Nissan 240SX Engine Specifications
The Nissan 240SX is a popular sports car that has garnered a dedicated following due to its lightweight design, rear-wheel-drive layout, and tunable engine options. The 240SX was produced in various configurations, primarily featuring the KA24 engine series. Below is a detailed overview of the engine specifications for the Nissan 240SX.
Engine Specifications Chart
| Model Year | Engine Type | Displacement | Power Output | Torque | Compression Ratio |
|---|---|---|---|---|---|
| 1989-1990 | KA24E (SOHC) | 2.4L (2389 cc) | 140 hp @ 5,600 rpm | 152 lb-ft @ 4,000 rpm | 9.5:1 |
| 1991-1994 | KA24DE (DOHC) | 2.4L (2389 cc) | 155 hp @ 5,600 rpm | 160 lb-ft @ 4,000 rpm | 9.5:1 |
| 1995-1998 | KA24DE (DOHC) | 2.4L (2389 cc) | 155 hp @ 5,600 rpm | 160 lb-ft @ 4,000 rpm | 9.5:1 |
The Nissan 240SX was equipped with the KA24E and KA24DE engines, which are known for their reliability and tuning potential. The KA24E is a single overhead cam (SOHC) engine, while the KA24DE is a dual overhead cam (DOHC) engine, offering improved performance and efficiency.
Engine Configuration
The engine configuration of the Nissan 240SX plays a significant role in its performance characteristics. Understanding the layout and design of these engines can help enthusiasts make informed decisions about modifications and maintenance.
Engine Layout
– Type: Inline-4
– Configuration: Longitudinally mounted
– Valvetrain:
– KA24E: SOHC, 12 valves (3 valves per cylinder)
– KA24DE: DOHC, 16 valves (4 valves per cylinder)
Key Features
– Fuel System: Multi-point fuel injection (MPI)
– Ignition System: Distributor-based ignition
– Cooling System: Water-cooled with a radiator
– Exhaust System: Cast iron manifold with a single exhaust outlet
The inline-4 configuration provides a good balance of power and efficiency, making the 240SX suitable for both daily driving and performance applications. The DOHC design of the KA24DE allows for better airflow and higher RPM capabilities, which is advantageous for tuning and performance upgrades.
Engine Oil Specifications & Service Intervals
Proper maintenance is crucial for the longevity and performance of the Nissan 240SX engine. This includes regular oil changes and using the correct oil specifications.
Engine Oil Specifications
– Oil Type:
– Recommended: SAE 10W-30 (for most climates)
– Alternative: SAE 5W-30 (for colder climates)
– Oil Capacity:
– With filter: 4.5 quarts (approximately 4.3 liters)
– Without filter: 4.0 quarts (approximately 3.8 liters)
Service Intervals
Regular oil changes are essential for maintaining engine health. Below are the recommended service intervals:
– Oil Change Interval:
– Every 3,000 to 5,000 miles (4,800 to 8,000 km) or every 3 to 6 months, whichever comes first.
– Oil Filter Replacement:
– Replace with every oil change.
– Engine Inspection:
– Inspect engine components and fluids every 15,000 miles (24,000 km).
Maintenance Tips
– Use Quality Oil: Always use high-quality engine oil that meets or exceeds the specifications outlined in the owner’s manual.
– Monitor Oil Levels: Regularly check the oil level and top off as needed to prevent engine wear.
– Watch for Leaks: Inspect for any signs of oil leaks, which can lead to low oil levels and potential engine damage.
– Change Oil Filter: Always replace the oil filter during oil changes to ensure clean oil circulation.
Conclusion
The Nissan 240SX, with its KA24 engine series, offers a blend of performance, reliability, and tunability that appeals to car enthusiasts. Understanding the engine specifications, configuration, and maintenance requirements is essential for anyone looking to own or modify this iconic sports car. Regular maintenance, including timely oil changes and using the correct oil specifications, will ensure that the 240SX remains a fun and reliable vehicle for years to come.
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