What are the most common tips you pass along to serious racers?


Here is the list of the most common tips we have given our customers in order to gain a performance advantage using our products:

  • Hyperco/ICP Hydraulic (load centering) Spring Perches should be installed at both ends of the spring when running free lengths of 10”or less. For free lengths above 10” it is advisable to run them on only one end.
  • Properly designed and manufactured suspension coils (Hypercoils) will not lose free length / installed height under normal conditions. There is no need to put a racecar on blocks to keep load off of the springs.
  • Pre-loading a spring on a shock will not change its rate but it will impact the amount of load required to put the spring in motion: A 100# spring with 3” of pre load wound into it on a shock vs. a 300# spring with 1” of pre load wound into it on a shock… takes 301# to put either spring in motion (overcome pre load). If you apply 400# to both units the 100# spring will move one inch, the 300# spring will move .333”.
  • When rate testing conventional front springs it is important to ensure the helix (rise) in the rate tester is the same as the helix in the lower control arm of the car.
  • When rate testing springs for a specific application the preferred method is to pre-load them an amount equal to the static load they receive when they are installed in the car. The rate should then be tested over the displacement range the spring moves dynamically (on the track).
  • Spring Rubbers increase the rate of a spring by reducing the amount of active material. Spring rubbers can be cut to “tune” to a desired rate. The more rubber that is utilized the higher the rate increase.
  • Hyperco recommends selecting a spring free length on the basis of it operating dynamically between 20% and 80% of its total available deflection.
  • It is advisable to establish a few “non-race / verification springs” for periodic reference of rate testers calibration.
  • Springs that are reaching coil bind will exhibit signs of coil-to-coil contact. A close visual inspection will indicate damage to the powder coated / painted surfaces between adjacent coils. If this is present a longer free length spring or a higher rate spring should be installed.
  • Hydraulic (load centering) Spring Perches are in constant motion when the vehicle is on the track and will require rebuilding / maintenance. We recommend a maximum time between rebuilds of 10-12 hours. Dirty environments and high loading will decrease the time allowable between rebuilds.