Radium Engineering Fuel Rail Kit for Honda F-Series / H-Series

Radium Fuel Rail Kit, Honda F-Series / H-Series

Application: Honda DOHC VTEC F-Series and H-Series engines (H22A1, H22A4, H23A1, F20A, F20B, F22A1, F22A4, F22A6)
Part Type: High-flow upgrade fuel rail
Part Number: 20-0870

The Radium 20-0870 is a high-flow fuel rail for Honda DOHC VTEC F-Series and H-Series engines. Its large internal bore supports high power, and it is CNC machined from 6061 aluminium, anodised and laser etched.

The injector bores are 11mm ID like the OEM rail, so factory or equivalent aftermarket injectors can be used. The four ports are tapped 8AN ORB; for a hookup to the factory feed line, add a Radium plumbing kit.

Key Features

• Large Bore: Large internal bore for high power
• 8AN ORB Ports: Four tapped 8AN ORB ports
• OEM Injector Bores: 11mm ID, same as OEM
• 6061 Aluminium: CNC machined, anodised and laser etched

Optional Parts

• Radium Fuel Rail Plumbing Kit, Honda F-Series / H-Series (20-0870-PK) – connects the rail to the factory feed line; suits the factory regulator or an aftermarket one
• Radium Fuel Rail Plumbing Kit, Honda B / D / F / H-Series (20-1270-PK) – fuel rail plumbing kit Radium lists for the F/H-Series rail

Important Notes

• This is an upgrade rail – OEM or OEM-equivalent injectors must be used (same height and the same upper and lower O-ring diameters and styles)
• Radium does not make injector recommendations – consult your tuner for brand and flow rate, and the injector manufacturer for a dimensionally correct part number
• Fittings and hose not included
• Fittings are application-specific and sold separately – allow ample clearance around the 8AN ORB ports for regulators, gauges and pulse dampers
• Aftermarket intake manifolds are not tested or verified – the rail follows OEM mounting and positioning, so check with your manifold maker
• Installation instructions are available in the Instructions tab

Vehicle Fitment

• Honda H22A1
• Honda H22A4
• Honda H23A1
• Honda F20A
• Honda F20B
• Honda F22A1
• Honda F22A4
• Honda F22A6

If you're unsure whether this will fit your vehicle, contact our team of experts via email at hello@iilumolab.com and send through a few photos of the car for us to verify fitment.

Installation

We always recommend professional fitment for guaranteed satisfaction. If you're wanting a hassle-free installation, feel free to contact our friendly team as we offer installation services in-store at our Melbourne workshop. For more details, contact us here.

Note

Upon receiving the item, please ensure that the part is indeed the correct item you have ordered. This can be achieved by checking labels on the packaging. Please also ensure a proper test fit of the item is conducted prior to paint and/or installation. Returns/Warranty claims will be voided if the item has been tampered with, or is no longer in resalable/new condition.