Vehicle Class:
Luxury Sports Car / Supercar
Segment:
High-performance coupe
Key Competitors Era:
Ferrari 308 GTB/GTS, Lamborghini Urraco, Lotus Esprit, Chevrolet Corvette C3 ZR-1
Performance Focus:
Uncompromising power and acceleration due to turbocharging
Design Philosophy:
Iconic Porsche 'whale tail' spoiler, distinctive wide body
Technical Innovation:
Early adopter of turbocharging for production sports cars
Model Years Covered:
1976-1984
Engine Variants Covered:
3.0L (1975-1977), 3.3L (1978-1989 - note: manual coverage specifically targets 1976-1984, encompassing early 3.3L variants)
Market Regions:
Global (European, North American specifications predominantly)
Type:
Factory Workshop Service Repair Manual
Powertrain:
Engine, Engine Lubrication, Cooling System, Fuel System, Exhaust System, Emission Control, Ignition/Starter System, Clutch, Torque Converter, Manual Transmission, Differentials
Chassis:
Suspension (Front & Rear), Wheel & Tire, Brake System, Steering
Body Electrical:
Body & Accessories, Heater & Ventilation, Air Conditioner, Electronics, Wiring Diagrams
Maintenance:
Scheduled maintenance, fluid changes, filter replacements, inspections
Repair Overhaul:
Engine overhaul, transmission rebuild, brake system repair, suspension component replacement, electrical system troubleshooting
Diagnostics:
Troubleshooting guides, fault diagnosis, component testing
Specifications Data:
Torque specifications, clearances, fluid capacities, electrical data
Depth:
Comprehensive factory-level detail, suitable for professional technicians and advanced enthusiasts
Configuration:
Naturally Aspirated Flat-Six (Pre-Turbo) / Turbocharged Flat-Six
Displacement 3 0L:
2994 cc (2.99 Liters)
Displacement 3 3L:
3299 cc (3.3 Liters)
Horsepower Approx 3 0L:
260 PS (191 kW; 256 hp) at 5500 rpm (European spec)
Torque Approx 3 0L:
343 Nm (253 lb-ft) at 4000 rpm (European spec)
Horsepower Approx 3 3L:
300 PS (221 kW; 296 hp) at 5500 rpm (European spec)
Torque Approx 3 3L:
412 Nm (304 lb-ft) at 4000 rpm (European spec)
Horsepower Us Spec 3 0L:
231 hp (172 kW) at 5500 rpm (Federal Spec)
Torque Us Spec 3 0L:
279 lb-ft (378 Nm) at 4000 rpm (Federal Spec)
Horsepower Us Spec 3 3L:
282 hp (207 kW) at 5500 rpm (Federal Spec)
Torque Us Spec 3 3L:
289 lb-ft (392 Nm) at 4000 rpm (Federal Spec)
Injection System:
Bosch K-Jetronic (CIS - Continuous Injection System)
Fuel Type:
Premium Unleaded Gasoline
Type:
Air-cooled with Oil Cooler
Type:
Distributorless (twin ignition system on later models)
Type:
4-Speed Manual (early 3.0L), 4-Speed Manual (early 3.3L), 5-Speed Manual (later 3.3L)
Type:
None (Manual transmission was standard for the 930 Turbo)
Gearbox Codes:
G50/50 (5-speed, later models); 930/xx (4-speed variants)
Manual Transmission Fluid Type:
SAE 90 Hypoid Gear Oil (API GL-4 or GL-5)
Approximate Length:
4231 mm (166.6 inches)
Approximate Width:
1775 mm (69.9 inches)
Approximate Height:
1310 mm (51.6 inches)
Wheelbase:
2271 mm (89.4 inches)
Curb Weight Approx:
1210-1300 kg (2668-2866 lbs) depending on spec and year
Gross Vehicle Weight Rating Approx:
1770 kg (3902 lbs)
Front Wheel Size:
7J x 16 (e.g., 7Jx16 ET23.3)
Rear Wheel Size:
8J x 16 (e.g., 8Jx16 ET10.6)
Front Tire Size:
205/55 VR 16
Rear Tire Size:
225/50 VR 16
Crash Test Era Standard:
N/A (Modern crash testing standards were not prevalent for vehicles of this era)
Braking System:
Four-wheel disc brakes (ventilated front and rear), dual-circuit hydraulic system
Anti Lock Brakes:
Not standard on early models, optional on later variants
Seat Belts:
Three-point inertia reel seatbelts (front)
Steering Column:
Collapsible steering column
Fuel Tank Placement:
Front section of the vehicle, offering some protection
Audio System:
Optional Blaupunkt or Becker radio cassette players; basic analog tuning
Instrumentation:
Classic Porsche analog gauges: speedometer, tachometer, oil pressure, oil temperature, fuel level, boost pressure gauge.
Features:
None by modern standards; driver-focused experience emphasizing mechanical feedback.
Service Intervals Engine Oil
Interval Miles:
5,000 - 7,500 miles or 1 year
Interval Km:
8,000 - 12,000 km or 1 year
Service Intervals Major Service
Interval Miles:
15,000 - 30,000 miles depending on service scope
Engine Oil Type Viscosity:
SAE 20W-50 or SAE 15W-50 (mineral or synthetic, air-cooled specific)
Engine Oil Capacity 3 0L:
Approx. 9.5 Liters (with filter change)
Engine Oil Capacity 3 3L:
Approx. 10.5 Liters (with filter change)
Coolant Type:
N/A (Air-cooled, but oil cooler circuit requires specific oil)
Engine Reliability:
Potential for thermal stress, oil leaks, and turbocharger wear if not maintained diligently. Early models can have weak valve guides.
Fuel System:
K-Jetronic system requires precise adjustment and can be sensitive to fuel quality and vacuum leaks.
Transmission:
Synchros can wear, especially on earlier 4-speed transmissions. Clutch slave cylinder seals can fail.
Body Rust:
Susceptible to rust in common 911 areas: wheel arches, sills, jacking points, fuel tank area.
Oil Filter Oem Equivalent:
Mahle OC 21 (or equivalent with correct thread and bypass valve pressure)
Specification:
Bosch W7DC or equivalent (gap typically 0.8mm)
Manufacturer:
Dr. Ing. h.c. F. Porsche AG
Motorsport Influence:
Derived from the 911 Carrera RS 3.0 and extensively campaigned in motorsport
Engine Upgrade Year:
1977 (introduction of 3.3L engine)
Design Changes:
Introduction of larger intercooler and revised turbocharging system for 3.3L; updated suspension and braking components over its lifespan
Production Period:
1975–1989
Assembly Location:
Stuttgart, Germany
Total Units Produced:
Over 20,000 units (across all variants and years)
