Radium Engineering 20-0235 Top Feed Fuel Rail Kit for 1986-1992 Toyota Supra 1JZ

Vehicle Fitment

• 1986-1992 Toyota Supra (MK3) - 1JZ-GTE Non-VVTi, RWD

Features

• CNC-machined aluminum rail with black anodized finish
• 0.69" internal bore for increased fuel flow capacity
• Converts OEM side-feed to top-feed injector configuration
• Supports high-flow injectors for performance applications
• Direct bolt-on installation with included hardware
• Compatible with aftermarket fuel injectors and regulators
• Laser-etched Radium branding for a clean aftermarket look
• Corrosion-resistant finish for long-term durability

Specifications

• Material: 6061 billet aluminum, black anodized
• Internal bore diameter: approx. 0.69 in (17.5 mm)
• Orientation: top-mount fuel rail, driver & passenger side injector banks
• Compatibility: 1JZ-GTE Non-VVTi engines only
• Injector spacing: factory OEM spec for Toyota Supra MK3 platforms

Included Components

• 2x Billet aluminum fuel rails (upper driver and passenger)
• Mounting bracket and hardware

Product Description

The Radium Engineering 20-0235 Fuel Rail Kit is engineered specifically for the 1JZ-GTE Non-VVTi engine found in 1986-1992 Toyota Supra MK3 models. CNC-machined from billet aluminum and finished in black anodize, it replaces the OEM rail with a higher-flow design to support performance tuning, turbo or supercharger upgrades, and E85 fuel use.

Featuring a larger 0.69" internal bore and OEM injector spacing, this rail bolts directly into factory mounting points with included bracketry and hardware - no modifications needed. Compatible with both stock and upgraded injectors and fuel regulators, it ensures consistent, stable fuel delivery under demanding conditions while delivering a clean aesthetic and long-lasting performance.