Nissan RB26 Engine Specifications
The Nissan RB26 engine is a legendary inline-six engine that has earned a reputation for its performance and reliability. It was primarily used in the Nissan Skyline GT-R models, particularly the R32, R33, and R34. Below are the detailed specifications of the RB26 engine.
| Specification | Details |
|---|---|
| Engine Type | Inline-6, DOHC |
| Displacement | 2.6 liters (2568 cc) |
| Compression Ratio | 8.5:1 |
| Power Output | 280 hp (206 kW) @ 6800 rpm |
| Torque | 368 Nm (271 lb-ft) @ 4400 rpm |
| Turbocharger | Twin Turbochargers |
| Fuel System | Multi-Point Fuel Injection |
| Ignition System | Distributor-less Ignition System (DIS) |
| Weight | Approximately 200 kg (440 lbs) |
Engine Configuration
The RB26 engine features a robust design that contributes to its performance capabilities. Here are some key aspects of its configuration:
1. Inline-Six Design
– The RB26 is an inline-six engine, which provides smooth power delivery and balance.
– This configuration allows for a more compact design compared to V6 engines.
2. DOHC Setup
– The engine is equipped with a Dual Overhead Camshaft (DOHC) setup, enhancing airflow and efficiency.
– Each cylinder head has two camshafts, one for intake and one for exhaust.
3. Twin Turbochargers
– The RB26 features a twin-turbo setup, which helps to reduce turbo lag and improve overall power output.
– Each turbocharger is responsible for three cylinders, allowing for efficient power generation.
4. Engine Block and Cylinder Head
– The engine block is made from cast iron, providing durability and strength.
– The cylinder head is aluminum, which helps reduce weight while maintaining structural integrity.
Engine Oil Specifications
Proper maintenance of the RB26 engine includes using the right engine oil. Below are the recommended oil specifications:
1. Oil Type
– Recommended oil type: Synthetic or Semi-Synthetic
– Viscosity grade: 10W-40 or 15W-50, depending on climate and usage conditions.
2. Oil Capacity
– Total oil capacity (including filter): Approximately 6.5 liters (6.9 quarts).
3. Oil Filter
– Use a high-quality oil filter compatible with the RB26 engine to ensure optimal filtration and performance.
Service Intervals
Regular maintenance is crucial for the longevity and performance of the RB26 engine. Below are the recommended service intervals:
1. Oil Change Intervals
– Change engine oil and filter every 5,000 to 7,500 kilometers (3,000 to 5,000 miles) under normal driving conditions.
– For high-performance or track use, consider changing oil every 3,000 kilometers (1,800 miles).
2. Coolant Replacement
– Replace engine coolant every 2 years or 40,000 kilometers (25,000 miles), whichever comes first.
3. Spark Plug Replacement
– Replace spark plugs every 30,000 to 50,000 kilometers (18,000 to 30,000 miles) for optimal performance.
4. Timing Belt Replacement
– Inspect timing belt every 100,000 kilometers (60,000 miles) and replace if necessary.
5. General Inspection
– Conduct a comprehensive inspection of the engine every 10,000 kilometers (6,000 miles) to check for leaks, wear, and other potential issues.
Conclusion
The Nissan RB26 engine is a remarkable piece of engineering that has stood the test of time. Its combination of power, reliability, and tuning potential makes it a favorite among car enthusiasts and tuners. By adhering to the recommended specifications and service intervals, owners can ensure their RB26 engine remains in peak condition for years to come.
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