Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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Shop Hyperco At Speedway Motors

The Hyperco product line includes suspension coils (Hypercoils), Hydraulic load centering Spring Perches and Composite Leaf Springs. Hyperco specializes in the development and optimization of these products for the motor racing industry. Hyperco components are utilized by championship winning teams world wide, from the grass roots oval track all the way to the Sprint Cup Series.

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  • Hyperco Street Stock Rear Spring 5-1/2" x 11"
    Hyperco Street Stock Rear Spring 5-1/2" x 11"
    x
                

    These Hyperco 5-1/2" rear springs have an 11" free length which allows the rear of the car to sit lower. One end is closed and the other end has a pigtail.

    Available in 150, 175, 200, 225, 250, 275, or 300 lb. rates.

     


     

  • Hyperco 10203 Chrysler Composite Leaf Spring, 175 Lb. Rate
    Hyperco 10203 Chrysler Composite Leaf Spring, 175 Lb. Rate
    x
                

    Hyperco Composite Leaf Springs are significantly lighter than steel, retain their design arch, and provide more side bite off the corner. The Hyperco CLS is truly a cost effective, high performance alternative to steel. It allows teams running leaf springs to be consistent night after night without having to constantly measure, monitor and change their springs for loss of arch / sagging. The initial cost is a value based on the incredible service life. Leave the steel on the street, hook up with the Hyperco CLS performance advantage.

    • On average 70% lighter than steel
    • No sagging or chassis inconsistency
    • More durable = greater value
    • Quicker off the corner compared to steel springs

    Composite Spring Dimensions (GIF)

  • Hyperco CS-25 Transfer Assist Spring, 1-7/8 I.D., 25 lbs/in.
    Hyperco CS-25 Transfer Assist Spring, 1-7/8 I.D., 25 lbs/in.
    x
                

    Stack these light rate transfer assist springs with your normal front springs to get increased weight transfer through the corner.

    • For small body shocks
    • 1-7/8" I.D.
    • 4" tall
  • Hyperco Coil-Over Racing Springs, 2-1/2 I.D., 10 Inch
    Hyperco Coil-Over Racing Springs, 2-1/2 I.D., 10 Inch
    x
                

    Hyperco's 2-1/2" I.D. chrome silicon wire coil-over springs bring NASCAR technology to your car. These ultra lightweight springs have accurate, consistent rates and carry a lifetime manufacturers warranty. The blue epoxy powder coating is applied thin, yet it is flexible unlike competitors plastic coatings which can build up over time, possibly changing the overall spring rate.

    Available in a variety of rates.

    Hyperco Spring Application Chart (GIF)

    Coil-Over Mounting Guide (GIF)

  • Hyperco 10231 Chrysler Composite Leaf Spring, 200 Lb. Rate
    Hyperco 10231 Chrysler Composite Leaf Spring, 200 Lb. Rate
    x
                

    Hyperco Composite Leaf Springs are significantly lighter than steel, retain their design arch, and provide more side bite off the corner. The Hyperco CLS is truly a cost effective, high performance alternative to steel. It allows teams running leaf springs to be consistent night after night without having to constantly measure, monitor and change their springs for loss of arch / sagging. The initial cost is a value based on the incredible service life. Leave the steel on the street, hook up with the Hyperco CLS performance advantage.

    • On average 70% lighter than steel
    • No sagging or chassis inconsistency
    • More durable = greater value
    • Quicker off the corner compared to steel springs

    Composite Spring Dimensions (GIF)

  • Hyperco 16 Inch Hypercoil UHT Coil Springs
    Hyperco 16 Inch Hypercoil UHT Coil Springs
    x
                

    Ultra High Travel (UHT) Hypercoils are designed specifically for light rate / high travel coil-over applications (dirt & pavement). UHT designs meet the requirements of soft spring / big bar set ups and remain consistent in free length & installed height. The new UHT design features a larger "body bulge" over our standard OBD designs, allowing for additional deflection, rate linearity and resistance to bowing.

    Currently available 16" free length with 2.5" inner diameter.

    Choose from spring rates of 110, 125, 138, 150, 175, and 250.

  • Hyperco 11342 Chevy Composite Leaf Spring, 200 Lb. Rate
    Hyperco 11342 Chevy Composite Leaf Spring, 200 Lb. Rate
    x
                

    Hyperco Composite Leaf Springs are significantly lighter than steel, retain their design arch, and provide more side bite off the corner. The Hyperco CLS is truly a cost effective, high performance alternative to steel. It allows teams running leaf springs to be consistent night after night without having to constantly measure, monitor and change their springs for loss of arch/sagging. The initial cost is a value based on the incredible service life. Leave the steel on the street, hook up with the Hyperco CLS performance advantage.

