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Helper Springs: What are they and do I need them?

  • Posted: 09-28-2015 05:48 PM
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  • Suspension

Helper springs are short, thin, soft-rate, springs that compliment the main spring in a coil-over damper suspension system.

In an adjustable-height coil-over, the height of the car is adjustable by a threaded collar at the base of the spring. Many users find that as they lower the spring on the damper tube, the spring can come loose from its upper seat. While the unseat-ing of a spring would not happen in normal driving, it certainly can and does happen if the wheels ever leave the ground over uneven pavement or on a lift. If you are a rally-driver jumping a car, helper springs can be really important!

To keep the main spring firmly in place under all suspension cycle positions, the helper spring takes up the "extra space" left between the main spring and the seats.

 

 

Helper springs are very soft and have very little, if any, impact on the ride or handling of the damper system. They do add a small amount of weight, but does not generally impact performance.

Single-height adjustable coil-overs referenced here may need helper springs if extreme lowering is desired, however it should be noted that adding helper springs will reduce the total lowering available. If extreme lowering is desired, it is generally better to buy full-length adjustable coil-over dampers, where the lower mount bracket is adjustable.



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