Model:
308 GTB/GTS QV, 328 GTB/GTS
Model Codes:
308 GTB QV (F106 CB), 308 GTS QV (F106 DB), 328 GTB (F106 BB), 328 GTS (F106 CB)
Generation Name:
Third Generation (308 QV to 328)
Generation Years:
1982-1989
Applicable Years:
1985, 1986, 1987, 1988, 1989
Vehicle Segment:
Mid-engined, rear-wheel-drive sports car.
Brand Perception:
Iconic Italian supercar, known for performance, styling, and V8 soundtrack.
Primary Competitors:
Porsche 911, Lotus Esprit, Chevrolet Corvette (C3/C4), Lamborghini Jalpa.
Engine Layout:
Mid-mounted V8.
Design Philosophy:
Classic Ferrari Pininfarina styling, focus on driver engagement and performance.
Cost Saving:
Enables owners to perform DIY repairs and maintenance, saving significantly on labor costs.
Ease Of Use:
Step-by-step instructions, visuals, and diagrams facilitate repair tasks.
Engine:
Detailed engine overhaul, lubrication, cooling, fuel injection (Bosch K-Jetronic/KE-Jetronic), ignition system, emissions control, engine management.
Transmission:
Manual transmission overhaul, clutch assembly, gearbox servicing, lubrication, driveshafts.
Brakes:
Hydraulic brake system, disc brake overhaul (front and rear), parking brake, ABS (Anti-lock Braking System) for applicable models, brake fluid specifications.
Suspension Steering:
Front and rear suspension geometry, shock absorbers, springs, bushings, power steering system, steering rack and pinion.
Electrical:
Complete wiring diagrams for all systems, starter motor, alternator, battery, lighting systems, dashboard instruments, horn, wipers, power windows, central locking.
Bodywork Chassis:
Body panel removal and installation, door mechanisms, window regulators, interior trim, chassis lubrication points, structural components.
Heating Ventilation Ac:
HVAC system operation, refrigerant handling, component replacement, airflow control.
Maintenance:
Routine service intervals, oil and filter changes, spark plug replacement, coolant checks, belt adjustments, brake fluid flush.
Troubleshooting:
Diagnostic procedures for common and complex issues, fault finding guides, symptom-based troubleshooting.
Repair Rebuild:
Complete step-by-step instructions for component removal, disassembly, inspection, repair, assembly, and reinstallation.
Diagnostics:
Engine performance diagnostics, electrical system troubleshooting using wiring diagrams, fuel system pressure testing.
Depth Of Coverage:
Comprehensive, from basic maintenance to complete engine and transmission rebuilds, including electrical system schematics and diagnostic procedures.
Engine Displacement 308Qv:
2926 cc (2.9 Liters).
Engine Displacement 328:
3186 cc (3.2 Liters).
Bore Stroke 308Qv:
82 mm x 71 mm.
Bore Stroke 328:
83 mm x 73.6 mm.
Compression Ratio 308Qv:
9.2:1.
Compression Ratio 328:
9.6:1 (Euro), 9.2:1 (US).
Horsepower 308Qv:
230-240 bhp (DIN/SAE).
Horsepower 328:
270 bhp (266 net) @ 7000 rpm (Euro), 260 bhp (255 net) @ 7000 rpm (US).
Torque 328:
229 lb-ft (311 Nm) @ 5500 rpm (Euro), 215 lb-ft (291 Nm) @ 5500 rpm (US).
Fuel System:
Bosch K-Jetronic mechanical fuel injection (308 QV), Bosch KE-Jetronic (328).
Ignition System:
Distributorless ignition (246 GT4), Twin-plug ignition with distributors (308 QV), Electronic ignition with distributors (328).
Engine Cooling:
Water-cooled.
Wheelbase:
2340 mm (92.1 in).
Length:
4250 mm (167.3 in) for 308 QV; 4365 mm (171.9 in) for 328.
Width:
1720 mm (67.7 in) for 308 QV; 1700 mm (66.9 in) for 328.
Height:
1135 mm (44.7 in) for 308 QV; 1130 mm (44.5 in) for 328.
Curb Weight Approx:
1450 kg (3197 lbs) for 308 QV; 1400-1450 kg (3086-3197 lbs) for 328.
Weight Distribution Approx:
Near 50/50 front/rear.
Front Tire Size Typical:
205/55 VR 16.
Rear Tire Size Typical:
225/50 VR 16.
Wheel Bolt Pattern:
5x108 mm.
Wheel Size:
16 inch alloy.
Crash Test Ratings:
No formal crash test ratings available from modern agencies for this era of vehicle.
ABS:
Optional on some later models, standard on some 328 variants.
Brakes:
Four-wheel disc brakes.
Seatbelts:
Three-point inertia-reel seatbelts.
Chassis Structure:
Tubular steel chassis with body panels bolted on.
Oil Change Interval:
Every 7,500 km (4,500 miles) or 1 year, whichever comes first.
Major Service Interval:
Timing belt replacement every 30,000-45,000 km (18,000-28,000 miles) or 3-5 years.
Engine Oil Capacity:
Approximately 11.0 - 12.0 Liters (2.9 - 3.2 US Quarts).
Engine Oil Type:
API SG/SH rated, SAE 20W-50 or 15W-50 synthetic oil (verify with manual for specific Ferrari approval).
Coolant Type:
Ethylene glycol-based antifreeze/coolant with corrosion inhibitors. 50/50 mix with distilled water.
Brake Fluid Type:
DOT 3 or DOT 4 high-performance brake fluid.
Timing Belts:
Critical component; failure leads to catastrophic engine damage. Regular replacement is paramount.
Fuel Lines:
Aging rubber fuel lines can degrade and cause leaks; replacement with modern, ethanol-resistant lines is recommended.
Ignition Coils And Wires:
Degradation can lead to misfires and poor performance.
Carburetor Or Injection System:
K-Jetronic/KE-Jetronic systems require precise tuning and can be sensitive to wear.
Suspension Bushings:
Wear can affect handling and ride quality.
Founding Location:
Maranello, Italy.
Predecessor:
Ferrari 308 GTB/GTS.
308 Qv Introduction:
1982, featuring Quattrovalvole (four-valve per cylinder) heads for improved performance.
328 Introduction:
1985, an evolution of the 308 QV with enlarged engine, updated styling, and improved handling.
Successor:
Ferrari F40 (performance), Ferrari 348 TB/TS (direct lineage).
Production Period:
308 QV: 1982-1985; 328: 1985-1989.
Production Numbers Approx:
308 QV: ~1,500 units; 328: ~6,000 units.
