Sourcing And Fitting An Aftermarket Hardtop On A 240sx Convertible

Sourcing and Fitting an Aftermarket Hardtop on a 240SX Convertible

The Nissan 240SX is a popular platform for modification and customization, especially among enthusiasts of drifting and track days. The convertible model, while stylish, can sometimes lack the rigidity and weather protection desired for year-round driving or competitive use. This is where an aftermarket hardtop comes in. This article provides a comprehensive guide to sourcing and fitting an aftermarket hardtop on your 240SX convertible.

Why Consider a Hardtop?

Before diving into the specifics, let's consider the benefits of adding a hardtop to your 240SX convertible:

Improved Rigidity: A hardtop significantly stiffens the chassis, enhancing handling and reducing body flex, especially noticeable during spirited driving. This is crucial for performance-oriented builds.
Enhanced Weather Protection: Hardtops provide superior insulation and protection from rain, snow, and wind compared to the soft top, making the car more comfortable in inclement weather.
Reduced Road Noise: The hardtop helps to dampen road noise, creating a quieter and more comfortable driving experience.
Security: A hardtop offers improved security compared to a soft top, deterring theft and protecting your belongings.
Aesthetic Appeal: Many find the hardtop alters the car's appearance in a positive way, offering a sleek and sporty look.

Sourcing an Aftermarket 240SX Hardtop

Finding the right hardtop for your 240SX convertible requires careful consideration. Here's a breakdown of what to look for:

Types of Hardtops

There are generally two main types of aftermarket hardtops available:

Fiberglass Hardtops: These are typically the most affordable option. Fiberglass hardtops are relatively lightweight but can be prone to cracking or damage from impacts. The quality of the fiberglass layup can vary significantly between manufacturers.
Carbon Fiber Hardtops: Carbon fiber hardtops are significantly more expensive than fiberglass options. They offer superior strength and weight savings. Carbon fiber also provides a distinctive aesthetic.

Key Considerations When Choosing a Hardtop

When selecting a hardtop, keep these factors in mind:

Fitment: This is paramount. Ensure the hardtop is specifically designed for the 240SX convertible (S13 or S14 chassis). Read reviews and research the manufacturer's reputation for fitment accuracy. Poor fitment can lead to leaks, wind noise, and difficulty securing the hardtop.
Material: As mentioned above, choose between fiberglass or carbon fiber based on your budget and performance goals.
Weight: A lighter hardtop will improve handling and acceleration. Check the manufacturer's specifications for the weight of the hardtop.
Hardware: Ensure the hardtop comes with all necessary mounting hardware, including brackets, latches, and seals. Missing hardware can be difficult and expensive to source separately.
Rear Window: Most aftermarket hardtops include a rear window. Consider the quality of the window and whether it is heated or tinted.
Seals and Weather Stripping: The quality of the seals and weather stripping is crucial for preventing leaks and wind noise. Inspect these carefully before purchasing.
Reputation of the Manufacturer: Research the manufacturer's reputation for quality, customer service, and warranty support. Read reviews and forums to get feedback from other users.
Price: Hardtop prices can vary significantly depending on the material, brand, and features. Set a budget and stick to it.

Where to Buy

Here are some common places to source aftermarket 240SX hardtops:

Online Retailers: Websites like eBay, Amazon, and specialty automotive parts retailers often carry a variety of hardtops. Be sure to check seller ratings and read reviews carefully.
Direct from Manufacturers: Some manufacturers sell directly to consumers through their websites. This can sometimes offer better pricing or customization options.
Forums and Online Marketplaces: Online forums dedicated to the 240SX often have classifieds sections where individuals sell used or new hardtops. This can be a good place to find deals, but exercise caution and thoroughly inspect the hardtop before purchasing.
Local Performance Shops: Local performance shops that specialize in Japanese cars may carry or be able to order hardtops. This can be a good option if you want to see the hardtop in person before buying.

