R35 Coil Bracket Kit for Toyota JZ Includes Bracket , Coils and connectors

High-Output Ignition Foundation: R35 Coil Bracket Kit for Toyota JZ

The search for reliable ignition in a high-power Toyota JZ engine often leads to the Nissan R35 GT-R. The R35 Coil Bracket Kit provides the essential hardware to perform this conversion on 1JZ and 2JZ engines. This kit focuses on the mechanical and electrical interface, providing the 6061-T6 Billet Aluminium bracket and 6 Genuine Hitachi R35 Ignition Coils. This conversion is world-renowned for eliminating spark blow-out and providing the energy needed for closed-loop boost control applications where manifold pressures exceed the capabilities of the aging OEM Toyota ignition system. It is a vital upgrade for any standalone ECU integration project where the goal is reliable, high-RPM power.

The Engineering of the Billet Interface

The JZ cylinder head has a specific coil mounting pattern that does not natively accept the R35 “pencil” style coils. This kit’s bracket is CNC-machined to exacting tolerances, ensuring that the R35 coils are perfectly centered over the spark plugs and held securely against the valve cover. The use of billet aluminium provides excellent thermal conductivity, helping to draw heat away from the coils during extreme use. The bracket also features the Haltech Logo and an anodized black finish, adding a high-end aesthetic to the engine bay. Additionally, the kit includes Positive Crankcase Ventilation (PCV) block-offs, which are often required when moving to a high-performance intake manifold or catch-can setup in 2JZ or 1JZ builds.

Operational Benefits: Why Choose Hitachi R35 Coils?

Hitachi is the original equipment manufacturer for the Nissan R35 GT-R coils, and they are widely considered the most reliable “intelligent” coils for performance use. These coils feature internal igniters, meaning they are driven by a low-current signal from the ECU, which simplifies harness integration. They offer a much longer spark duration and higher secondary voltage than the factory Toyota units. This allows the tuner to maintain a clean combustion event even with rich fuel map calibration targets or high levels of water/methanol injection. For the calibrator, this means detonation protection is improved because the spark is consistent and deterministic, pull after pull.

Fitment, Harness Integration, and Connectors

This kit is designed to be universal across the JZ family, fitting 1JZ-GTE, 1JZ VVTi, 2JZ-GTE, and 2JZ VVTi. Unlike the full conversion kit, this version includes the coils and the mating connectors, pins, and seals, but not a pre-made harness. This makes it the perfect choice for professional shops building a custom engine loom from scratch. The included mating connectors ensure that the harness integration meets motorsport standards, providing a weatherproof and vibration-proof connection to each coil. It is highly recommended to use high-quality Tefzel wire for the custom loom to match the performance level of these coils.

Technical Specifications

Summary & Includes

The R35 Coil Bracket Kit is the essential hardware package for upgrading JZ ignition. Includes: Billet Bracket, 6 x Genuine Hitachi R35 Coils, Mating Connector Sets, and PCV Block-offs. Note: Does not include a pre-made harness; ideal for custom loom builds.