Hyperco Coil Spring

Hyperco Coil Springs: Race-Proven Engineering for Every Application

When it comes to high-performance suspension, few names carry the weight of Hyperco. Coil springs are the cornerstone of Hyperco's product lineup, and for good reason — the brand has spent more than 50 years perfecting the craft of suspension spring engineering in the most demanding environments motorsports has to offer. The result is a lineup of coil springs, sold under the iconic Hypercoils name, that serve everyone from professional racing teams to weekend track enthusiasts and off-road adventurers.

A Legacy Built on Winning

The Hypercoils story traces back to the early 1960s, when Jim Fielder pioneered spring designs that would go on to dominate motor racing. The technology and design philosophies he developed evolved directly into what is today known as the Hyperco brand. That heritage is not just history — it translates directly into product performance. Every Indy 500-winning car for the past half century has relied on Hyperco springs, and the brand's record extends across NASCAR, IndyCar, Trans-Am, dirt track, and beyond.

Proprietary Technologies That Set Hypercoils Apart

What separates Hyperco coil springs from the competition isn't just racing pedigree — it's the engineering built into every coil. Hyperco's standard coilover spring design employs Optimum Body Diameter (OBD) technology, which adjusts the body diameter of the spring relative to the end coils to provide more deflection and help resist bowing, achieving a more consistent spring rate and better overall performance. For applications demanding even greater travel, Hyperco offers the Ultra High Travel (UHT) design, built specifically for light-rate, high-travel coilover applications like dirt and pavement racing. The UHT design features a larger "body bulge" over the standard OBD design, which allows for additional deflection, rate linearity, and resistance to bowing.

For conventional front spring applications — particularly circle track racing — Hyperco's Dynamic Travel Response™ design allows springs to exceed performance requirements for travel and rate linearity while being built with significantly less physical weight. The High-Travel Conventional Front Spring brings closed-end NASCAR-style front spring technology to Hyperco's broader conventional spring lineup, giving racers more suspension travel and enabling more aggressive, faster setups.

Tolerance and Consistency You Can Count On

Precision is not a marketing term for Hyperco — it's a measurable standard. Hyperco guarantees spring rate tolerances of plus or minus 2 percent, but in practice, Hypercoils typically run within 1 percent tolerances, and Hyperco deliberately avoids offering rates that overlap. This level of consistency means that race teams can develop suspension setups that repeat reliably from race to race, year to year, and coil to coil.

Every Hypercoil is finished with a tough blue epoxy powder coat, and advanced metallurgy, spring winding, and heat treating techniques ensure these springs won't lose ride height or rate over time. Hyperco backs the entire Hypercoils line with a limited lifetime warranty, reflecting the company's confidence in its manufacturing quality. Every spring is proudly designed and made in the USA.

Who Are Hyperco Coil Springs For?

Hyperco coil springs cover an exceptionally wide range of applications. Whether you're building a circle track race car, setting up an IndyCar-spec coilover suspension, tackling off-road terrain on a side-by-side or UTV, or simply upgrading the suspension on a street performance vehicle, there is a Hypercoil spring engineered for the task. Springs are available across a wide range of free lengths, inner diameters, and spring rates — providing the suspension designer latitude to create an optimized motion ratio for virtually any wheel travel requirement.

Explore the full Hyperco brand catalog or browse all coil springs to find the right fit for your build.