    • On average 70% lighter than steel
    • No sagging or chassis inconsistency
    • More durable = greater value
    • Quicker off the corner compared to steel springs

    Composite Spring Dimensions (GIF)

  • Hyperco Coil-Over Racing Springs, 2-1/2 I.D., 12 Inch
    Hyperco Coil-Over Racing Springs, 2-1/2 I.D., 12 Inch
    x
                

    Hyperco's 2-1/2" I.D. chrome silicon wire coil-over springs bring NASCAR technology to your car. These ultra lightweight springs have accurate, consistent rates and carry a lifetime manufacturers warranty. The blue epoxy powder coating is applied thin, yet it is flexible unlike competitors plastic coatings which can build up over time, possibly changing the overall spring rate.

    Available in a variety of rates.

    Hyperco Spring Application Chart (GIF)

    Coil-Over Mounting Guide (GIF)

  • Hyperco Coil-Over Racing Springs, 2-1/2 I.D., 14 Inch
    Hyperco Coil-Over Racing Springs, 2-1/2 I.D., 14 Inch
    x
                

    Hyperco's 2-1/2" I.D. chrome silicon wire coil-over springs bring NASCAR technology to your car. These ultra lightweight springs have accurate, consistent rates and carry a lifetime manufacturers warranty. The blue epoxy powder coating is applied thin, yet it is flexible unlike competitors plastic coatings which can build up over time, possibly changing the overall spring rate.

    Available in a variety of rates.

    Hyperco Spring Application Chart (GIF)

    Coil-Over Mounting Guide (GIF)

  • Hyperco 11344 Chevy Composite Leaf Spring, 225 Lb. Rate
    Hyperco 11344 Chevy Composite Leaf Spring, 225 Lb. Rate
    x
                

    Hyperco Composite Leaf Springs are significantly lighter than steel, retain their design arch, and provide more side bite off the corner. The Hyperco CLS is truly a cost effective, high performance alternative to steel. It allows teams running leaf springs to be consistent night after night without having to constantly measure, monitor and change their springs for loss of arch/sagging. The initial cost is a value based on the incredible service life. Leave the steel on the street, hook up with the Hyperco CLS performance advantage.

    • On average 70% lighter than steel
    • No sagging or chassis inconsistency
    • More durable = greater value
    • Quicker off the corner compared to steel springs

    Composite Spring Dimensions (GIF)

  • Hyperco Coil-Over Racing Springs, 1-7/8 I.D., 10 Inch
    Hyperco Coil-Over Racing Springs, 1-7/8 I.D., 10 Inch
    x
                

    Hyperco's 1-7/8" I.D. chrome silicon wire coil-over springs bring NASCAR technology to your car. These ultra lightweight springs have accurate, consistent rates and carry a lifetime manufacturers warranty. The blue epoxy powder coating is applied thin, yet it is flexible unlike competitors plastic coatings which can build up over time, possibly changing the overall spring rate.

    Available in a variety of rates.

    Hyperco Spring Application Chart (GIF)

    Coil-Over Mounting Guide (GIF)

  • Hyperco Coil-Over Racing Springs, 2-1/2 I.D., 8 Inch
    Hyperco Coil-Over Racing Springs, 2-1/2 I.D., 8 Inch
    x
                

    Hyperco's 2-1/2" I.D. chrome silicon wire coil-over springs bring NASCAR technology to your car. These ultra lightweight springs have accurate, consistent rates and carry a lifetime manufacturers warranty. The blue epoxy powder coating is applied thin, yet it is flexible unlike competitors plastic coatings which can build up over time, possibly changing the overall spring rate.

    Available in a variety of rates.

    Hyperco Spring Application Chart (GIF)

    Coil-Over Mounting Guide (GIF)

  • Hyperco 11340 Chevy Composite Leaf Spring, 175 Lb. Rate
    Hyperco 11340 Chevy Composite Leaf Spring, 175 Lb. Rate
    x
                

    Hyperco Composite Leaf Springs are significantly lighter than steel, retain their design arch, and provide more side bite off the corner. The Hyperco CLS is truly a cost effective, high performance alternative to steel. It allows teams running leaf springs to be consistent night after night without having to constantly measure, monitor and change their springs for loss of arch/sagging. The initial cost is a value based on the incredible service life. Leave the steel on the street, hook up with the Hyperco CLS performance advantage.

