Description
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PORTS AND FITTINGS
The fuel rail ports are tapped for 8AN ORB.
Appropriate fittings must be selected based on the specific application. Ample space around the fuel rail port(s) is necessary for larger accessories such as fuel pressure regulators, fuel pressure gauges, and fuel pulse dampers. To verify clearance, the dimensional drawings on the product pages can be used as a reference guide.
Manufactured with a large 0.69″ internal bore, the fuel rail can support all necessary engine power requirements.
The rail is CNC machined from solid 6061 aluminum, anodized and laser etched for a high quality surface finish. 
It is compatible with all fuel types including popular alcohol mixtures such as E85.
The Radium fuel rail eliminates the OEM 2 bolt inlet flange which uses a restrictive 0.22″ (5.7mm) orifice. All three ports use -8AN ORB threads.
FUEL INJECTOR COMPATIBILITY
This fuel rail is compatible with factory or OEM equivalent fuel injectors. If upgrading fuel injectors, consult your aftermarket injector supplier for details. Radium Engineering cannot specify any further injector dimensions other than stating ‘OEM equivalent’.
Selection
20-0119-12 Fuel Rail, EVO 4-9
This includes only the basic fuel rail as shown in the picture below. All fittings must be purchased separately. This is perfect for installers building a custom fuel system.
20-0119-PK Fuel Rail Plumbing, EVO 7-9
The plumbing kit includes the items in the image below and allows easy hook-up of the fuel rail with factory feed system and factory regulator.
NOTE: While the fuel rail is compatible with EVO 4-5-6, the plumbing kit is not.
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