Fitting the Hardtop: A Step-by-Step Guide

Installing an aftermarket hardtop on your 240SX convertible can be a relatively straightforward process, but it's important to follow the instructions carefully. Consult the manufacturer's instructions that come with your hardtop first! These are general guidelines and may not apply to all hardtop models.

Tools and Materials You'll Need

Socket set
Wrench set
Screwdrivers (Phillips and flathead)
Torque wrench
Measuring tape
Masking tape
Soft cloths
Penetrating oil (optional, for stubborn bolts)
Silicone sealant (optional, for extra weatherproofing)
Helper (strongly recommended)

Installation Steps

Prepare the Car: Lower the soft top completely. Clean the area where the hardtop will sit, removing any dirt, debris, or old weather stripping.
Install Mounting Brackets (if required): Some hardtops require the installation of mounting brackets. Follow the manufacturer's instructions for the correct placement and attachment of these brackets. Use a torque wrench to tighten the bolts to the specified torque.
Test Fit the Hardtop: Carefully lift the hardtop onto the car with the help of your assistant. Position it so that it aligns with the mounting points and the body of the car. Do not force it. This is a crucial step. Check for any interference or gaps.
Adjust as Needed: If the hardtop doesn't fit perfectly, make adjustments to the mounting brackets or the hardtop itself. You may need to loosen the brackets and reposition them slightly. Use shims if necessary to achieve proper alignment.
Secure the Hardtop: Once the hardtop is properly aligned, secure it to the car using the provided latches or bolts. Tighten the fasteners to the specified torque. Do not overtighten, as this can damage the hardtop or the mounting points.
Install Weather Stripping and Seals: Install any weather stripping or seals that came with the hardtop. This will help to prevent leaks and wind noise. Ensure that the seals are properly seated and that they make good contact with the body of the car. You can use silicone sealant to further improve weatherproofing.
Final Inspection: After the hardtop is installed, carefully inspect it to ensure that it is properly secured and that all seals are in place. Check for any leaks or wind noise by driving the car at various speeds. Make any necessary adjustments.

Troubleshooting Common Issues

Even with careful installation, you may encounter some common issues when fitting an aftermarket hardtop:

Leaks: Leaks are a common problem. Check the seals around the windows and the edges of the hardtop. Ensure that the seals are properly seated and that they make good contact with the body of the car. Apply silicone sealant to any areas where leaks are suspected.
Wind Noise: Wind noise can be caused by gaps between the hardtop and the body of the car. Check the seals and weather stripping. You may need to add additional weather stripping or use foam tape to fill any gaps.
Poor Fitment: Poor fitment can be caused by improper installation or a hardtop that is not designed for your specific model of 240SX. Double-check the mounting brackets and make sure they are properly aligned. If the hardtop is significantly out of alignment, you may need to return it to the seller.
Rattling: Rattling can be caused by loose hardware or vibrations. Check all the fasteners and make sure they are properly tightened. You may also need to add padding or shims to prevent vibrations.

Maintenance and Care

To keep your aftermarket hardtop in good condition, follow these maintenance tips:

Regular Cleaning: Clean the hardtop regularly with a mild soap and water solution. Avoid using abrasive cleaners or harsh chemicals.
Waxing or Polishing: Waxing or polishing the hardtop will help to protect the finish and prevent fading. Use a high-quality automotive wax or polish.
Protect from UV Rays: Prolonged exposure to UV rays can damage the hardtop. Park your car in a garage or under a cover when possible.
Inspect Seals Regularly: Inspect the seals and weather stripping regularly for cracks or damage. Replace them as needed.
Tighten Hardware: Check the fasteners periodically and tighten them as needed.

Conclusion

Adding an aftermarket hardtop to your 240SX convertible can significantly improve its performance, comfort, and appearance. By following the tips and guidelines in this article, you can source and install a hardtop with confidence. Remember to prioritize proper fitment, quality materials, and careful installation to ensure a successful and long-lasting upgrade. Good luck, and enjoy the enhanced driving experience!