Analog EFI G-Meter 2 Axis

The Holley Analog EFI G-Meter 2 Axis is a real-time acceleration and deceleration monitoring instrument designed for performance builders, tuners, and enthusiasts running modern EFI systems on modified vehicles. This analog gauge integrates directly with Holley V5 ECU platforms, delivering precise lateral and longitudinal g-force data during acceleration, braking, and cornering events. Whether you're validating suspension geometry, fine-tuning engine calibration, or documenting track performance, this dual-axis meter provides the visibility needed to correlate driver input with vehicle dynamics and ECU response.

Constructed from durable black plastic, the Holley Analog EFI G-Meter 2 Axis measures 4.4 x 3.2 x 4.8 inches and weighs just 0.49 pounds, making it a compact dashboard or A-pillar mount option that doesn't compromise visibility. The two-axis sensing architecture captures both vertical (launch) and lateral (turning) load data simultaneously, critical for understanding how weight transfer affects traction, brake fade, and tire slip during aggressive driving. Complete with harness included, installation to any Holley V5 ECU-equipped vehicle is straightforward—no additional wiring harnesses or adapters required for direct plug-and-play integration.

This instrument is essential for carbureted-to-EFI conversion projects, LS swaps, crate engine builds, and any high-performance application where real-time g-force feedback drives tuning decisions. Street and strip builders rely on analog g-meters to validate suspension compliance, detect wheel hop or brake lock conditions, and correlate ECU fuel and spark tables with actual vehicle behavior. The Holley Analog EFI G-Meter 2 Axis works seamlessly with any vehicle using Holley V5 ECU architecture, including modern muscle cars, race-prepared vehicles, and custom builds where precision diagnostics determine the difference between a safe, predictable platform and a dangerous one.