Swift Springs was found in 1997 in Tokyo, Japan as a motorsports subdivision of Tokyo Hatsujo Manufacturing Co, Ltd. which has been leading in spring technology since 1924. They’ve just started making a name for themselves in the states and there have been no complaints from our customers yet. That’s why we recommend Swift made springs whether for a simple lowering spring upgrade or a custom coil-over spring application.
The following videos demonstrate the difference between typical lowering springs vs. Swift springs.
Typical lowering spring setup (non-Swift):
Notice how the coils bind every now and then during travel. This can create additional wear and damage to your suspension. Not to mention, it can mess up your track times.
Swift Springs on oval dirt track:
Swift Springs on oval paved track:
Watch the amount of stroke. No binding either. The big shock clearance also minimizes the chance of any contact between the springs and shock even under the harshest race conditions.
H5S.TW – Motorsports most advanced spring material
Swift Springs R&D created H5S.TW, which is a material stronger than regular silicone and chrome. This allows them to make the spring wire thinner. In turn, their springs need fewer coils which dramatically increases available stroke while decreasing weight significantly.
Durability Graph
Weight Comparison Graph
Super linear rate characteristics
Unlike other spring manufacturers who test and optimize stroke at different rates on their springs, Swift tests the spring rate through the entire stroke to provide the optimal rate.
Swift springs are within 3% of the spring rate from 20-30% of the stroke all the way to about 80% of the stroke. (the average stroke range for most road race motorsports)
The entire line of Swift Springs and products is available through Evasive Motorsports. We also proudly use Swift Springs on our own project vehicles.
