Technical Review Of Fortune Auto Coilovers For The Nissan 240sx
So, you're considering Fortune Auto coilovers for your Nissan 240SX? Or maybe you've already taken the plunge and are experiencing some of the, shall we say, quirks that can arise? You're not alone. The 240SX, a drift king and all-around awesome car, deserves a good suspension setup, and Fortune Auto offers some appealing options. But like any aftermarket performance part, there can be some hurdles to overcome.
Let's dive into a technical review, focusing on common issues and how to troubleshoot them. Think of me as your experienced mechanic buddy, guiding you through the potential pitfalls and helping you get the most out of your Fortune Auto investment. I'll cover everything from initial installation snags to long-term maintenance concerns, and even provide some realistic cost estimates.
Initial Installation & Common Pitfalls
The first impression is crucial, and with coilovers, a smooth installation sets the stage for happy motoring. Here's what to watch out for:
Ride Height Adjustments
One of the biggest draws of coilovers is adjustable ride height, but it’s also a common source of headaches. Before you even tighten the bolts, take the time to understand how the ride height adjustment works on your Fortune Autos. It's usually done by adjusting the threaded body of the shock within the lower mount.
Problem: Incorrect preload settings. Many people mistakenly adjust the ride height by compressing the spring. This drastically alters the spring rate and can lead to a bouncy, uncomfortable ride. Solution: Always adjust ride height by rotating the entire shock body within the lower bracket. The spring should be just snug, not significantly compressed.
Problem: Threads binding. The threads can get dirty and bind, making adjustments difficult. Solution: Clean the threads thoroughly with a wire brush and apply a penetrating lubricant like PB Blaster. Use a coilover spanner wrench (most sets come with one; if not, they're readily available for around $15-$30) to make the adjustments easier.
Problem: Uneven ride height. It's crucial to measure ride height at all four corners after installation. Use a measuring tape from the ground to a consistent point on the chassis (e.g., fender lip). Solution: Adjust the coilovers until the ride height is even on each side. A slight difference (within 1/4 inch) is acceptable, but anything more can affect handling.
Proper Torque Specs
This is non-negotiable. Using the wrong torque specs can lead to component failure, dangerous situations, and a seriously compromised ride. Solution: Consult the Fortune Auto documentation (or your 240SX service manual) for the correct torque specifications for all suspension components. Use a quality torque wrench to ensure accurate tightening. Torque wrenches range from $50-$200.
Problem: Forgetting to preload the bushings. This is particularly important for the lower control arm bolts. When tightening these bolts, the suspension should be at its normal ride height to prevent binding. Solution: Place a jack under the lower control arm to simulate the car's weight before tightening the bolts to the specified torque.
Clearance Issues
Aftermarket coilovers, especially those with larger springs or external reservoirs, can sometimes interfere with other components. Solution: Carefully inspect for any clearance issues after installation. Check for rubbing against brake lines, sway bars, or chassis components. Correct any issues immediately.
Problem: Reservoir placement. Fortune Auto coilovers with external reservoirs require careful placement to avoid damage. Solution: Secure the reservoirs with the provided brackets and ensure they are not exposed to excessive heat or debris. Consider using heat shielding or protective sleeves for added protection.
Performance & Handling Concerns
Once installed, it's time to assess the ride quality and handling. Here are some common complaints and their potential causes:
Excessive Bounciness or Harshness
Problem: Improper damper settings. Fortune Auto coilovers are adjustable, allowing you to fine-tune the damping characteristics. Solution: Start with the recommended damper settings provided by Fortune Auto (usually a good starting point is in the middle of the adjustment range). Then, adjust the dampers in small increments until you achieve the desired ride quality. Softer settings generally provide a more comfortable ride, while stiffer settings improve handling but can be harsher. Experiment to find what works best for your driving style and road conditions.
Problem: Incorrect spring rates. If the spring rates are too stiff for your car's weight or driving conditions, the ride will be harsh. Solution: Consider swapping to softer springs if you prioritize comfort. Conversely, if you experience excessive body roll or bottoming out, stiffer springs might be necessary.
