Selecting suspension components is a remarkably difficult process. There are many different types of coilovers available, with many different claims of increased handling performance, tunable ride height, or even better driving characteristics.
However, the most costly or alterable configuration isn’t really the best fit for your vehicle. When it comes to coilover kits, there are several things that should be taken into account before investing in them. A bit of research ahead of time can save you a ton of money and help you get something that works.
Start With Your Driving Goals
When you’re trying to compare different kits, first determine the things that you wish to alter about your vehicle. The suspension requirements of a car used primarily for commuting are different from those of a car used primarily for a weekend performance or a track build.
Predictable handling, reasonable comfort, and adequate suspension travel for uneven roads are all good features to have on a street car. For those who prefer to be on the track, adjustability and suspension response are more important.
Check Vehicle Compatibility Carefully
Not all coilover kits fit all vehicles. Before buying, make sure to verify the year, make, model, drivetrain, and suspension details. Changes already made to the car can also impact compatibility. Consider things like mounting points, clearance around wheels and tires, adjustment range, and spring specifications.
When in doubt, refer to the manufacturer’s technical data or talk to a qualified suspension specialist. It’s a lot easier to make sure they are compatible before ordering them than to find out when you are installing them.
Consider Ride Height and Suspension Travel
Lowering a vehicle can improve its appearance, but ride height should not be the only consideration. Dropping the car too far can reduce suspension travel and cause the suspension to bottom out over bumps. It can cause alignment, ground clearance, and tire clearance issues too.
A handy system offers sufficient travel for the roads you work on. A moderate level adjustment might be a better compromise for a street car than a very low level adjustment. The goal should be to control the suspension movement and not just get the car as low to the ground as possible.
Understand Damping Adjustability
Some coilover kits allow drivers to adjust damping, while others use fixed settings. When you need to fine-tune your suspension’s response to varying driving conditions, adjustable damping can come in handy.
But more adjustment also comes with more responsibility in terms of setting up the system. If you choose an adjustable setup, make changes gradually. Altering several settings at once makes it difficult to determine which adjustment improved or worsened the car’s behavior.
Don’t Ignore Spring Rates and Overall Balance
The stiffness of the springs can play a significant role in the car’s response to various stimuli. If the springs are too stiff, they can limit the flexibility of the body, but can also provide less comfort and less stability on bad roads.
More compliant springs may have more give, but may not offer the performance that the driver anticipates. The optimum rate will vary depending on the vehicle, suspension geometry, load distribution, tyre type and application.
