HPI – High Power Igniter – 15 Amp Eight Channel Flying Lead Loom Only Length: 2.0m (78″)

Professional Harness Architecture: HPI 8-Channel Flying Lead Loom

For high-end V8 and rotary applications, the quality of the ignition wiring is as vital as the igniter itself. The HPI – High Power Igniter – 15 Amp Eight Channel Flying Lead Loom is a 2.0m (78″) professional-grade wiring solution designed to interface with Haltech’s 8-channel igniters. This loom is the definitive starting point for harness integration on engines where the ECU and coils are separated by significant distances. Built using high-temperature automotive grade wiring and a pre-terminated AMP 26-pin Superseal connector, this loom ensures that 15 amps of switching power per channel are delivered with zero signal degradation, which is critical for maintaining detonation protection on high-boost LS-swap or 1UZ builds.

Engineering Principles: 15-Amp High-Current Support

A high-power igniter acts as a bridge, taking low-current ECU signals and switching the high-current ground path for “Dumb” coils. This Analogue-to-Digital interface logic requires wiring that can handle significant thermal and electrical loads. This 2.0m loom uses heavy-gauge primary power and ground feeds to minimize voltage drop across the length of the vehicle. Each of the eight channels is color-coded and clearly labeled, allowing for foolproof standalone ECU integration and sequential ignition mapping. The flying lead configuration means the installer can cut the loom to the exact length required, maintaining a clean, motorsport-grade finish while ensuring that EMI (Electromagnetic Interference) is kept to a minimum through strategic wire routing.

Operational Benefits for Custom V8 and Multi-Rotor Projects

For builders working on a 3-rotor (20B) or a 4-rotor engine, or a twin-turbo V8, this 8-channel loom provides the necessary capacity for full sequential firing. In a fuel map calibration scenario, having a reliable, loomed ignition path means the tuner can trust the spark energy is consistent across all eight cylinders. This is vital for finding the Maximum Brake Torque (MBT) timing on engines running ethanol or methanol fuels. The 2.0-meter length provides the flexibility to mount the HPI8 module in the cabin or on the firewall, away from the extreme radiant heat of turbochargers, which is a key factor in long-term ignition system reliability.

Technical Specs Table

Summary & Includes

The HPI 8-Channel Flying Lead Loom is the professional foundation for high-power ignition systems. Includes: 1 x 2.0m Terminated Flying Lead Loom. Note: This SKU includes the loom only; the HPI8 module and ignition coils must be purchased separately.