HKS Velocity Advanced Computer - 2013+ FR-S / BRZ / 86

Velocity Advanced Computer Tuning System for the 2013+ FR-S, BRZ, and 86

The HKS Velocity Advanced Computer for the 2013+ Scion FR-S, Subaru BRZ, and Toyota 86 is a plug-in engine management interface that allows tuners to adjust fueling and ignition parameters on the FA20 without replacing the factory ECU. The Velocity platform accesses the OEM ECU through the OBD2 interface and allows map table editing for fuel and ignition, which enables proper calibration for performance modifications while retaining the OEM ECU's vehicle integration. All factory systems including traction control, ABS, and instrumentation continue to function normally.

Specs & Highlights

• Plug-in engine management interface
• Accesses OEM ECU via OBD2 for map editing
• Adjusts fuel and ignition parameters
• Retains full OEM ECU integration
• Compatible with HKS supercharger and other performance modifications
• Fitment: 2013+ Scion FR-S / Subaru BRZ / Toyota 86

OBD2 Protocol, ±30% Fuel, ±15° Ignition Correction Range

The Velocity Advanced Computer connects via OBD2 and communicates with the FA20 and FA24 ECU through the K-Line and CAN bus protocols. Adjustable parameters include fuel injection pulse width (±30% correction), ignition timing advance and retard (±15° correction), rev limiter, speed limiter, and boost control target (on forced induction applications). The unit stores up to three maps and allows switching between them. Data logging captures up to 10 parameters simultaneously at 10Hz sample rate. The physical unit dimensions are 130mm × 80mm × 25mm with a single OBD2 cable and a remote button for map switching.

ECU Calibration Tool, Not a Power Adder

The Velocity system is particularly relevant for HKS supercharger system owners. The GT2 kit adds boost to an FA20 tuned for naturally aspirated operation, and the Velocity computer provides the calibration interface to adjust the fuel and ignition maps to match the boosted application. It is also useful for naturally aspirated builds with camshaft, intake, or exhaust modifications that benefit from calibration.

Works with GT2 Supercharger and Other Forced Induction

The Velocity Advanced Computer is a tuning tool that requires tuner knowledge to use effectively. It is not a plug-and-play power adder. It is the interface through which a qualified tuner applies a calibration to your specific build. A professional tune on a chassis dyno using the Velocity system is the correct way to complete the process.

The FT Breakdown

The Velocity system is HKS's answer to the need for accessible ECU calibration on the FA20 platform without full standalone ECU replacement. For the FT86 owner who wants proper calibration for their modifications while keeping the OEM systems intact, the Velocity Advanced Computer is the right tool. The ±30% fuel correction range and ±15° ignition correction range give a qualified tuner enough authority to properly calibrate the GT2 supercharger system, camshaft installations, and equal length headers on the FA20 — the three modifications that most commonly require ECU work beyond what a simple map switch provides. The 10Hz logging rate at 10 parameters simultaneously is sufficient for dyno and on-road calibration work.