The HKS-VA028-V2.0 shines in mid-range responsiveness . It cracks open faster than the Tial MVS at low boost, yet seals more cleanly than the Turbosmart at high boost.
The stem guide bushing now uses a self-lubricating bronze alloy, reducing lateral valve binding—a common cause of inconsistent boost oscillation. hks-va028-v2.0
Monitoring the charging current and battery voltage in small-scale off-grid setups. The HKS-VA028-V2
The HKS-VA028-v2.0 is typically categorized as a "Step 2" or moderate racing profile. It is characterized by increased duration and optimized lift compared to the factory equipment. In practical application, this translates to a significant shift in the power band. While the factory K20A engine might begin to run out of breath near 8,000 RPM, the VA028 v2.0 allows the engine to pull hard well past the factory redline, often unlocking potential up to 9,000 RPM or higher. Monitoring the charging current and battery voltage in
The V2.0 employs a multi-ply, heat-shielded diaphragm that resists cracking from EGTs (Exhaust Gas Temperatures) exceeding 950°C. This directly addresses the failure points found in first-gen units and generic copies.
Connect to the negative side of the power source (ground). Important Safety Tips
Connect the side port (closer to the valve diaphragm) to a dedicated boost source after the throttle body. The top port (cap on V2.0) can be left open or used for a boost controller’s top port reference. Use fuel-grade vacuum line, not silicone (silicone collapses under high heat).
The RISC OS Open Beast theme is based on Beast's default layout
Site design © RISC OS Open Limited 2025 except where indicated