/Coil-Over Suspension Springs
Coil-Over Suspension Springs 2017-11-21T11:04:47+00:00

Coil-Over Suspension Springs

Coil-Over Springs are high-performance, aftermarket suspension springs primarily used in Motorsports and Motor Racing. Hyperco’s coil-over springs, also known as Hypercoils™, offer a wide range of free lengths and rates which provide the suspension designer latitude in creating a motion ratio for the suspension system that will permit an optimized damper or spring assembly to control a wide range of wheel travel.

Hypercoils are available in two different spring design concepts:

Optimum Body Diameter (OBD)

Optimum Body Diameter is the standard spring design for Hyperco coil-over springs. Featuring a unique design concept that adjusts the body diameter of the spring relative to the end coils, an OBD spring enables Hyperco to take full advantage of our ultra-high tensile spring materials by optimizing the applied stress through adjusting the spring’s body diameter.

Ultra High Travel (UHT)

Our Ultra High Travel springs are designed specifically for light rate / high travel coil-over applications, such as dirt and pavement racing. The UHT design meets the requirements of soft spring and big bar set-ups, and remains consistent in free length and installed height. The Ultra High Travel design features a larger “body bulge” over Hyperco’s standard OBD design, which allows for additional deflection, rate linearity, and resistance to bowing.

14B0175UHT Ultra High Travel Coil-Over Spring
Circle Track Racing Suspension Components

Key Benefits of Hypercoils OBD/UHT Coil-Over Springs

  • More usable deflection
  • Less weight than standard suspension springs
  • 2% rate linearity tolerance from 20% to 60% of deflection
  • 4% rate linearity tolerance from 61% to 80% of deflection
  • More resistant to bowing than competitor’s springs
  • Designed to fit all standard hardware
  • Maintain free length and rate throughout a near infinite operational life

 

CATALOG PRODUCTS

Basic Specifications Applications
  • Free length range: 4” to 9”
  • Spring rates: 150#/in to 3800#/in
  • Material: High tensile chrome silicone
  • Finish: Hyperco dark blue powder coat
  • Spring Design(s): Optimum Body Diameter (OBD)
    Note: Some 4″ and 5″ free lengths use a more traditional spring design as there are not enough active coils to allow an OBD design.
  • Catalog: Pages 9 & 10
  • Motorsports: Circle Track and Sports Car Racing*
  • Street Performance: Lighter weight sports cars where handling is important
  • Off-Road: Motorcycles, Quads, Dune Buggies, etc.
Basic Specifications Applications
  • Free length range: 4” to 16”
  • Spring rates: 85#/in to 1300#/in
  • Material: High tensile chrome silicone
  • Finish: Hyperco dark blue powder coat
  • Spring Design(s): Optimum Body Diameter (OBD), Ultra High Travel (UHT), Dual Rate UHT
    Note: Some 4″ and 6″ free lengths use a more traditional spring design as there are not enough active coils to allow an OBD design.
  • Catalog: Pages 10-12
  • Motorsports: Circle Track and Sports Car Racing*
  • Street Performance: Lighter weight sports cars where handling is important
  • Off-Road: Motorcycles, Quads, Dune Buggies, etc.

*- The most popular spring size used in motorsports applications

Basic Specifications Applications
    • Free length range: 4” to 6”
    • Spring rates: 50#/in to 600#/in
    • Material: High tensile chrome silicone
    • Finish: Hyperco dark blue powder coat
    • Spring Design(s): Optimum Body Diameter (OBD)
    • Catalog: Page 12
  • Motorsports: Circle Track and Sports Car Racing*
  • Street Performance: Lighter weight sports cars where handling is important
  • Off-Road: Motorcycles, Quads, Dune Buggies, etc.
Basic Specifications Applications
  • Free length range: 8” to 12”
  • Spring rates: 250#/in to 3600#/in
  • Material: High tensile chrome silicone
  • Finish: Hyperco dark blue powder coat
  • Spring Design(s): Optimum Body Diameter (OBD)
  • Catalog: Pages 12-13
  • Motorsports: Circle Track Racing (Legend Cars, Micro-Sprints, Midgets)
  • Off-Road: Motorcycles, Quads, Dune Buggies, etc.
Basic Specifications Applications
    • Free length range: 6” to 18”
    • Spring rates: 80#/in to 800#/in
    • Material: High tensile chrome silicone
    • Finish: Hyperco dark blue powder coat
    • Spring Design(s): Optimum Body Diameter (OBD), Ultra High Travel (UHT)
      Note: 6″ free lengths use a more traditional spring design as there are not enough active coils to allow an OBD design.
    • Catalog: Page 13
  • Motorsports: Circle Track Racing (Super Modified Pavement, Dirt Short Track)
  • Off-Road & Off-Road Racing: Side x Side and UTV where spring travel and resistance to bowing is important
Basic Specifications Applications
    • Free length range: 20” to 24”
    • Spring rates: 500#/in to 700#/in
    • Material: High tensile chrome silicone
    • Finish: Hyperco dark blue powder coat
    • Spring Design(s): Optimum Body Diameter (OBD)
    • Catalog: Page 13
  • Off-Road & Off-Road Racing: Pick-up Trucks, Light Trucks, Custom Build Off-Road Racing Vehicles
Basic Specifications Applications
  • Free length range: 4” to 5”
  • Spring rates: 300#/in to 3900#/in
  • Material: High tensile chrome silicone
  • Finish: Hyperco dark blue powder coat
  • Spring Design(s): Optimum Body Diameter (OBD)
  • Catalog: Pages 13-14
  • Motorsports: IndyCar, Indy Lights, Sports Car Racing, Prototype Racecars, Tudor Classes, SSCA Racing
Basic Specifications Applications
    • Free length range: 5.5” to 9”
    • Spring rates: 350#/in to 1300#/in
    • Material: High tensile chrome silicone
    • Finish: Hyperco dark blue powder coat
    • Spring Design(s): Optimum Body Diameter (OBD)
    • Catalog: Page 14
  • Motorsports: Sports Car Racing
  • Street Performance: Sports Cars, Sports Sedans where handling is important
Basic Specifications Applications
  • Free length range: 8” to 10”
  • Spring rates: 350#/in to 600#/in
  • Material: High tensile chrome silicone
  • Finish: Hyperco dark blue powder coat
  • Spring Design(s): Optimum Body Diameter (OBD)
  • Catalog: Page 14
  • Motorsports: Sports Car Racing
  • Street Performance: Sports Cars, Sports Sedans where handling is important