Gun-Drilled Torsion Bars for Sprint Cars

Strange Oval torsion bars have been winning races since 2008. We’re one of racings best kept secrets.

• Repeatable ride height without adjustment
• Holds rate for extended period of time – we’ve run them for 30+ races
• Unparalleled consistency, even after wrecks
• Seamless and smooth spline fit – leave your mallet at home
• Our manufacturing method differs from anything on the market
• Critical hardness and yield numbers are better than anything on the market
• Aircraft quality chrome vanadium steel offers superior yield strength, fatigue properties, and impact toughness
• Vertical rack heat treating controls distortion
• CNC hobbed serration splines for precise and consistent fit
• Generous transition fillet radii essential to reduction of stress risers
• Lightweight gun-drilled design
• Additional attention directed to non-aggressive machining to impart a minimum amount of residual tensile stress
• Shot peening provides increased torsional and bending fatigue life with the application of residual compressive stress
• Laser etched part number on torsion bar O.D. gives the relationship to a common solid bar’s equivalent rate
• Common solid bar number of equivalent rate also engraved onto the end of strange torsion bar for easy identification