1-844-F1PARTS | 1-844-317-2787 | sales@formularaceparts.com | About | Contact

1-844-F1PARTS | 1-844-317-2787
sales@formularaceparts.com | About | Contact

Hyperco 2.5" I.D. x 4" Free Length Coilover Spring, 350-700lbs/in Rate (Choose Rate)
Hyperco 2.5" I.D. x 4" Free Length Coilover Spring, 350-700lbs/in Rate (Choose Rate) - Image 2
Hyperco 2.5" I.D. x 4" Free Length Coilover Spring, 350-700lbs/in Rate (Choose Rate) - Image 3

Hyperco 2.5″ I.D. x 4″ Free Length Coilover Spring, 350-700lbs/in Rate (Choose Rate)

SKU: HYP-184B Categories: , Tags: , , , , , , , Brand:

$85.99

Hyperco 2.5″ I.D. x 4″ Free Length Coilover Springs

Hyperco high-performance coil-over springs, or “Hypercoils” are the benchmark in motorsport suspension. These 2.5″ (63.5 mm) inside diameter, 4″ (101.6 mm) free length springs (Hyperco B series) are precision CNC-wound from premium high-tensile alloy steel and 100% load-tested for accurate, repeatable spring rates that hold true throughout their travel — so the rate on the label is the rate on the car.

Compared to conventional suspension springs, Hyperco coil-over springs provide more usable deflection and weigh less, reducing unsprung and overall vehicle weight. The 2.5″ I.D. suits coilover kits and threaded-body shocks built around a 2.5″ I.D. spring seat (verify your perch/slider).

Choose Your Spring Rate

Select your required spring rate from the dropdown. This 2.5″ x 4″ family is offered in rates from 350 lbs/in (61 N/mm) up through 700 lbs/in (123 N/mm). Use the rate specified by your chassis setup sheet or suspension tuner. Each spring is sold individually; most applications use them in matched pairs.

Specifications by Rate (Imperial & Metric)

All springs: 2.5″ (63.5 mm) I.D., 4″ (101.6 mm) free length, B series, blue powder-coat finish. Deflection, max load, outside diameter, and solid height vary by rate:

SKU Rate (lbs/in) Rate (N/mm) Deflection (in) Deflection (mm) Max Load (lb) Max Load (kg) O.D. (in) O.D. (mm) Solid Ht. (in) Solid Ht. (mm)
184B0350 350 61.3 2.766 70.3 968 439 3.353 85.2 1.234 31.3
184B0400 400 70.1 2.668 67.8 1067 484 3.27 83.1 1.332 33.8
184B0450 450 78.8 2.492 63.3 1121 508 3.314 84.2 1.508 38.3
184B0500 500 87.6 2.492 63.3 1246 565 3.33 84.6 1.508 38.3
184B0600 600 105.1 2.537 64.4 1522 690 3.43 87.1 1.463 37.2
184B0700 700 122.6 2.335 59.3 1635 742 3.408 86.6 1.665 42.3

Metric values are converted from Hyperco’s published imperial specifications (1 lb/in = 0.175 N/mm; 1 in = 25.4 mm; 1 lb = 0.454 kg) and rounded.

Features

  • Nominal 2.5″ (63.5 mm) inside diameter, 4″ (101.6 mm) free length
  • Hyperco B series, blue powder-coat finish
  • Precision CNC-wound, 100% rate-tested and validated
  • High-tensile alloy steel; corrosion-resistant finish
  • Lifetime warranty against loss of free height beyond Hyperco spec
  • Proudly made in the USA — trusted in NASCAR, IndyCar, and pro road racing

Need a rate not shown, a different free length or I.D.? Contact us — we can get the full Hyperco range.

SKU: HYP-184B Categories: , Tags: , , , , , , , Brand:

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