standard equipment, oil and the spare wheel; not dry mass. |
| DIN 70020 kerb mass | 896 kg | Porsche / FIA homologation 250 (1969)PDF p. 5, item 9, DIN line A different weighing convention from the 800 kg figure. |
| Front static axle mass | 305 kg | Porsche / FIA homologation 250 (1969)PDF p. 5, item 9, front axle line For the 800 kg weighing state. |
| Rear static axle mass | 495 kg | Porsche / FIA homologation 250 (1969)PDF p. 5, item 9, rear axle line For the 800 kg weighing state. |
| Overall length | 4290 mm | Porsche / FIA homologation 250 (1969)PDF p. 5, item 4 429 cm converted to mm. The printed 188.1-inch equivalent is inconsistent. |
| Overall width | 1880 mm | Porsche / FIA homologation 250 (1969)PDF p. 5, item 5 188 cm converted to mm. |
| Overall height | 920 mm | Porsche / FIA homologation 250 (1969)PDF p. 5, item 6 92 cm converted to mm. |
| Wheelbase | 2300 mm | Porsche / FIA homologation 250 (1969)PDF p. 5, item 1 |
| Front track | 1488 mm | Porsche / FIA homologation 250 (1969)PDF p. 5, item 2 Track depends on the homologated wheel configuration. |
| Rear track | 1457 mm | Porsche / FIA homologation 250 (1969)PDF p. 5, item 3 Track depends on the homologated wheel configuration. |
| Fuel tank, including reserve | 140 L | Porsche / FIA homologation 250 (1969)PDF p. 5, item 7 |
| Seats | 2 | Porsche / FIA homologation 250 (1969)PDF p. 5, item 8 |
| Cylinders | 12 | Porsche / FIA homologation 250 (1969)PDF p. 8, item 131 |
| Bore | 85 mm | Porsche / FIA homologation 250 (1969)PDF p. 8, item 133 |
| Stroke | 66 mm | Porsche / FIA homologation 250 (1969)PDF p. 8, item 134 |
| Declared displacement | 4494.2 cm³ | Porsche / FIA homologation 250 (1969)PDF p. 8, item 136 |
| Compression ratio | 10.5 :1 | Porsche / FIA homologation 250 (1969)PDF p. 8, item 142 |
| Combustion chamber volume | 39.5 cm³±1 cm³ | Porsche / FIA homologation 250 (1969)PDF p. 8, item 143 |
| Rings per piston | 3 | Porsche / FIA homologation 250 (1969)PDF p. 8, item 145 |
| Piston pin centre to crown | 43 mm | Porsche / FIA homologation 250 (1969)PDF p. 8, item 146 Metric entry retained; the printed inch conversion is inconsistent. This is not a complete piston drawing. |
| Crankshaft main bearings | 8 | Porsche / FIA homologation 250 (1969)PDF p. 8, item 149 |
| Circulating oil quantity | 30 L | Porsche / FIA homologation 250 (1969)PDF p. 8, item 152 Dry-sump circulation quantity, not an oil-change instruction. |
| Cooling fan diameter | 330 mm | Porsche / FIA homologation 250 (1969)PDF p. 8, item 156 33 cm converted to mm. |
| Cooling fan blades | 6 | Porsche / FIA homologation 250 (1969)PDF p. 8, item 157 |
| Flywheel mass | 2.2 kg±0.2 kg | Porsche / FIA homologation 250 (1969)PDF p. 8, item 160 |
| Flywheel with clutch mass | 5.35 kg±0.2 kg | Porsche / FIA homologation 250 (1969)PDF p. 8, item 161 |
| Initial assembled crankshaft mass | 23.75 kg±0.2 kg | Porsche / FIA homologation 250 (1969)PDF p. 8, item 162 Initial homologated construction only. |
| Connecting rod mass, each | 0.42 kg±0.02 kg | Porsche / FIA homologation 250 (1969)PDF p. 8, item 163 |
| Piston with pin and rings mass, each | 0.46 kg±0.02 kg | Porsche / FIA homologation 250 (1969)PDF p. 8, item 164 |
Factory documentation · 40 figures
Launch specification from the February 1995 UK brochure. Body dimensions are edition-specific; later driver manuals may give different figures. These are published vehicle specifications, not manufacturing tolerances.
