1974-1976 Porsche 911 Targa (G) 2.7 S (175 Hp)

The Porsche 911 Targa (G) 2.7 S, produced between 1974 and 1976, represents a pivotal point in the evolution of the iconic 911. Falling within the ‘G’ series (1974-1977), this variant offered a compelling blend of performance and open-air driving enjoyment. It was positioned as a premium offering within the Targa lineup, sitting above the standard 2.7-liter Targa and serving as a more accessible alternative to the fully enclosed 911 Coupe. The 2.7 S Targa aimed to deliver a more engaging driving experience than its base counterparts, appealing to enthusiasts who desired a sportier character without sacrificing the unique Targa top design.

Technical Specifications

Brand Porsche
Model 911
Generation 911 Targa (G)
Type (Engine) 2.7 S (175 Hp)
Start of production 1974
End of production 1976
Powertrain Architecture Internal Combustion engine
Body type Targa
Seats 4
Doors 2
Fuel Type Petrol (Gasoline)
Maximum speed 225 km/h (139.81 mph)
Weight-to-power ratio 6.1 kg/Hp, 163.6 Hp/tonne
Weight-to-torque ratio 4.6 kg/Nm, 219.6 Nm/tonne
Power 175 Hp @ 5800 rpm
Power per litre 65.1 Hp/l
Torque 235 Nm @ 4000 rpm (173.33 lb.-ft. @ 4000 rpm)
Engine layout Rear, Longitudinal
Engine Model/Code 911.93
Engine displacement 2687 cm3 (163.97 cu. in.)
Number of cylinders 6
Engine configuration Boxer
Cylinder Bore 90 mm (3.54 in.)
Piston Stroke 70.4 mm (2.77 in.)
Number of valves per cylinder 2
Fuel injection system Multi-port manifold injection
Engine aspiration Naturally aspirated engine
Valvetrain SOHC
Kerb Weight 1070 kg (2358.95 lbs.)
Max. weight 1400 kg (3086.47 lbs.)
Max load 330 kg (727.53 lbs.)
Permitted trailer load with brakes (12%) 800 kg (1763.7 lbs.)
Permitted trailer load without brakes 480 kg (1058.22 lbs.)
Length 4291 mm (168.94 in.)
Width 1610 mm (63.39 in.)
Height 1320 mm (51.97 in.)
Wheelbase 2271 mm (89.41 in.)
Front overhang 932 mm (36.69 in.)
Rear overhang 1088 mm (42.83 in.)
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 Spring Strut, Wishbone
Rear suspension Trailing arm
Front brakes Disc
Rear brakes Disc
Steering type Steering rack and pinion
Tires size 185/70 R15
Wheel rims size 6J x15; 7J x 15

Powertrain & Engine Architecture

The heart of the 911 Targa 2.7 S is its 2.7-liter, naturally aspirated, air-cooled flat-six engine, designated as the 911.93. This engine benefited from significant revisions over the earlier 2.4-liter units, including a larger displacement and improved cylinder heads. The ‘S’ designation indicated a higher state of tune, featuring a higher compression ratio (8.5:1) and a more aggressive camshaft profile. Bosch mechanical fuel injection delivered fuel to the engine, a system known for its responsiveness and, when properly maintained, reliability. The engine produced 175 horsepower at 5800 rpm and 235 Nm (173.33 lb-ft) of torque at 4000 rpm. The engine’s boxer configuration, with horizontally opposed cylinders, contributed to a low center of gravity, enhancing handling. The 2.7 S was exclusively offered with a five-speed manual transmission, providing precise gear changes and allowing the driver to fully exploit the engine’s power band.

Driving Characteristics

The 911 Targa 2.7 S delivered a distinctly sporty driving experience. The 2.7-liter engine, while not the most powerful 911 variant, offered a broad and usable powerband. Acceleration was brisk, with a 0-60 mph time estimated around 7.0 seconds, and a top speed of 139.81 mph. The five-speed manual transmission allowed for precise control, and the rear-wheel-drive layout provided a classic Porsche feel. The Targa top, while adding some weight compared to the coupe, offered an open-air driving experience without sacrificing structural rigidity. The suspension, featuring torsion bars and shock absorbers, provided a firm but compliant ride, balancing comfort and handling. Compared to the standard 2.7 Targa, the 2.7 S felt noticeably more responsive and eager to rev, making it a more engaging car for spirited driving.

Equipment & Trim Levels

The 911 Targa 2.7 S came reasonably well-equipped for its time, though options were plentiful. Standard features included leatherette upholstery, a leather-wrapped steering wheel, and a basic sound system. The Targa top itself was a defining feature, consisting of a removable roof panel that stowed in a rear compartment and a fixed roll bar. Optional extras included upgraded sound systems, power windows, air conditioning, and various trim options. Interior color choices were diverse, allowing buyers to personalize their cars. The dashboard layout was typical of early 911s, with a five-gauge instrument cluster providing essential information.

Chassis & Braking

The 911 Targa 2.7 S utilized a robust chassis construction, featuring a monocoque steel body. The suspension system consisted of torsion bars at the front and rear, with shock absorbers and anti-roll bars to control body roll. The braking system featured disc brakes on all four wheels, providing ample stopping power. Steering was via a rack-and-pinion system, offering precise and responsive control. The car rode on 6J x 15 or 7J x 15 inch wheels, shod with 185/70 R15 tires. The suspension setup was tuned to provide a balance between comfort and handling, making the car enjoyable to drive on both smooth roads and winding backroads.

Market Reception & Comparison

The 911 Targa 2.7 S was well-received by automotive critics and enthusiasts alike. It was praised for its performance, handling, and unique Targa top design. Compared to the standard 2.7 Targa, the ‘S’ model offered a significant performance upgrade, making it a more desirable option for those seeking a sportier driving experience. It also provided a more affordable alternative to the 911 Carrera Coupe. Fuel economy was reasonable for a sports car of its era, averaging around 18-22 mpg. Reliability was generally good, although the air-cooled engine required regular maintenance to prevent issues.

Legacy

The Porsche 911 Targa 2.7 S remains a highly sought-after classic Porsche today. Its combination of performance, style, and open-air driving enjoyment has made it a favorite among collectors and enthusiasts. The 2.7-liter engine is considered a robust and reliable unit when properly maintained, although parts availability can be a challenge. Values for well-preserved examples have steadily increased in recent years, reflecting the car’s enduring appeal and historical significance. The 911 Targa 2.7 S represents a sweet spot in the 911 lineage, offering a classic Porsche experience with a touch of open-air freedom.

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