Strange Engineering has brought the premier spring manufacturer of CART, Indy, Formula One, and NASCAR to drag racing: Hyperco. The spring is an integral suspension component yet its importance has been overlooked by most drag racers. You'll find that the most successful race teams spend an immense amount of time adjusting and tuning their suspensions to gain an advantage. To get the best performance from a shock setup, springs must be able to work in harmony with the suspension.
Hypercoil Drag Racing Springs are cold wound from pre heat-treated SAE 9254 chrome silicon wire, and optimum wire diameter is used for the individual design. After coiling, the closed ends are ground, and springs are thermally stress-relieved, preset, and shot-peened. Completed springs are magnafluxed, powdercoated blue, and inspected for size and integrity. Additionally, Hyperco tests each coil for true rate and etches it into the spring. Such strict manufacturing standards yield springs with +/- 2% tolerance range (most are within 1%). Sold individually, all springs have 2.5" ID.
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.