| Manufacturer |
Porsche |
| Price |
- |
| Model |
Super |
| Equipment Type |
Utility Tractors |
| Factory |
Germany |
NEBRASKA TRACTOR TEST 728 2
| Description |
Diesel 8-speed 2WD/November 14 - 21, 1959/Link: Nebraska Tractor Test 728 file/PTO performance/Drawbar performance/Gear 6 used for power test./Gear 3 used for pull test. |
| Power at rated engine speed |
37.21 hp/27.7 kW |
| Fuel use |
2.9 gal/hour/11.0 l/hour |
| Power at rated PTO speed |
33.93 hp/25.3 kW |
| Max power |
32.37 hp/24.1 kW |
| Max pull |
6411 lbs/2908 kg |
PORSCHE SUPER POWER
| Engine |
38 hp/28.3 kW |
| Drawbar (tested) |
32.37 hp/24.1 kW |
| PTO (tested) |
37.21 hp/27.7 kW |
ENGINES OVERVIEW
The Porsche Super tractor is equipped with a choice of two diesel engines: the 2.5L and the 2.6L 3-cylinder variants, providing efficient power and torque for agricultural tasks. Advantages include robust design and reliability, as well as excellent maneuverability due to its lightweight chassis. However, a potential challenge is the availability of spare parts, considering its vintage status, which could impact long-term maintenance and repairs.
| Description |
Porsche 2.5L 3-cyl diesel/Porsche 2.6L 3-cyl diesel |
ENGINE DETAIL 1
The Porsche 308 diesel tractor features a robust 2.5 L air-cooled, 3-cylinder engine with a compression ratio of 19:1, enabling efficient torque delivery at a rated RPM of 2000, making it ideal for heavy-duty tasks. With a power output of 38 hp and an oil bath air cleaner, this tractor provides excellent durability and reduced maintenance in challenging agricultural environments. However, the air-cooled system may pose challenges in extreme temperatures, requiring careful management to prevent overheating during prolonged operation.
| Description |
Porsche 308/diesel/3-cylinder/air-cooled |
| Displacement |
150.6 ci/2.5 L |
| Bore/Stroke |
3.74x4.56 inches/95 x 116 mm |
| Power |
38 hp/28.3 kW |
| Air cleaner |
oil bath |
| Compression |
19:1 |
| Rated RPM |
2000 |
| Starter volts |
12 |
ENGINE DETAIL 2
The Porsche 329 diesel tractor features a compact 3-cylinder, air-cooled engine with a displacement of 2.6 L, delivering 35 hp at a rated 2300 RPM. Its bore-to-stroke ratio allows for efficient torque generation, though air-cooling may limit performance in extreme temperatures. This tractor is ideal for light to medium agricultural tasks, but users should be aware of potential overheating risks during prolonged operation in hot climates.
| Description |
Porsche 329/diesel/3-cylinder/air-cooled |
| Displacement |
160.2 ci/2.6 L |
| Bore/Stroke |
3.86x4.56 inches/98 x 116 mm |
| Power |
35 hp/26.1 kW |
| Rated RPM |
2300 |
PORSCHE SUPER ENGINES
The Porsche Super tractor features a robust 2.5L or 2.6L three-cylinder diesel engine, providing efficient power for agricultural tasks. The compact engine design enhances maneuverability in tight spaces, making it suitable for small to medium-sized farms. However, the relatively low horsepower output may limit its performance in heavy-duty applications, necessitating careful evaluation of intended use.
| Description |
Porsche 2.5L 3-cyl diesel/Porsche 2.6L 3-cyl diesel |
TRANSMISSIONS OVERVIEW
The Porsche Super tractor features a unique 5-speed or optional 8-speed gearbox, allowing for versatile torque management and improved efficiency across various agricultural applications. The 8-speed gearbox enhances operational flexibility, offering greater speed variations suited for different terrains, while the 5-speed version may simplify maintenance and reduce potential wear. Optimal usage scenarios include heavy-duty fieldwork with the 8-speed for fine-tuning power delivery or lighter tasks with the 5-speed for efficiency and ease of use.
| Description |
5-speed gear/8-speed gear |
TRANSMISSION 1
The Porsche Super tractor features a 5-speed forward and 1-speed reverse gear system, providing efficient torque management for varying agricultural tasks. The ability to fine-tune speed allows for precise control in field operations, enhancing productivity. However, the limited reverse gear may pose challenges in maneuverability in tight spaces compared to models with more reverse options.
| Type |
gear |
| Gears |
5 forward and 1 reverse |
TRANSMISSION 2
The Porsche Super tractor features a complex 8-speed forward and 4-speed reverse gear system, which enhances operational flexibility and efficiency across varied terrains. The dry disc clutch offers durability and ease of maintenance, although it can be sensitive to excessive heat during prolonged use. Prospective users should consider its suitability for heavy-duty tasks while being aware of potential clutch wear in continuous high-load applications.
| Type |
gear |
| Gears |
8 forward and 4 reverse |
| Clutch |
dry disc |
MECHANICAL
The Porsche Super Tractor's 4x2 configuration offers advantages in lighter-duty applications and better maneuverability, but it may struggle with traction in challenging terrains compared to 4WD systems. The manual steering can provide a more connected feel for experienced operators, although it may require more effort during extended use. With a 5-speed/8-speed transmission, operators benefit from versatility in gear selection, allowing for optimized performance across various tasks, though it may lack the automated features seen in modern tractors.
| Chassis |
4x2 2WD |
| Steering |
manual |
| Brakes |
drum |
| Cab |
Open operator station. |
| Transmissions |
5-speed gear/8-speed gear |
POWER TAKE-OFF (PTO)
PORSCHE SUPER TIRES
The Porsche Super tractor features front Ag tires sized 6.50-20 and rear Ag tires sized 14-28, optimizing traction for agricultural applications. Its tire specifications indicate a high load capacity and improved stability, advantageous for heavy field work. However, the larger rear tires may present challenges in tight maneuvering conditions, necessitating careful handling in confined spaces.
| Ag front |
6.50-20 |
| Ag rear |
14-28 |
DIMENSIONS
| Wheelbase |
78.7 inches/199 cm |
| Length |
127.2 inches/323 cm |
| Width |
71.9 inches/182 cm |
| Height (steering wheel) |
65.4 inches/166 cm |
| Operating weight |
4839 lbs/2194 kg |
| Ballasted weight |
8225 lbs/3730 kg |
| Ground clearance |
15.8 inches/40 cm |
DIMENSIONS & TIRES
The Porsche Super tractor features a compact wheelbase of 78.7 inches, enhancing maneuverability in tight spaces, essential for small farms or vineyards. With a weight of 4839 lbs, its stability allows for effective traction but may limit off-road capabilities due to mechanical strain on softer ground. The front and rear tire sizes—6.00-19 and 11-36 respectively—offer a balance between road performance and field operation, though tire maintenance and replacements can be challenging given their specialized sizes.
| Wheelbase |
78.7 inches/199 cm |
| Weight |
4839 lbs/2194 kg |
| Front tire |
6.00-19 |
| Rear tire |
11-36 |
BELT PULLEY
| Diameter |
8.66 inches/21 cm |
| Width |
5.90 inches/14 cm |
| RPM |
1460 |
| Speed |
3307 ft/min/1007.97 meters/min |
