🏷️ Basic Information Identification Make: Porsche Model: 911 Carrera Turbo Model Variant: 930 Turbo (or 'Turbo Carrera') Year Range: 1978-1981 👋 Introduction Market Position Positioning: The ultimate performance variant of the iconic Porsche 911, targeting enthusiasts and collectors seeking the pinnacle of air-cooled 911 engineering. Competitive Analysis Competitors: Ferrari 308 GTB/GTS, Lamborghini Urraco, Chevrolet Corvette C3 (Z07/ZR1 variants for performance). Key Features Performance Focus: Turbocharging technology for significant power increase, advanced aerodynamics for stability. Handling: Legendary 911 handling characteristics enhanced by wider tires and stiffer suspension. Exclusivity: Limited production numbers, highly desirable classic sports car. 📋 Manual Details Coverage Areas Manual Type: Technical Specifications and Repair Manual Language: English Format: Digital Download (PDF) 📖 Manual Coverage Systems Covered Engine: 3.0L & 3.3L Turbocharged Flat-Six (930 engine family) Fuel System: Bosch K-Jetronic fuel injection, turbocharger system, intercooler Transmission: 4-speed and 5-speed manual transaxle (G50 not applicable for this range) Brakes: Hydraulic disc brakes (front and rear), braking system components Suspension: Torsion bar front suspension, trailing arm rear suspension, shock absorbers, anti-roll bars Steering: Rack and pinion steering system Electrical System: Ignition system, charging system (alternator), starting system (starter), lighting, instrumentation, wiring diagrams Body And Chassis: Body panels, structural components, aerodynamics, interior trim, glass Procedures Included Maintenance: Scheduled maintenance intervals, fluid changes, filter replacements, lubrication points Troubleshooting: Diagnostic procedures for common faults, electrical system diagnostics, engine performance issues Repair: Engine overhaul, transmission repair, brake system rebuild, suspension component replacement, electrical component repair Adjustments: Valve adjustments, ignition timing, fuel system adjustments, suspension alignment Torque Specifications: Detailed torque values for all critical fasteners Technical Depth Depth: Comprehensive, from routine maintenance to full engine and transmission rebuilds Diagnostics: Advanced diagnostic procedures, including specific tests for K-Jetronic and turbocharging systems Wiring Diagrams: Detailed, color-coded electrical system wiring diagrams 📊 Manual Specifications File Format File Type: PDF Searchable Text: Yes Printable: Yes (individual pages or full document) Page Count: Estimated 500-800 pages (typical for workshop manuals of this era and scope) Print Quality: High-resolution scans of original factory documentation Binding Type: N/A (Digital Download) Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Type: Air-cooled, horizontally opposed (flat) six-cylinder Displacement 3.0: 2994 cc (182.7 cu in) Displacement 3.3: 3291 cc (200.8 cu in) Bore X Stroke 3.0: 95.0 mm x 70.4 mm Bore X Stroke 3.3: 98.0 mm x 70.4 mm Performance Horsepower 3.0: 260 PS (191 kW; 256 hp) at 5500 rpm Horsepower 3.3: 300 PS (221 kW; 296 hp) at 5500 rpm (U.S. spec: 273 hp due to emissions) Torque 3.0: 343 Nm (253 lb-ft) at 4000 rpm Torque 3.3: 412 Nm (304 lb-ft) at 4000 rpm (U.S. spec: 343 lb-ft) Fuel System Injection System: Bosch K-Jetronic (CIS - Continuous Injection System) Turbocharger: Single turbocharger (e.g., KKK K27 for later models) Intercooler: Air-to-air intercooler (standard on 3.3L models) Compression Ratio 3.0: 7.0:1 Compression Ratio 3.3: 7.5:1 Fuel Type: Premium Unleaded Gasoline 🔧 Transmission Standard Type: Manual Transaxle Gears: 4-speed (early 1976-1977 930 models) / 4-speed (1978-1981 models) / 5-speed available on some export models and later 930s, but 4-speed is most common for this specific range provided. Optional Type: Not applicable (primarily manual only for this generation) Features Clutch: Single dry plate clutch Gear Ratios: Specific ratios detailed in the manual (vary by model year and gearbox type) Final Drive: Limited-slip differential (often optional or standard on Turbo) 📐 Dimensions Exterior Length: Approx. 4215 mm (165.9 in) Width: Approx. 1720 mm (67.7 in) Height: Approx. 1310 mm (51.6 in) Wheelbase: Approx. 2270 mm (89.4 in) Weights Curb Weight: Approx. 1140-1210 kg (2513-2668 lb) Gross Vehicle Weight Rating: Varies by model, consult manual 🛡️ Safety Features Ratings Crash Testing: NHTSA/Euro NCAP data from this era is limited; focus on passive safety features designed by Porsche. Active Features Brakes: Power-assisted disc brakes with larger rotors and improved cooling for Turbo models. Suspension Tuning: Stiffer springs and dampers, larger anti-roll bars for improved stability and handling. Passive Features Chassis Construction: Reinforced unibody construction, crumple zones. Seat Belts: Three-point seat belts. Steering Column: Collapsible steering column. 💡 Technology Features Infotainment Audio System: Factory AM/FM radio with cassette player (optional, often replaced with aftermarket units). Driver Assistance ABS: Anti-lock Braking System (ABS) became available on later models within this range, though not standard on all. Cruise Control: Optional cruise control system on some models. Connectivity Early Features: Limited connectivity by modern standards; focus on analog gauges and mechanical controls. 🔧 Maintenance Service Intervals Oil Change: Every 5,000-10,000 km (3,000-6,000 miles) or annually, depending on usage. Oil filter change with every oil change. Major Service: Every 20,000-30,000 km (12,000-18,000 miles) for tune-ups, inspections, and component checks. Valve Adjustment: Recommended at major service intervals or as per manual (periodic checks are crucial). Fluid Specifications Engine Oil: High-quality synthetic or semi-synthetic oil meeting Porsche's specifications (e.g., SAE 20W-50 or 15W-50, specific API...