Problem: Damper failure. If the dampers are blown or leaking, they won't be able to control the spring oscillations properly, leading to a bouncy ride. Solution: Inspect the dampers for leaks. If they are leaking or not functioning properly, they need to be rebuilt or replaced. Fortune Auto offers rebuild services for their coilovers.
Poor Handling or Instability
Problem: Incorrect alignment. After installing coilovers, it's crucial to get a proper wheel alignment. Solution: Take your car to a reputable alignment shop and have them adjust the camber, caster, and toe to the desired specifications. A good alignment can dramatically improve handling and tire wear. Expect to pay $80-$150 for a professional alignment.
Problem: Unbalanced suspension. If the suspension is not properly balanced, the car can feel unstable or unpredictable. Solution: Ensure that the ride height, damper settings, and spring rates are balanced on all four corners. Adjust the coilovers as needed to achieve a balanced setup.
Knocking or Clunking Noises
Problem: Loose components. Check all the bolts and fasteners to make sure they are properly torqued. Solution: Retorque all suspension components after a few hundred miles of driving. Pay particular attention to the top hats, lower mounts, and sway bar end links.
Problem: Worn bushings. Worn bushings can cause play in the suspension, leading to knocking or clunking noises. Solution: Inspect the bushings for wear or damage. Replace any worn bushings with new ones. Polyurethane bushings can improve handling but may also increase noise and vibration.
Problem: Coil bind. If the springs are compressed too much, they can bind and make noise. Solution: Adjust the ride height to reduce spring compression. Consider using helper springs or spring spacers to prevent coil bind.
Long-Term Maintenance
To ensure your Fortune Auto coilovers last and perform well, regular maintenance is essential.
Cleaning and Lubrication
Road grime, salt, and debris can damage the coilovers and cause corrosion. Solution: Regularly clean the coilovers with soap and water. Lubricate the threads with a penetrating lubricant to prevent binding. This should be done every few months, especially in areas with harsh weather conditions.
Inspection
Periodically inspect the coilovers for leaks, damage, or wear. Solution: Check the dampers for leaks, inspect the springs for cracks or damage, and examine the bushings for wear. Address any issues promptly to prevent further damage.
Rebuilding
Eventually, the dampers will need to be rebuilt. Fortune Auto recommends rebuilding their coilovers every 2-3 years, depending on usage. Solution: Contact Fortune Auto or a qualified suspension specialist to have the dampers rebuilt. Rebuilding typically involves replacing the seals, oil, and other worn components. A rebuild can cost anywhere from $150-$300 per corner, depending on the extent of the work needed.
Tools You'll Need
Here's a basic list of tools you'll want to have on hand:
- Socket set and wrenches
- Torque wrench
- Coilover spanner wrench
- Jack and jack stands
- Penetrating lubricant (PB Blaster, WD-40)
- Wire brush
- Measuring tape
- Wheel alignment tools (if you plan to do your own alignments, which is not recommended for beginners)
Cost Considerations
Beyond the initial cost of the coilovers (which can range from $1200-$2500+ depending on the model and features), factor in the following:
- Installation: $200-$500 (depending on labor rates)
- Alignment: $80-$150
- Maintenance: $50-$100 per year (for cleaning and lubrication)
- Rebuilding: $600-$1200 (every 2-3 years)
- Potential for additional parts (bushings, sway bar end links, etc.): Varies
Final Thoughts
Fortune Auto coilovers can significantly improve the handling and appearance of your Nissan 240SX. However, they are not a "plug-and-play" solution. Proper installation, careful setup, and regular maintenance are crucial to getting the most out of your investment. By understanding the potential issues and following the troubleshooting tips outlined above, you can ensure a smooth and enjoyable experience with your Fortune Auto coilovers. Remember to always prioritize safety and consult with a qualified mechanic if you are unsure about any aspect of the installation or setup process. Happy driving!