Specification
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Landrum Progressive Coil Springs for circle track cars give you rugged and dependable performance that’s trusted by racers nationwide.
In the 1960’s, Landrum Springs owner Robert Landrum, who was also a dirt oval racer, used his racing experience to engineer high performance racing springs that quickly became popular with local racers. As oval track racers nationwide discovered the performance advantage of Landrum Springs, the company became the go-to source for high performance racing springs.
Today, we continue to work closely with racers to deliver the best performing progressive rate coil springs. We ensure Landrum Performance Springs Progressive Coil Springs deliver the performance, durability and long-term consistency racers need to take the best set, every time.
While constant rate coil springs are wound to have equal spacing between the coils, coil spacing of progressive springs varies with narrow spacing at one end of the spring, and wider spacing at the other.
Constant rate coil springs compress at a linear rate, meaning rate of force needed to compress the spring a certain amount remains the same. For example, a spring with a 300 pound-per-inch linear rate (also known as the rate of deflection) will compress one inch when 300 lbs. of compression force are applied. The spring will compress another inch if an additional 300 lbs. of force is added, and so on.
With Progressive rate coil springs, the rate of deflection increases as the as the spring is compressed. The spring has a softer rate at the beginning of its range of travel. So, it can easily cushion small compression forces and shock loads. As compression forces increase the spring progresses to a higher rate to handle larger compression forces.
When it comes to circle track racing, the initial lower spring rate allows the suspension to smoothly take a set as the car enters a corner, and the higher spring rate comes into play as spring compression load increases when weight transfers as the car progresses through the corner.
Landrum produces coil springs with the highest quality US made High Tensile Chrome Silicon Alloy Steel. This results in springs with superior strength, reliability, and the ability to retain their original high-performance qualities after repeated use.
Diameter: 5” OD
Length: 13”
Rates:
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Gold Series Coil Springs are Landrum’s original high performance coil springs. Tried-and-true, Gold Series springs have been trusted by Saturday night racers for over 25 years. Using the latest materials and state-of-the-art engineering, Gold Series Coil Springs represent great performance value.
Gold Series Coil Springs are available in 5” and 5.5” OD and in a wide range of lengths and rates.
Whether used for dirt or pavement racing, superior Landrum engineering and performance lead the way.
Landrum high performance coil springs have the closest tolerances in the industry and are tested to be within 2% of specification. We prove it with a dyno sheet provided with each spring showing the performance of the spring as it is compressed. No other racing spring manufacturer does this.
At Landrum we work with racers and chassis builders to produce the high performance coil springs they need. We take pride in providing our customers with the highest level of service and look forward to helping you with your racing spring needs.
See more Landrum technical information here.
Landrum Performance Stock Appearing Double Pig Tail Rear Springs are made to resemble black painted stock double pig tail springs. Offered in 7″ OD x 14″ with a broad range of rates that make it easy to find the spring you need for the best handling, traction, and overall performance.
Stock Appearing Double Pig Tail Rear Springs are developed for circle track and drag racing classes that require stock appearing springs and don’t require use of spacers or weight jacks.
Landrum Performance Springs are for racers who demand the best spring performance, accuracy, durability, and consistency.
Additional Landrum Performance Springs technical information can be found here.
Landrum Street Stock/Stock Appearing Front Coil Springs are engineered for racing classes that require stock appearing front springs and don’t require use of spacers or weight jacks.
Street Stock and Stock Appearing Front Coil Springs are available in a choice of diameters, free lengths, and spring rates to fit your application.
Additional Landrum Performance Springs technical information can be found here.
Landrum Tight Helix Coil Springs feature more coils and tighter coil spacing. This allows for a higher spring load rate with less travel. They also achieve coil bind faster than conventional springs.
Tight Helix springs feature closely wound coils for a higher number of coils per unit length than a spring with a wider pitch. This allows for a more compact design compared to wider pitch springs.
Many racers and dealers asked Landrum to make these springs, and we delivered. Multiple test sessions were performed to ensure the perfect tight helix rear coil spring.
The increased spring rate of tight helix racing springs helps to minimize body roll when the vehicle is subjected to lateral forces during cornering. This leads to more stable and predictable handling.
Tight helix racing springs can help improve the stability of the vehicle by reducing pitch and dive under braking and acceleration. This ensures that the tires maintain better contact with the track surface.
Landrum high performance engineering and materials provides racers with the best Tight Helix Coil Springs.
Landrum Tight Helix Coil Springs are tested to consistently be within 2% of specification. This ensures racers get the spring rate they are expecting. We prove it with a dyno sheet provided with each spring showing the performance of the spring as it is compressed. No other racing spring manufacturer does this.
Landrum Tight Helix Coil Springs are designed for rear suspension applications and are currently available in the following sizes.
See more Landrum tech information here.