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 2.25" I.D. x 4" Free Length Coilover Spring, 400-1900lbs/in Rate (Choose Rate)
Hyperco 2.25" I.D. x 4" Free Length Coilover Spring, 400-1900lbs/in Rate (Choose Rate) - Image 2
Hyperco 2.25" I.D. x 4" Free Length Coilover Spring, 400-1900lbs/in Rate (Choose Rate) - Image 3
Hyperco 2.25" I.D. x 4" Free Length Coilover Spring, 400-1900lbs/in Rate (Choose Rate) - Image 4

Hyperco 2.25″ I.D. x 4″ Free Length Coilover Spring, 400-1900lbs/in Rate (Choose Rate)

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

$101.65

Hyperco 2.25″ I.D. x 4″ Free Length Coilover Springs

Hyperco high-performance coil-over springs, or “Hypercoils” are the benchmark in motorsport suspension. These 2.25″ (57.1 mm) inside diameter, 4″ (101.6 mm) free length springs (Hyperco A 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 2.25″ I.D. suits coilover kits and threaded-body shocks built around a 2.25″ I.D. spring seat (verify your perch/slider).

Choose Your Spring Rate

Select your required spring rate from the dropdown. This 2.25″ x 4″ family is offered in rates from 400 lbs/in (70 N/mm) up through 1900 lbs/in (333 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: 2.25″ (57.1 mm) I.D., 4″ (101.6 mm) free length, A 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)
184A0400 400 70.1 2.672 67.9 1069 485 3.117 79.2 1.328 33.7
184A0500 500 87.6 2.417 61.4 1209 548 3.05 77.5 1.583 40.2
184A0600 600 105.1 2.402 61.0 1441 654 3.08 78.2 1.598 40.6
184A0650 650 113.8 2.349 59.7 1527 693 3.1 78.7 1.651 41.9
184A0700 700 122.6 2.309 58.6 1616 733 3.172 80.6 1.691 43.0
184A0800 800 140.1 2.353 59.8 1647 747 3.294 83.7 1.647 41.8
184A0850 850 148.9 2.293 58.2 1949 884 3.188 81.0 1.707 43.4
184A0900 900 157.6 2.27 57.7 2042 926 3.218 81.7 1.73 43.9
184A1000 1000 175.1 2.232 56.7 2231 1012 3.303 83.9 1.768 44.9
184A1100 1100 192.6 2.193 55.7 2412 1094 3.226 81.9 1.807 45.9
184A1150 1150 201.4 2.15 54.6 2473 1122 3.278 83.3 1.85 47.0
184A1200 1200 210.2 2.13 54.1 2557 1160 3.295 83.7 1.87 47.5
184A1250 1250 218.9 2.109 53.6 2636 1196 3.37 85.6 1.891 48.0
184A1300 1300 227.7 2.093 53.2 2720 1234 3.321 84.4 1.907 48.4
184A1400 1400 245.2 1.874 47.6 2623 1190 3.288 83.5 2.126 54.0
184A1500 1500 262.7 2.021 51.3 3032 1375 3.352 85.1 1.979 50.3
184A1600 1600 280.2 1.81 46.0 2896 1314 3.324 84.4 2.19 55.6
184A1700 1700 297.7 1.958 49.7 3329 1510 3.379 85.8 2.042 51.9
184A1900 1900 332.7 1.886 47.9 3583 1625 3.43 87.1 2.114 53.7

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 2.25″ (57.1 mm) inside diameter, 4″ (101.6 mm) free length
  • Hyperco A 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-184A Categories: , Tags: , , , , , , , Brand:

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