A Comprehensive Directory Of Aftermarket Parts For The Nissan 240sx
The Nissan 240SX, particularly the S13 and S14 chassis, enjoys legendary status within the automotive enthusiast community. Its popularity stems from its responsive handling, relatively lightweight construction, and most importantly, its immense potential for modification. This potential has fueled a thriving aftermarket scene, offering a vast array of parts designed to enhance every aspect of the car, from its engine and drivetrain to its suspension and aesthetics. Navigating this sea of options can be daunting, so this guide aims to provide a comprehensive overview of the aftermarket parts available for the 240SX, breaking down their functions and offering insights into choosing the right components for your specific needs.
Engine and Performance Upgrades
The heart of any performance build lies within the engine bay. The 240SX initially came with the KA24DE, a reliable but somewhat underwhelming engine. Many owners opt for engine swaps or significant modifications to the original powerplant.
Engine Swaps: The Holy Grail of 240SX Performance
The most popular engine swap is undoubtedly the SR20DET. This turbocharged, 2.0-liter engine offers a significant power increase over the KA24DE and a wealth of aftermarket support. When considering an SR20DET swap, several options exist, each with its nuances:
- Redtop SR20DET: Typically found in earlier S13 models, known for its responsiveness and simpler electronics.
- Blacktop SR20DET: Found in later S13 and early S14 models, features improvements like a more efficient turbocharger and revised ECU.
- S15 SR20DET: Found only in the JDM S15 Silvia, boasts the highest power output and features an improved ball-bearing turbocharger.
Beyond the SR20DET, other swaps are gaining traction, including:
- RB25DET/RB26DETT: Inline-six engines offering significant power potential but requiring more extensive modifications to the chassis.
- LS Series V8s: A powerful and relatively affordable option, often requiring custom fabrication and significant weight distribution considerations.
- 1JZ/2JZ-GTE: Another inline-six option, similar to the RB series in terms of complexity and potential.
When choosing an engine swap, consider your budget, power goals, and the level of fabrication required. A properly executed SR20DET swap offers a good balance of performance, cost, and ease of installation.
KA24DE Upgrades: Making the Most of the Stock Engine
While an engine swap offers the most significant power gains, the KA24DE can also be significantly improved with aftermarket parts. Common upgrades include:
- Cold Air Intake: Improves airflow to the engine, potentially increasing horsepower, though gains are typically modest.
- Headers and Exhaust: Improve exhaust flow, reducing backpressure and increasing horsepower.
- Performance Cams: Modify valve timing, increasing horsepower and torque at different RPM ranges. Requires careful selection to match your driving style.
- ECU Tuning: Optimize fuel and ignition maps for improved performance and efficiency. Essential for maximizing the benefits of other modifications.
Drivetrain Enhancements
Increased horsepower necessitates upgrading the drivetrain to handle the added stress. Key areas for improvement include:
Clutch and Flywheel
A performance clutch is essential for transmitting the increased power to the wheels without slippage. Options range from upgraded organic clutches for street use to multi-plate clutches for high-horsepower applications. A lightweight flywheel can also improve throttle response and acceleration but may compromise drivability.
Transmission
The stock 240SX transmission can handle moderate power increases, but for more significant horsepower, an upgraded transmission is recommended. Options include:
- Z32 Transmission: A stronger transmission from the Nissan 300ZX, often used with an adapter plate for SR20DET swaps.
- CD009 Transmission: A robust six-speed transmission from the Nissan 350Z/370Z, requiring more extensive modification.
Differential
A limited-slip differential (LSD) significantly improves traction by distributing power evenly to both rear wheels. Options include:
- Clutch-Type LSD: Offers aggressive locking and is suitable for drifting and track use but can be noisy and require more maintenance.
- Torsen LSD: Provides smoother engagement and is better suited for street use but may not be as effective in extreme situations.
- Viscous LSD: Offers a compromise between clutch-type and Torsen LSDs, providing decent locking performance with less noise.
Suspension and Handling Upgrades
The 240SX is renowned for its handling capabilities, which can be further enhanced with aftermarket suspension components.
Coilovers
Coilovers replace the stock springs and shocks with adjustable units, allowing you to fine-tune ride height, damping, and rebound. This provides greater control over handling and allows you to optimize the suspension for different driving conditions.
Sway Bars
Sway bars (also known as anti-roll bars) connect the left and right suspension components, reducing body roll during cornering. Upgrading to thicker sway bars can significantly improve handling.
Control Arms
Adjustable control arms allow you to fine-tune suspension geometry, such as camber and caster. This is crucial for optimizing handling and tire wear, particularly after lowering the car.
Bushings
Replacing worn or soft rubber bushings with polyurethane or spherical bearings can improve suspension responsiveness and reduce unwanted movement. However, stiffer bushings can also increase NVH (noise, vibration, and harshness).
Braking System Upgrades
Increased horsepower necessitates improved braking performance. Upgrading the braking system can significantly improve stopping power and safety.
Big Brake Kits
Big brake kits typically include larger rotors, calipers with more pistons, and upgraded brake pads. This provides increased braking force and improved heat dissipation.
Brake Pads
Upgrading to performance brake pads can significantly improve braking performance, particularly at higher temperatures. Options range from street-performance pads to track-oriented pads with higher friction coefficients.
Brake Lines
Stainless steel brake lines replace the stock rubber lines, providing a firmer pedal feel and improved braking response by reducing flex.
Aesthetics and Interior
While performance is paramount, many 240SX owners also focus on aesthetics and interior enhancements.
Body Kits
Numerous body kits are available for the 240SX, ranging from subtle lip kits to aggressive widebody conversions. Popular brands include Rocket Bunny, Origin Labo, and Vertex.
Wheels and Tires
Aftermarket wheels and tires can significantly improve the appearance and handling of the 240SX. Choosing the right size and offset is crucial for achieving the desired look and performance.
Interior Upgrades
Interior upgrades can range from aftermarket seats and steering wheels to gauge clusters and sound systems. Many owners also opt for roll cages or harnesses for added safety on the track.
Choosing the Right Parts: A Strategic Approach
The vast array of aftermarket parts available for the 240SX can be overwhelming. Before making any purchases, it's essential to develop a clear plan based on your budget, driving style, and performance goals. Consider the following factors:
- Budget: Set a realistic budget and prioritize the most important upgrades first.
- Driving Style: Choose parts that are suited to your driving style, whether it's street driving, drifting, or track racing.
- Performance Goals: Determine your desired power output, handling characteristics, and braking performance.
- Compatibility: Ensure that the parts you choose are compatible with your existing modifications and with each other.
- Reliability: Research the reliability of different brands and components before making a purchase.
By carefully considering these factors, you can make informed decisions and build a 240SX that meets your specific needs and expectations. Remember, building a car is a journey, not a race. Take your time, research your options, and enjoy the process.
Investing in quality parts and professional installation, when necessary, will ultimately save you time and money in the long run. Don't compromise on safety or reliability in pursuit of cheap upgrades. The 240SX is a capable platform, and with the right modifications, it can be transformed into a truly exceptional machine.