Torsion Bar – Sprint Car – 30" Long – Tubular – 1.050 Rate – Left Front or Right Rear
Performance & Fitment
Application: Sprint Car (Winged or Non-Wing)
Position: Left Front (LF) or Right Rear (RR)
Rate: 1.050
Length: 30”
Construction: Tubular (Hollow). By utilizing a large-diameter hollow design, this bar achieves massive resistance while maintaining a faster "rebound speed" than solid alternatives, helping the tire return to the track surface more quickly.
Tuning Profile: * As a Right Rear bar: This is a specialized choice for heavy "hooked-up" tracks or high-banked half-miles where the car is under extreme centrifugal load and requires maximum support to maintain ride height.
As a Left Front bar: It provides an ultra-stiff foundation to control front-end dive, keeping the wing at a consistent aerodynamic angle during high-speed corner entry.
Material: Manufactured from high-strength, aircraft-grade alloy steel, through-hardened for maximum torsional resilience and fatigue resistance.
Precision Manufacturing: Centerless ground to a strict 1.050" tolerance. This ensures uniform wall thickness, which is mandatory for a tubular bar to provide a perfectly linear and repeatable spring rate.
Heat Treatment: Advanced processing maximizes "memory" retention, ensuring the bar returns to its original index night after night and resists sagging under the immense loads of 1,000+ lb cars.
Finish: Precision-machined splines ensure a zero-play interface with your torsion arms and stops for instant chassis feedback.
❌ Maximum Tube Clearance: At 1.050", this bar is at the physical limit of what standard torsion tubes can accommodate. Your chassis tubes must be perfectly straight and surgically clean. Any internal rust, mud, or a slight chassis tweak will cause the bar to bind. A binding 1.050" bar will result in a "zero-travel" suspension, causing the car to bounce uncontrollably.
❌ Shock Valving Requirements: The 1.050" rate has an incredibly high return frequency. You must ensure your shocks (specifically rebound) are valved heavily enough to control this bar. Without proper damping, the car will "pogo" off the corners, destroying traction.
❌ Internal Bore Care: Hollow bars are susceptible to internal corrosion from trapped moisture, which can lead to sudden stress fractures. Keep the internal bore clean and lightly oiled or use protective end caps.
❌ Length Verification: This is a 30" tip-to-tip bar. Ensure your chassis is designed for 30" bars; many standard Sprint Cars utilize 29" bars.
❌ Directional Indexing: This bar is indexed specifically for the Left Front or Right Rear. Installing it on the "wrong" side (RF/LR) will cause the bar to yield (sag) almost immediately as it twists against its intended grain.
- ❌ Hardware Stress: The torque generated by a 1.050" bar is immense. Inspect your torsion arms for "egging" or spline wear; the massive loads can shear standard or worn aluminum hardware.
Premium Construction
⚠️ Critical Fitment Exceptions
A bar of this extreme diameter and rate requires meticulous attention to detail during installation and maintenance:
What’s Included
- One torsion bar
Warranty
Backed by a 1-year warranty for peace of mind.
11 in stock (can be backordered)