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Coilovers are a popular suspension upgrade for car enthusiasts, providing adjustable ride height and improved handling characteristics. Understanding the technical aspects of coilover adjustments is crucial for optimizing performance on both the street and track. This article will delve into three key areas: spring preload, dampening, and alignment.
Spring Preload
Spring preload refers to the initial tension applied to the coil spring when the suspension is at rest. Adjusting the preload can significantly impact the vehicle’s ride quality and handling. Here are some important points to consider:
- Definition: Spring preload is the amount of compression placed on the spring before any load is applied.
- Impact on Ride Height: Increasing preload raises the ride height, while decreasing it lowers the ride height.
- Effect on Handling: More preload can lead to a stiffer ride, improving responsiveness but sacrificing comfort.
- Adjustability: Most coilovers come with adjustable spring perches, allowing for easy preload adjustments.
How to Adjust Spring Preload
To adjust spring preload, follow these steps:
- Ensure the vehicle is on a level surface and the suspension is unloaded.
- Use a spanner wrench to adjust the spring perch.
- Make small adjustments and recheck ride height.
- Test drive the vehicle to evaluate changes in handling and comfort.
Dampening
Dampening controls the rate at which the suspension compresses and rebounds. Proper dampening settings are essential for maintaining tire contact with the road, which directly affects handling and stability. Here’s what you need to know:
- Types of Dampening: Most coilovers feature either single or double adjustable dampening.
- Compression vs. Rebound: Compression dampening controls how quickly the shock compresses, while rebound dampening affects how quickly it returns to its original position.
- Adjustability: Look for coilovers with easy-to-reach knobs or dials for on-the-fly adjustments.
- Impact on Performance: Stiffer settings improve responsiveness but may lead to a harsh ride.
How to Adjust Dampening
Here’s a guide to adjusting dampening settings:
- Start with the manufacturer’s recommended settings.
- Make adjustments incrementally, usually in clicks or half-turns.
- Test the vehicle after each adjustment to assess handling characteristics.
- Fine-tune based on driving style and conditions (street vs. track).
Alignment
Proper alignment is crucial for optimal tire wear and handling. When installing coilovers, alignment settings may change, necessitating a professional alignment. Key alignment aspects include:
- Camber: The angle of the wheels in relation to the ground. Negative camber can improve cornering grip.
- Toe: The angle at which the wheels point in relation to the centerline of the vehicle. Proper toe settings enhance stability.
- Caster: The angle of the steering axis. Adjusting caster can improve steering feel and stability.
- Importance of Professional Alignment: Always have a professional alignment done after coilover installation to ensure optimal performance.
How to Prepare for Alignment
Before heading to an alignment shop, consider these steps:
- Ensure all coilover adjustments are complete.
- Check for any worn suspension components that may affect alignment.
- Communicate your driving style and intended use to the alignment technician.
- Request adjustments based on your preferences (street vs. track).
Conclusion
Understanding and adjusting spring preload, dampening, and alignment are essential for maximizing the performance of coilovers. Whether you are tuning your vehicle for street use or preparing for a track day, these adjustments can significantly influence handling, comfort, and overall driving experience. Regularly revisiting these settings will ensure your suspension remains optimized for your needs.