Technical Advantages of CSOHARA WPC+TiN Final Gear Set R4.1 – GR86 / BRZ
1. Shorter Final Drive Ratio (4.1:1)
The R4.1 final drive ratio (compared to stock 3.9 or 4.1 variants depending on market) delivers a quicker acceleration response by increasing torque multiplication at the wheels. Ideal for track days, touge, or autocross where low- to mid-range punch is crucial.
2. WPC Surface Treatment
WPC (Wonder Process Craft) is a micro-shot peening treatment that drastically enhances surface hardness and fatigue resistance. This results in:
- Reduced friction and heat
- Increased wear resistance
- Enhanced durability under continuous high-load conditions
3. Titanium Nitride (TiN) Coating
TiN adds a super-hard, low-friction gold-colored coating to the gearset, commonly used in high-stress motorsports applications. It provides:
- Superior scuffing and galling resistance
- Extended component life under extreme heat and high torque
- Smoother gear mesh, reducing drivetrain losses and noise
4. Motorsport-Grade Engineering
Designed with precise gear tooth geometry and tight tolerances for optimized meshing and minimal backlash. This ensures efficient torque transfer with reduced mechanical drag, especially valuable in high-revving, NA setups.
5. Ideal for Performance-Tuned NA and FI Builds
Whether running naturally aspirated with shorter gearing for response, or forced induction with quick boost spool, the 4.1 gear ratio supports more aggressive gearing for performance use without making highway cruising unbearable like ultra-short (e.g. 4.5+) final drives.
6. OEM-Compatible Direct Fit
Engineered for direct installation into the OEM differential carrier for GR86 (ZN8) and BRZ (ZD8). Retains stock compatibility with limited slip differentials (LSDs), making it ideal for upgrades without requiring major driveline modifications.
No comments:
Post a Comment