The Porsche 944 2.5 S, produced between 1987 and 1989, represented a significant step forward in the 944 model line. Positioned as a mid-range performance variant, it bridged the gap between the base 944 and the more potent 944 Turbo. Built on the 944 platform (internally designated as the Type 951), the 2.5 S offered a compelling blend of handling, performance, and relative affordability within the Porsche lineup. It was primarily aimed at enthusiasts seeking a more engaging driving experience than the standard 944, without the higher price tag and complexity of the Turbo model. This variant was sold primarily in Europe and North America, becoming a popular choice for those wanting a true sports car experience.
Technical Specifications
| Brand | Porsche |
| Model | 944 |
| Generation | 944 |
| Type (Engine) | 2.5 S (190 Hp) |
| Start of production | 1987 |
| End of production | 1989 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (economy) – urban | 11.8 l/100 km (19.9 US mpg) |
| Fuel consumption (economy) – extra urban | 8.4 l/100 km (28 US mpg) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 60 mph | 7.7 sec |
| Maximum speed | 228 km/h (141.67 mph) |
| Weight-to-power ratio | 6.8 kg/Hp, 146.2 Hp/tonne |
| Weight-to-torque ratio | 5.7 kg/Nm, 176.9 Nm/tonne |
| Power | 190 Hp @ 6000 rpm |
| Power per litre | 76.6 Hp/l |
| Torque | 230 Nm @ 4300 rpm (169.64 lb.-ft. @ 4300 rpm) |
| Maximum engine speed | 6800 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M44.40 |
| Engine displacement | 2479 cm3 (151.28 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 100 mm (3.94 in.) |
| Piston Stroke | 78.9 mm (3.11 in.) |
| Compression ratio | 10.9:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Engine oil capacity | 6 l (6.34 US qt | 5.28 UK qt) |
| Coolant | 7.8 l (8.24 US qt | 6.86 UK qt) |
| Kerb Weight | 1300 kg (2866.01 lbs.) |
| Max. weight | 1600 kg (3527.4 lbs.) |
| Max load | 300 kg (661.39 lbs.) |
| Fuel tank capacity | 80 l (21.13 US gal | 17.6 UK gal) |
| Length | 4290 mm (168.9 in.) |
| Width | 1735 mm (68.31 in.) |
| Height | 1275 mm (50.2 in.) |
| Wheelbase | 2400 mm (94.49 in.) |
| Front track | 1477 mm (58.15 in.) |
| Rear (Back) track | 1451 mm (57.13 in.) |
| Ride height (ground clearance) | 120 mm (4.72 in.) |
| Drag coefficient (Cd) | 0.35 |
| Minimum turning circle (turning diameter) | 10.3 m (33.79 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 5 gears, manual transmission |
| Front suspension | Independent coil spring |
| Rear suspension | independent torsion suspension |
| Front brakes | Disc |
| Rear brakes | Disc |
| Steering type | Steering rack and pinion |
| Tires size | 215/60 R15 |
| Wheel rims size | 7J x 15 |
Powertrain & Engine Architecture
The heart of the 944 2.5 S is the M44.40, a 2.5-liter inline four-cylinder engine. This engine was a significant upgrade over the earlier 2.4-liter units found in the base 944. It featured a larger bore and stroke, along with improved cylinder heads and intake manifolding. The engine utilized Bosch Motronic fuel injection, a sophisticated system for its time, which optimized fuel delivery and ignition timing for improved performance and efficiency. The M44.40 boasts two valves per cylinder, operated by a single overhead camshaft. The engine’s longitudinal front-engine layout, coupled with rear-wheel drive, contributed to the car’s balanced handling characteristics. The 944 2.5 S exclusively came with a five-speed manual transmission, providing drivers with precise control over the engine’s power band. This transmission was known for its robust construction and smooth shifting action.
Driving Characteristics
The 944 2.5 S offered a noticeably more spirited driving experience compared to the standard 944. The increased displacement and refined engine management system resulted in a more responsive throttle and stronger acceleration. While not as brutally fast as the 944 Turbo, the 2.5 S provided ample power for both spirited road driving and occasional track use. The five-speed manual transmission allowed drivers to keep the engine in its optimal power range, maximizing performance. The car’s well-tuned suspension, featuring independent coil springs at the front and a torsion beam rear suspension, provided excellent handling and stability. The steering was precise and communicative, offering a direct connection between the driver and the road. The 2.5 S felt balanced and predictable, inspiring confidence in corners.
Equipment & Trim Levels
The 944 2.5 S was generally well-equipped for its time. Standard features included power windows, central locking, and a basic stereo system. The interior typically featured cloth upholstery, although leather options were available. The dashboard layout was functional and driver-focused, with clearly marked gauges and easy-to-reach controls. Optional extras included a sunroof, upgraded stereo systems, sport seats, and limited-slip differential. The 2.5 S often featured a more refined interior trim compared to the base 944, with higher-quality materials and improved detailing.
Chassis & Braking
The 944 2.5 S utilized a robust chassis with a galvanized steel body shell, providing good structural rigidity and corrosion resistance. The suspension system was designed to provide a balance between comfort and handling. The front suspension featured independent coil springs, while the rear suspension employed a torsion beam setup. The braking system consisted of ventilated disc brakes on all four wheels, providing ample stopping power. The car’s relatively low weight and balanced weight distribution further enhanced its handling and braking performance.
Market Reception & Comparison
The 944 2.5 S was generally well-received by automotive critics. It was praised for its engaging driving dynamics, refined engine, and relatively affordable price. Compared to the base 944, the 2.5 S offered a significant performance upgrade. It also provided a more accessible entry point into Porsche ownership than the more expensive 944 Turbo. Fuel economy was reasonable for a sports car of its era, averaging around 28 mpg on the highway. Reliability was generally good, although maintenance costs could be higher than those of more mainstream vehicles. Compared to contemporary rivals like the BMW 325i and Mazda RX-7, the 944 2.5 S offered a unique blend of performance, handling, and practicality.
Legacy
The Porsche 944 2.5 S remains a popular choice among Porsche enthusiasts today. Its combination of classic styling, engaging driving dynamics, and relative affordability has made it a sought-after classic. The M44.40 engine is known for its durability, although regular maintenance is essential to keep it running smoothly. Parts availability is generally good, although some components can be expensive. The 944 2.5 S represents a sweet spot in the 944 lineup, offering a compelling blend of performance and usability. It continues to be enjoyed by enthusiasts around the world as a testament to Porsche’s engineering prowess.
