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Every Landrum Performance Coil spring comes with a dyno sheet. The dyno sheet shows the dynamic rate and force output for the spring in 0.200” increments. This allows the customer to know exactly what the spring rate is and means when you change a spring, you know exactly what change is being made.
Available in lengths of: 11″, 12″ , 13″, 14″, 15″ & 16″
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Landrum Progressive Coil Over Springs provide the reliable and consistent high performance you need to win.
Progressive springs provide a varying spring rate throughout their range of travel. The initial spring rate is low but progressively increases as the spring is compressed. The springs are commonly used in circle track racing applications to help control body roll when cornering.
Progressive rate coil over springs are produced with varying coil spacing. At one end of the spring the coils are narrow spaced and as the coils progress to the other end of the spring the spacing becomes wider.
When the spring is minimally compressed all coils of the spring are active and a lower spring rate is in effect. As the spring is further compressed, such as when a car takes a set as it enters a corner, the narrow-spaced coils collapse on top of each other until they touch, which is also known as “going solid”. When this happens the number of active coils of the spring is reduced, which results in a higher spring rate.
We manufacture our progressive coil over springs using the highest quality US made High Tensile Chrome Silicon Alloy Steel for strength, reliability, and to maintain their original high-performance characteristics after repeated use.
Since 1966, Landrum Performance Springs have helped put racers in victory lane. Racers and crew chiefs trust Landrum for the best spring performance.
Learn more about how Landrum Springs are designed and manufactured here.
Landrum Dirt Late Model Coil Over Springs are designed especially for Dirt Late Model cars and are engineered for maximum travel, clearance and coil spacing to meet and exceed the extreme demands of this race series. These springs are designed to meet target load numbers without failure.
Landrum Quarter Midget Springs have the highest travel and tightest manufacturing tolerance in the industry. US Made High Tensile Chrome Silicon Wire is used for a high strength and ultra-lightweight spring. Offered in 4” and 5” free length sizes and many spring rates to allow tuning for all track conditions. Landrum is proud to bring racers the best performing Quarter Midget Springs.
Race proven Landrum Quarter Midget Springs reduce unsprung weight and go through a rigorous press and heat treatment process to ensure they are the most accurate and reliable 1/4 Midget Springs on the market. Their high travel spring design provides superior and consistent performance when the going gets bumpy.
Since 1966, Landrum Performance Springs has been providing racers with race winning high performance springs for circle track racing. Using only the best US sourced High Tensile Chrome Silicon Spring Wire, Landrum Quarter Midget Springs are expertly produced at our Indiana location.
Check out this video to learn more.
Technical information about Landrum Spring materials and manufacturing can be found here
Landrum Performance Conical Springs are designed to provide a linear spring rate from free length to solid height while tapering from a 2.5” ID to a 5” OD. They have a 5” OD like a conventional rear spring at one end and a 2.5” ID at the other end. The 5” OD body diameter helps prevent bowing issues on these long, light-rate, high travel springs. Made with the highest quality Chrome Silicone High Tensile steel. With the proper hardware, they can be used as coil-overs or conventional mount springs. Available in 18in length and rates of 50, 075 and 100.