    • On average 70% lighter than steel
    • No sagging or chassis inconsistency
    • More durable = greater value
    • Quicker off the corner compared to steel springs

    Composite Spring Dimensions (GIF)

  • Hyperco 14 Inch Dirt/Pavement Ultra High Travel Coil Springs
    Hyperco 14 Inch Dirt/Pavement Ultra High Travel Coil Springs
    x
                Ultra High Travel (UHT) Hypercoils are designed specifically for light rate / high travel coil-over applications (dirt & pavement). UHT designs meet the requirements of soft spring / big bar set ups and remain consistent in free length & installed height. The new UHT design features a larger "body bulge" over standard OBD designs, allowing for additional deflection, rate linearity and resistance to bowing.

    These springs are 14" free length with 2.5" inner diameter.

    Choose from spring rates of 125, 140,150, 165, 175, 185, 200, 225 & 250
  • Hyperco Rear Springs, 5" x 20"
    Hyperco Rear Springs, 5" x 20"
    x
                

    These 5" O.D. Hyperco rear springs have a 20" free length.  This allows the spring to stay in contact with the perch at all times and enables a wider range of pre-loading. 

    Choose 100, 125, or 150 lb. rates.

  • Hyperco CS-50 Transfer Assist Spring, 1-7/8 I.D., 50 lbs/in.
    Hyperco CS-50 Transfer Assist Spring, 1-7/8 I.D., 50 lbs/in.
    x
                

    Stack these light rate transfer assist springs with your normal front springs to get increased weight transfer through the corner.

    • For small body shocks
    • 1-7/8" I.D.
    • 4" tall
  • Garage Sale - Hyperco Coil-Over Racing Spring, 2-1/2 I.D., 10 Inch, 325 Rate
    Garage Sale
    Garage Sale - Hyperco Coil-Over Racing Spring, 2-1/2 I.D., 10 Inch, 325 Rate
    x
                Please view the product's page for more information
            
  • Garage Sale - Carrera Coil-Over Springs, 2-1/2 I.D., 10 Inch
    Garage Sale
    Garage Sale - Carrera Coil-Over Springs, 2-1/2 I.D., 10 Inch
    x
                

    Carrera coil-over racing springs are guaranteed to remain within 2% of rate and length - forever! Springs are coil wound of chrome-silicon wire, the strongest spring steel known. This gives more travel and lighter weight. Heat treated and chrome plated. 

    Available in a variety of rates.

    Carrera Spring Rate Chart (GIF)

    Coil-Over Mounting Guide (GIF)

     

    This is garage sale priced because it has been installed and have some scratches.

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS 

  • Hyperco Front Springs 5-1/2" x 11"
    Hyperco Front Springs 5-1/2" x 11"
    x
                Hyperco Front Springs 5-1/2" x 11"
            
  • Garage Sale - Hyperco Coil-Over Racing Spring, 2-1/2 I.D., 10 Inch
    Garage Sale
    Garage Sale - Hyperco Coil-Over Racing Spring, 2-1/2 I.D., 10 Inch
    x
                

    Hyperco's 2-1/2" I.D. chrome silicon wire coil-over springs bring NASCAR technology to your car. These ultra lightweight springs have accurate, consistent rates and carry a lifetime manufacturers warranty. The blue epoxy powder coating is applied thin, yet it is flexible unlike competitors plastic coatings which can build up over time, possibly changing the overall spring rate.

    Hyperco Spring Application Chart (GIF)

    Coil-Over Mounting Guide (GIF)

     

    This spring is garage sale priced because it is marked 650 & 720, but it rated 650.  This one also has some scuffs from shipping. 

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS 

  • Garage Sale - Hyperco Coil-Over Racing Spring, 2-1/2 I.D., 10 Inch
    Garage Sale
    Garage Sale - Hyperco Coil-Over Racing Spring, 2-1/2 I.D., 10 Inch
    x
                

    Hyperco's 2-1/2" I.D. chrome silicon wire coil-over springs bring NASCAR technology to your car. These ultra lightweight springs have accurate, consistent rates and carry a lifetime manufacturers warranty. The blue epoxy powder coating is applied thin, yet it is flexible unlike competitors plastic coatings which can build up over time, possibly changing the overall spring rate.

    Hyperco Spring Application Chart (GIF)

    Coil-Over Mounting Guide (GIF)

     

    This spring is garage sale priced because it is marked 650 & 720, but it rated 650.  This one also has some scuffs from shipping. 

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS