🏷️ Basic Information Identification Make: Porsche Model: 944 Turbo Model Designation: 951 (Internal Chassis Code) Production Years Covered: 1987, 1988, 1989, 1990, 1991 Codes Chassis Code: 944 S2 chassis update with Turbo modifications 👋 Introduction Market Position Positioning: The Porsche 944 Turbo (951) was positioned as a high-performance grand tourer and sports car, bridging the gap between the standard 944 and the 911. Competitive Analysis Competitors: Competed against vehicles like the Chevrolet Corvette, Nissan 300ZX Turbo, Toyota Supra Turbo, and BMW M3 (E30). Key Features Aerodynamics: Distinctive front air dam and rear spoiler optimized for high-speed stability and reduced drag. Handling: Transaxle design (engine front, gearbox rear) for near 50/50 weight distribution, contributing to exceptional balance and handling. Performance Enhancements: Turbocharged engine, intercooler, and advanced DME system provided significant power and torque. 📋 Manual Details Coverage Areas Primary Coverage: Comprehensive service and repair for Porsche 944 Turbo (951) models Secondary Coverage: Routine maintenance, troubleshooting, diagnostics, and detailed repair procedures Page Count Estimated Pages: Very High (typical for Porsche WSMs, often exceeding 1000 pages when compiled) Manual Type Type: Workshop Service Manual (WSM) / Repair Manual Language Language: English Format Digital Format: PDF 📖 Manual Coverage Systems Covered Powertrain: Engine (2.5L Turbo), DME (Digital Motor Electronics), Fuel Injection, Ignition, Exhaust, Cooling, Lubrication Drivetrain: Transmission (Manual Gearbox), Clutch, Driveshafts, Differential Suspension Steering: Front and Rear Suspension, Steering System (Power Steering) Brakes: Brake System (ABS), Disc Brakes (Front and Rear), Hydraulic System Electrical: Full Electrical System, Wiring Diagrams, Battery, Alternator, Starter, Lighting, Instrumentation, DME Control Unit Body Chassis: Body Structure, Body Panels, Doors, Hood, Trunk, Interior Trim, Body Sealing HVAC: Heating, Ventilation, and Air Conditioning (HVAC) System Procedures Included Maintenance: Oil changes, filter replacements, spark plug service, belt inspections and replacements, brake fluid flush Repair: Engine overhaul, transmission rebuild, suspension component replacement, brake caliper service, electrical component diagnosis and repair Troubleshooting: System-specific diagnostic trees, common fault finding, error code interpretation (where applicable) Diagnostics: DME diagnostics, sensor testing, actuator testing Technical Depth Depth: Comprehensive, from basic adjustments and fluid changes to complete engine and transmission rebuilds, including advanced electrical diagnostics. 📊 Manual Specifications File Format Format Details: PDF (Portable Document Format) Print Quality Printability: Full Printable (pages can be printed individually or in sections) Binding Type Binding: N/A (Digital Download - printable pages) Paper Type Paper Quality: N/A (Digital Download - printable on user's choice of paper) Requirements Software: Adobe PDF Reader or compatible PDF viewer Compatibility: All Versions of Windows & Mac operating systems Delivery Delivery Method: Instant Download ⚙️ Engine Specifications Primary Engine Engine Type: Inline 4-cylinder, turbocharged, intercooled Engine Code: M44.50 (or similar, specific to model year and market) Displacement: 2.5 Liters (2479 cc) Performance Horsepower: Approximately 217 hp (162 kW) at 6000 rpm (varies slightly by year and market) Torque: Approximately 245 lb-ft (332 Nm) at 4500 rpm (varies slightly by year and market) Fuel System Fuel Delivery: Bosch LE-Jetronic fuel injection with Motronic (DME) engine management. Fuel Type: Unleaded Premium Gasoline (91 octane or higher recommended) Cooling Cooling System: Pressurized liquid cooling system with thermostatically controlled fan. 🔧 Transmission Standard Transmission Type: 5-speed manual transaxle (G50 variant for later models, otherwise internal Porsche design) Optional Optional Transmission: None (Only manual transmission offered for the 944 Turbo) Features Clutch: Hydraulically operated single-plate dry clutch. Fluid Specifications Gearbox Oil Type: Hypoid gear oil, API GL-4 or GL-5, SAE 75W-90 (refer to manual for exact PN and specification) 📐 Dimensions Exterior Length: Approximately 4200 mm (165.4 in) Width: Approximately 1735 mm (68.3 in) Height: Approximately 1270 mm (50.0 in) Wheelbase: Approximately 2400 mm (94.5 in) Weights Curb Weight: Approximately 1350 kg (2976 lbs) Gross Vehicle Weight Rating: Refer to specific model year documentation 🛡️ Safety Features Ratings Crash Testing: Porsche's rigorous internal safety standards of the era; no specific NHTSA ratings readily available for this model in many markets. Active Features ABS: Anti-lock Braking System (ABS) standard on most 944 Turbo models. Passive Features Airbags: Driver's side airbag standard from later model years (e.g., 1987 onwards). Seatbelts: Three-point inertia-reel seatbelts front and rear. Roll Over Protection: Reinforced A-pillars and integral roll-over structure. 💡 Technology Features Infotainment Audio System: Factory fitted stereo systems often from Blaupunkt or Grundig, with tape deck and AM/FM radio. Amplifier upgrades were common. Dashboard Controls: Analogue gauges, climate control knobs, headlight/wiper controls. Driver Assistance ABS: Standard ABS system for enhanced braking control. Connectivity Connectivity Features: Limited by era; primarily analog systems. No modern Bluetooth or USB connectivity unless aftermarket installed. 🔧 Maintenance Service Intervals Oil Change: Typically every 7,500 miles or 12 months, whichever comes first (refer to manual for specific interval and oil type). Timing Belt: Crucial replacement interval, typically every 30,000 miles or 3 years. Failure leads to catastrophic engine damage. This manual will detail the procedure and torque specifications. Spark Plugs: Refer to manual; typically...