| Specification | Value | Source and limits |
|---|---|---|
| Kerb mass | 1500 kg | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications Brochure kerb-weight figure; not a dry vehicle mass. |
| Maximum vehicle mass | 1840 kg | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Maximum front axle load | 760 kg | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Maximum rear axle load | 1150 kg | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Wheelbase | 2272 mm | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Front track | 1411 mm | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Rear track | 1504 mm | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Turning circle | 11.74 m | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Overall length | 4247 mm | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications Launch brochure: 4,247 mm. Keep separate from later manual dimensions. |
| Overall width | 1792 mm | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications Launch brochure: 1,792 mm. |
| Overall height | 1290 mm | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications Launch brochure: 1,290 mm. |
| Ground clearance | 88 mm | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications Brochure figure; loading condition is not specified on this table. |
| Cylinders | 6 | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Bore | 100 mm | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Stroke | 76.4 mm | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Displacement | 3600 cm³ | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Compression ratio | 8 :1 | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Rated power | 300 kW | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications Manufacturer-published rating at 5,750 rpm; not independently tested. |
| Engine speed at rated power | 5750 rpm | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Maximum torque | 540 N·m | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications Manufacturer-published rating at 4,500 rpm; not independently tested. |
| Engine speed at maximum torque | 4500 rpm | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Alternator current | 115 A | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Alternator power | 1610 W | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Valves per cylinder | 2 | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Clutch diameter | 240 mm | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications With dual-mass flywheel. |
| Forward gears | 6 | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Rear differential lock under traction | 25 % | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Rear differential lock on overrun | 40 % | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Front brake disc diameter | 322 mm | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Front brake disc thickness | 32 mm | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Rear brake disc diameter | 322 mm | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Rear brake disc thickness | 28 mm | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Pistons per brake caliper | 4 | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Front wheel width | 8 in | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Rear wheel width | 10 in | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Wheel diameter | 18 in | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Front wheel offset | 52 mm | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Rear wheel offset | 40 mm | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Front tyre size | 225/40 ZR18 | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
| Rear tyre size | 285/30 ZR18 | Porsche — The Turbo, UK brochure, February 1995PDF p. 22, technical specifications |
Aftermarket conversion · 14 figures
Aftermarket configuration for pistons PP102-012N and LN cylinders 105-102/109. Requires a machined 109 mm cylinder register. These dimensions and alloy apply to this kit, not to the original Porsche piston or cylinder.
| Specification | Value | Source and limits |
|---|---|---|
| Bore | 102 mm | MAHLE Motorsport — Porsche 3.6 L air-cooledPDF p. 1, 993 TURBO 3.6 L to 3.8 L row |
| Cylinder case register | 109 mm | MAHLE Motorsport — Porsche 3.6 L air-cooledPDF p. 1, 993 TURBO 3.6 L to 3.8 L row |
| Cylinder height | 114.5 mm | MAHLE Motorsport — Porsche 3.6 L air-cooledPDF p. 1, 993 TURBO 3.6 L to 3.8 L row |
| Specified crankshaft stroke | 76.4 mm | MAHLE Motorsport — Porsche 3.6 L air-cooledPDF p. 1, 993 TURBO 3.6 L to 3.8 L row |
| Specified connecting rod length | 127 mm | MAHLE Motorsport — Porsche 3.6 L air-cooledPDF p. 1, 993 TURBO 3.6 L to 3.8 L row |
| Piston compression height | 31.8 mm | MAHLE Motorsport — Porsche 3.6 L air-cooledPDF p. 1, 993 TURBO 3.6 L to 3.8 L row |
| Piston pin diameter | 23 mm | MAHLE Motorsport — Porsche 3.6 L air-cooledPDF p. 1, 993 TURBO 3.6 L to 3.8 L row |
| Piston crown volume | 9.6 cm³ | MAHLE Motorsport — Porsche 3.6 L air-cooledPDF p. 1, 993 TURBO 3.6 L to 3.8 L row |
| Listed piston mass | 468 g | MAHLE Motorsport — Porsche 3.6 L air-cooledPDF p. 1, 993 TURBO 3.6 L to 3.8 L row Catalogue value; the sheet does not explicitly define whether pin and rings are included. |
| Published compression ratio | 8 :1 | MAHLE Motorsport — Porsche 3.6 L air-cooledPDF p. 1, 993 TURBO 3.6 L to 3.8 L row MAHLE states a 90 cm³ chamber and calculates air-cooled compression ratios at 1 mm below deck. This is a configuration claim, not a measured result. |
| Piston alloy | 2618 aluminium alloy | MAHLE Motorsport — Porsche 3.6 L air-cooledPDF p. 1, 993 TURBO 3.6 L to 3.8 L row |
| Ring thicknesses | 1.2 / 1.2 / 3.0 mm | MAHLE Motorsport — Porsche 3.6 L air-cooledPDF p. 1, 993 TURBO 3.6 L to 3.8 L row |
| Piston set reference | PP102-012N | MAHLE Motorsport — Porsche 3.6 L air-cooledPDF p. 1, 993 TURBO 3.6 L to 3.8 L row |
| LN cylinder reference | 105-102/109 | MAHLE Motorsport — Porsche 3.6 L air-cooledPDF p. 1, 993 TURBO 3.6 L to 3.8 L row MAHLE directs cylinder purchases through LN distributors; availability has not been checked. |
A material family identifies what the source describes. It does not establish an alloy grade or qualify an alternative manufacturing process.
917-001 restoration
Glass-fibre / polyester laminate · Laminate formed using reconstructed moulds
Porsche describes scanning, surface reconstruction and machined moulds. This is not a claim that the body was 3D printed.
Porsche Museum — restoration of 917-001Restoration and 3D technology sections917-001
Aluminium · Not specified here
Applies to this chassis; do not generalise to magnesium-frame variants.
Porsche Museum — restoration of 917-001Restoration of the 917-001 to its original condition993 Turbo — 1995 UK brochure
Aluminium alloy · Not specified
Exact alloy grade is not published.
Porsche — The Turbo, UK brochure, February 1995PDF p. 22, brakesThe research does not establish a complete dimensioned engine envelope, internal machining drawings or a material certificate for each original part. Proposed titanium replacements and modernised 917 crankcases remain engineering studies. No simulated output, target power or proposed mass saving is presented here as a tested engine result.
For the existing catalogue, see 993 parts and published weights andthe 993 Turbo engine specification.