Radium Engineering Top Feed Fuel Rail Kit | 1992-2002 Toyota Supra (20-0215)

The 2JZ-GTE will make legendary power, but not through its factory side feed injectors.

Side feed injector development ended years ago while the 2JZ platform's power ambitions never did. The Radium Engineering Top Feed Fuel Rail Conversion Kit for the Toyota 2JZ-GTE ends the mismatch: compatible with all 2JZ-GTE engines, VVTi and non-VVTi, on the OEM intake manifold, it converts the factory side feed setup to top feed and opens the modern 14mm O-ring injector world. The extruded rail carries a large 0.69" internal bore in custom 6063 aluminum, media blasted, black anodized, and laser etched, with all ports tapped 8AN ORB (3/4"-16). Two sets of anodized mounting feet handle 48mm and 34mm injector heights, and the included press-fit billet injector seats carry O-rings preventing boost pressure leaks. All fuels, E85 included.

What You'll Feel

• The complete modern injector catalog available to the platform that deserves it most
• Rail volume that never limits a single-turbo build, with the 0.69" bore feeding all six evenly
• Boost-sealed injector seats, with O-rings at the press-fit interface where leaks would hide
• Four 8AN ORB ports plumbing feed, return, dampers, and sensors any way the system is drawn
• OEM regulator and factory feed line reuse paths documented, not improvised

Features

• Compatible with all Toyota 2JZ-GTE engines (VVTi and non-VVTi) using the OEM intake manifold
• Converts OEM side feed injection to top feed; injectors NOT included, must have 14mm upper and lower O-rings
• 0.69" internal bore, CNC machined custom 6063 aluminum, media blasted, black anodized, laser etched
• All ports tapped 8AN ORB (3/4"-16 female)
• Two sets of black anodized mounting feet for 48mm or 34mm injector heights, reusing OEM Toyota thermal insulating spacers (90561-08009)
• 20-0216-06 press-fit billet injector seat kit included, O-ring sealed against boost leaks; all fuels including E85

The Details

Radium documents the OEM-integration paths that usually require forum archaeology. To reuse the factory fuel pressure regulator, the 20-0301 adapter fitting mounts it to the rail; note that securing it to the front port requires modifying the Traction Control TPS sensor when tall spacers are used, and rear-port mounting needs a firewall clearance check. To keep the factory feed line, the 14-0285 8AN ORB to M12x1.25 female fitting secures to the rear port and reuses the OEM banjo bolt. Injector fitment is verified by height: 48mm and 34mm short-height injectors with 14mm O-rings fit directly using the appropriate feet, with the Injector Dynamics catalog among the documented direct fitments. The mounting feet secure the rail to the manifold through Toyota's own thermal spacers, keeping the factory heat isolation strategy. Fittings and injectors sold separately.

Kit Includes

• 1x Black anodized laser etched aluminum fuel rail
• Black anodized aluminum mounting feet, tall and short sets
• 4x Stainless steel mounting feet bolts
• 1x 20-0216-06 Toyota injector seat kit (6 cylinder) with O-rings
• Injectors, adapter fittings (20-0301, 14-0285), and plumbing NOT included

Applications

• 1992-2002 Toyota Supra JZA80 and all 2JZ-GTE engines (VVTi and non-VVTi) with the OEM intake manifold
• 2JZ-GTE swap applications retaining the factory manifold
• Injectors with 14mm upper and lower O-rings, 48mm or 34mm heights