Hks-va028-v2.0 May 2026

HKS-VA028-V2.0 is a specific versioned identifier typically associated with technical documentation, firmware, or a hardware revision for an automotive electronics component manufactured by HKS (Hayashi-Koyoshi Seisakusho) , a leading Japanese aftermarket performance parts company.

Based on HKS’s product naming conventions, this identifier most likely corresponds to a Valve Controller or a related electronic boost control accessory, specifically the HKS EVC (Electronic Valve Controller) series.

Owners of the original HKS VA028 often reported two minor but irritating flaws: boost creep at high RPM and diaphragm fatigue after years of track abuse. HKS R&D listened.

The VA028-V2.0 introduces three revolutionary changes:

Many 90s cars cut fuel when you let off the gas to save fuel. This causes backfiring and lag when you get back on the throttle. The VA028 can detect this state and inject a tiny amount of fuel to keep the system primed, effectively creating an "anti-lag" lite effect for turbos.

Identifiers like "hks-va028-v2.0" often follow a structured format that can provide immediate information about the item they represent. Breaking down this identifier:

Due to its popularity, counterfeit copies exist. Warning signs of a fake:

Authorized dealers:

Current MSRP (2025): Approximately $470–$550 USD, depending on spring accessories.

This template provides a basic structure that you can customize based on the specific requirements and details of the "hks-va028-v2.0". If you have more details about the product or system, I can offer a more tailored approach.

The HKS-VA028-v2.0 is a specific model of a Mini Digital Voltmeter Ammeter commonly used for precision electrical monitoring in automotive, solar, and DIY electronic projects. It is a "Panel Amp" meter that provides real-time dual displays for voltage and current. 1. Technical Specifications While specific datasheets can vary by manufacturer, the HKS-VA028-v2.0

generally follows these standard specifications for the 0.28" digital tube series:

Measuring Range: Typically DC 0V–100V for voltage and 0A–10A for current.

Operating Voltage: The meter itself requires a power supply between DC 4V and 30V. Accuracy: Standard measurement accuracy is approximately

Resolution: Voltage resolution is 0.1V, and current resolution is 0.01A.

Display: Dual 0.28-inch LED digital tubes, often in contrasting colors (e.g., Red for Voltage and Blue for Current). Dimensions: Approximately 2. Wiring and Installation

Proper installation is critical, as incorrect current lead placement can damage the unit. According to technical guides for the VA028 series, the standard wiring is as follows: Voltage Leads (Thin Wires): Red: Positive power supply for the meter (4V–30V). Black: Negative/Ground for the meter.

Yellow/White: The "sensing" wire that connects to the positive terminal of the load being measured (0V–100V). Current Leads (Thick Wires): Red: Connects to the negative terminal of the load. hks-va028-v2.0

Black: Connects to the negative terminal of the power source.

Note: The ammeter must be connected in series on the ground/negative side of the circuit. 3. Common Applications

Automotive Performance: Monitoring battery health, alternator output, and parasitic drains in high-performance or off-road vehicles.

Fuel Injection Systems: Used in some specialized tuning setups where current reading accuracy impacts fuel injection timing.

Solar Power Systems: Monitoring the charging current and battery voltage in small-scale off-grid setups.

HKS-VA028-V2.0 is a specific hardware revision for a digital DC voltmeter and ammeter

module. This compact panel meter is widely used by electronics hobbyists and engineers to monitor real-time voltage and current in power supplies, battery chargers, and DIY solar setups. Overview of the HKS-VA028-V2.0 The "0.28" in the model name refers to the 0.28-inch LED display

. These modules are popular because they integrate two essential measurements into a single, space-saving unit. The V2.0 revision often includes minor improvements in power efficiency or measurement stability over previous versions. Core Specifications

While specific tolerances can vary by manufacturer, standard specs for this module include: Voltage Range: 0–100V DC (though some variants support up to 500V). Current Range: Standard models handle up to Display Style: Dual 3-digit LED (usually for voltage and for current). Power Supply: Requires its own operating voltage (usually DC 4–30V ) to power the LEDs. Generally around , which is sufficient for most hobbyist projects. Key Features Built-in Shunt: HKS-VA028-V2

For the 10A version, the current-sensing shunt is typically built directly into the PCB, meaning you don't need a bulky external component. Calibration Potentiometers:

Most V2.0 boards feature two small trim pots on the back, allowing you to fine-tune the voltage and current readings against a professional multimeter. Simple Wiring:

It usually comes with two sets of wires—a thin set for power and a thick set for measuring the load current. Common Use Cases Bench Power Supplies:

Adding a digital readout to a custom-built or older analog power supply. Battery Monitoring:

Keeping an eye on the discharge rate and voltage levels of Li-Po or Lead-Acid batteries in RVs or e-bikes. Solar Systems:

Monitoring the output of small-scale solar panels before they reach a charge controller. Wiring Safety Tip When installing the HKS-VA028-V2.0, ensure the thick black wire

| Feature | HKS-VA028-V2.0 | Turbosmart Hypergate 50 | Tial MVS 50mm | | --- | --- | --- | --- | | Valve Material | Stainless steel with Stellite tip | High-carbon steel | Inconel | | Diaphragm Type | Reinforced silicone (Gen2) | Kevlar-reinforced | Viton | | Base Spring | 0.8 bar (included) | 0.5 bar (sold separately) | 0.6 bar (included) | | Price Range | $$ (Mid-tier) | $$$ (Premium) | $$ (Mid-tier) | | Ease of Spring Swap | Easy (top entry) | Moderate (full disassembly) | Easy (top entry) |

Verdict: 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 HKS-VA028-V2.0 represents the latest evolution in [industry/field] technology, building on the successes of its predecessors to offer improved performance, efficiency, and user experience. This document aims to guide users through the understanding, operation, and maintenance of the HKS-VA028-V2.0. Authorized dealers: