Radium Fuel Rail - Toyota 1UZ-FE VVT-i/3UZ-FE
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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.
COMPATIBILITY
97-00 Lexus GS400
00-07 Lexus GS430
00-06 Lexus LS430
01-10 Lexus SC430
OVERVIEW
Manufactured with 0.7" large internal bores, the Radium Engineering fuel rails can support all necessary engine power requirements. 
INJECTORS
The machined injector ports are compatible with 11mm upper injector O-rings. The fuel rails are compatible with OEM fuel injectors (or equivalent).
OEM TOYOTA INJECTORS
No modifications are needed.
AFTERMARKET INJECTORS
These engines use a unique OEM fuel injector that is not replicated in the aftermarket. Air-assist intake manifolds require Radium Engineering air-assist injector seats (shown below) in order to use universal aftermarket fuel injectors. 
When the provided Radium injector seats are installed into these air-assist intake manifolds, an aftermarket injector that is 60mm long with 11mm upper O-ring and 14mm lower O-ring must be used. The following universal injectors have been verified to be compatible, however there are others on the market that will work that are not listed here.
Injector Dynamics ID1050-XDS-60-11-14
Injector Dynamics ID1300-XDS-60-11-14
Injector Dynamics ID1700-XDS-60-11-14
Injector Dynamics ID2600-XDS-60-11-14
PORTS
Each fuel rail has three 8AN ORB (3/4"-16) ports.
Adapter fittings and fuel hose will need to be purchased separately.
FEATURES
-Anodized surface finish for wear and corrosion resistance
-Air-assist seats compatible with OEM injectors
-Lighweight aluminum construction
-Inner bore diameter: 0.7 inch
-Reuses thermal insulating spacers
-No special tools required for installation
