3Racing CAC-140 Competition Rear Damper Set for Cactus 2WD  [CAC-140]

3RACING Cactus 2WD Rear Damper Set - CAC-140
Price:
USD$17.60
Brand:
3Racing
Model:
CAC-140
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Technical Overview of 3Racing CAC-140 Rear Dampers

The 3Racing CAC-140 Rear Damper Set is engineered to provide tunable damping characteristics for the Cactus 2WD. Attention to internal valving and consistent oil flow improves chassis feedback and aids in tuning compression and rebound independently. These dampers support racers looking to refine handling balance with predictable shock behaviour.

Setup and Tuning Considerations

When configuring the CAC-140, assess oil viscosity, piston selection, and spring rate as a matched system. Fine adjustments to oil weight alter response speed while piston size changes hysteresis and midband control. Documenting changes helps replicate setups between events.

Materials and Serviceability

Components are chosen for consistent dimensional stability and wear resistance to preserve damping characteristics. The design allows routine disassembly for seal replacement and oil changes, enabling long term service life with correct maintenance intervals.

What piston sizes are recommended for tuning?

Start with the stock piston and test incremental changes. Smaller piston orifices increase damping, larger orifices reduce it. Use track testing to choose the best compromise for your surface.

How does oil viscosity affect rebound vs compression?

Higher viscosity raises both compression and rebound damping but may slow response. Use oil changes combined with spring rate tuning to obtain desired transient behaviour without over-damping.

Recommended maintenance intervals?

Inspect seals and oil after heavy race weekends and perform a full rebuild every few hundred kilometres or sooner if you notice performance drift or leakage.

Can these dampers be customised for different track types?

Yes, adjust oil weight, piston type, and spring rate to tailor behaviour for technical, high grip, or rough circuits. Small incremental changes yield measurable differences in handling.